从Ajax返回值[重复]

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                        <a href="/questions/14918462/get-response-from-php-file-using-ajax" dir="ltr">Get response from PHP file using AJAX</a>
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                                (5 answers)
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            <div class="grid--cell mb0 mt8">Closed <span title="2017-10-20 16:39:05Z" class="relativetime">2 years ago</span>.</div>
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I'm new to programming and i'm not good at all with Ajax.
I want to get a value back from a php script in Ajax.
I send a javascript variable to a php script like that :

 $('#deleteSelectedButton').on('click', function () {
    if (confirm('Do you want to suppress the messages ?')) {
        $.ajax({
            type: 'POST',
            url: 'suppression-message',
            data: {
                'checkboxIdArray': checkboxIdArray.toString(),
            }
        });
        return false;
    }
});  

This is sent to the following php script which is deleting messages according to the id contained in the checkboxIdArray:

if (isset($_POST['checkboxIdArray'])) {

    $checkboxIdArray = $_POST['checkboxIdArray'];
    $str = json_encode($checkboxIdArray);
    $tab = explode(",", $str);
    $deleteSuccess = true;

    foreach($tab as $id)
    {
        $id = filter_var($id, FILTER_SANITIZE_NUMBER_INT);
        if (!$messageModelDb->delete($id)) {
            $deleteSuccess = false;
            die();
        }
    }
    if ($deleteSuccess === true) {
        $message = 'Success';;
    } else {
        $message= "Error";
    }
}

I want to get the $message variable back to my javascript in order to display a message according to the result of the script.

I would really appreciate some help ...
Thank you.

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Answer 1

You have to use success function and actually include the message in the response

 $.ajax({
            type: 'POST',
            url: 'suppression-message',
            data: {
                'checkboxIdArray': checkboxIdArray.toString(),
            },
            success : function(response){
              // your code or logic
              alert(response);
            }
        });

PHP

if ($deleteSuccess === true) {
    $message = 'Success';
} else {
    $message= "Error";
}
echo $message;