Form Validation

[artisticre]

I found some code here for validation. It only has one field to validate in this example. What if I wanted to add more text fields and a check list. Anyone have ideas?

<?php
if(isset($POST[test]))
{
if($POST[text] == "")
{
echo("Please fill in the field text");
}
else
{
echo("Form filled in correctly");
}
}
?>
<form name="test" action="<?PHP echo $PHP_SELF;?>" method="post">
<input type="text" name="text">
<input type="submit" name="test" value="test">
</form>

[paulnaj]

Basically, for each form element you have, there will be a corresponding $_POST variable.

<?php 
if(isset($_POST[test])){ 
    if($_POST[text] == ""){ 
        echo("Please fill in the field text"); 
    } else if($_POST[text2] == ""){
        echo("Please fill in the field text2"); 
    } else {
        echo("Form filled in correctly"); 
    }
} 
?> 
<form name="test" action="<?PHP echo $PHP_SELF;?>" method="post"> 
<input type="text" name="text"> 
<input type="text" name="text2"> 
<input type="submit" name="test" value="test"> 
</form>

[artisticre]

Is there a way to make all the errors come up at once so when the user clicks submit, they show all at once instead of as the form is being filled?

[LordShryku]

Set a blank string, and keep populating it

<?
if(isset($_POST[test])){  

    $errors = "The following errors have occured: ";
    $isErrs = 0;
    if($_POST[text] == "") {  

        $errors .= "<li>Required field 'text' was left blank";
        $isErrs = 1;  

    } 
    if($_POST[text2] == "") { 
        $errors .= "<li>Required field 'text2' was left blank";
        $isErrs = 1;  

    } 
    if($isErrs == 1) {
        die($errors);
    }
    else {
        // continue...
    }
}
?>