Question

嗨我正在尝试限制文件上传，如果文件大小超过特定大小但我的问题是如果文件大小超过最大大小我没有得到任何信息关于php服务器中的文件我在HTML中的代码如下，请帮我解释为什么我没有得到这些信息。

<?php echo $form->create('Add', array('id'=>'addFile', 'enctype'=>'multipart/form-data', 'url'=>'/content/upload?path='.$contentItem['url_path']),array(         
    'inputDefaults' => array('label' => false))); ?>    
<div class="_100 formText">
    <label>Section&nbsp;: </label>
     <input type="input" value="<?php echo (!empty($contentItem['display_text'])) ? $contentItem['display_text'] : $contentItem['parent_disp_txt'] ;?>" name="data[Add][section]" readonly="readonly"/>
</div>
<div class="clear" style="height: 5px;"></div>
<div class="_100 formText">
    <label>File Name&nbsp;: </label>
     <input type="input" value="" name="data[Add][file]" class="filePath"/>
</div>
<div class="clear" style="height: 5px;"></div>
<div class="_99 formText">
    <label>File Description&nbsp;: </label>
    <textarea rows="3" cols="" name="data[Add][description]" class="description" style="resize:none;"></textarea>
</div>
<div class="clear" style="height: 15px;"></div>
<div class="_99 formText">
    <label>Select File to Upload: </label>
    <input type="file" name="data[Add][upload]" class="filesToUpload" id="file"/>
</div>
<?php echo $html->tags['formend'];?>

Answer 1

if(isset($_FILES['uploaded_file'])) {
    $errors     = array();
    $maxsize    = 2097152;
    $acceptable = array(
        'application/pdf',
        'image/jpeg',
        'image/jpg',
        'image/gif',
        'image/png'
    );

    if(($_FILES['uploaded_file']['size'] >= $maxsize) || ($_FILES["uploaded_file"]["size"] == 0)) {
        $errors[] = 'File too large. File must be less than 2 megabytes.';
    }

    if(!in_array($_FILES['uploaded_file']['type'], $acceptable) && (!empty($_FILES["uploaded_file"]["type"]))) {
    $errors[] = 'Invalid file type. Only PDF, JPG, GIF and PNG types are accepted.';
}

if(count($errors) === 0) {
    move_uploaded_file($_FILES['uploaded_file']['tmpname'], '/store/to/location.file');
} else {
    foreach($errors as $error) {
        echo '<script>alert("'.$error.'");</script>';
    }

    die(); //Ensure no more processing is done
}
}

试试这段代码。

在php中验证文件上传

1 个答案: