An example of code for converting php full-width numbers to half-width numbers

The PHP code implements converting chamfered numbers into half-width numbers. Friends in need can refer to it.

Many PHP tutorials on the Internet have such examples, but they are not as good as those in Programmer’s Home, haha, no nonsense, let’s take a look at the examples. Example:

<?php
//全角数字转半角数字
//by bbs.it-home.org
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;
}
?>