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Fatal error: Call to undefined function filter_var() on line 186 in ump .class.php

tobimichigan

By tobimichigan
in PHP Coding Help

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tobimichigan Member

tobimichigan

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Posted

Im working with php 5.1.6. With xampp 1.5.14.

Im also working on a stock application. If I want to say add stock product (add_stock.php) this error is generated on screen. It seems to refer to a function in ump.class.php

 

Here we go,

ump.class.php

<?php

/**
 * GUMP - A fast, extensible PHP input validation class
 *
 * @author		Sean Nieuwoudt (http://twitter.com/SeanNieuwoudt)
 * @copyright	Copyright (c) 2011 Wixel.net
 * @link		http://github.com/Wixel/GUMP
 * @version     1.0
 */

class GUMP
{	
	// Validation rules for execution
	protected $validation_rules = array();
	
	// Filter rules for execution
	protected $filter_rules = array(); 
	
	// Instance attribute containing errors from last run
	protected $errors = array();
	
	// ** ------------------------- Validation Data ------------------------------- ** //	
	
	public static $basic_tags	  = "<br><p><a><strong><b><i><em><img><blockquote><code><dd><dl><hr><h1><h2><h3><h4><h5><h6><label><ul><li><span><sub><sup>";				
		
	public static $en_noise_words = "about,after,all,also,an,and,another,any,are,as,at,be,because,been,before,
				  				  	 being,between,both,but,by,came,can,come,could,did,do,each,for,from,get,
				  				  	 got,has,had,he,have,her,here,him,himself,his,how,if,in,into,is,it,its,it's,like,
			      				  	 make,many,me,might,more,most,much,must,my,never,now,of,on,only,or,other,
				  				  	 our,out,over,said,same,see,should,since,some,still,such,take,than,that,
				  				  	 the,their,them,then,there,these,they,this,those,through,to,too,under,up,
				  				  	 very,was,way,we,well,were,what,where,which,while,who,with,would,you,your,a,
				  				  	 b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,$,1,2,3,4,5,6,7,8,9,0,_";
				
	// ** ------------------------- Validation Helpers ---------------------------- ** //	
	
	/**
	 * Shorthand method for inline validation 
	 *
	 * @param array $data The data to be validated
	 * @param array $validators The GUMP validators
	 * @return mixed True(boolean) or the array of error messages
	 */
	public static function is_valid(array $data, array $validators) 
	{
		$gump = new Gump();

		$gump->validation_rules($validators);

		if($gump->run($data) === false) {
			return $gump->get_readable_errors(false);
		} else {
			return true;
		}	
	}	
	
	/**
	 * Magic method to generate the validation error messages
	 *
	 * @return string
	 */
	public function __toString()
	{
		return $this->get_readable_errors(true);
	}
	
	/**
	 * Perform XSS clean to prevent cross site scripting
	 * 
	 * @static
	 * @access public
	 * @param  array $data
	 * @return array
	 */
	public static function xss_clean(array $data)
	{
		foreach($data as $k => $v)
		{
			$data[$k] = filter_var($v, FILTER_SANITIZE_STRING);		
		}
		
		return $data;
	}
	
	/**
	 * Getter/Setter for the validation rules
	 *
	 * @param array $rules
	 * @return array
	 */
	public function validation_rules(array $rules = array())
	{
		if(!empty($rules)) {
			$this->validation_rules = $rules;
		} else {
			return $this->validation_rules;
		}		
	}
	
	/**
	 * Getter/Setter for the filter rules
	 *
	 * @param array $rules
	 * @return array
	 */	
	public function filter_rules(array $rules = array())
	{
		if(!empty($rules)) {
			$this->filter_rules = $rules;
		} else {
			return $this->filter_rules;
		}
	}	
	
	/**
	 * Run the filtering and validation after each other
	 *
	 * @param array $data
	 * @return array
	 * @return boolean
	 */
	public function run(array $data)
	{
		$data = $this->filter($data, $this->filter_rules());
		
		$validated = $this->validate(
			$data, $this->validation_rules()
		);		
		
		if($validated !== true) {
			return false;
		} else {
		   return $data;
		}
	}
	
	/**
	 * Sanitize the input data
	 * 
	 * @access public
	 * @param  array $data
	 * @return array
	 */
	public function sanitize(array $input, $fields = NULL, $utf8_encode = true)
	{
		$magic_quotes = (bool)get_magic_quotes_gpc();
		
		if(is_null($fields))
		{
			$fields = array_keys($input);
		}

		foreach($fields as $field)
		{
			if(!isset($input[$field]))
			{
				continue;
			}
			else
			{
				$value = $input[$field]; 
				
				if(is_string($value))
				{
					if($magic_quotes === TRUE)
					{
						$value = stripslashes($value);
					}
					
					if(strpos($value, "\r") !== FALSE)
					{
						$value = trim($value);
					}
					
					if(function_exists('iconv') && function_exists('mb_detect_encoding') && $utf8_encode)
					{
						$current_encoding = mb_detect_encoding($value);
						
						if($current_encoding != 'UTF-8' && $current_encoding != 'UTF-16') {
							$value = iconv($current_encoding, 'UTF-8', $value);
						}
					}
					
					$value = filter_var($value, FILTER_SANITIZE_STRING);
				}
				
				$input[$field] = $value;
			}
		}
		
		return $input;		
	}
	
	/**
	 * Return the error array from the last validation run
	 *
	 * @return array
	 */
	public function errors()
	{
		return $this->errors;
	}
	
