PHP Incompatibility?

[webdes03]

I have the following code, which works on one server running PHP 4.3.3, but doesn't work on another, running 4.3.2. I can't seem to figure out what the problem with the variable is. The "foreach" loop around line 13 is to count the number of items in the array ($total).

Error on 4.3.2 is triggered as an undefined variable "total" on line 13:

$total = $total + 1;

Full code below...

<?php 
	$the_array = Array();
	$handle = opendir($dir); 

while (false !== ($file = readdir($handle))) { 
    if ($file != "." && $file != ".." && $file != "index.php" && $file != ".htaccess") {   /* as descripted below: these "files" will not be added to the array */
        $the_array[] = $file; 
    } 
}
closedir($handle);

foreach($the_array as $key => $value){
	$total = $total + 1;
}

$total = $total - 1;

$next = $element + 1;
	if($next > $total){$next = 0;}
$prev = $element - 1;
	if($prev < 0){$prev = $total;}
?>

[jebster]

It's because you haven't defined the variable "$total" yet. Same for "$element" on lines 18 & 20.

I would suggest replacing:

    foreach($the_array as $key => $value){ 
        $total = $total + 1; 
    } 

$total = $total - 1;

with:

$total = count($the_array);

HTH 🙂