上传后用随机字符串重命名文件并将名称存储在数组中

时间:2018-01-22 19:17:00

标签: php file-upload multifile-uploader multifile

我正在尝试使用foreach处理多个文件上传,然后使用随机字符串重命名文件并将文件名存储在一个数组中,这是我当前的代码:

    // this variable stores the id of last inserted row in MySQLi DB
    $last_shipment_id = mysqli_insert_id($con);
    // Array of valid file formats
    $valid_formats = array("jpg", "jpeg", "png");
    // the upload path
    $path = "../uploads/"; // Upload directory
    // count variable for foreach counting
    $count = 0;
    // variable for generated file names to use them later
    $new_file_name = array();


    foreach ($_FILES['files']['name'] as $f => $name) {
        $ext = pathinfo($name, PATHINFO_EXTENSION);
        $new_file_name[] = randomNumber(14)."-".$last_shipment_id.'.'.$ext;

        if ($_FILES['files']['error'][$f] == 4) {
            continue;
        }          
        if ($_FILES['files']['error'][$f] == 0) {              
            if( ! in_array(pathinfo($name, PATHINFO_EXTENSION), $valid_formats) ){
                $message[] = "$name is not a valid format";
                continue;
            } else {
                if(move_uploaded_file($_FILES["files"]["tmp_name"][$f], $path.$new_file_name)) {

                }
            }    
        }
    }

我无法找到问题所在,我应该对每个生成的文件名使用foreach,然后在move_uploaded_file内使用foreach吗?

1 个答案:

答案 0 :(得分:1)

你完全错了。您已在 <li> <custom-tooltip id="main-search-tt" placement="'right'" icon-class="'icon-question-circle'"> <a ui-sref="pages">Pages</a> </custom-tooltip> </li> 语句中初始化$_FILES['files']['name'],并尝试在每次迭代中访问foreach$_FILES['files']['error']。由于这是一个数组,所以不可能。

所以解决方法如下,

$_FILES["files"]["tmp_name"]

希望这可以帮到你。