	/**
	 * Perform data validation against the provided ruleset
	 * 
	 * @access public
	 * @param  mixed $input
	 * @param  array $ruleset
	 * @return mixed
	 */
	public function validate(array $input, array $ruleset)
	{
		$this->errors = array();
		
		foreach($ruleset as $field => $rules)
		{
			#if(!array_key_exists($field, $input))
			#{
			#	continue;
			#}
			
			$rules = explode('|', $rules);

			foreach($rules as $rule)
			{
				$method = NULL;
				$param  = NULL;
				
				if(strstr($rule, ',') !== FALSE) // has params
				{
					$rule   = explode(',', $rule);
					$method = 'validate_'.$rule[0];
					$param  = $rule[1];
				}
				else
				{
					$method = 'validate_'.$rule;
				}

				if(is_callable(array($this, $method)))
				{
					$result = $this->$method($field, $input, $param);

					if(is_array($result)) // Validation Failed
					{
						$this->errors[] = $result;
					}
				}
				else
				{
					throw new Exception("Validator method '$method' does not exist.");
				}
			}
		}

		return (count($this->errors) > 0)? $this->errors : TRUE;
	}
	
	/**
	 * Process the validation errors and return human readable error messages
	 *
	 * @param bool $convert_to_string = false
	 * @param string $field_class
	 * @param string $error_class	
	 * @return array 
	 * @return string	
	 */
	public function get_readable_errors($convert_to_string = false, $field_class="field", $error_class="error-message")
	{
		if(empty($this->errors)) {
			return ($convert_to_string)? null : array();
		}
		
		$resp = array();
		
		foreach($this->errors as $e) {
		
			$field = ucwords(str_replace(array('_','-'), chr(32), $e['field']));
			$param = $e['param'];
			
			switch($e['rule']) {
				case 'validate_required':
					$resp[] = "The <span class=\"$field_class\">$field</span> field is required";
					break;
				case 'validate_valid_email':
					$resp[] = "The <span class=\"$field_class\">$field</span> field is required to be a valid email address";
					break;
				case 'validate_max_len':
					if($param == 1) {
						$resp[] = "The <span class=\"$field_class\">$field</span> field needs to be shorter than $param character";
					} else {
						$resp[] = "The <span class=\"$field_class\">$field</span> field needs to be shorter than $param characters";
					}
					break;
				case 'validate_min_len':
					if($param == 1) {
						$resp[] = "The <span class=\"$field_class\">$field</span> field needs to be longer than $param character";
					} else {
						$resp[] = "The <span class=\"$field_class\">$field</span> field needs to be longer than $param characters";
					}
					break;
				case 'validate_exact_len':
					if($param == 1) {
						$resp[] = "The <span class=\"$field_class\">$field</span> field needs to be exactly $param character in length";
					} else {
						$resp[] = "The <span class=\"$field_class\">$field</span> field needs to be exactly $param characters in length";
					}
					break;
				case 'validate_alpha':
					$resp[] = "The <span class=\"$field_class\">$field</span> field may only contain alpha characters(a-z)";
					break;
				case 'validate_alpha_numeric':
					$resp[] = "The <span class=\"$field_class\">$field</span> field may only contain alpha-numeric characters";
					break;
				case 'validate_alpha_dash':
					$resp[] = "The <span class=\"$field_class\">$field</span> field may only contain alpha characters & dashes";
					break;
				case 'validate_numeric':
					$resp[] = "The <span class=\"$field_class\">$field</span> field may only contain numeric characters";
					break;
				case 'validate_integer':
					$resp[] = "The <span class=\"$field_class\">$field</span> field may only contain a numeric value";
					break;
				case 'validate_boolean':
					$resp[] = "The <span class=\"$field_class\">$field</span> field may only contain a true or false value";
					break;
				case 'validate_float':
					$resp[] = "The <span class=\"$field_class\">$field</span> field may only contain a float value";
					break;
				case 'validate_valid_url':
					$resp[] = "The <span class=\"$field_class\">$field</span> field is required to be a valid URL";
					break;
				case 'validate_url_exists':
					$resp[] = "The <span class=\"$field_class\">$field</span> URL does not exist";
					break;
				case 'validate_valid_ip':
					$resp[] = "The <span class=\"$field_class\">$field</span> field needs to contain a valid IP address";
					break;
				case 'validate_valid_cc':
					$resp[] = "The <span class=\"$field_class\">$field</span> field needs to contain a valid credit card number";
					break;
				case 'validate_valid_name':
					$resp[] = "The <span class=\"$field_class\">$field</span> field needs to contain a valid human name";
					break;
				case 'validate_contains':
					$resp[] = "The <span class=\"$field_class\">$field</span> field needs contain one of these values: ".implode(', ', $param);
					break;
				case 'validate_street_address':
					$resp[] = "The <span class=\"$field_class\">$field</span> field needs to be a valid street address";
					break;
			}
		}		
		
		if(!$convert_to_string) {
			return $resp;
		} else {
			$buffer = '';
			foreach($resp as $s) {
				$buffer .= "<span class=\"$error_class\">$s</span>";
			}
			return $buffer;
		}
	}
	
	/**
	 * Filter the input data according to the specified filter set 
	 * 
	 * @access public
	 * @param  mixed $input
	 * @param  array $filterset
	 * @return mixed
	 */
	public function filter(array $input, array $filterset)
	{
		foreach($filterset as $field => $filters)
		{
			if(!array_key_exists($field, $input))
			{
				continue;
			}

			$filters = explode('|', $filters);

			foreach($filters as $filter)
			{	
				$params = NULL;
				
				if(strstr($filter, ',') !== FALSE)
				{
					$filter = explode(',', $filter);
					
					$params = array_slice($filter, 1, count($filter) - 1);
					
