已更新-向下滚动

经过太多的艰苦工作和研究，以及一些定制，我编写了下面的压缩几行代码，可以在wordpress的任何地方使用媒体上传器。只需将代码放在一些函数中，并在任何你想要的地方调用该函数。上传/选择的文件的路径将被复制到文本框，然后你就可以使用它。

// jQuery
wp_enqueue_script('jquery');
// This will enqueue the Media Uploader script
wp_enqueue_media();
?>
    <div>
    <label for="image_url">Image</label>
    <input type="text" name="image_url" id="image_url" class="regular-text">
    <input type="button" name="upload-btn" id="upload-btn" class="button-secondary" value="Upload Image">
   
</div>
<script type="text/javascript">
jQuery(document).ready(function($){
    $('#upload-btn').click(function(e) {
        e.preventDefault();
        var image = wp.media({ 
            title: 'Upload Image',
            // mutiple: true if you want to upload multiple files at once
            multiple: false
        }).open()
        .on('select', function(e){
            // This will return the selected image from the Media Uploader, the result is an object
            var uploaded_image = image.state().get('selection').first();
            // We convert uploaded_image to a JSON object to make accessing it easier
            // Output to the console uploaded_image
            console.log(uploaded_image);
            var image_url = uploaded_image.toJSON().url;
            // Let's assign the url value to the input field
            $('#image_url').val(image_url);
        });
    });
});
</script>

UPDATE：只是添加。您可能需要在插件/主题文件中添加函数 Package 器。如下所示：

// UPLOAD ENGINE
function load_wp_media_files() {
    wp_enqueue_media();
}
add_action( 'admin_enqueue_scripts', 'load_wp_media_files' );

这将调用相关的JS文件和CSS文件，如果WP加载上传管理器失败。这也删除了控制台警告。

我正在使用这个方法来使用媒体上传到我的自定义插件。可能这会有所帮助。
在**主主题文件（index.php）**中添加这些。

wp_enqueue_style('thickbox'); // call to media files in wp
wp_enqueue_script('thickbox');
wp_enqueue_script( 'media-upload'); 

// load script to admin
function wpss_admin_js() {
     $siteurl = get_option('siteurl');
     $url = $siteurl . '/wp-content/plugins/' . basename(dirname(__FILE__)) . '/js/admin_script.js';
     echo "<script type='text/javascript' src='$url'></script>"; 
}
 add_action('admin_head', 'wpss_admin_js');

在admin_script.js文件中，

jQuery('#wpss_upload_image_button').click(function() {
    formfield = jQuery('#wpss_upload_image').attr('name');
    tb_show('', 'media-upload.php?type=image&TB_iframe=true');
    return false;
});

window.send_to_editor = function(html) {
 imgurl = jQuery('img',html).attr('src');
 jQuery('#wpss_upload_image').val(imgurl);
 tb_remove();

 jQuery('#wpss_upload_image_thumb').html("<img height='65' src='"+imgurl+"'/>");
}

管理文件（admin_settings. php），

<div id="wpss_upload_image_thumb" class="wpss-file">
    <?php if(isset($record->security_image) && $record->security_image !='') { ?>
       <img src="<?php echo $record->security_image;?>"  width="65"/><?php } else {    echo $defaultImage; } ?>
</div>
<input id="wpss_upload_image" type="text" size="36" name="wpss_upload_image" value="" class="wpss_text wpss-file" />
<input id="wpss_upload_image_button" type="button" value="Upload Image" class="wpss-filebtn" />

更多详情in my blog

在您的自定义插件中使用它

<label for="upload_image">
    <input id="upload_image" type="text" size="36" name="ad_image" value="http://" /> 
    <input id="upload_image_button" class="button" type="button" value="Upload Image" />
    <br />Enter a URL or upload an image
</label>

<?php
add_action('admin_enqueue_scripts', 'my_admin_scripts');

function my_admin_scripts() {
    if (isset($_GET['page']) && $_GET['page'] == 'my_plugin_page') {
        wp_enqueue_media();
        wp_register_script('my-admin-js', WP_PLUGIN_URL.'/my-plugin/my-admin.js', array('jquery'));
        wp_enqueue_script('my-admin-js');
    }
}

?>

<script>
    jQuery(document).ready(function($){

    var custom_uploader;

    $('#upload_image_button').click(function(e) {

        e.preventDefault();

        //If the uploader object has already been created, reopen the dialog
        if (custom_uploader) {
            custom_uploader.open();
            return;
        }

        //Extend the wp.media object
        custom_uploader = wp.media.frames.file_frame = wp.media({
            title: 'Choose Image',
            button: {
                text: 'Choose Image'
            },
            multiple: true
        });

        //When a file is selected, grab the URL and set it as the text field's value
        custom_uploader.on('select', function() {
            console.log(custom_uploader.state().get('selection').toJSON());
            attachment = custom_uploader.state().get('selection').first().toJSON();
            $('#upload_image').val(attachment.url);
        });

        //Open the uploader dialog
        custom_uploader.open();

    });

});
    </script>