日期:2014-05-16 浏览次数:20727 次
<html> <head> <script language="javascript" src="myAJAXlib.js"></script> <script language="javascript"> function cback(text){ alert(text); } </script> </head> <body> <form name="form1"> <input type="button" value="test" onclick="doAjax('libtest.php','param=hello','cback','get','0')"> </body> </html>
function createREQ(){ var req=false; try{ req=new XMLHttpRequest(); } catch(err1) { try{ req=new ActiveXObject("Msxml2.XMLHTTP"); } catch(err2) { try{ req=new ActiveXObject("Microsoft.XMLHTTP"); } catch(err3) { req=false; } } } return req; } function requestGET(url,query,req){ myRand=parseInt(Math.random()*99999); req.open("GET",url+'?'+query+'&rand='+myRand,true); req.send(null); } function requestPOST(url,query,req){ req.open("POST",url,true); req.setRequestHeader('Content-Type','application.x-www-form-urlencoded'); req.send(query); } function doCallback(callback,item){ eval(callback+'(item)'); } function doAjax(url,query,callback,reqtype,getxml){ var myreq=createREQ(); myreq.onreadystatechange=function(){ if(myreq.readyState==4){ if(myreq.status==200){ var item=myreq.responseText; if(getxml==1){ item=myreq.responseXML; } doCallback(callback,item); } } } if(reqtype=='post'){ requestPOST(url,query,myreq); } else{ requestGET(url,query,myreq); } }
<?php echo "Parameter value was".$param; ?>