在 Wordpress 中使用 AJAX 表单上传文件错误 - 指定文件上传测试失败
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【中文标题】在 Wordpress 中使用 AJAX 表单上传文件错误 - 指定文件上传测试失败【英文标题】:Upload File Error with AJAX Form in Wordpress - Specified file failed upload test 【发布时间】:2021-01-22 15:09:53 【问题描述】:我在同样的问题上卡住了几天,我希望有人可以帮助解决这个问题。我尝试了在 *** 上找到的多个函数,但似乎我做错了什么!
我需要使用 AJAX 将文件上传到 wordpress 库并在前端提交表单。
这是表格:
function shortcode__new_upload_file()
/**
* @var WP_User $current_user
*/
$current_user = $GLOBALS['current_user'];
ob_start(); ?>
<form id="form-upload" method="POST" enctype="multipart/form-data">
<div class="custom-file">
<input type="file" name="imagefile" class="custom-file-input" id="imageFile">
<label class="custom-file-label" for="imageFile">Choose file</label>
</div>
<textarea class="form-control" id="imageMessage" name="message"></textarea>
<button type="submit" class="btn btn-outline-secondary submit" id="process-upload"><?php _e('Save'); ?></button>
<button type="reset" class="btn btn-outline-danger" id="cancel-upload"><?php _e('Cancel'); ?></button>
</form>
<?php
$html = ob_get_clean();
return $html;
// Ads shortcode so you can use the form anywhere you want.
add_shortcode( 'new_upload_file', 'shortcode__new_upload_file' );
AJAX 调用:
jQuery(document).ready(function($)
//$('#process-upload').on('click', function(e)
$("#form-upload").on('submit',function(e)
e.preventDefault();
var el_form = $('#form-upload')
//var data = new FormData();
//data.append('action', 'new_upload_file');
//data.append('imageFile', $('input[type=file]')[0].files[0] );
//data.append('message', $('#imageMessage').val() );
// If form is valid run function
new_upload_file()
// Ajax request.
function new_upload_file()
$.ajax(
url: localized_new_upload_file.admin_ajax_url,
type: 'POST',
//contentType: false,
enctype: 'multipart/form-data',
//processData: false,
//data: data,
dataType: 'json',
data:
action: 'new_upload_file', // Set action without prefix 'wp_ajax_'.
form_data: el_form.serialize()
,
cache: false,
success: function(response)
console.log(response);
window.alert('Done!');
);
);
);
function upload_file_callback()
// get entered form data
parse_str( $_POST['form_data'], $form_data );
$postarr = array();
// merge all array and make new array, now get data for each input like following: $form_data[LUBUVNA_PREFIX.'from']
$postarr = array_merge( $postarr, $form_data );
if ( ! function_exists( 'wp_handle_upload' ) )
require_once( ABSPATH . 'wp-admin/includes/file.php' );
//$uploadedfile = isset($_FILES['imagefile']) ? $_FILES['imagefile'] : '';
$uploadedfile = $form_data['imagefile']; //$_FILES['imagefile'];
$upload_overrides = array( 'test_form' => false );
$movefile = wp_handle_upload( $uploadedfile, $upload_overrides );
if ( $movefile && !isset( $movefile['error'] ) )
$feedback = "File is valid, and was successfully uploaded.\n";
var_dump( $movefile);
else
/**
* Error generated by _wp_handle_upload()
* @see _wp_handle_upload() in wp-admin/includes/file.php
*/
$feedback = print_r($movefile, true);
// send email with details
$headers = [
'MIME-Version: 1.0',
'From: myemailfrom@hotmail.com',
'Content-Type: text/html; charset=UTF-8'
];
$headers = implode("\r\n", $headers);
wp_mail('myemailto@gmail.com','Script Ran','<br>FEEDBACK:<br>'.$feedback. '<br>FORM Array:<br>' . print_r($postarr, true) ,$headers);
//add_action('wp_ajax_nopriv_new_upload_file', 'upload_file_callback');
add_action( 'wp_ajax_new_upload_file', 'upload_file_callback' );
所以表单数据在表单提交后显示在电子邮件中,如下所示:
FEEDBACK:
Array ( [error] => Specified file failed upload test. ) NASH TEXT:
FORM Array:
:Array ( [message] => car )
我没有得到imagefile
字段的数据。这就是为什么我猜我收到错误Specified file failed upload test.
我的功能有什么问题.. 顺便说一下,我尝试了 $_FILES / $_POST 但我缺少一些东西。
编辑 JS文件
jQuery(document).ready(function($)
//$("#form-upload").submit(function(e)
$("#form-upload").on('submit',function(e)
e.preventDefault();
var $this = $(this);
var formData = new FormData( $this[0] );
formData.append('action', 'new_upload_file');
//formData.append('_nonce', $('input[name*="my_token"]') ).val();
//formData.append('_nonce', $this.closest('form').find('.nonce').val();
formData.append('_nonce', $(this).find('input[name*="my_token"]').val() );
// Ajax request.
