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  1. I am using parent::__construct() in almost every classes to connect Mysql DB. Example class class secondClass extends dbconnect { public function __construct() { parent::__construct(); dbconnect class class dbconnect { private $mysqli_handler; public function __construct() { try { mysqli_report(MYSQLI_REPORT_STRICT); $this->mysqli_handler = mysqli_connect(DB_HOSTNAME, DB_USERNAME, DB_PASSWORD, DB_DBNAME); } catch (mysqli_sql_exception $e) { throw new Exception('Error: Could not make a database link using ' . DB_USERNAME . '@' . DB_HOSTNAME . '!'); } if ($this->mysqli_handler->connect_error) { trigger_error('Error: Could not make a database link (' . $this->mysqli_handler->connect_errno . ') ' . $this->mysqli_handler->connect_error); } $this->mysqli_handler->query("SET NAMES 'utf8'"); $this->mysqli_handler->query("SET CHARACTER SET utf8"); $this->mysqli_handler->query("SET CHARACTER_SET_CONNECTION=utf8"); $this->mysqli_handler->query("SET SQL_MODE = ''"); $this->mysqli_handler->query("SET time_zone = 'Asia/Kolkata'"); } Is this create multiple instance of mysql dbconnection? I am frequently getting mysql connection error on my shared hosting. If so how to avoid? I am using PHP Version 7.4.16, some detailed explanation will be useful for me as I am using like this for many projects. Thank you for your time. Prabakaran
  2. I had such a class : class NodeElement { no; x; y; tre; tdno; tdx; tdy; cbox; nodesArray; nodesTable; selected; constructor( x, y,nodesArray, nodesTable) { nodeCounter++; this.no = nodeCounter; this.x = x; this.y = y; this.nodesArray = nodesArray; this.nodesTable = nodesTable; //create elements this.tre = document.createElement("tr"); this.tre.id = "row"+this.no; this.tdno = document.createElement("td"); this.tdno.id = this.no; this.tdno.innerHTML = this.no; this.cbox = document.createElement("input"); this.cbox.type="checkbox"; this.cbox.id="cbox"+this.no; this.cbox.value=this.no; this.cbox.name="cbox"+this.no; this.cbox.setAttribute('onclick','select(this)'); this.tdx = document.createElement("td"); this.tdx.id="tdx"+this.no; this.tdx.innerHTML = this.x; this.tdy = document.createElement("td"); this.tdx.id="tdy"+this.no; this.tdy.innerHTML = this.y; } } I want to pass complete class object(i.e instantiated one) to a function select() as parameter when I click(i.e. checked the checkbox object of the class instance). My question is that line : this.cbox.setAttribute('onclick','select(this)'); I tried that too : this.cbox.setAttribute('onclick','select("'+this+'")'); but not worked. I could no achieve to pass neither checkbox nor the class object(NodeElement) to function select() as parameter. How can I do that?
  3. Good evening, Phreaks. Quick question. I have this method here -> public function get($table, $where = [], $column = "*") { return $this->action("SELECT {$column}", $table, $where); } It works great as long as the call to it includes the $where array. I want both $where and $column to be optional here and $where to be an array when it's included. if I only use the $table parameter (which is the only one I want to be required). I keep getting a Could one of you fine folks please explain to me about this error and why I need the $where parameter when I want it to be optional. Thank you
  4. Hi Freaks, I've been trying to put together subscribe functionality on a project. Been at it for hours and can't make any progress. The categories that a user is subbed to are stored in comma separated string in the database and pulled out into $_SESSION['user_subs'] I have these 2 methods here to start -> <?php private function userSubscribed($cat_id) { $category = $this->getCategoryByID($cat_id); if(in_array($category, $_SESSION['user_subs'])) { echo "user subscribed"; return true; } else { echo "user NOT subscribed"; return false; } } public function displaySubscribedButton($cat_id) { $subscribed = $this->userSubscribed($cat_id); if($subscribed) { $action_btn = "<td><a href='category_posts.php?cat_id=$cat_id' name='sub_btn' class='btn btn-secondary'>Unsubscribe</a>"; } else { $action_btn = "<td><a href='category_posts.php?cat_id=$cat_id' name='sub_btn' class='btn btn-danger text-color- primary'>Subscribe</a>"; } return $action_btn; } They've both been well tested and I know they're working correctly. Then I have this one (which is the problem child) -> <?php public function updateSubscriptionCategory($cat_id, $username) { $category = $this->getCategoryByID($cat_id); $subscribed = $this->userSubscribed($cat_id); print_r($_SESSION['user_subs']); if($subscribed){ unset($_SESSION['user_subs'][$category]); $subs = $_SESSION['user_subs']; $subscribed = false; } else { $new_sub = ",".$category; $subs = array_push($_SESSION['user_subs'], $new_sub); $subscribed = true; } $stmt = $this->conn->prepare("UPDATE ".User::$table." SET subs=? WHERE username=?"); if($stmt) { $stmt->execute([$subs, $username]); } else { echo "you fucked up"; } } I call it from the category file, here -> <?php require_once("assets/initializations.php"); $post_obj = new Post($conn, $username); $cat_obj = new Category($conn, $username); $cat_id = $_GET['cat_id']; if(isset($_POST['sub_btn'])) { $cat_obj->updateSubscriptionCategory($cat_id, $username); // header("Location: category_posts.php?cat_id=$cat_id&cat_title=$cat_title"); } but the page only reloads no changes are made not on the page nor in the db nor do I get any feedback, not from the 'print_r' or the else at the bottom. I feel like it's not even running this method. Was hoping that someone sees something that I've been missing. 8 hours in and I'm still not able to get it to work. TIA for all input
  5. Hi guys, I am trying to calculate hours a person works by calculating the values of text fields in a form. However, when I load the page I get "Class 'times_counter' not found. Here is the calculation code" if(isset($_POST['calculate']) != ""){ class times_counter { private $hou = 0; private $min = 0; private $sec = 0; private $totaltime = '00:00:00'; public function __construct($times){ if(is_array($times)){ $length = sizeof($times); for($x=0; $x <= $length; $x++){ $split = explode(":", @$times[$x]); $this->hou += @$split[0]; $this->min += @$split[1]; $this->sec += @$split[2]; } $seconds = $this->sec % 60; $minutes = $this->sec / 60; $minutes = (integer)$minutes; $minutes += $this->min; $hours = $minutes / 60; $minutes = $minutes % 60; $hours = (integer)$hours; $hours += $this->hou % 24; $this->totaltime = $hours.":".$minutes; } } public function get_total_time(){ return $this->totaltime; } } $times = array( $mondiff->format('%H:%I'), $tudiff->format('%H:%I'), $weddiff->format('%H:%I'), $thdiff->format('%H:%I'), $fridiff->format('%H:%I'), $satdiff->format('%H:%I'), $sundiff->format('%H:%I'), ); $counter = new times_counter($times); I had this on an old project, which I no longer have but it worked then. Any ideas?
  6. I'm suddenly having trouble using my connection to my MySQL database... (yes it was working but now...) I have the Connection created in an include file and stored in variable $DB, in the main file that includes the file containing the$DB there are other includes for classes. These classes are SUPPOSED to use $DB to connect to and SELECT/UPDATE/INSERT, but for a reason I cant figure out they suddenly stopped seeing $DB. it keeps saying its an undefined variable. If you need to see code I can post...
  7. Hello, My first question is; if there is a class, and i dont want this class to be instantiated anywhere? How can i do this? What are the ways/keywords for this? My second question is; Are there type of classes that can't be instantiated? What are the names of these classes? Thanks in advance.
  8. class foo { // was this always allowed? public $bar = 'abc default value'; // or did older versions only allow this? public $bar; } I couldn't determine the answer to this question looking at documentation. I found some old code where no class had a default value. Maybe it was a developer preference, but I was wondering if older PHP versions didn't even allow default values? Just a question of curiosity.
