=== ajax-extend === Contributors: sunjanle Tags: ajax, AJAX, Ajax, javascript, plugins, functions, core functions, plugin functions Requires at least: 3.1 Tested up to: 3.2.1 Stable tag: 1.0 'ajax-extend' allows you call functions, a function in one plugin or a function you write or even a core wordpress function, via Ajax, in the easiest way. == Description == ajax-extend allows you call functions, a function in one plugin or a function you write or even a core wordpress function, via Ajax, in the easiest way. Example: The javascript code:

$j.ajax( {
    url : home_url,
    type : 'POST',
    dataType : 'html',
    data : {
        'ajax_extend_mark' : 1, /* this is indispensable if you want ajax-extend to call the function you need. */
        'ajax_extend_action' : 'my_function', /* the function name (a WP core function, or a function in one plugin. any functions loaded by wp()) */
        'name' : 'sunjianle',
    },
    success : function(data, textStatus, errorThron) {
        alert(data);
    }
});

The background PHP code:

function my_function()
{
    $name = $_POST["name"];
    echo "Hello, " . $name;

    global $wpdb;
    $query_sql = "select user_login
                from wp_users
                limit 0,10";
    $users = $wpdb->get_results($wpdb->prepare($query_sql));
    foreach($users as $user){
        echo $users->user_login;
    }
}

== Installation == Automatic install: Using the WordPress dashboard * Login to your weblog * Go to Plugins * Select Add New * Search for ajax-extend * Select Install * Select Install Now * Select Activate Plugin Manual: * Upload "ajax-extend" folder to the "/wp-content/plugins/" directory. * Activate the plugin through the "Plugins" menu in WordPress. == Frequently Asked Questions == = How to do with ajax-extend? = The javascript code:

$j.ajax( {
    url : home_url,
    type : 'POST',
    dataType : 'html',
    data : {
        'ajax_extend_mark' : 1, /* this is indispensable if you want ajax-extend to call the function you need. */
        'ajax_extend_action' : 'my_function', /* the function name (a WP core function, or a function in one plugin. any functions loaded by wp()) */
        'name' : 'sunjianle',
    },
    success : function(data, textStatus, errorThron) {
        alert(data);
    }
});

The background PHP code:

function my_function()
{
    $name = $_POST["name"];
    echo "Hello, " . $name;

    global $wpdb;
    $query_sql = "select user_login
                from wp_users
                limit 0,10";
    $users = $wpdb->get_results($wpdb->prepare($query_sql));
    foreach($users as $user){
        echo $users->user_login;
    }
}

= How can I test if ajax-extend is working? = = How does ajax-extend work? =

add_action( "wp", "ajax_operation" );

function ajax_operation()
{
    /*
     * ajax_extend_mark : 
     * ajax_extend_action :
     */
    if(isset($_REQUEST["ajax_extend_mark"]))
    {
        $function_name = $_REQUEST["ajax_extend_action"];
        if(!function_exists($function_name))
            return;
        call_user_func($function_name);
        die();
    }    
}

That is the core code and the all code of ajax-extend. What you need to understand the code above. = Are there any limitations to which functions I can use? = Yes. 1. Functions must return valid HTML - this will be called in php and returned via the Ajax call 2. Functions cannot accept any parameters (at least at the moment) == Changelog == = 1.0 = First release