douhanzhuo6905 2013-06-04 13:20 采纳率: 100%
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在Ajax中返回一个PHP变量?

I'm getting a variable inside my catch (for when a web service call fails) statement and attempting to use json_encode on it:

try {
    WebServices::create($this->nameWS);
}
catch (Exception $e) {                  
   $tr = $e->getTrace();
   $x = $tr[3];
   json_encode($x);                     
}

$x contains a string.

This catch statement sends me to the error section of my $.ajax:

$.ajax({
    type: 'POST',
    url: 'index.php',
    data: 'module=random&action=' + action + params,
    dataType: 'json',
    success: function(dataJson){
        callbackServer(action, otherVars, dataJson);
        callServer.isRun = false;
    },
    error : function(dataError) {
        console.log("I want to get the $x variable here");
    }
});

console.logging the dataError parameter returns a huge long list of rubbish, none of which is relevant to this variable.

I have seen it is possible to send a json_encoded variable to JS, but never inside an error block of an ajax return - is there an easy way to get this variable here? Thanks guys.

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  • dpwqicw157673 2013-06-04 13:51
    关注

    You need to echo json_encode($x) and send the correct response headers.

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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