PHP上传输入数组并如何查找有多少个文件？

发布于 2024-12-05 10:21:16 字数 659 浏览 0 评论 0原文

我有这样的表格：

<form enctype="multipart/form-data" action="upload.php" method="POST">
    <input type="file" name="photo[]" />
    <input type="file" name="photo[]" />
</form>

我用这种方式上传文件：

function upFiles($files){
    for($i = 0 ; $i < $files ; $i++){
        $FV_filename = $_FILES['photo']['name'][$i];
        $fileTYPE = substr($FV_filename , -4);
        move_uploaded_file($_FILES['photo']['tmp_name'][$i], uniqid().$fileTYPE);
    }
}

upFiles($_POST['howManyFiles']);

正如你所看到的，我从客户端获取了已发送的文件数量。我想做的是在服务器端检查已收到多少文件。我怎样才能做到这一点？是否有任何内置的 php 函数，如果没有那么如何创建一个？

原文

I have this form :

<form enctype="multipart/form-data" action="upload.php" method="POST">
    <input type="file" name="photo[]" />
    <input type="file" name="photo[]" />
</form>

And I upload the files with php this way :

function upFiles($files){
    for($i = 0 ; $i < $files ; $i++){
        $FV_filename = $_FILES['photo']['name'][$i];
        $fileTYPE = substr($FV_filename , -4);
        move_uploaded_file($_FILES['photo']['tmp_name'][$i], uniqid().$fileTYPE);
    }
}

upFiles($_POST['howManyFiles']);

As you can see I get from the the client side how many files have been sent.
What I want to do is to check in the server side how many files have been received.
How can I do that? Is there any built in php function, if not then how to create one?

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执着的年纪 2024-12-12 10:21:16

count( $_FILES['photo']['name'] );

应该有效。或者，只需将 for 循环重写为 foreach：

foreach ( $_FILES as $name => $file ) {
    var_dump( $file );
    // process file...
}

count( $_FILES['photo']['name'] );

should work. Alternatively, just rewrite your for loop to a foreach:

foreach ( $_FILES as $name => $file ) {
    var_dump( $file );
    // process file...
}

回复收藏 0 原文

要走干脆点 2024-12-12 10:21:16

您可以使用 is_uploaded_file 检查文件是否已上传，如下所示：

function upFiles($files){
    for($i = 0 ; $i < $files ; $i++){
        if (is_uploaded_file($_FILES['photo']['tmp_name'][$i])) {
            // uploaded file
        }
    }
}

您可以使用 foreach 循环遍历所有上传的照片，而不是使用幻数< /em>.

来自： php.net

You could check whether the file has been uploaded with is_uploaded_file, like so:

function upFiles($files){
    for($i = 0 ; $i < $files ; $i++){
        if (is_uploaded_file($_FILES['photo']['tmp_name'][$i])) {
            // uploaded file
        }
    }
}

You could use foreach to loop over all the uploaded photos instead of using a magic number.

From: php.net

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紫竹語嫣☆ 2024-12-12 10:21:16

迭代 $_FILES 数组：

function upFiles( $baseVarName ){

    foreach( $_FILES[ $baseVarName ] as $fileDetails ) {

        $FV_filename = $fileDetails['name'][$i];
        $fileTYPE = substr($FV_filename , -4);
        move_uploaded_file( $fileDetails['tmp_name'][$i], uniqid().$fileTYPE);

    }

}

upFiles( 'photo' );

Iterate over the $_FILES array:

function upFiles( $baseVarName ){

    foreach( $_FILES[ $baseVarName ] as $fileDetails ) {

        $FV_filename = $fileDetails['name'][$i];
        $fileTYPE = substr($FV_filename , -4);
        move_uploaded_file( $fileDetails['tmp_name'][$i], uniqid().$fileTYPE);

    }

}

upFiles( 'photo' );

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