Wordpress使用Wordpress将Ajax值传递到特定页面
我想将变量传递到特定页面。我找到了一个简单的示例,解释了如何在Wordpress中使用Ajax。
jQuery(document).ready(function($) {// We'll pass this variable to the PHP function example_ajax_request
var fruit = 'Banana';
// This does the ajax request
$.ajax({
url: ajaxurl,
data: {
'action':'example_ajax_request',
'fruit' : fruit
},
success:function(data) {
// This outputs the result of the ajax request
console.log(data);
},
error: function(errorThrown){
console.log(errorThrown);
}
});
});
function example_ajax_request() {// The $_REQUEST contains all the data sent via ajax
if ( isset($_REQUEST) ) {
$fruit = $_REQUEST['fruit'];
// Let's take the data that was sent and do something with it
if ( $fruit == 'Banana' ) {
$fruit = 'Apple';
}
// Now we'll return it to the javascript function
// Anything outputted will be returned in the response
echo $fruit;
// If you're debugging, it might be useful to see what was sent in the $_REQUEST
// print_r($_REQUEST);
}
// Always die in functions echoing ajax content
die();
}
add_action( 'wp_ajax_example_ajax_request', 'example_ajax_request' );
wp_localize_script( 'ajax-script', 'ajax_object', array( 'ajax_url' => admin_url( 'admin-ajax.php' ) ) );
不幸的是我不能传递变量。我检查了代码,并得到以下错误:
Error: ajax_object is not defined
您是否知道另一种获得相同结果的方法?
回答:
您距离很近,但缺少一些小东西……
我在评论中的意思是,您需要'ajax-script'
在两种情况下都使用这种方式:
add_action('wp_enqueue_scripts', 'add_js_scripts'); add_js_scripts(){
wp_enqueue_script( 'ajax-script', get_template_directory_uri().'/js/script.js', array('jquery'), '1.0', true );
wp_localize_script( 'ajax-script', 'ajax_object', array( 'ajaxurl' => admin_url( 'admin-ajax.php' ) ) );
}
更改 为
function example_ajax_request() { // The $_REQUEST contains all the data sent via ajax
if ( isset($_POST) ) {
$fruit = $_POST['fruit'];
// Let's take the data that was sent and do something with it
if ( $fruit == 'Banana' ) {
$fruit = 'Apple';
}
// Now we'll return it to the javascript function
// Anything outputted will be returned in the response
echo $fruit;
// If you're debugging, it might be useful to see what was sent in the $_POST
// print_r($_POST);
}
// Always die in functions echoing ajax content
die();
}
新增add_action( 'wp_ajax_nopriv_ … )
add_action( 'wp_ajax_nopriv_example_ajax_request', 'example_ajax_request' ); // <= this oneadd_action( 'wp_ajax_example_ajax_request', 'example_ajax_request' );
对于您的jQuery脚本script.js
文件,有2件重要的遗漏小事情:
jQuery(document).ready(function($) { /* We'll pass this variable to the PHP function example_ajax_request */
var fruit = 'Banana';
/* This does the ajax request */
$.ajax({
url: ajax_object.ajaxurl, /* <====== missing here */
type : 'post', /* <========== and missing here */
data: {
'action':'example_ajax_request',
'fruit' : fruit
},
success:function(data) {
/* This outputs the result of the ajax request */
console.log(data);
},
error: function(errorThrown){
console.log(errorThrown);
}
});
});
现在应该可以工作了……
参考文献:
在没有插件的情况下在WordPress网站上将AJAX与PHP结合使用
如何在WordPress插件或主题中使用Ajax?
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