Bengali To English Date Convert PHP

<?PHP
    $banglaDate = '০১:৫১, জুন ০৬, ২০১৬';

    $search_array= array("১", "২", "৩", "৪", "৫", "৬", "৭", "৮", "৯", "০", "জানুয়ারি", "ফেব্রুয়ারি", "মার্চ", "এপ্রিল", "মে", "জুন", "জুলাই", "আগস্ট ", "সেপ্টেম্বর", "অক্টোবর", "নভেম্বর", "ডিসেম্বর", ":", ",");

    $replace_array= array("1", "2", "3", "4", "5", "6", "7", "8", "9", "0", "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December", ":", ","); 

    // convert all bangle char to English char 
    $en_number = str_replace($search_array, $replace_array, $banglaDate);   

    // remove unwanted char       
    $end_date =  preg_replace('/[^A-Za-z0-9:\-]/', ' ', $en_number);

    // convert date
     $bangla_date = date("Y-m-d H:i ", strtotime($end_date));
	 echo $bangla_date;

   // output : 2014-12-31 10:57
?>