print list of dynamic js file using php function - php

Question

I have this code for printing js files using php function in my index page:
<? PHP
function admin_js($js, $file = '') {
global $_admin_js;
if ($file != '') {
$file = preg_replace('/\\\/', '/', dirname($file));
}
$_admin_js[] = array(
$js,
$file
);
}
$_admin_js = array();
global $_admin_js;
$value = '';
foreach($_admin_js as $js) {
$relative_path = RELATIVE_PATH;
echo '<script src="' . $relative_path . '/' . preg_replace('/\\\/', '/', $js[0]) . '"></script>' . " \n\t";
}
global $_admin_js;
admin_js('admin/templates/js/jquery-1.10.1.min.js');
admin_js('admin/templates/js/bootstrap.min.js');
?>
But in action php output is empty. whats my problem ? how do print ?!
DEMO HERE

Answer 1

Your code sequence is wrong.
<? PHP
function admin_js($js, $file = '')
{
global $_admin_js;
if ($file != '')
{
$file = preg_replace('/\\\/', '/', dirname($file));
}
$_admin_js[] = array( $js, $file);
}
/* here should be the code of declaration */
$_admin_js = array();
global $_admin_js;
$value = '';
// Call this first to populate the array of $_admin_js
admin_js('admin/templates/js/jquery-1.10.1.min.js');
admin_js('admin/templates/js/bootstrap.min.js');
//Now you get the filled up array...
foreach($_admin_js as $js)
{
$relative_path = RELATIVE_PATH;
echo '<script src="' . $relative_path . '/' . preg_replace('/\\\/', '/', $js[0]) . '"></script>' . " \n\t";
}