php下一个阿拉伯数字转中文数字的函数

<?php function ch_num($num,$mode=true) { $char = array(“零”,”壹”,”贰”,”叁”,”肆”,”伍”,”陆”,”柒”,”捌”,”玖”); $dw = array(“”,”拾”,”佰”,”仟”,””,”萬”,”億”,”兆”); $dec = “點”; $retval = “”;   if($mode) preg_match_all(“/^0*(d*).?(d*)/”,$num, $ar); else preg_match_all(“/(d*).?(d*)/”,$num, $ar);   if($ar[2][0] != “”) $retval