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本文介紹了PHP:UPLOAD_ERR_INI_SIZE 有什么意義?的處理方法，對大家解決問題具有一定的參考價值，需要的朋友們下面隨著小編來一起學習吧！

問題描述

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PHP 手冊中有一個部分叫做處理文件上傳.該部分有一個名為錯誤消息說明的小節.該小節描述了一個名為UPLOAD_ERR_INI_SIZE"的錯誤:

值:1；上傳的文件超過了 upload_max_filesize 指令在 php.ini 中.

但是，根據我的經驗，不可能使用 UPLOAD_ERR_INI_SIZE 檢查這個特定錯誤，因為如果用戶確實上傳了超過 php.ini 中的 upload_max_filesize 指令的文件，則 $_FILES 超全局變量是空的.想親自測試一下嗎?將其另存為upload_test.php"，然后嘗試上傳低于限制的文件，然后上傳超過限制的文件:

<!DOCTYPE html><html lang="zh-cn"><頭><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>PHP 上傳測試</title><身體><h1>上傳文件(最大文件大小:<?php echo $max_filesize_in_mib; ?> MiB)</h1><form action="upload_test.php?submitted=true" enctype="multipart/form-data" method="post"><input type="file" name="upload_test"><input type="hidden" name="random_field" value="您應該在 $_POST 超全局變量中看到這個字段."><輸入類型=提交"值=上傳"></表單>

所以我的問題是:如果您永遠無法檢查 UPLOAD_ERR_INI_SIZE 有什么意義?

解決方案

UPLOAD_ERR_INI_SIZE 值:1；上傳的文件超過了 php.ini 中的 upload_max_filesize 指令.

當您的 POST_MAX_SIZE 大于 UPLOAD_MAX_FILESIZE 時，這是有道理的.

我在 POST_MAX_SIZE 為 128MB 的環境中嘗試過，然后我將 UPLOAD_MAX_FILESIZE 設置為 1MB

這是我得到的(正如預期的那樣):

<前>$_POST 的內容:大批([random_field] => 您應該在 $_POST 超全局變量中看到此字段.)$_FILES 的內容:大批([upload_test] => 數組([名稱] => Scan.tiff[類型] =>[tmp_name] =>[錯誤] => 1[尺寸] => 0))

雖然我們沒有得到文件的大小，但我們知道它超過了upload_max_filesize.

The PHP manual has a section called Handling file uploads. That section has a subsection called Error Messages Explained. That subsection describes an error called "UPLOAD_ERR_INI_SIZE":

Value: 1; The uploaded file exceeds the upload_max_filesize directive in php.ini.

However, in my experience, it's impossible to ever check for this particular error using UPLOAD_ERR_INI_SIZE because if a user ever does upload a file that exceeds the upload_max_filesize directive in php.ini, the $_FILES superglobal is empty. Want to test it for yourself? Save this as "upload_test.php" and then try to upload a file that's under the limit and then a file that's over the limit:

<?php

    if (isset($_GET['submitted']) && $_GET['submitted'] === 'true')
    {
        echo 'Contents of $_POST:<hr><pre>';
        print_r($_POST);
        echo '</pre><hr>Contents of $_FILES:<hr><pre>';
        print_r($_FILES);
        echo '</pre><hr>';
        exit;
    }

    $max_filesize_in_mib = min((int)(ini_get('upload_max_filesize')), (int)(ini_get('post_max_size')), (int)(ini_get('memory_limit')));

?>
<!DOCTYPE html>
<html lang="en">
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
        <title>PHP Upload Test</title>
    </head>
    <body>
        <h1>Upload a File (Maximum File Size: <?php echo $max_filesize_in_mib; ?> MiB)</h1>
        <form action="upload_test.php?submitted=true" enctype="multipart/form-data" method="post">
            <input type="file" name="upload_test">
            <input type="hidden" name="random_field" value="You should see this field in the $_POST superglobal.">
            <input type="submit" value="Upload">
        </form>
    </body>
</html>

So my question is this: what's the point of UPLOAD_ERR_INI_SIZE if you can never check for it?

解決方案

UPLOAD_ERR_INI_SIZE Value: 1; The uploaded file exceeds the upload_max_filesize directive in php.ini.

This make sense when your POST_MAX_SIZE is bigger than UPLOAD_MAX_FILESIZE.

I tried in an environment where POST_MAX_SIZE is 128MB, then i set UPLOAD_MAX_FILESIZE to 1MB

Here's what i got (as expected):

Contents of $_POST:
Array
(
    [random_field] => You should see this field in the $_POST superglobal.
)

Contents of $_FILES:
Array
(
    [upload_test] => Array
        (
            [name] => Scan.tiff
            [type] => 
            [tmp_name] => 
            [error] => 1
            [size] => 0
        )
)

Although we don't get the size of the file, we do know that it's exceeding the upload_max_filesize.

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PHP:UPLOAD_ERR_INI_SIZE 有什么意義?

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