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This article mainly introduces "how to achieve php jq jquery getJSON cross-domain submission of data", in daily operation, I believe many people have doubts on how to achieve php jq jquery getJSON cross-domain submission of data, Xiaobian consulted all kinds of information, sorted out simple and easy to use operation methods, hope to answer "how to achieve php jq jquery getJSON cross-domain submission of data" doubts helpful! Next, please follow the small series to learn together!

Front end requester:

The copy code is as follows:

$(function() { $.getJSON('http://test.com/aa.php? callback=? ',{classid:1,num:2},function(json){ alert(json.key); }); });

Requested end:

The copy code is as follows:

$classid=$_GET['classid'];

$num=$_GET['num'];

if($classid&&$num){$results = array("key" => "value"); echo $_GET['callback'] . '(' . json_encode($results) . ')'; }

The key is callback This variable in the output json data to bring callbak, the value consistent can getJSON success, otherwise will not execute any operation in function(json) {…}

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