					$filter = $filter[0];
				}
				
				if(is_callable(array($this, 'filter_'.$filter)))
				{
					$method = 'filter_'.$filter;
					$input[$field] = $this->$method($input[$field], $params);
				}
				else if(function_exists($filter))
				{
					$input[$field] = $filter($input[$field]);
				}
				else
				{
					throw new Exception("Filter method '$filter' does not exist.");
				}
			}
		}	
		
		return $input;
	}
	
	// ** ------------------------- Filters --------------------------------------- ** //
	
	/**
	 * Replace noise words in a string (http://tax.cchgroup.com/help/Avoiding_noise_words_in_your_search.htm)
	 * 
	 * Usage: '<index>' => 'noise_words'
	 *	
	 * @access protected
	 * @param  string $value
	 * @param  array $params
	 * @return string
	 */
	protected function filter_noise_words($value, $params = NULL)
	{
		$value = preg_replace('/\s\s+/u', chr(32),$value);
		
		$value = " $value ";
				
		$words = explode(',', self::$en_noise_words);
		
		foreach($words as $word)
		{
			$word = trim($word);
			
			$word = " $word "; // Normalize
			
			if(stripos($value, $word) !== FALSE)
			{
				$value = str_ireplace($word, chr(32), $value);
			}
		}

		return trim($value);
	}
	
	/**
	 * Remove all known punctuation from a string
	 * 
	 * Usage: '<index>' => 'rmpunctuataion'
	 *	
	 * @access protected
	 * @param  string $value
	 * @param  array $params
	 * @return string
	 */
	protected function filter_rmpunctuation($value, $params = NULL)
	{
		return preg_replace("/(?![.=$'€%-])\p{P}/u", '', $value);
	}
	
	/**
	 * Translate an input string to a desired language [DEPRECIATED]
	 *
	 * Any ISO 639-1 2 character language code may be used 
	 *
	 * See: http://www.science.co.il/language/Codes.asp?s=code2
	 *
	 * @access protected
	 * @param  string $value
	 * @param  array $params
	 * @return string
	 */
	/*
	protected function filter_translate($value, $params = NULL)
	{
		$input_lang  = 'en';
		$output_lang = 'en';
		
		if(is_null($params))
		{
			return $value;
		}
		
		switch(count($params))
		{
			case 1:
				$input_lang  = $params[0];
				break;
			case 2:
				$input_lang  = $params[0];
				$output_lang = $params[1];
				break;
		}
		
		$text = urlencode($value);

		$translation = file_get_contents(
			"http://ajax.googleapis.com/ajax/services/language/translate?v=1.0&q={$text}&langpair={$input_lang}|{$output_lang}" 
		);
		
		$json = json_decode($translation, true);
		
		if($json['responseStatus'] != 200)
		{
			return $value;
		}
		else
		{
			return $json['responseData']['translatedText'];
		}		
	}
	*/
		
	/**
	 * Sanitize the string by removing any script tags
	 * 
	 * Usage: '<index>' => 'sanitize_string'
	 *	
	 * @access protected
	 * @param  string $value
	 * @param  array $params
	 * @return string
	 */
	protected function filter_sanitize_string($value, $params = NULL)
	{
		return filter_var($value, FILTER_SANITIZE_STRING);
	}
	
	/**
	 * Sanitize the string by urlencoding characters
	 * 
	 * Usage: '<index>' => 'urlencode'
	 *	
	 * @access protected
	 * @param  string $value
	 * @param  array $params	
	 * @return string
	 */
	protected function filter_urlencode($value, $params = NULL)
	{
		return filter_var($value, FILTER_SANITIZE_ENCODED);  
	}
	
	/**
	 * Sanitize the string by converting HTML characters to their HTML entities
	 * 
	 * Usage: '<index>' => 'htmlencode'
	 *	
	 * @access protected
	 * @param  string $value
	 * @param  array $params
	 * @return string
	 */
	protected function filter_htmlencode($value, $params = NULL)
	{
		return filter_var($value, FILTER_SANITIZE_SPECIAL_CHARS);  
	}
	
	/**
	 * Sanitize the string by removing illegal characters from emails
	 * 
	 * Usage: '<index>' => 'sanitize_email'
	 *	
	 * @access protected
	 * @param  string $value
	 * @param  array $params
	 * @return string
	 */
	protected function filter_sanitize_email($value, $params = NULL)
	{
		return filter_var($value, FILTER_SANITIZE_EMAIL);  
	}
	
	/**
	 * Sanitize the string by removing illegal characters from numbers
	 * 
	 * @access protected
	 * @param  string $value
	 * @param  array $params
	 * @return string
	 */
	protected function filter_sanitize_numbers($value, $params = NULL)
	{
		return filter_var($value, FILTER_SANITIZE_NUMBER_INT);  
	}
	
	/**
	 * Filter out all HTML tags except the defined basic tags
	 * 
	 * @access protected
	 * @param  string $value
	 * @param  array $params
	 * @return string
	 */	
	protected function filter_basic_tags($value, $params = NULL)
	{
		return strip_tags($value, self::$basic_tags);
	}
	
	/**
	 * Filter out all SQL Valnurablities 
	 * 
	 * @access protected
	 * @param  string $value
	 * @param  array $params
	 * @return string
	 */	
	protected function filter_mysql_escape($value, $params = NULL)
	{
		return mysql_real_escape_string($value);
	}

	
	// ** ------------------------- Validators ------------------------------------ ** //	
	
	/**
	 * Verify that a value is contained within the pre-defined value set
	 * 
	 * Usage: '<index>' => 'contains,value value value'
	 *	
	 * @access protected
	 * @param  string $field
	 * @param  array $input
	 * @return mixed
	 */
	protected function validate_contains($field, $input, $param = NULL)
	{
		$param = trim(strtolower($param));
		
