<?php $a = 'aa/bb/cc/dd/a.php'; $b ='aa/bb/11/22/33/b.php'; //写一个函数,数出二个文件的相对路径。 function GetNum($variant,$variant2){ $pth1 = null; $pth2 = null; $tmp = array(); //分别判断路径下面的文件是不是存在. if(is_file($variant) && is_file($variant2)){ $len1 = count($pth1 = explode('//m.sbmmt.com/m/',dirname($variant))); $len2 = count($pth2 = explode('//m.sbmmt.com/m/',dirname($variant2))); $maxlen = max($len1,$len2); for($i=1;$i<$maxlen;$i++){ if($pth1[$i] != $pth2[$i] && isset($pth1[$i])){ if(isset($pth2[$i])) $tmp[] = $pth2[$i]; }else{ $tmp[] = $pth2[$i]; $pathe .= '../'; } } return $pathe.implode('//m.sbmmt.com/m/',$tmp).'//m.sbmmt.com/m/'.basename($variant2); }else{ return '路径不合法!'; } } print_r(GetNum($a,$b));
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