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Editorial Team
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Asked: 2026-06-15T17:07:43+00:00

A php die function question. when I use die(), it clean all page elements.

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A php die function question.
when I use die(), it clean all page elements.
Is any way to echo error message and not clean all page, It looks like jump to another page when I use die() to stop code and call out the message.

Here are my code

    <?PHP
$message="";
if(isset($_POST['submit'])){

    $name=$_POST['name'];
    $password=$_POST['password'];

    //Field check
    if($name && $password){$message=$name . $password;}
    else{die($message="please enter name and password");}

    //Check name    
    if($name=="alex" && $password==123){$message="Welcome ". $name;}    
    else{$message="wrong user or password";}
    }
?>

<html>
<p>SIGN UP</p>
    <form action="testing.php" method="POST">
            <input type="text" name="name" placeholder="Enter Name" />
            <input type="password" name="password" placeholder="Enter Password"/>
            <input type="submit" name="submit" value="Sign up"/>
    </form>
    <div><?PHP echo $message?></div>
</html>
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1 Answer

  1. Editorial Team

    You should read your script for top to bottom, including anything outside of <?php ?>. When using die() your script stops then and there.

    <?php $a = "something"; ?>
<html>
  <p><?php echo $a?></p>
  <?php die(); ?>
  <p>Never here</p>
</html>

    Would output

    <html>
  <p>something</p>

    In your case do

    <?php
if(isset($_POST['submit'])){

    $name=$_POST['name'];
    $password=$_POST['password'];

    //Field check
    if(!$name || !$password) {
       $message="please enter name and password");

    //Check name and password    
    } elseif ($name=="alex" && $password=="alex1") {
       $message="Welcome ". $name;

    } else {
       $message="Username or password incorrect"
    }
?>
<html>
<p>SIGN UP</p>
    <form action="testing.php" method="POST">
            <input type="text" name="name" placeholder="Enter Name" />
            <input type="password" name="password" placeholder="Enter Password"/>
            <input type="submit" name="submit" value="Sign up"/>
    </form>
    <div><?php echo $message?></div>
</html>

    Also note that I’m using ‘==’ to compare, not ‘=’.

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