		$value = trim(strtolower($input[$field]));
		
		if (preg_match_all('#\'(.+?)\'#', $param, $matches, PREG_PATTERN_ORDER)) {
			$param = $matches[1];
		} else  {
			$param = explode(chr(32), $param);
		}

		if(in_array($value, $param)) { // valid, return nothing
			return;
		} else {
			return array(
				'field' => $field,
				'value' => $value,
				'rule'	=> __FUNCTION__,
				'param' => $param
			);			
		}
	}	
	
	/**
	 * Check if the specified key is present and not empty
	 * 
	 * Usage: '<index>' => 'required'
	 *
	 * @access protected
	 * @param  string $field
	 * @param  array $input
	 * @return mixed
	 */
	protected function validate_required($field, $input, $param = NULL)
	{
		if(isset($input[$field]) && trim($input[$field]) != '')
		{
			return;
		}
		else
		{
			return array(
				'field' => $field,
				'value' => NULL,
				'rule'	=> __FUNCTION__,
				'param' => $param
			);
		}
	}
	
	/**
	 * Determine if the provided email is valid
	 * 
	 * Usage: '<index>' => 'valid_email'
	 *	
	 * @access protected
	 * @param  string $field
	 * @param  array $input
	 * @return mixed
	 */
	protected function validate_valid_email($field, $input, $param = NULL)
	{
		if(!isset($input[$field]) || empty($input[$field]))
		{
			return;
		}
	
		if(!filter_var($input[$field], FILTER_VALIDATE_EMAIL))
		{
			return array(
				'field' => $field,
				'value' => $input[$field],
				'rule'	=> __FUNCTION__,
				'param' => $param				
			);
		}
	}
	
	/**
	 * Determine if the provided value length is less or equal to a specific value
	 * 
	 * Usage: '<index>' => 'max_len,240'
	 *	
	 * @access protected
	 * @param  string $field
	 * @param  array $input
	 * @return mixed
	 */
	protected function validate_max_len($field, $input, $param = NULL)
	{
		if(!isset($input[$field]))
		{
			return;
		}
		
		if(function_exists('mb_strlen'))
		{
			if(mb_strlen($input[$field]) <= (int)$param)
			{
				return;
			}
		}
		else
		{
			if(strlen($input[$field]) <= (int)$param)
			{
				return;
			}
		}

		return array(
			'field' => $field,
			'value' => $input[$field],
			'rule'	=> __FUNCTION__,
			'param' => $param
		);		
	}
	
	/**
	 * Determine if the provided value length is more or equal to a specific value
	 * 
	 * Usage: '<index>' => 'min_len,4'
	 *	
	 * @access protected
	 * @param  string $field
	 * @param  array $input
	 * @return mixed
	 */
	protected function validate_min_len($field, $input, $param = NULL)
	{
		if(!isset($input[$field]))
		{
			return;
		}
		
		if(function_exists('mb_strlen'))
		{
			if(mb_strlen($input[$field]) >= (int)$param)
			{
				return;
			}
		}
		else
		{
			if(strlen($input[$field]) >= (int)$param)
			{
				return;
			}
		}

		return array(
			'field' => $field,
			'value' => $input[$field],
			'rule'	=> __FUNCTION__,
			'param' => $param			
		);
	}
	
	/**
	 * Determine if the provided value length matches a specific value
	 * 
	 * Usage: '<index>' => 'exact_len,5'
	 *	
	 * @access protected
	 * @param  string $field
	 * @param  array $input
	 * @return mixed
	 */
	protected function validate_exact_len($field, $input, $param = NULL)
	{
		if(!isset($input[$field]))
		{
			return;
		}

		if(function_exists('mb_strlen'))
		{
			if(mb_strlen($input[$field]) == (int)$param)
			{
				return;
			}
		}
		else
		{
			if(strlen($input[$field]) == (int)$param)
			{
				return;
			}
		}

		return array(
			'field' => $field,
			'value' => $input[$field],
			'rule'	=> __FUNCTION__,
			'param' => $param			
		);
	}
	
	/**
	 * Determine if the provided value contains only alpha characters
	 * 
	 * Usage: '<index>' => 'alpha'
	 *
	 * @access protected
	 * @param  string $field
	 * @param  array $input
	 * @return mixed
	 */
	protected function validate_alpha($field, $input, $param = NULL)
	{
		if(!isset($input[$field]) || empty($input[$field]))
		{
			return;
		}
		
		if(!preg_match("/^([a-zÀÁÂÃÄÅÇÈÉÊËÌÍÎÏÒÓÔÕÖÙÚÛÜÝàáâãäåçèéêëìíîïðòóôõöùúûüýÿ])+$/i", $input[$field]) !== FALSE)
		{
			return array(
				'field' => $field,
				'value' => $input[$field],
				'rule'	=> __FUNCTION__,
				'param' => $param				
			);
		}
	}
	
	/**
	 * Determine if the provided value contains only alpha-numeric characters
	 * 
	 * Usage: '<index>' => 'alpha_numeric'
	 *	
	 * @access protected
	 * @param  string $field
	 * @param  array $input
	 * @return mixed
	 */	
	protected function validate_alpha_numeric($field, $input, $param = NULL)
	{	
		if(!isset($input[$field]) || empty($input[$field]))
		{
			return;
		}
		
		if(!preg_match("/^([a-z0-9ÀÁÂÃÄÅÇÈÉÊËÌÍÎÏÒÓÔÕÖÙÚÛÜÝàáâãäåçèéêëìíîïðòóôõöùúûüýÿ])+$/i", $input[$field]) !== FALSE)
		{
			return array(
				'field' => $field,
				'value' => $input[$field],
				'rule'	=> __FUNCTION__,
				'param' => $param				
			);
		}
	}
	
