//一、获取当前时间戳 方法1：通过time函数 1 time(); 方法2：通过$_SERVER中的REQUEST_TIME元素 $_SERVER['REQUEST_TIME']; 方法3:通过strtotime函数 strtotime('now')); 二、获取当前时间 通过date函数格式化时间戳 1 echo date('Y-m-d h:i:s', time()); // 2016-12-31 05:07:05
date_default_timezone_set('PRC'); //默认时区
echo "今天:",date("Y-m-d",time()),"<br>";
echo "今天:",date("Y-m-d",strtotime("18 june 2008")),"<br>";
echo "昨天:",date("Y-m-d",strtotime("-1 day")), "<br>";
echo "明天:",date("Y-m-d",strtotime("+1 day")), "<br>";
echo "一周后:",date("Y-m-d",strtotime("+1 week")), "<br>";
echo "一周零两天四小时两秒后:",date("Y-m-d G:H:s",strtotime("+1 week 2 days 4 hours 2 seconds")), "<br>";
echo "下个星期四:",date("Y-m-d",strtotime("next Thursday")), "<br>";
echo "上个周一:".date("Y-m-d",strtotime("last Monday"))."<br>";
echo "一个月前:".date("Y-m-d",strtotime("last month"))."<br>";
echo "一个月后:".date("Y-m-d",strtotime("+1 month"))."<br>";
echo "十年后:".date("Y-m-d",strtotime("+10 year"))."<br>";
jquery.min.js <tr> <td style="width:13%; text-align: right;"> <label >姓名 </label> </td> <td style="width:87%;"> <input type="text" name="username" value="" id="User_username" onkeyup="this.value=this.value.replace(/\s+/g,'')" placeholder="4-15位用户名"/> <span class="uer_class"></span> </td> </tr>
js部分 <script type="text/javascript" src="PUBLIC/js/jquery.min.js"></script> <script type="text/javascript"> $(function (){ var user_Boolean = false; $("#User_username").blur(function (){ var name = $("#User_username").val(); if(name != ''){ var url ='checknm'; var data ={"name":name}; var success =function (response){ if(response.error == 0){ $('.uer_class').html("已经存在用户").css("color","red"); user_Boolean = false; } if(response.error == 1){ $('.uer_class').html("✔可以使用").css("color","green"); user_Boolean = true; } } $.post(url,data,success,"json"); }else{ $('.uer_class').html("请输入用户名").css("color","red"); user_Boolean = false; } });
$('.red_button').click(function(){
if(user_Boolean == true){
alert("注册成功");
$("form").submit();
}else {
alert("请完善信息");
}
});
});
</script>
php后台部分
function checknm($name){
$info = D('user')->where("user_name ='$name'")->find();
if($info){
$response = array(
'error'=>0,
'errmsg'=>'用户已经存在',
'data' =>false
);
}else{
$response = array(
'error'=>1,
'errmsg'=>'可以使用',
'data' =>true
);
}
echo json_encode($response);
}
