网上很多php 教程都有这样的例子,不过不如脚本学堂的好,哈哈,不废话,来看例子吧。
示例:
<?php //全角数字转半角数字 //by www.jb200.com function GetAlabNum($fnum){ $nums = array('0','1','2','3','4','5','6','7','8','9','.','-','+',':'); $fnums = array('0','1', '2','3', '4','5', '6', '7','8', '9','.', '-', '+',':'); $fnlen = count($fnums); for($i=0;$i<$fnlen;$i++) $fnum = str_replace($nums[$i],$fnums[$i],$fnum); $slen = strlen($fnum); $oknum = ''; for($i=0;$i<$slen;$i++){ if(ord($fnum[$i]) > 0x80) $i++; else $oknum .= $fnum[$i]; } if($oknum=="") $oknum=0; return $oknum; } ?>