time - php 的for循环是异步执行的吗?
<code>代码如下:我在php的控制器里设置了两个计时器,想看代码执行的时间,然后出现的问题是,所有输出的时间都是相同的,也就是$starttime,$endtime和$cirtime都是相同的。难道整个循环体在1毫秒内就执行完毕了吗?还是我代码写的有问题?</code>
public function addHotspot(){
<code> $starttime=time(); $mHotspot = M("hotspot"); for ($i=1; $iadd($hotspot); $cirtime=time(); } $endtime=time(); $timestrip=$endtime-$starttime; $result["result"]=true; $result["starttime"]=$starttime; $result["endtime"]=$endtime; $result["timestrip"]=$timestrip; $result["cirtime"]=$cirtime; $this->ajaxReturn (json_encode($result),'JSON'); }</code>
回复内容:
<code>代码如下:我在php的控制器里设置了两个计时器,想看代码执行的时间,然后出现的问题是,所有输出的时间都是相同的,也就是$starttime,$endtime和$cirtime都是相同的。难道整个循环体在1毫秒内就执行完毕了吗?还是我代码写的有问题?</code>
public function addHotspot(){
<code> $starttime=time(); $mHotspot = M("hotspot"); for ($i=1; $iadd($hotspot); $cirtime=time(); } $endtime=time(); $timestrip=$endtime-$starttime; $result["result"]=true; $result["starttime"]=$starttime; $result["endtime"]=$endtime; $result["timestrip"]=$timestrip; $result["cirtime"]=$cirtime; $this->ajaxReturn (json_encode($result),'JSON'); }</code>
不是
PHP 的 time()
单位是秒,1秒内循环一万次不是很正常么……要返回毫秒的话请用 microtime()
肯定不是异步
不晓得你在说什么
代码也有问题,那个for循环没有意义啊,不停的赋相同的值
php没有异步,而且for在js里面也不是异步的。ps:js里最简单判断是否异步只需要在回调函数里console.log this如果this是window就证明这一步是异步的
看你这段代码是循环写数据库,这个习惯可不好

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