我以为才收罗到全角的数字最可恶了，又不能直接利用，于是又要正则过滤（转换）
<?php // 把全角数字转为半角数字 function GetAlabNum($fnum) { $nums = array("０", "１", "２", "３", "４", "５", "６", "７", "８", "９"); $fnums = "0123456789"; for($i = 0;$i <= 9;$i++) $fnum = str_replace($nums[$i], $fnums[$i], $fnum); $fnum = ereg_replace("[^0-9\.]|^0{1,}", "", $fnum); if ($fnum == "") $fnum = 0; return $fnum; } //测试内容 echo 'enenba.com测试功效：<br />'; $str = '７４４０９６８５８'; echo GetAlabNum($str); ?>此函数会过滤掉非数字字符，并把全角的数字转换为半角