php checking if the last character is a '/' if not then tack it on

Question

I have these 2 snippets of code that I have been playing with, but can't seem to get the logic to stick in either of them.

I am trying to see if a given string has a '/' at the end, if not then add it.

$path = '.';

if (substr($path, 0, -1) != '/')     $path .= '/'; 

and

if (strrpos('/', $path) !== true)     $path .= '/'; 

the issue im having is that if i make $path equal to './ then I get this as the output .//

this is the snippet of where i am having the issue

if (!is_array($paths))     $this->classPath[] = $paths; else     $this->classPath = $paths;  foreach ($this->classPath as $path) {      if (strrpos('/', $path) !== true)// || substr_count($path, '/') >= 0)         $path = $path . '/';     //else         //$this->classPath[] = $path;         //echo '0';     $pathArr[] = $path; 

Answer 1

You might be overthinking it. While the substr() method will work perfectly it might be simpler to use rtrim() to remove any trailing slashes and then add one on.

$path = rtrim($path, '/') . '/'; 

Caution: this will trim multiple trailing forward slashes. so .////// becomes ./

Answer 2

My solution: simple and even converts back slashes, useful for windows developers:

function fixpath($p) {     $p=str_replace('\\','/',trim($p));     return (substr($p,-1)!='/') ? $p.='/' : $p; }