Echo Json_encode Returns a JSON object, but instead of a JSON object, it gets a string in the front-end

Front end use code to submit and process subsequent results

Function del (ID) {      if (Confirm (' Confirm to delete this keyword? ') {$.post ('./keyword ', {op: ' del ', Id:id},function (Result) {alert (result);//Normal This part should show Object:object, But now the display is a string if (Result.code! = 0) {alert ("Delete failed! ");} Else{location.reload ();}});}}

The service side uses the following code to return

echo Json_encode (Array ("code" =>0)); exit;

Normally in front of the alert result this variable should be shown as object:object, but this JSON string is now displayed.

Reply to discussion (solution)

$.post ('./keyword ', {op: ' del ', Id:id},function (Result) {...}, ' json ');

Function del (ID) {      if (Confirm (' Confirm to delete this keyword? ') {$.post ('./keyword ', {op: ' del ', Id:id},function (Result) {alert (result);//Normal This part should show Object:object, But now the display is a string if (Result.code! = 0) {alert ("Delete failed! ");} Else{location.reload ();}}, "JSON");}}

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