Any ideas for function?

[DarkWater]

The topic HTTP ROOT prompted me to make a function to break up the document root and remove the final directory.  I decided to make a function that returns an array with the position of each occurrence of a character in a string, so you can use it in a substr() or whatever.

Here it is:

<?php
function array_charpos($haystack, $needle) {

if (strlen($needle) > 1 || strlen($needle) < 1) {
	return false;
}

$look_in = str_split($haystack);
        foreach ($look_in as $k=>$v) {

           	if ($v == $needle) {
            		$found_at[] = $k;

             	}
}
if (is_array($found_at)) {
          	return $found_at;
}
else {
	return false;
}
}

//Usage: array array_strpos (string $haystack, string $needle)
$oldenv = '/var/www/vhosts/mysite.com/httpdocs';
$slash_pos = array_charpos($oldenv, "/");
print_r ($slash_pos);
$newenv = substr($oldenv, 0, $slash_pos['2']);
echo $newenv; //outputs 'var/www';
?>

 

Can anyone think of something I should add?

[sasa]

try

<?php
function remove_final($url){
$u = explode('/', $url);
$c = count($u) - 1;
if ($u[$c] == ''){
	unset($u[$c]);
	$c--;
}
unset($u[$c]);
return implode('/', $u);
}
echo remove_final('c:/a/b/c/d/');
?>

[DarkWater]

try

<?php
function remove_final($url){
$u = explode('/', $url);
$c = count($u) - 1;
if ($u[$c] == ''){
	unset($u[$c]);
	$c--;
}
unset($u[$c]);
return implode('/', $u);
}
echo remove_final('c:/a/b/c/d/');
?>

Oh, I already did the document root function without a problem.  I just felt the need to make a function that returns the position that  the char is at, because there isn't really one that returns ALL of the positions.

[sasa]

are you lookig for strrpos() function