ExecutableFinder

ExecutableFinder.php

<?php

public function find($name, $default = null, array $extraDirs = array())
{
    if (ini_get('open_basedir')) {
        // ...
    } else {
        $dirs = array_merge(
            explode(PATH_SEPARATOR, getenv('PATH') ?: getenv('Path')),
            $extraDirs
        );
    }

        $suffixes = array('');
    // ...
    foreach ($suffixes as $suffix) {
        foreach ($dirs as $dir) {
            if (is_file($file = $dir.DIRECTORY_SEPARATOR.$name.$suffix) && (defined('PHP_WINDOWS_VERSION_BUILD') || is_executable($file))) {
                return $file;
            }
        }
    }

    return $default;
}