dqq9695
dqq9695
2016-03-24 23:10

在javascript if语句中取消设置$ _POST

  • http-post
  • php
  • ajax
  • javascript
  • jquery

i need to unset $_POST['u'] but only inside a javascript function, now $_POST ARRAY unsets itself automatically after the page is ready...

function resetChat(cod_c){
            if(confirm('are you sure?')){

                if (sendReq.readyState == 4 || sendReq.readyState == 0) {
                    sendReq.open("POST", 'getChat.php?chat='+cod_c+'&last=' + lastMessage, true);
                    sendReq.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
                    sendReq.onreadystatechange = handleResetChat; 
                    var param = 'action=reset';
                    param += '&user=' + document.getElementById('cod_user').value;
                    sendReq.send(param);
                    document.getElementById('txt_message').value = '';

                }
            <?php  unset($_POST['u']); ?>  // this only 1 time after confirm???
            }                       
        }
function handleResetChat() {
        }   
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