How to solve and simplify my form validation

[bugzy]

Hello!

 

I have this approach on form validation(I'm just a newbie)

 

 

<?php


if(isset($_POST['submit']))
{


	$proj_name = me_mysql_prep(trim($_POST['proj_name']));
	$proj_content = me_mysql_prep($_POST['proj_content']);



	if(empty($_POST['proj_name']))
	{
		$empty_name = array('Project Name Cannot Be Empty');
	}

	if(empty($_POST['proj_content']))
	{
		$empty_content = array('Content Cannot Be Empty');
	}




	if(isset($empty_name) || isset($empty_content));
	{
		$error_merge = array_merge($empty_name, $empty_content);
	}





	if(!empty($error_merge))
			  {
				  foreach($error_merge as $error)
				  {
					  echo "<span class=\"error_validation\">*". $error . "<br></span>";
				  }
			  }
			  else
			  {

						$query = "INSERT into rec_projects (proj_name, content, date_reg) VALUES('{$proj_name}', '{$proj_content}', 		 '{$datenow}')";

						$result = mysql_query($query,$connection);

			  }
			  
			  echo "<br><br>";

}	


?>

 

 

 

My problem is at this line

 

<?php

	if(isset($empty_name) || isset($empty_content));
	{
		$error_merge = array_merge($empty_name, $empty_content);
	}
?>

 

 

because if, let's say $empty_name is not set, I'm going to have an error like

 

"undefined $empty_name"

or something like that.

 

 

I wonder if there's a PHP function that disregard a value in an array if it's not set.. or you guys have different approach to solve and simplify this??

 

[sunfighter]

To solve the empty string problem place this in start of if statement:

if(isset($_POST['submit']))
{
$empty_name = "";
$empty_content = "";

[shiza]

check the form validation script and modify it according to your own requirement

link:

http://www.echoecho.com/jsforms02.htm

[bugzy]

To solve the empty string problem place this in start of if statement:

if(isset($_POST['submit']))
{
$empty_name = "";
$empty_content = "";

 

 

I know this already but what I want is something more robust like what my code from above. I can fix it but the code will be long so I'm asking if there's a way to solve it and simplify the code so it won't be that long...