	/**
	 * Determine if the provided value contains only alpha characters with dashed and underscores
	 * 
	 * Usage: '<index>' => 'alpha_dash'
	 *	
	 * @access protected
	 * @param  string $field
	 * @param  array $input
	 * @return mixed
	 */
	protected function validate_alpha_dash($field, $input, $param = NULL)
	{
		if(!isset($input[$field]) || empty($input[$field]))
		{
			return;
		}
		
		if(!preg_match("/^([a-z0-9ÀÁÂÃÄÅÇÈÉÊËÌÍÎÏÒÓÔÕÖÙÚÛÜÝàáâãäåçèéêëìíîïðòóôõöùúûüýÿ_-])+$/i", $input[$field]) !== FALSE)
		{
			return array(
				'field' => $field,
				'value' => $input[$field],
				'rule'	=> __FUNCTION__,
				'param' => $param				
			);
		}
	}
	
	/**
	 * Determine if the provided value is a valid number or numeric string
	 * 
	 * Usage: '<index>' => 'numeric'
	 *	
	 * @access protected
	 * @param  string $field
	 * @param  array $input
	 * @return mixed
	 */
	protected function validate_numeric($field, $input, $param = NULL)
	{
		if(!isset($input[$field]) || empty($input[$field]))
		{
			return;
		}
		
		if(!is_numeric($input[$field]))
		{
			return array(
				'field' => $field,
				'value' => $input[$field],
				'rule'	=> __FUNCTION__,
				'param' => $param				
			);
		}
	}
	
	/**
	 * Determine if the provided value is a valid integer
	 * 
	 * Usage: '<index>' => 'integer'
	 *	
	 * @access protected
	 * @param  string $field
	 * @param  array $input
	 * @return mixed
	 */
	protected function validate_integer($field, $input, $param = NULL)
	{
		if(!isset($input[$field]) || empty($input[$field]))
		{
			return;
		}
		
		if(!filter_var($input[$field], FILTER_VALIDATE_INT))
		{
			return array(
				'field' => $field,
				'value' => $input[$field],
				'rule'	=> __FUNCTION__,
				'param' => $param				
			);
		}
	}
	
	/**
	 * Determine if the provided value is a PHP accepted boolean
	 * 
	 * Usage: '<index>' => 'boolean'
	 *
	 * @access protected
	 * @param  string $field
	 * @param  array $input
	 * @return mixed
	 */
	protected function validate_boolean($field, $input, $param = NULL)
	{
		if(!isset($input[$field]) || empty($input[$field]))
		{
			return;
		}
		
		$bool = filter_var($input[$field], FILTER_VALIDATE_BOOLEAN);
		
		if(!is_bool($bool))
		{
			return array(
				'field' => $field,
				'value' => $input[$field],
				'rule'	=> __FUNCTION__,
				'param' => $param				
			);
		}
	}
	
	/**
	 * Determine if the provided value is a valid float
	 * 
	 * Usage: '<index>' => 'float'
	 *	
	 * @access protected
	 * @param  string $field
	 * @param  array $input
	 * @return mixed
	 */
	protected function validate_float($field, $input, $param = NULL)
	{
		if(!isset($input[$field]) || empty($input[$field]))
		{
			return;
		}
		
		if(!filter_var($input[$field], FILTER_VALIDATE_FLOAT))
		{
			return array(
				'field' => $field,
				'value' => $input[$field],
				'rule'	=> __FUNCTION__,
				'param' => $param				
			);
		}
	}
	
	/**
	 * Determine if the provided value is a valid URL
	 * 
	 * Usage: '<index>' => 'valid_url'
	 *
	 * @access protected
	 * @param  string $field
	 * @param  array $input
	 * @return mixed
	 */
	protected function validate_valid_url($field, $input, $param = NULL)
	{
		if(!isset($input[$field]) || empty($input[$field]))
		{
			return;
		}
		
		if(!filter_var($input[$field], FILTER_VALIDATE_URL))
		{
			return array(
				'field' => $field,
				'value' => $input[$field],
				'rule'	=> __FUNCTION__,
				'param' => $param				
			);
		}
	}
	
	/**
	 * Determine if a URL exists & is accessible
	 *
	 * Usage: '<index>' => 'url_exists'
	 *	
	 * @access protected
	 * @param  string $field
	 * @param  array $input
	 * @return mixed
	 */
	protected function validate_url_exists($field, $input, $param = NULL)
	{
		if(!isset($input[$field]) || empty($input[$field]))
		{
			return;
		}
		
		$url = str_replace(
			array('http://', 'https://', 'ftp://'), '', strtolower($input[$field])
		);

		if(function_exists('checkdnsrr'))
		{
			if(!checkdnsrr($url))
			{
				return array(
					'field' => $field,
					'value' => $input[$field],
					'rule'	=> __FUNCTION__,
					'param' => $param					
				);
			}	
		}
		else
		{
			if(gethostbyname($url) == $url)
			{
				return array(
					'field' => $field,
					'value' => $input[$field],
					'rule'	=> __FUNCTION__,
					'param' => $param					
				);
			}
		}
	}
	
	/**
	 * Determine if the provided value is a valid IP address
	 * 
	 * Usage: '<index>' => 'valid_ip'
	 *	
	 * @access protected
	 * @param  string $field
	 * @param  array $input
	 * @return mixed
	 */
	protected function validate_valid_ip($field, $input, $param = NULL)
	{
		if(!isset($input[$field]) || empty($input[$field]))
		{
			return;
		}
		
		if(!filter_var($input[$field], FILTER_VALIDATE_IP) !== FALSE)
		{
			return array(
				'field' => $field,
				'value' => $input[$field],
				'rule'	=> __FUNCTION__,
				'param' => $param				
			);
		}
	}
	
	/**
	 * Determine if the provided value is a valid IPv4 address
	 * 
	 * Usage: '<index>' => 'valid_ipv4'
	 *	
	 * @access protected
	 * @param  string $field
	 * @param  array $input
	 * @return mixed
	 */
	protected function validate_valid_ipv4($field, $input, $param = NULL)
	{
		if(!isset($input[$field]) || empty($input[$field]))
		{
			return;
		}
		
		if(!filter_var($input[$field], FILTER_VALIDATE_IP, FILTER_FLAG_IPV4) !== FALSE)
		{
			return array(
				'field' => $field,
				'value' => $input[$field],
				'rule'	=> __FUNCTION__,
				'param' => $param				
			);
		}
	}	
	
	/**
	 * Determine if the provided value is a valid IPv6 address
	 * 
	 * Usage: '<index>' => 'valid_ipv6'
	 *	
	 * @access protected
	 * @param  string $field
	 * @param  array $input
	 * @return mixed
	 */
	protected function validate_valid_ipv6($field, $input, $param = NULL)
	{
		if(!isset($input[$field]) || empty($input[$field]))
		{
			return;
		}
		
		if(!filter_var($input[$field], FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) !== FALSE)
		{
			return array(
				'field' => $field,
				'value' => $input[$field],
				'rule'	=> __FUNCTION__,
				'param' => $param				
			);
		}
	}	
	
	/**
	 * Determine if the input is a valid credit card number 
	 *
	 * See: http://stackoverflow.com/questions/174730/what-is-the-best-way-to-validate-a-credit-card-in-php
	 * Usage: '<index>' => 'valid_cc'	
	 * 
	 * @access protected
	 * @param  string $field
	 * @param  array $input
	 * @return mixed
	 */
	protected function validate_valid_cc($field, $input, $param = NULL)
	{
		if(!isset($input[$field]) || empty($input[$field]))
		{
			return;
		}
		
		$number = preg_replace('/\D/', '', $input[$field]);		
		
		if(function_exists('mb_strlen'))
		{
			$number_length = mb_strlen($input[$field]);
		}
		else
		{
			$number_length = strlen($input[$field]);
		}		
	
	  	$parity = $number_length % 2;
	
	 	$total = 0;
	
	  	for($i = 0; $i < $number_length; $i++) 
		{
	    	$digit = $number[$i];

	    	if ($i % 2 == $parity) 
			{
	      		$digit *= 2;
	
	      		if ($digit > 9) 
				{
	        		$digit -= 9;
	      		}
	    	}

	    	$total += $digit;
	  	}	
	
		if($total % 10 == 0)
		{
			return; // Valid
		}
		else
		{
			return array(
				'field' => $field,
				'value' => $input[$field],
				'rule'	=> __FUNCTION__,
				'param' => $param				
			);
		}
	}
	
	/**
	 * Determine if the input is a valid human name [Credits to http://github.com/ben-s]
	 *
	 * See: https://github.com/Wixel/GUMP/issues/5
	 * Usage: '<index>' => 'valid_name'
	 * 
	 * @access protected
	 * @param  string $field
	 * @param  array $input
	 * @return mixed
	 */
	protected function validate_valid_name($field, $input, $param = NULL)
	{
		if(!isset($input[$field])|| empty($input[$field]))
		{
			return;
		}
		
	    if(!preg_match("/^([a-zÀÁÂÃÄÅÇÈÉÊËÌÍÎÏÒÓÔÕÖÙÚÛÜÝàáâãäåçèéêëìíîïñðòóôõöùúûüýÿ '-])+$/i", $input[$field]) !== FALSE)
	    {
	        return array(
	            'field' => $field,
	            'value' => $input[$field],
	            'rule'  => __FUNCTION__,
				'param' => $param	
	        );
	    }
	}
	
	/**
	 * Determine if the provided input is likely to be a street address using weak detection
	 * 
	 * Usage: '<index>' => 'street_address'
	 *	
	 * @access protected
	 * @param  string $field
	 * @param  array $input
	 * @return mixed
	 */
	protected function validate_street_address($field, $input, $param = NULL)
	{	
		if(!isset($input[$field])|| empty($input[$field]))
		{
			return;
		}
		
		// Theory: 1 number, 1 or more spaces, 1 or more words
		$hasLetter = preg_match('/[a-zA-Z]/', $input[$field]);
		$hasDigit  = preg_match('/\d/'      , $input[$field]);
		$hasSpace  = preg_match('/\s/'      , $input[$field]);
		
		$passes = $hasLetter && $hasDigit && $hasSpace;
				
		if(!$passes) {
			return array(
				'field' => $field,
				'value' => $input[$field],
				'rule'	=> __FUNCTION__,
				'param' => $param
			);
		}
	}	
	
} // EOC

Here is add_stock.php

<?php
include_once("init.php");

?>
<!DOCTYPE html>

<html lang="en">
<head>
	<meta charset="utf-8">
	<title>POSNIC - Add Stock Category</title>
	
	<!-- Stylesheets -->
	<link href='http://fonts.googleapis.com/css?family=Droid+Sans:400,700' rel='stylesheet'>
	<link rel="stylesheet" href="css/style.css">
        <link rel="stylesheet" href="js/date_pic/date_input.css">
        <link rel="stylesheet" href="lib/auto/css/jquery.autocomplete.css">
	
