WordPress文件没有在主题设置中上载

Question

因此，我正在构建我自己的WordPress主题，我包括了一个设置，以便能够更改网站徽标。

这是注册处理上载的功能的部分：

add_settings_field("logo", "Logo", "logo_display", "theme-options", "section");
register_setting("section", "logo", "handle_logo_upload");

这是处理程序函数，它应该处理给定的文件：

function handle_logo_upload()
{
    if ( ! function_exists( 'wp_handle_upload' ) ) {
        require_once( ABSPATH . 'wp-admin/includes/file.php' );
        }

        $uploadedfile = $_FILES['file'];

        $upload_overrides = array( 'test_form' => false );

        $movefile = wp_handle_upload( $uploadedfile, $upload_overrides );

        if ( $movefile && !isset( $movefile['error'] ) ) {
            echo "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
             */
        echo $movefile['error'];
    }

    return 'stringaz';      
}

这就是主题面板的样子：http://pasteboard.co/uwC3Qmi.png

在这里，您可以看到处理程序不起作用，因为有一个名为'stringaz‘的字符串显示在标识应该出现的位置：http://pasteboard.co/vsnqkay.png

要运行这段代码，我需要更改到处理程序函数中的什么？

干杯!

Answer 1

您可以尝试这个例子，它的例子，您应该更改您自己的变量名和所有这些：

if(!empty($_FILES['user_image']["name"]))
{
    if( $_FILES['user_image']['type'] == "image/jpeg" || $_FILES['user_image']['type'] == "image/png" || $_FILES['user_image']['type'] == "image/jpg")
    {
        $wp_upload_dir = wp_upload_dir();
        $target_file = $wp_upload_dir['path']."/".$_FILES['user_image']["name"];
        $target_file1 = $wp_upload_dir['url']."/".$_FILES['user_image']["name"];
        if ( move_uploaded_file($_FILES['user_image']["tmp_name"], $target_file) )
            update_user_meta($current_user->ID, 'cupp_upload_meta', $target_file1 );
        else
            $errmsg = "Sorry, there was an error uploading your file.";
    }
    else
    {
        $errmsg = "Image file have not valid extension.";
    }
}

Answer 2

在enctype="multipart/form-data"标记中添加<form>。就像<form method="post" action="options.php" enctype="multipart/form-data">

function handle_logo_upload()
{
    if(!function_exists('wp_handle_upload')){
        require_once(ABSPATH.'wp-admin/includes/file.php');
    }
    if(!empty($_FILES["logo"]["tmp_name"]))
    {
        $urls = wp_handle_upload($_FILES["logo"], array('test_form' => FALSE));
        $temp = $urls["url"];
        return $temp;   
    }
    return $option;
}

完成了！:)