代码如下复制代码function getRelativePath($a, $b) {$returnPath = array(dirname($b));$arrA = explode('/', $a);$arrB = explode('/', $returnPath[0]);for ($n = 1, $len = count($arrB); $n if ($arrA[$n] != $arrB[$n]) {break;}}if ($len - $n > 0) {$returnPath = array_merge($returnPath, array_fill(1, $len - $n, '..'));}$returnPath = array_merge($returnPath, array_slice($arrA, $n));return implode('/', $returnPath);}var_dump(getRelativePath($a, $b));//方法二$a = "/a/b/c/d/index.php";//echo basename($a,'.php');// 返回路径中文件名部分//echo dirname($a);$b = "/a/b/12/34/index2.php";function getRelativePath($path1,$path2){$p1 = dirname($path1);$p2 = dirname($path2);$arr1 = explode('/',$p1);$arr2 = explode('/',$p2);$diff_arr= array_diff($arr2,$arr1); //计算差集 注意这里 是谁相对谁的$inter_arr = array_intersect($arr1,$arr2);//计算交集$leng = count($inter_arr); //长度是以交集的为准 即求..部分for($i=1;$i$inter_arr[$i] = '..';}$merge_arr = array_merge($inter_arr,$diff_arr);$fina_arr = implode('/',$merge_arr);return $fina_arr;}var_dump(getRelativePath($a,$b));//返回 string '/../../12/34' (length=12)//如果改成$diff_arr= array_diff($arr1,$arr2); 就返回string '/../../c/d (length=12)
php 获取相对路径实例代码
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