ajax在php中应用实例
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<html><meta http-equiv="Content-Type" content="text/html;charset=utf-8"><script type="application/javascript" src="../js/jquery-1.7.2.js"></script><script type="application/javascript">$(document).ready(function(){$("#ajaxBut").click(function(){$.ajax({'type':'get','url':'test4.php','dateType':'json','data':$("input").serialize(),'success':function(ret){alert(ret);}});});$("#getBut").click(function(){$.get("test4.php",$("input").serialize(),function(ret){alert(ret);});});$("#postBut").click(function(){$.post("test5.php",$("input").serialize(),function(ret){alert(ret);});});$("#jsonBut").click(function(){$.getJSON("test4.php",$("input").serialize(),function(ret){alert(ret);});});});</script><body><form><h1>user Login</h1>username:<input type="text" name="user" id="user" /><br/>password:<input type="password" name="password" id="password"/><br/><input type="button" name="but" id = "ajaxBut" value="ajaxLogin" /><input type="button" name="but" id = "postBut" value="postLogin" /><input type="button" name="but" id = "getBut" value="getLogin" /><input type="button" name="but" id = "jsonBut" value="jsonLogin" /></form></body></html>
$username = $_GET['user'];$password = $_GET['password'];$ret = "fail";if($username == 'zhangsan' && $password == '123'){$ret = "success";}echo json_encode($ret);
$username = $_POST['user'];$password = $_POST['password'];$ret = "fail";if($username == 'zhangsan' && $password == '123'){$ret = "success";}echo json_encode($ret);
$.getJSON("http://www.ganji.com/test6.php?callback=?", $("input").serialize() , function(data){if(data){console.log(data);}});
$str = 'OK';$callback = $_GET('callback');if (!empty($callback)) {header("content-type: application/x-javascript; charset=UTF-8");echo $callback . '(' . $str . ')';} else {echo $str;}}
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