  9. Hi, I've inherited some code on a system from another person. I'll be the first to admit that I'm not a PHP pro, I am self taught, and use it sparingly for personal projects mainly. So this is a bit beyond my skill level, and I was hoping for some advice: The system is a glorified calendar, with a lot of our own data being slapped on top of it and presented nicely. The issue I have thoguh is that due to the way the calendar is generated, I cant make the height of the days move dynamically based on what content gets dropped into each day on the calendar. If one day is busy and has 8 events drop into it, they will overflow the days cell. I wanted to adjust the height of ALL cells on a month view calendar to the heighest required height of all cells in that view. What I was going to do, is +1 to a coutner for every event (or block) that is generated for each day (days are looped through a private function), and commit that number to an array. At the end fo the loop (after all days ahve been counted and have a value in the array), I was going to use max() on the array, pull the largest number, calculate the days cell hiehgt from that and apply it via CSS at page level. I've summarised the code in effect here (psuedo code, not real PHP): class Calendar { public $heights; private fucntion dayLoop($cellNumber) { $heights = []; //array $block_count = 0; //counter while(mysqlrowdata) { [code for mysql operations] $block_count++; //increment the count } $day_height = ($block_count * 16) + 18; //do some math specific to my application $this->heights[] = $day_height; //commit calc'd value to array //array_push($heights, $day_height); //this was a previosu attempt, i dont think i should use array_push here..?? } } That function, and others is called from the front end pages to generate the calendar. If I do a: var_dump($heights); after it on that page, all I get returned on screen is "Array ( )" I tried changing the private function to a public one, but this did not affect the outcome. Anyone have any ideas on what I'm doing wrong? Is my logic sound? Can I commit values to an array inside a loop in a public OR private function and then reference that array outside of the loop? I defined $heights as public in the class too, but that didnt change the outcome either. Thanks.
  10. I've got a bit of jQuery that is getting the bit of data that I want to search the page for. This is posted below. $(".pagelink").click(function(){ var myClass = this.className; var number = myClass.substr(myClass.length - 1); }); This bit is working ok. It gets the last bit of the element's class name which is a number incremented by the PHP that echoes it out. Now I want to search the page for a div that has a class that contains that var number. There will be a div somewhere on the page with a class that contains that number. It will be called either row0, row1, row2, row3 etc etc. The div is not a descendant element of the pagelink class, it is somewhere else so I don't think the find() variable is suitable. Any help will be greatly appreciated, thanks!
  11. I have two questions relating to each other which are regarding - both function __autoload and adding products to a class? Code for an autoload function (please see code #1), the output prints - but also gives an error message? Moreover, I also receive the notification in my php editor "class 'ooo' not found"? If I may ask a silly question I have noticed some autoload fucctions have implode and explode - how would I write one of these? The output and error: My Antonia: Willa Cather (5.99) Fatal error: Class 'ooo' not found in C:\ Code#1: <?php // we've writen this code where we need function __autoload($classname) { $filename = "./". $classname .".php"; include_once($filename); } // we've called a class *** $obj = new ooo(); ?> ------------------------------------------------------------------------------------------------------------------------------ How would I add more products to this product class? code#2: <?php class shopProduct { public $title; protected $producer = []; public $price; public function __construct($title, $producerName1, $producerName2, $price) { $this->title = $title; $this->producer[] = $producerName1; $this->producer[] = $producerName2; $this->price = $price; } public function getProducer() { return implode(' ', $this->producer); } } class ShopProductWriter { public function write ($shopProduct) { $str = "{$shopProduct ->title}: " . $shopProduct -> getProducer() . " ({$shopProduct -> price})\n"; print $str; } } $product1 = new ShopProduct("My Antonia", "Willa", "Cather", 5.99); $writer = new ShopProductWriter(); $writer -> write($product1); ?>
  12. I have to write small segment of PHP code to print the word(s) 'Hello, World!' in uppercase letters, I have thus far wrote a small section of code that prints the output 'Hello, World!'. But, I'm completely stuck on how to make the letters all uppercase?!?? Moreover; that strtoupper goes somewhere in there right? <?php class TextFunctions { public static $string = 'Hello, World!'; static public function strtoupper() { } } echo TextFunctions::$string; ?>
  13. I have been using the below method to access my database for some time now and just wanted to make sure im doing the correct thing. My application runs perfectly but im just trying to improve my programming skills. The classes are all loaded in with an autoloader so in theory using the classes below I could just call: echo User::getUsername(1); Like I say it works fine I would just love some feedback about what other people do and suggestions on something that might run better or looks cleaner. class Db { private static $db_read; private static $db_write; public static method read(){ if( self::$db_read == null ){ //create new database connection is it doesnt exist self::$db_read = new PDO(); } return self::$db_read; } public static method write() { if( self::$db_write == null ){ //create new database connection is it doesnt exist self::$db_write = new PDO(); } return self::$db_write; } class User { public static function getUsername($user_id){ $d = Db::read()->prepare('select * from user where id = ? '); $d->execute( array($user_id) ); $user = $d->fetch(); return $user['username']; } }
  14. Please see attached my bank account class files. The key guidance I need is how to instantiate a class from another class. For example, you can see in Customer.class.php, I instantiate a new Account, but am not sure how i pass in the balance and account number to Customer in order that they can instantiate the Account? This is the same as Account instantiate a BankCard object. I am a little confused - any help appreciated. BankAccountApp.zip
  15. This code works without problems: <?php namespace NamespaceA; class A extends \NamespaceB\B {} namespace NamespaceB; class B {} But why the following code cause Fatal error: Class 'NamespaceB\B' not found in ...file? <?php namespace NamespaceA; class A extends \NamespaceB\B {} namespace NamespaceB; class B extends \NamespaceC\C {} namespace NamespaceC; class C {} And this code also works without problems: <?php namespace NamespaceA; class A extends \NamespaceB\B {} namespace NamespaceC; class C {} namespace NamespaceB; class B extends \NamespaceC\C {} Without any namespace, also Fatal error: Class 'B' not found in ...file: <?php class A extends B {} class B extends C {} class C {} Works without problems: <?php class A extends B {} class B {} And yes everything is in the same PHP file....