$.ajax(
url: localized_new_upload_file.admin_ajax_url,
type: 'POST',
data: 'form_data' : formData ,
contentType: false,
//enctype: 'multipart/form-data',
cache: false,
processData: false,
success: function(response)
console.log(response);
window.alert('Done!');
);
return false;
);
);
表格
<form id="form-upload" method="POST" enctype="multipart/form-data">
<div class="custom-file">
<!--<input type="file" name="imagefile" class="custom-file-input" id="imageFile" accept="image/*">-->
<input type="file" name="imagefile" class="custom-file-input" id="imageFile">
<label class="custom-file-label" for="imageFile">Choose file</label>
<!--<input name="my_token" class="nonce" value="<?php //echo wp_create_nonce("my_token"); ?>" type="hidden">-->
<?php wp_nonce_field( SECURE_AUTH_SALT, 'my_token' ) ?>
</div>
<textarea class="form-control" id="imageMessage" name="message"></textarea>
<button type="submit" class="btn btn-outline-secondary submit" id="process-upload"><?php _e('Save'); ?></button>
<button type="reset" class="btn btn-outline-danger" id="cancel-upload"><?php _e('Cancel'); ?></button>
</form>
PHP
function script__new_upload_file()
wp_enqueue_media();
wp_enqueue_script(
'new_upload_file',
get_stylesheet_directory_uri(). '/ajax-file-upload.js',
array( 'jquery' ),
'1.0.0',
true
);
wp_localize_script( 'new_upload_file', 'localized_new_upload_file', array(
'admin_ajax_url' => admin_url( 'admin-ajax.php' ),
//'security' => wp_create_nonce( 'my-special-string' )
));
// Use wp_enqueue_scripts action hook so you can correctly localize the script with admin ajax URL.
add_action( 'wp_enqueue_scripts', 'script__new_upload_file' );
function upload_file_callback()
// get entered form data
parse_str( $_POST['form_data'], $form_data );
$postarr = array();
// merge all array and make new array, now get data for each input like following: $form_data[LUBUVNA_PREFIX.'from']
$postarr = array_merge( $postarr, $form_data );
if ( ! function_exists( 'wp_handle_upload' ) )
require_once( ABSPATH . 'wp-admin/includes/file.php' );
//$uploadedfile = isset($_FILES['imagefile']) ? $_FILES['imagefile'] : '';
$uploadedfile = $form_data['imagefile']; //$_FILES['imagefile'];
//print_r($uploadedfile);
// die();
$upload_overrides = array( 'test_form' => false );
$movefile = wp_handle_upload( $uploadedfile, $upload_overrides );
if ( $movefile && !isset( $movefile['error'] ) )
$feedback = "File is valid, and was successfully uploaded.\n";
var_dump( $movefile);
else
/**
* Error generated by _wp_handle_upload()
* @see _wp_handle_upload() in wp-admin/includes/file.php
*/
$feedback = print_r($movefile, true);
// send email with details
$headers = [
'MIME-Version: 1.0',
'From: myemailfrom@hotmail.com',
'Content-Type: text/html; charset=UTF-8'
];
$headers = implode("\r\n", $headers);
wp_mail('myemailto@gmail.com','Script Ran','<br>FEEDBACK:<br>'.$feedback. '<br>FORM Array:<br>' . print_r($postarr, true) ,$headers);
add_action('wp_ajax_nopriv_new_upload_file', 'upload_file_callback');
add_action( 'wp_ajax_new_upload_file', 'upload_file_callback' );
【问题讨论】:
【参考方案1】:在 $.ajax 中使用 FormData 对象时,直接将其作为数据字段传递
jQuery(document).ready(function($)
//$("#form-upload").submit(function(e)
$("#form-upload").on('submit',function(e)
e.preventDefault();
var formData = new FormData( this );
formData.append('action', 'new_upload_file');
//formData.append('_nonce', $('input[name*="my_token"]') ).val();
//formData.append('_nonce', $this.closest('form').find('.nonce').val();
formData.append('_nonce', $(this).find('input[name*="my_token"]').val() );
// Ajax request.
$.ajax(
url: localized_new_upload_file.admin_ajax_url,
type: 'POST',
data: formData, //<----- Pass the formdata object only
contentType: false,
cache: false,
processData: false,
success: function(response)
console.log(response);
window.alert('Done!');
);
return false;
);
);
在 PHP 中
$_FILES['imagefile']
将授予您对文件的访问权限$_POST['message']
将授予您对 textarea 文本的访问权限$_POST['_nonce']
将授予您对 nonce 的访问权限$_POST['action']
将授予您访问权限到行动
【讨论】:
还有一个问题,我怎样才能得到他上传文件的url?从响应中?wp_handle_upload
的返回值应该为您提供一个包含文件 url 的数组
是的,现在知道了。喜欢$movefile['url']
。非常感谢以上是关于在 Wordpress 中使用 AJAX 表单上传文件错误 - 指定文件上传测试失败的主要内容,如果未能解决你的问题,请参考以下文章