	<!-- Optimize for mobile devices -->
	<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
	
	<!-- jQuery & JS files -->
	<?php include_once("tpl/common_js.php"); ?>
	<script src="js/script.js"></script>  
        <script src="js/date_pic/jquery.date_input.js"></script>  
        <script src="lib/auto/js/jquery.autocomplete.js "></script>  
 
		<script>
	/*$.validator.setDefaults({
		submitHandler: function() { alert("submitted!"); }
	});*/
	$(document).ready(function() {
		$("#supplier").autocomplete("supplier1.php", {
		width: 160,
		autoFill: true,
		selectFirst: true
	});
		$("#category").autocomplete("category.php", {
		width: 160,
		autoFill: true,
		selectFirst: true
	});
		// validate signup form on keyup and submit
		$("#form1").validate({
			rules: {
				name: {
					required: true,
					minlength: 3,
					maxlength: 200
				},
				stockid: {
					required: true,
					minlength: 3,
					maxlength: 200
				},
				cost: {
					required: true,
					
				},
				sell: {
					required: true,
					
				}
			},
			messages: {
				name: {
					required: "Please Enter Stock Name",
					minlength: "Category Name must consist of at least 3 characters"
				},
				stockid: {
					required: "Please Enter Stock ID",
					minlength: "Category Name must consist of at least 3 characters"
				},
				sell: {
					required: "Please Enter Selling Price",
					minlength: "Category Name must consist of at least 3 characters"
				},
				cost: {
					required: "Please Enter Cost Price",
					minlength: "Category Name must consist of at least 3 characters"
				}
			}
		});
	
	});
function numbersonly(e){
        var unicode=e.charCode? e.charCode : e.keyCode
        if (unicode!=8 && unicode!=46 && unicode!=37 && unicode!=38 && unicode!=39 && unicode!=40 && unicode!=9){ //if the key isn't the backspace key (which we should allow)
        if (unicode<48||unicode>57)
        return false
    }
    }
	</script>
	</script>

</head>
<body>

	<!-- TOP BAR -->
	<?php include_once("tpl/top_bar.php"); ?>
	<!-- end top-bar -->
	
	
	
	<!-- HEADER -->
	<div id="header-with-tabs">
		
		<div class="page-full-width cf">
	
			<ul id="tabs" class="fl">
				<li><a href="dashboard.php" class="dashboard-tab">Dashboard</a></li>
				<li><a href="view_sales.php" class="sales-tab">Sales</a></li>
				<li><a href="view_customers.php" class=" customers-tab">Customers</a></li>
				<li><a href="view_purchase.php" class="purchase-tab">Purchase</a></li>
				<li><a href="view_supplier.php" class=" supplier-tab">Supplier</a></li>
				<li><a href="view_product.php" class="active-tab stock-tab">Stocks / Products</a></li>
				<li><a href="view_payments.php" class="payment-tab">Payments / Outstandings</a></li>
				<li><a href="view_report.php" class="report-tab">Reports</a></li>
			</ul> <!-- end tabs -->
			
			<!-- Change this image to your own company's logo -->
			<!-- The logo will automatically be resized to 30px height. -->
			<a href="#" id="company-branding-small" class="fr"><img src="<?php if(isset($_SESSION['logo'])) { echo "upload/".$_SESSION['logo'];}else{ echo "upload/posnic.png"; } ?>" alt="Point of Sale" /></a>
			
		</div> <!-- end full-width -->	

	</div> <!-- end header -->
	
	
	
	<!-- MAIN CONTENT -->
	<div id="content">
		
		<div class="page-full-width cf">

			<div class="side-menu fl">
				
				<h3>Stock Management</h3>
				<ul>
					<li><a href="add_stock.php">Add Stock/Product</a></li>
					<li><a href="view_product.php">View Stock/Product</a></li>
					<li><a href="add_category.php">Add Stock Category</a></li>
					<li><a href="view_category.php">view Stock Category</a></li>
                                        <li><a href="view_stock_availability.php">view Stock Available</a></li>
				
                                  
                                </ul>
                               
                                
			</div> <!-- end side-menu -->
                        
			<div class="side-content fr">
			
				<div class="content-module">
				
					<div class="content-module-heading cf">
					
						<h3 class="fl">Add Stock </h3>
						<span class="fr expand-collapse-text">Click to collapse</span>
                                                <div style="margin-top: 15px;margin-left: 150px"></div>
						<span class="fr expand-collapse-text initial-expand">Click to expand</span>
					
					</div> <!-- end content-module-heading -->
					
						<div class="content-module-main cf">
				
							
					<?php
					//Gump is libarary for Validatoin
					
					if(isset($_POST['name'])){
					$_POST = $gump->sanitize($_POST);
					$gump->validation_rules(array(
						'name'    	  => 'required|max_len,100|min_len,3',
						'stockid'     => 'required|max_len,200',
						'sell'     => 'required|max_len,200',
						'cost'     => 'required|max_len,200',
						'supplier'     => 'max_len,200',
						'category'     => 'max_len,200'

					));
				
					$gump->filter_rules(array(
						'name'    	  => 'trim|sanitize_string|mysql_escape',
						'stockid'     => 'trim|sanitize_string|mysql_escape',
						'sell'     => 'trim|sanitize_string|mysql_escape',
						'cost'     => 'trim|sanitize_string|mysql_escape',
						'category'     => 'trim|sanitize_string|mysql_escape',
						'supplier'     => 'trim|sanitize_string|mysql_escape'

					));
				