  16. Hello, I'm starting using class and have a question for you guys : Let's consider a class "customer". I want to code a search tool. Where should I put my search function ? Within the customer class ? In another "search" class ? Other solution ? Thanks for help !
  17. All my code is returning is the username... Please help. index.php <?php include('user.class'); $user = new user("Jbonnett", "0", "Admin", "Jamie", "Bonnett", "jbonnett@site.co.uk", "01/09/1992"); echo "username: " . $user->getUsername() . "<br/>"; echo "id: " . $user->getId() . "<br/>"; echo "level: " . $user->getLevel() . "<br/>"; echo "Forename: " . $user->getForename() . "<br/>"; echo "Surname: " . $user->getSurname() . "<br/>"; echo "Email: " . $user->getEmail() . "<br/>"; echo "Dob: " . $user->getDob() . "<br/>"; ?> user.class <?php class user { private $username; private $id; private $level; private $forename; private $surname; private $email; private $dob; public function user($username, $id, $level, $forname, $surname, $email, $dob) { $this->setUsername($username); $this->setId($id); $this->setLevel($level); $this->setForename($forename); $this->setSurname($surname); $this->setEmail($email); $this->setDob($dob); } public function destroy() { unset($this->username); unset($this->id); unset($this->level); unset($this->forename); unset($this->surname); unset($this->uemail); unset($this->dob); } public function setUsername($username) { $this->username = $username; } public function getUsername() { return $this->username; } public function setId($id) { $this->id = $id; } public function getId() { return $this->$id; } public function setLevel($level) { $this->level = $level; } public function getLevel() { return $this->level; } public function setForename($forename) { $this->foreName = $forename; } public function getForename() { return $this->forename; } public function setSurname($surname) { $this->surName = $surname; } public function getSurname() { return $this->surname; } public function setEmail($email) { $this->email = $email; } public function getEmail() { return $this->email; } public function setDob($dob) { $this->dob = $dob; } public function getDob() { return $this->dob; } }; ?>
  18. I want to create a singleton class that read multidimensional array from txt file and flatten the array retrieved. This is what I have tried so far: class singleton { protected static $instance = null; public static function getInstance() { if (!isset(static::$instance)) { static::$instance = new static; } return static::$instance; } public static function flattenArray($array) { $return = array(); $iterator = new RecursiveIteratorIterator(new RecursiveArrayIterator($array)); foreach ($iterator as $value) { $return[] = $value; } return $return; } public static function loadFile($path) { $file_handle = fopen($path, "r"); while (!feof($file_handle)) { $line = fgets($file_handle); $rawarray[] = $line; } $flattedarray = self::flattenArray($rawarray); fclose($file_handle); return $flattedarray; } With the txt file containing: array('a', 'b', array(array('c'), 'd'), 'e', array('f'), 'g') I run the class with: include 'singleton.php'; $singleton = singleton::getInstance(); $flattedarray = $singleton->loadFile("file.txt"); echo '<pre>'; print_r($flattedarray); echo'</pre>'; I get as a result: Array ( [0] => array('a', 'b', array(array('c'), 'd'), 'e', array('f'), 'g') ) Which is the same array found in the txt file. how can i do it without using eval. What am I doing wrong ?
