diff --git a/abjad.php b/abjad.php
index fa8688b..cfbd213 100644
--- a/abjad.php
+++ b/abjad.php
@@ -8,6 +8,7 @@
 function abjad($word)
 {
         $word = trim($word);
+        $word = convert_non_persian_chars_to_persian($word);
         $word = str_replace(array('َ','ُ','ِ','ّ','ً','ٌ','ٍ','ـ','ْ'), '', $word);
         $word = str_replace(array('گ','چ','پ','ژ','ة','آ'),array('ک','ج','ب','ز','ه','ا'),$word);
         $word = str_replace(array(')','(','+','$','!','~','#','%','^','&','*','-',' ','/','`','«','»','ء'),'',$word);
@@ -25,3 +26,303 @@ function calculate_string( $mathString )    {
     else
         return 0;
 }
+function convert_non_persian_chars_to_persian ($word) {
+    //main goal: arabic chars: from ؀ U+0600 (؀) to ۿ U+06FF (ۿ)
+    //source: https://unicode-table.com/en
+    // published on: https://gist.github.com/amirmojiry/ef0b8df7e31287192be81917d4ed5324
+    $right_chars = array (
+      'ا',
+      'ب',
+      'پ',
+      'ت',
+      'ث',
+      'ج',
+      'چ',
+      'ح',
+      'خ',
+      'د',
+      'ذ',
+      'ر',
+      'ز',
+      'ژ',
+      'س',
+      'ش',
+      'ص',
+      'ض',
+      'ط',
+      'ظ',
+      'ع',
+      'غ',
+      'ف',
+      'ق',
+      'ک',
+      'گ',
+      'ل',
+      'م',
+      'ن',
+      'و',
+      'ه',
+      'ی',
+      '‌', /* Zero Width Non-Joiner (nim fasele): U+200C (Unicode) or ‌ (HTML) */
+    );
+    //first char of every array is right char
+    $all_like_chars = array (
+      $alef = array (
+        'ا',
+        'ݳ',
+        'ݴ',
+      ),
+      $be = array (
+        'ب',
+        'ٻ',
+        'ڀ',
+        'ݑ',
+        'ݔ',
+        'ݕ',
+        'ݖ',
+      ),
+      $pe = array (
+        'پ',
+        'ݐ',
+        'ݒ',
+        'ݓ',
+      ),
+      $te = array (
+        'ت',
+        'ٺ',
+        'ټ',
+        'ٽ',
+        'ٿ',
+      ),
+      $se = array (
+        'ث',
+        'ٹ',
+      ),
+      $jim = array (
+        'ج',
+        'ڃ',
+        'ڄ',
+        'ݼ',
+      ),
+      $che = array (
+        'چ',
+        'ڇ',
+        'ڿ',
+        'ݘ',
+        'ݮ',
+        'ݯ',
+      ),
+      $he = array (
+        'ح',
+        'ځ',
+        'ڂ',
+        'څ',
+        'ݗ',
+      ),
+      $khe = array (
+        'خ',
+        'ݲ',
+      ),
+      $dal = array (
+        'د',
+        'ڈ',
+        'ډ',
+        'ڊ',
+        'ڋ',
+        'ڌ',
+        'ڍ',
+        'ڎ',
+        'ڏ',
+        'ڐ',
+        'ݙ',
+        'ݚ',
+        'ۮ',
+      ),
+      $zal = array (
+        'ذ',
+      ),
+      $re = array (
+        'ر',
+        'ړ',
+        'ڔ',
+        'ڕ',
+        'ږ',
+        'ݛ',
+        'ހ',
+        'ۯ',
+        'ڑ',
+        'ڒ',
+        'ݬ',
+        'ݫ',
+        'ڗ',
+        'ڙ',
+        'ݱ',
+      ),
+      $ze = array (
+        'ز',
+      ),
+      $zhe = array (
+        'ژ',
+      ),
+      $sin = array (
+        'س',
+        'ښ',
+        'ڛ',
+        'ݭ',
+        'ݽ',
+      ),
+      $shin = array (
+        'ش',
+        'ݜ',
+        'ڜ',
+        'ݰ',
+        'ݾ',
+        'ۺ',
+      ),
+      $sad = array (
+        'ص',
+        'ڝ',
+        'ڞ',
+      ),
+      $zad = array (
+        'ض',
+        'ۻ',
+      ),
+      $ta = array (
+        'ط',
+        'ڟ',
+      ),
+      $za = array (
+        'ظ',
+      ),
+      $ain = array (
+        'ع',
+      ),
+      $ghain = array (
+        'غ',
+        'ڠ',
+        'ݝ',
+        'ݞ',
+        'ݟ',
+        'ۼ',
+      ),
+      $fe = array (
+        'ف',
+        'ڡ',
+        'ڢ',
+        'ڣ',
+        'ڤ',
+        'ڥ',
+        'ڦ',
+        'ݠ',
+        'ݡ',  
+      ),
+      $ghaf = array (
+        'ق',
+        'ٯ',
+        'ڧ',
+        'ڨ',
+      ),
+      $kaf = array (
+        'ک',
+        'ػ',
+        'ؼ',
+        'ك',
+        'ڪ',
+        'ګ',
+        'ڬ',
+        'ڭ',
+        'ڮ',
+        'ݢ',
+        'ݣ',
+        'ݤ',
+        'ݿ',
+      ),
+      $gaf = array (
+        'گ',
+        'ڰ',
+        'ڱ',
+        'ڲ',
+        'ڳ',
+        'ڴ',
+      ),
+      $lam = array (
+        'ل',
+        'ڵ',
+        'ڶ',
+        'ڷ',
+        'ڸ',
+        'ݪ',
+      ),
+      $mim = array (
+        'م',
+        'ݥ',
+        'ݦ',
+        '۾',
+      ),
+      $noon = array (
+        'ن',
+        'ڹ',
+        'ں',
+        'ڻ',
+        'ڼ',
+        'ڽ',
+        'ݧ',
+        'ݨ',
+        'ݩ',
+      ),
+      $vav = array (
+        'و',
+        'ٶ',
+        'ٷ',
+        'ۄ',
+        'ۅ',
+        'ۆ',
+        'ۇ',
+        'ۈ',
+        'ۉ',
+        'ۊ',
+        'ۋ',
+        'ۏ',
+        'ݸ',
+        'ݹ',
+      ),
+      $ha = array (
+        'ه',
+        'ھ',
+        'ہ',
+        'ۂ',
+        'ۃ',
+        'ە',
+        'ۿ',
+      ),
+      $ye = array (
+        'ی',
+        'ؽ',
+        'ؾ',
+        'ؿ',
+        'ي',
+        'ٸ',
+        'ۍ',
+        'ێ',
+        'ې',
+        'ۑ',
+        'ے',
+        'ۓ',
+        'ݵ',
+        'ݶ',
+        'ݷ',
+        'ݺ',
+        'ݻ',
+      ),
+      //32nd
+      $nim_fasele = array (
+        '‌', /* Zero Width Non-Joiner (nim fasele): U+200C (Unicode) or ‌ (HTML) */
+        '¬',
+      ),
+    );
+    for ($i = 0; $i <= 32; $i++) {
+      $word = str_replace ($all_like_chars[$i], $right_chars[$i], $word);
+    }
+    return $word;
+  }
\ No newline at end of file