L'appel Ajax renvoie toujours 0

Pourriez-vousplacer l'action (ajaxConversion) dans vos donnéeset vérifier?

 jQuery.ajax({
  type:"POST",
  url: ajaxurl,
  data: {
      action: "ajaxConversion",
      amount: amountToConvert
  },
  success:function(data){
  alert(data);
  },
  error: function(errorThrown){
      alert(errorThrown);
  } 

});
 

Could you place the action (ajaxConversion) in your Data and check?

jQuery.ajax({
  type:"POST",
  url: ajaxurl,
  data: {
      action: "ajaxConversion",
      amount: amountToConvert
  },
  success:function(data){
  alert(data);
  },
  error: function(errorThrown){
      alert(errorThrown);
  } 

});

L'utilisation de wp_die(); à lafin de lafonction AJAX a résolu leproblèmepourmoi.

parexemple

 add_action( 'wp_ajax_my_ajax_function', 'my_ajax_function' );

function my_ajax_function(){      
    echo json_encode($myvar);
    wp_die(); 
}
 

using wp_die(); at the end of AJAX function fixed the issue for me.

e.g

add_action( 'wp_ajax_my_ajax_function', 'my_ajax_function' );

function my_ajax_function(){      
    echo json_encode($myvar);
    wp_die(); 
}

Pourmoi,l'astuce était d'ajouter l'action wp_ajax_nopriv.J'aitesté le script sur unnavigateur lorsquej'étais connecté à l'administrateur WP,puisj'aiessayé lemême script dans Chromeet j'ai réalisé que le scriptne fonctionnaitpas.Après avoirmis wp_ajax_nopriv,tout a commencé àfonctionner.:)

 add_action( 'wp_ajax_nopriv_erase_uploaded_images', 'erase_uploaded_images' );
add_action( 'wp_ajax_erase_uploaded_images', 'erase_uploaded_images' );

function erase_uploaded_images() {
    $attach_id = filter_input( INPUT_POST, 'attach_id' );
    wp_delete_attachment( $attach_id );
    if ( isset( $_SESSION['uploaded_images'] ) ) {
        $array_attachments = $_SESSION['uploaded_images'];
        if ( ( $key = array_search( $attach_id, $array_attachments ) ) !== false ) {
            unset( $array_attachments[$key] );
        }
        $_SESSION['uploaded_images'] = $array_attachments;
    }
    wp_die();
}
 

For me the trick was to add wp_ajax_nopriv action. I tested the script on one browser when I was logged in WP admin, and then I tried same script in Chrome and realized that the script doesn't work. After I put wp_ajax_nopriv, everything started to work. :)

add_action( 'wp_ajax_nopriv_erase_uploaded_images', 'erase_uploaded_images' );
add_action( 'wp_ajax_erase_uploaded_images', 'erase_uploaded_images' );

function erase_uploaded_images() {
    $attach_id = filter_input( INPUT_POST, 'attach_id' );
    wp_delete_attachment( $attach_id );
    if ( isset( $_SESSION['uploaded_images'] ) ) {
        $array_attachments = $_SESSION['uploaded_images'];
        if ( ( $key = array_search( $attach_id, $array_attachments ) ) !== false ) {
            unset( $array_attachments[$key] );
        }
        $_SESSION['uploaded_images'] = $array_attachments;
    }
    wp_die();
}

Je recommande d'utiliser wp_send_json_success () et wp_send_json_error () côté serveur. Vousn'avezpas à vous soucier de die ()etcet la variable "status"estenvoyée automatiquement,c'estbeaucouppluspropre de cettefaçon. Parexemple

 function ajaxConversion(){
    // ...
    wp_send_json_success(array(
      'amount' => $amount
    ));
}
 

Cela aboutira à quelque chose comme ceci:

 {
 "success":true,
 "data":{"amount":125}
}
 

Vouspouvez doncextrairefacilement les valeurs de votre appel ajax:

 jQuery.ajax({
    type       : 'post',
    data       : {
                  action: 'ajaxConversion', 
                  //nonce : ajax.nonce                              
                 },
    dataType   : 'json',
    url        : ajax.ajaxurl,
    success    : function(data){
         if(data.success) {
            alert(data.amount);                         
         } else {
            alert(data.data.message);
         }

    }
}); 
 

Une autre chose courante quej'ai rencontrée sont lesfautes defrappe dans lenom de l'action. Ils doivent être wp_ajax_nopriv_ {action} ou wp_ajax_ {action} unefois connecté. Parexemple,wp-ajax_nopriv,en est un quej'aifaitplusieursfois dans lepassé.

I would recommend using wp_send_json_success() and wp_send_json_error() on server side. You don't need to worry about die() etc and the "status" variable is sent automatically, it's much cleaner this way. For example

function ajaxConversion(){
    // ...
    wp_send_json_success(array(
      'amount' => $amount
    ));
}

Will result in something like this:

{
 "success":true,
 "data":{"amount":125}
}

So then you can do easily extract the values in your ajax call:

jQuery.ajax({
    type       : 'post',
    data       : {
                  action: 'ajaxConversion', 
                  //nonce : ajax.nonce                              
                 },
    dataType   : 'json',
    url        : ajax.ajaxurl,
    success    : function(data){
         if(data.success) {
            alert(data.amount);                         
         } else {
            alert(data.data.message);
         }

    }
}); 

Another common thing i've ran into are typos in the action name. They should be wp_ajax_nopriv_{action} or wp_ajax_{action} when logged in. For example, wp-ajax_nopriv, is one I've done several times in the past.

Pourmoi,c'était lefait quej'utilisais return au lieu de echo dansmafonction PHP.Le changeren echo l'a corrigé.

 function doAjax() {
    $result = getPosts();
    echo json_encode($result, true);
    die();
}
 

For me it was the fact that I was using return instead of echo in my PHP function. Changing it to echo fixed it.

function doAjax() {
    $result = getPosts();
    echo json_encode($result, true);
    die();
}