php代码把全角数字转为半角数字

站长资源 2024/11/25 佚名

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//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 = 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;
}

php代码把全角数字转为半角数字