  19. I am trying to put an rss feed from my Flickr account into my website I have got thus far with my class:- <?php // Flickr Class class flickr { // Properties var $feed; //=================== // Construct Flickr function __construct($feed) { $this->feed = $feed; } //=================== // Parse Method function parse() { $rss = simplexml_load_file($this->feed); $photodisp = array(); foreach ($rss->channel->item as $item) { $link = (string) $item->link; // Link to this photo $title = (string) $item->title; // Title of this photo $media = $item->children('http://search.yahoo.com/mrss/'); $thumb = $media->thumbnail->attributes(); $url = (string) $thumb['url']; // URL of the thumbnail $width = (string) $thumb['width']; // Width of the thumbnail $height = (string) $thumb['height']; // Height of the thumbnail $photodisp[] = <<<________________EOD {$title} ________________EOD; } return $photodisp; } //=================== // Display Method function display($numrows=6,$head="Photos on Flickr") { $photodisp = $this->parse(); $i = 0; $thumbs = <<<____________EOD $head ____________EOD; while ( $i < $numrows ) { $thumbs .= $photodisp[$i]; $i++; } $trim = str_replace('http://api.flickr.com/services/feeds/photos_public.gne?id=', '',$this->feed); $user = str_replace('〈=en-us&format=rss_200','',$trim); $thumbs .= <<<____________EOD View All Photos on Flickr ____________EOD; return $thumbs; } //=================== } //End of Class ?> // <- Line 66 and it gives me "Parse error: syntax error, unexpected end of file in C:\wamp\www\image-a-nation\test4_class.php on line 66". I thought it might be an unclosed brace/bracket or something like that, but no amount of checking finds anything - would appreciate a fresh pair of eyes...
  20. My error happens on line #81 My error: Parse error: syntax error, unexpected 'class' (T_CLASS), expecting function (T_FUNCTION) in w06c02cxx.php on line 81 Troubleshooting notes: I've been reviewing this exercise throughout the weekend trying to find my error. I've used my code editors syntax highlighting tools (BBedit 10), but still the error persists. I learned about the 20/20/20 rule during this process and have practiced that while attempting to debug the code. I've scoured the web trying to find examples to help me, but i'm a new and nothing i've thus found has helped me to resolve my error, hoping someone here can help. I think the error is happening in my survey class, somewhere before line #81 Link to error: http://zephir.seattlecentral.edu/~jstein11/itc250/z14/surveys/w06c02cxx.php require '../inc_0700/config_inc.php'; #provides configuration, pathing, error handling, db credentials $config->titleTag = smartTitle(); #Fills <title> tag. If left empty will fallback to $config->titleTag in config_inc.php $config->metaDescription = smartTitle() . ' - ' . $config->metaDescription; //END CONFIG AREA ---------------------------------------------------------- get_header(); #defaults to header_inc.php $mySurvey = new Survey(1);//all our code happens in here if ($mySurvey->isValid){ echo ' The title of the surevis is ' . $mySurvey->Title . ' <br />'; echo ' The title of the surevis is ' . $mySurvey->Description . ' <br />'; }else{echo ' No such survey exists';} dumpDie($mySurvey); //like var_dump inside/available this app because of common file get_footer(); #defaults to footer_inc.php class Survey{//class creates one object at a time, creates as many as you want //create properties public $SurveyID = 0; public $Title = ''; public $Description = ''; public $isValid = FALSE; public $Questions = array();// how we add an array of questions to a survey function __construct($id){ $id = (int)$id; //cast to an integer - stops most sequal injection in this case if($id == 0){ return false; //don't bother asking database, there is no frog, don't ask - no data no dice } $sql = "select Title, Description, SurveyID from sp14_surveys where SurveyID = $id"; $result = mysqli_query(IDB::conn(),$sql) or die(trigger_error(mysqli_error(IDB::conn()), E_USER_ERROR)); //echo '<div align="center"><h4>SQL STATEMENT: <font color="red">' . $sql . '</font></h4></div>'; if(mysqli_num_rows($result) > 0) {#there are records - present data while($row = mysqli_fetch_assoc($result)) {# pull data from associative array $this->SurveyID = (INT)$row['SurveyID']; $this->Title = $row['Title']; $this->Description = $row['Description']; } $this->isValid = TRUE; } @mysqli_free_result($result);//at symbol surpresses multiple copies of an error silences a line basically $sql = "select * from sp14_questions where Survey14 = $id"; $result = mysqli_query(IDB::conn(),$sql) or die(trigger_error(mysqli_error(IDB::conn()), E_USER_ERROR)); if(mysqli_num_rows($result) > 0) {#there are records - present data while($row = mysqli_fetch_assoc($result)) {# pull data from associative array $this->Questions[] = new Question((INT)$row['QuestionID'],$row['Question'],$row['Description']); } }//end of constructor }//end of survey class //BEGIN new question object class Question{ public $QuestionID = 0; public $Text = ''; public $Description = ''; function __construct($QuestionID, $Question, $Description){ $this->QuestionID = $QuestionID; $this->Question = $Question;// field is named Question $this->Description = $Description;// the context info about the question asked }//END question Constructor }// END question Class } w06c02cxx.php