					$validated_data = $gump->run($_POST);
					$name 		= "";
					$stockid 	= "";
					$sell           = "";
					$cost    	= "";
					$supplier 	= "";
					$category 	= "";
			

					if($validated_data === false) {
							echo $gump->get_readable_errors(true);
					} else {
						
						
							$name=mysql_real_escape_string($_POST['name']);
							$stockid=mysql_real_escape_string($_POST['stockid']);
							$sell=mysql_real_escape_string($_POST['sell']);
							$cost=mysql_real_escape_string($_POST['cost']);
							$supplier=mysql_real_escape_string($_POST['supplier']);
							$category=mysql_real_escape_string($_POST['category']);
							
						
						$count = $db->countOf("stock_details", "stock_name ='$name'");
		if($count>1)
			{
	        $data='Dublicat Entry. Please Verify';
                                            $msg='<p style=color:red;font-family:gfont-family:Georgia, Times New Roman, Times, serif>'.$data.'</p>';//
                                            ?>
                                                    
 <script  src="dist/js/jquery.ui.draggable.js"></script>
<script src="dist/js/jquery.alerts.js"></script>
<script src="dist/js/jquery.js"></script>
<link rel="stylesheet"  href="dist/js/jquery.alerts.css" >
                                                  
                                            <script type="text/javascript">
	
					jAlert('<?php echo  $msg; ?>', 'POSNIC');
			
</script>
                                                        <?php
			}
			else
			{
				
			if($db->query("insert into stock_details(stock_id,stock_name,stock_quatity,supplier_id,company_price,selling_price,category) values('$stockid','$name',0,'$supplier',$cost,$sell,'$category')"))
			{ 
				$db->query("insert into stock_avail(name,quantity) values('$name',0)");
                                  $msg=" $name Stock Details Added" ;
				header("Location: add_stock.php?msg=$msg");
                        }else
			echo "<br><font color=red size=+1 >Problem in Adding !</font>" ;
			
			}
			
			
			}
							
							}
						
				if(isset($_GET['msg'])){
                                             $data=$_GET['msg'];
                                            $msg='<p style=color:#153450;font-family:gfont-family:Georgia, Times New Roman, Times, serif>'.$data.'</p>';//
                                            ?>
                                                    
 <script  src="dist/js/jquery.ui.draggable.js"></script>
<script src="dist/js/jquery.alerts.js"></script>
<script src="dist/js/jquery.js"></script>
<link rel="stylesheet"  href="dist/js/jquery.alerts.css" >
                                                  
                                            <script type="text/javascript">
	
					jAlert('<?php echo  $msg; ?>', 'POSNIC');
			
</script>
                                                        <?php
                                         }
				
				?>
				
				<form name="form1" method="post" id="form1" action="">
                  
                
                  <table class="form"  border="0" cellspacing="0" cellpadding="0">
                    <tr>
                          <?php
					  $max = $db->maxOfAll("id", "stock_details");
					  $max=$max+1;
					  $autoid="SD".$max."";
					  ?>
                      <td><span class="man">*</span>Stock ID:</td>
                      <td><input name="stockid" type="text" id="stockid" readonly maxlength="200"  class="round default-width-input" value="<?php echo $autoid; ?>" /></td>
                       
                      <td><span class="man">*</span>Name:</td>
                      <td><input name="name"placeholder="ENTER CATEGORY NAME" type="text" id="name" maxlength="200"  class="round default-width-input" value="<?php echo $name; ?>" /></td>
                       
                    </tr>
                    <tr>
                      <td><span class="man">*</span>Cost:</td>
                      <td><input name="cost" placeholder="ENTER COST PRICE" type="text" id="cost"  maxlength="200"  class="round default-width-input" onkeypress="return numbersonly(event)" value="<?php echo $cost; ?>" /></td>
                       
                      <td><span class="man">*</span>Sell:</td>
                      <td><input name="sell" placeholder="ENTER SELLING PRICE" type="text" id="sell" maxlength="200"  class="round default-width-input" onkeypress="return numbersonly(event)" value="<?php echo $sell; ?>" /></td>
                       
                    </tr>
                    <tr>
                      <td>Supplier:</td>
                      <td><input name="supplier" placeholder="ENTER SUPPLIER NAME" type="text" id="supplier"  maxlength="200"  class="round default-width-input" value="<?php echo $supplier; ?>" /></td>
                       
                      <td>Category:</td>
                      <td><input name="category" placeholder="ENTER CATEGORY NAME" type="text" id="category" maxlength="200"  class="round default-width-input" value="<?php echo $category; ?>" /></td>
                       
                    </tr>
                   
                    <tr>
                      <td> </td>
                      <td> </td>
                    </tr>
                    
                    
                    <tr>
                      <td> 
					 
					  </td>
                      <td>
                        <input  class="button round blue image-right ic-add text-upper" type="submit" name="Submit" value="Add">
						(Control + S)
					  
					  <td align="right"><input class="button round red   text-upper"  type="reset" name="Reset" value="Reset"> </td>
                    </tr>
                  </table>
                </form>  
						
				
					</div> <!-- end content-module-main -->
							
				
				</div> <!-- end content-module -->
				
				
		
		</div> <!-- end full-width -->
		  	
	</div> <!-- end content -->
	
	
	
	<!-- FOOTER -->
	<div id="footer">
        
		<p>Any Queries email to <a href="mailto:sridhar.posnic@gmail.com?subject=Stock%20Management%20System">sridhar.posnic@gmail.com</a>.</p>
	
	</div> <!-- end footer -->

</body>
</html>

now who can tell me what is wrong with the function filter_var() method on line 186 in ump.class.php?

 

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