<?php
function getalabnum($fnum) {
    $nums = array("０","１","２","３","４","５","６","７","８","９","＋","－","％","．");
    $fnums = "0123456789+-%.";
    for ($i = 0; $i < count($nums); $i++) {
        if ($nums[$i] == $fnum) return $fnums[$i];
    }
    return $fnum;
}
//实例应用
echo getalabnum('６'); // 6

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