AJAX请求从Wordpress中的服务器获取文本

Question

脚本，该脚本将使用AJAX请求显示文本“ Hello World”，以从服务器获取文本。

Answer 1

function hello_world_two_pages() {
    add_options_page('Hello World 2', 'Hello World 2', 'manage_options', 'helloworld2', 'hello_world_two');
}
add_action('admin_menu', 'hello_world_two_pages');


function hello_world_two() {
    $nonce = wp_create_nonce( 'helloworld' );
    ?>
<script  type='text/javascript'>
<!--
// When the document loads do everything inside here ...
jQuery(document).ready(function(){
    jQuery.ajax({
        type: "post",url: "admin-ajax.php",data: { action: 'gethello', _ajax_nonce: '<?php echo $nonce; ?>' },
        beforeSend: function() {jQuery("#loading").show("slow");}, //show loading just when link is clicked
        complete: function() { jQuery("#loading").hide("fast");}, //stop showing loading when the process is complete
        success: function(html){ //so, if data is retrieved, store it in html
            jQuery("#helloworld").html(html); //show the html inside helloworld div
            jQuery("#helloworld").show("slow"); //animation
        }
    }); //close jQuery.ajax(
})
-->
</script>
<div class="wrap">
<div id='loading'>LOADING!</div>
<div id='helloworld'></div>
</div><?php
}

function get_hello_ajax() {
    check_ajax_referer( "helloworld" );
    ?>Hello World!<?php
    die();
}
add_action( 'wp_ajax_gethello', 'get_hello_ajax' );