  21. So I have this CMS that I have spent the last 5 years building and rebuilding and updating blah blah. It's a fairly extensive piece work and I am now looking at converting the entire system over to OOP. I am fairly new to OOP but understand the easy basics of it. I do fight with the concept of when to make a class and when to just make a normal function. I have many functions that I built specific to how my system works and some I suppose could be grouped into categories but then many others are just plain functions that only serve one purpose and may only be a few lines long. I will be using the spl_autoload_register() to load the classes as needed which is obviously much easier than including all the function pages that are needed. So for that reason I like the idea of making classes for everything but it just seems like more than is needed. So what I am looking for is some insight as to when and how to decide if a class should be made and whether to group functions by category to limit the amount of classes OR to just leave them as normal functions. Here is a example function for creating a thumbnail. I would guess that I could make a class called Thumb and put this in it, but what exactly would be the benefit of that based on the syntax of the function AND could you show me how you would convert this to OOP to make it worth while putting it in a class? // Creates a thumbnail function createThumb($img, $type, $dest = NULL, $xy = NULL) { if($type=="admin_product") { $thumb_width = $GLOBALS['admin_thumb_width']; $thumb_height = $GLOBALS['admin_thumb_height']; } elseif($type=="custom") { $thumb_width = ($dest !== NULL) ? $xy['x'] : (int)$_GET['width']; $thumb_height = ($dest !== NULL) ? $xy['y'] : (int)$_GET['height']; } $src_size = getimagesize($img); if($src_size['mime'] === 'image/jpg') {$src = imagecreatefromjpeg($img);} elseif($src_size['mime'] === 'image/jpeg') {$src = imagecreatefromjpeg($img);} elseif($src_size['mime'] === 'image/pjpeg') {$src = imagecreatefromjpeg($img);} elseif($src_size['mime'] === 'image/png') {$src = imagecreatefrompng($img);} elseif($src_size['mime'] === 'image/gif') {$src = imagecreatefromgif($img);} $src_aspect = round(($src_size[0] / $src_size[1]), 1); $thumb_aspect = round(($thumb_width / $thumb_height), 1); if($src_aspect < $thumb_aspect)//Higher { $new_size = array($thumb_width, ($thumb_width / $src_size[0]) * $src_size[1]); $src_pos = array(0, (($new_size[1] - $thumb_height) * ($src_size[1] / $new_size[1])) / 2); } elseif($src_aspect > $thumb_aspect)//Wider { $new_size = array(($thumb_height / $src_size[1]) * $src_size[0], $thumb_height); $src_pos = array((($new_size[0] - $thumb_width) * ($src_size[0] / $new_size[0])) / 2, 0); } else//Same Shape { $new_size = array($thumb_width, $thumb_height); $src_pos = array(0, 0); } if($new_size[0] < 1){$new_size[0] = 1;} if($new_size[1] < 1){$new_size[1] = 1;} $thumb = imagecreatetruecolor($new_size[0], $new_size[1]); imagealphablending($thumb, false); imagesavealpha($thumb, true); imagecopyresampled($thumb, $src, 0, 0, 0, 0, $new_size[0], $new_size[1], $src_size[0], $src_size[1]); //$src_pos[0], $src_pos[1] 3rd and 4th of zeros position on above line if($src_size['mime'] === 'image/jpg') { if($dest !== NULL) { imagejpeg($thumb, $dest, 95); } else { header('Content-Type: image/jpeg'); imagejpeg($thumb, NULL, 95); } } elseif($src_size['mime'] === 'image/jpeg') { if($dest !== NULL) { imagejpeg($thumb, $dest, 95); } else { header('Content-Type: image/jpeg'); imagejpeg($thumb, NULL, 95); } } elseif($src_size['mime'] === 'image/pjpeg') { if($dest !== NULL) { imagejpeg($thumb, $dest, 95); } else { header('Content-Type: image/jpeg'); imagejpeg($thumb, NULL, 95); } } elseif($src_size['mime'] === 'image/png') { if($dest !== NULL) { imagepng($thumb, $dest); } else { header('Content-Type: image/png'); imagepng($thumb); } } elseif($src_size['mime'] === 'image/gif') { if($dest !== NULL) { imagegif($thumb, $dest); } else { header('Content-Type: image/gif'); imagegif($thumb); } } imagedestroy($src); } Your insight is appreciated.
