exit() Doesn't work? - php

Question

I have this php script it's not inside a function
$num = mysql_num_rows($result);
if ($num == 0)
{
header("Location:index.php#captcha");//Location:#errorlogin.html");
$_POST[password]="";
exit;
}
It always seems to continue executing everything after this part regardless of $num being equal to 0 I have already tried exit("message"), die, return etc. Sorry if it's a noobish question haha

Answer 1

You're redirecting the page.
An example to notice from this page:
<?php
header("Location: http://www.example.com/"); /* Redirect browser */
/* Make sure that code below does not get executed when we redirect. */
exit;
?>

Answer 2

$_POST[password]="";
That should probably be (note the '):
$_POST['password'] = "";
The function exit() definitely stops execution when it is executed. There must be something wrong with your if condition.
In PHP multiple values "equal" to zero (if you use ==). Try var_dump($num) to see what's really in there.

Answer 3

exit would not working because it is has 2 dependency
A. if ($num == 0) if $num is not zero exit would not work
B. header("Location:index.php#captcha"); If your location works exit would not wort
try
$num = mysql_num_rows ( $result );
if ($num == 0) {
$_POST ['password'] = null;
header ( "Location: http://yoursite.com/index.php#captcha" ); // Location:#errorlogin.html");
exit();
}
else
{
echo "Found $num in the database";
}