- mb_ereg_replace: documentation ( source)
<?php
$str = array();
$str_n = array();
$str[0] = "Shockwave Flash 14.0 r0";
//$str_n[0] = mb_strstr($str[0],[^0-9]);
echo mb_ereg_replace('[^0-9]', '', $str[0]);
echo mb_ereg_replace('[0-9]', '', $str[0]);
//echo $str_n[0];
?>