  22. HitCounter.php CountVisits2.php I'm struggling with this assignment, I'm not sure what I'm doing wrong! If somebody could please point out what my errors are that would be great. I attached the two files I'm using above; below are the directions for the assignment: this is the error I get "[03-Apr-2014 21:10:56 America/Denver] PHP Fatal error: Call to undefined function my_sql_fetch_row() in /project5/HitCounter.php on line 78" "For this project, you will create a HitCounter class that counts the number of hits to a Web page and stores the results in a MySQL database. Use a private data member to store the number of hits and include public set and get member functions to access the private counter member variable. Note, you must develop 2 php files for this project. The first is a class called HitCounter.php and the second is a file called CountVisits.php. The CountVisits file will be the one used by the user and it will instantiate an instance of the HitCounter class. The HitCounter class takes care of opening the database file and table and obtaining the current number of hits, placing that number in a private variable. That private variable is accessible in the object by calling the "get" function. Before terminating, the CountVisits program has to set the new value using the "set" function (in the class definition, the "set" function should increment the current counter by one and update the database). Note that part of the constructor function in HitCounter.php should be to check to see if your table exists and then create it, if it does not, and initialize the table with values."
  23. does anyone know a class that can generate a menu with category and subcategory that connects to mysql with pdo ? thank you
  24. so i found a pdo class to connect to mysql with pdo and looks easy to customize however i have an error that i can't figure it out class <?php class ApplicationResourcePool { static var $_dbHandle; // line 5 private static $_dbConfig = array( 'dsn' => 'mysql:dbname=vax', 'username' => 'vax', 'password' => 'veryrandpasswd', ); public static getDbHandle(){ if(self::$_dbHandle == null){ self::$_dbHandle = new PDO( self::$_dbConfig['dsn'] , self::$_dbConfig['username'], self::$_dbConfig['password'] ); } return self::$_dbHandle; } } class StockMapper { protected $_dbh; public __construct($dbh = null) { if($dbh == null){ $this->_dbh = ApplicationResourcePool::getDbHandle(); } else { $this->_dbh = $dbh; } } public getStockById($stockId){ $sth=$this->_dbh->prepare("SELECT * from stock WHERE id = :stockId"); $sth->bindParam(":stockId", $stockId); $sth->execute(); $result = $sth->fetch(PDO::FETCH_ASSOC); return $result[0]; } } $stockMapper = new StockMapper(); $stockData = $stockMapper->getStockById('302'); ?> Parse error: syntax error, unexpected 'var' (T_VAR), expecting variable (T_VARIABLE) in /path/index.php on line 5 i really don't know what to do
  25. I know how to dynamically create class properties like this: class Sample { /* Creates instances of classes and dynamically assigns them to properties * Example: If "test.php" is in the Classes folder, an instance of its class ... * ... will be assigned to $this->test. */ public function createInstances() { foreach(glob("Classes/*.php") as $file) { require_once $file; $fileName = basename($file, ".php"); if(class_exists($fileName)) { $lclass = strtolower($fileName); $this->{$lclass} = new $fileName(); } } } } $obj = new Sample(); $obj->createInstances(); And I'm using this in my project. But there's something I want to make using the same sort of principle - I want to dynamically create properties from all of the arguments passed to the constructor. The thing is that I don't know how many arguments will be passed. I think you can use `for` loops for this kind of thing, but I'm not sure how I would go about doing that.
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