$re = '/(?:\+994|0)(?:51|50|55|70|77|99)[^\d]{0,2}[2-9][0-9]{2}[^\d]{0,2}[0-9]{2}[^\d]{0,2}[0-9]{2}[^\d]/m';
$str = '
+994509793270
0509793270
+994708769006
0708769006
+994559793270
0559793270
+994519793270
0519793270
+994999793270
0999793270
+994779793270
0779793270
';
preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0);
// Print the entire match result
var_dump($matches);
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for PHP, please visit: http://php.net/manual/en/ref.pcre.php