antshop/backend/logic/file/FileManager.php

<?php


namespace backend\logic\file;

use common\models\ars\TemFile;

class FileManager
{
    public static $extension = [
        TemFile::TYPE_IMAGE => ['jpg', 'png', 'jpeg'],
        TemFile::TYPE_VIDEO => ['mp4'],
        TemFile::TYPE_EXCEL => [],
        TemFile::TYPE_WORD => ['docx'],
        TemFile::TYPE_TXT => ['txt'],
    ];

    /**
     * @param $array
     * @param $value
     * @param int $key
     * @return int
     * 查看$extension数组中是否存在文件类型，不存在则返回-1
     */
    public function searchKey($array,$value, $key=-1){
        foreach($array as $k=>$row){
            if(!is_array($row)){
                if($row == $value){
                    if($key != -1) {
                        return $key;
                    }else{
                        return -1;
                    }
                }
            }else{
                $r = self::searchKey($row,$value, $k);
                if($r != -1){
                    return $r;
                }
            }
        }
        return -1;
    }
}