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I tried to write a Wordpress plugin, but I failed [closed]

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I write a simple wordpress plugins ..

it is for friend blogs , using wordpres 3

but I don't know where is the problem ..

this is the code ..

<?
/*
Plugin Name:  RandFriendB
Plugin URI: http://www.abosami.com
Description: Show your frineds blogs ..
Version: 1.0
Author: abosami
Author URI: http://www.abosami.com
*/
load_plugin_textdomain('randfriendb', "/wp-content/plugins/randfriendb/");
function randfriendb_admin()
    {
function table_exists ($table, $db=DB_NAME) {
        $tables = mysql_list_tables ($db);
        while (list ($temp) = mysql_fetch_array ($tables)) {
                if ($temp == $table) {
                        return TRUE;
                }
        }
        return FALSE;
}
if (!table_exists("wp_randfb"))
        {
        $create = mysql_query("CREATE TABLE `wp_randfb` (
                    `id` INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
                    `blog_title` VARCHAR(200) NOT NULL,
                    `blog_url` VARCHAR(200) NOT NULL,
                    `blog_desc` VARCHAR(200) NOT NULL
                    )
                    ");
            if ($create)
                {
                 echo '<div class="wrap"><h2>'.__("The table is created","randfriendb").'</h2></div><br />'.__("please wait ...","randfriendb");
                echo '<META HTTP-EQUIV="refresh" CONTENT="1; URL=admin.php?page=randfriendb/randfriendb.php&action=add">';
                }else{
                         echo '<div class="wrap"><h2>'.__("error","randfriendb").'</h2></div>';
                         echo mysql_error();
                }
        }else{
        if (!isset($_GET['action']) || $_GET['action'] == "add")
            {
                echo '<form method="POST" action="admin.php?page=randfriendb/randfriendb.php&action=insert">
                <div class="wrap"><h2>'.__("Add New blog:","randfriendb").'</h2></div><br />
                <table class="form-table">
                <tr>
                <th>'.__("Blog Title:","randfriendb"). '<span class="description"></span></th>
                <td><input type="text" name="blog_title" class="regular-text" /></td>
                </tr>
                <tr>
                <th>'.__("Blog URL:","randfriendb").'<span class="description"></span></th>
                <td><input type="text" name="blog_url" class="regular-text" /></td>
                </tr>
                <tr>
                <th>'.__("Description:","randfriendb").' <span class="description"></span></th>
                <td><textarea name="blog_desc" rows="5" cols="30"></textarea></td>
                </tr>

                </table>
                <p class="submit">
                <input type="submit" class="button-primary" value="'.__("Add","randfriendb").'" name="submit" />
                </p>

                </div>
                </form>
                ';

            }elseif($_GET['action'] == "edit")
                    {
                    global $wpdb;
                    $blogs = $wpdb->get_results("SELECT * FROM `wp_randfb`",ARRAY_A);

                    if ($blogs)
                        {
                        echo '
                        <br/><table class="widefat post fixed" cellspacing="0">
                        <thead>
                        <tr>
                        <th scope="col" class="manage-column column-title" style="">'.__("Blog Title:","randfriendb").'</th>
                        <th scope="col" class="manage-column column-author" style="">'.__("Blog URL:","randfriendb").'</th>
                        <th scope="col" class="manage-column column-categories" style="">'.__("Description:","randfriendb").'</th>
                        <th scope="col" class="manage-column column-tags" style="">'.__("Delete","randfriendb").'</th>
                        </tr>
                        </thead>
                        <tbody>
                        ';
                        foreach($blogs as $blog){
                        echo '<tr id="post-1" class="alternate author-self status-publish iedit" valign="top">
                        <td>'.$blog['blog_title'].'</td>';
                        echo '<td>'.$blog['blog_url'].'</td>';
                        echo '<td>'.$blog['blog_desc'].'</td>';
                        echo '<td><a href="admin.php?page=randfriendb/randfriendb.php&action=del&id='.$blog[id].'">'.__("Delete","randfriendb").'</a></td></tr>';
                        }
                        echo '  <tfoot>
                                <tr >
                                    <th colspan="4"></th>
                                </tr>
                                </tfoot>
                                </table>';
                        }else{
                        echo '<h3>'.__("No found new blogs","randfriendb").'</h3>';
                        }


                    }elseif($_GET['action'] == "del")
                        {
                        global $wpdb;
                        $id = intval($_GET['id']);
                        $del = $wpdb->query("DELETE FROM `wp_randfb` WHERE id='" . $id . "'");
                        if ($del)
                            {
                            echo '<div class="wrap"><h2>'.__("The blog is deleted","randfriendb").'</h2></div><br />'.__("Please waith ...","randfriendb");
                            echo '<META HTTP-EQUIV="refresh" CONTENT="1; URL=admin.php?page=randfriendb/randfriendb.php&action=edit">';
                            }else{
                            echo '<div class="wrap"><h2>'.__("Error","randfriendb").'</h2></div><br />';
                            }

                        }elseif($_GET['action'] == "insert")
                            {
                            if(empty($_POST['blog_title']) || empty($_POST['blog_url']) || empty($_POST['blog_desc']))
                                {
                                echo '<h2>'.__("Please write the information","randfriendb").'</h2>';
                                }else{
                                global $wpdb;
                                $insert = $wpdb->query("INSERT INTO `wp_randfb` VALUES(NULL,'" . $_POST['blog_title'] . "','" . $_POST['blog_url'] . "','" . $_POST['blog_desc'] . "')");
                                if ($insert)
                                    {
                                    echo '<div class="wrap"><h2>'.__("The blog is added","randfriendb").'</h2></div><br />'.__("Please wait ...","randfriendb");
                                    echo '<META HTTP-EQUIV="refresh" CONTENT="1; URL=admin.php?page=randfriendb/randfriendb.php&action=edit">';
                                    }else{
                                    echo '<div class="wrap"><h2>'.__("Error","randfriendb").'</h2></div><br />';                                    
                                    }

                                }

                            }



            }



    }   
function randfriendb_add_admin() {
add_menu_page(__("Friend Blogs","randfriendb"),__("Friend Blogs","randfriendb"), 8, __FILE__, "randfriendb_admin");
add_submenu_page(__FILE__, __("New Blog","randfriendb"), __("New Blog","randfriendb"), 8,__FILE__ , "randfriendb_admin");
add_submenu_page(__FILE__, __("Control","randfriendb"), __("Control","randfriendb"), 8, __FILE__ ."&action=edit", "randfriendb_admin");
}
add_action('admin_menu', 'randfriendb_add_admin');  
 function randfriendb_main($args)
    {
    extract($args);
    global $wpdb;
    $get_blogs = $wpdb->get_results("SELECT * FROM `wp_randfb` order by rand() limit 0,1",ARRAY_A);
    foreach($get_blogs as $get_blog){
    echo $before_widget;
    echo $before_title;
     _e("Friend Blogs","randfriendb");
     echo $after_title;
    echo '<a href="'.$get_blog['blog_url'].'">'.$get_blog['blog_title'].'</a><p>'.$get_blog['blog_desc'].'</p>'.$after_widget;
    }
    }


    register_sidebar_widget(__("Friend Blogs开发者_高级运维","randfriendb"),'randfriendb_main');





?>


After looking at your code and the screenshot I noticed you're using short tags <?. Your server may not have this enabled, hence why your code is spilling out all over your page. Try <?php instead.

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