Running this function on a directory ensures that the directory doesn’t exist. If the directory doesn’t exist it is created. Will work recursively as well so if neither the directory specified or it’s parent exists, both are created.

By : metcarob

function Ensure_Sub_Directory_Exists($dir) {
//When passed a directory create it
if (substr($dir,-1) == "\\") $dir = substr($dir,0,strlen($dir)-1);

if (file_exists($dir)) return TRUE;

$a = explode("\\",$dir);
while ($t = each($a)) {
$b = $t['value'];
};
$b = str_replace("\\" . $b,"",$dir);

//does $b exist?
if (!file_exists($b)) {
Ensure_Sub_Directory_Exists($b);
};
//PArent exists so make this directork exist
mkdir($dir);
return TRUE;
};

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