Simple polymer custom elements import using PHP

polymer-import.php

<?php
$list = ['custom_elements_folder1', 'custom_elements_folder2'];
$num = 0;
for($num; $num < count($list); $num++){
	$dir = glob($list[$num] . '/*');
  	foreach ($dir as $file) {
    	if(is_file($file) && strpos($file, '.html')){
      		echo "<link rel=\"import\" href=\"" . $file . "\">\n";
    	} else{
      		echo $file[0];
    	}
  	}
}
?>