which one is executed first
Question
I have a web application in php, I don't know which one will be ever called an processed first,
In my php file, I also have a javascript code
<script> $(document).ready(function(){}); </script>
In my php code, I will send an array object into that javascript. So I wonder why the php code is executed first instead of the javascript ? Does it mean that all server code will always be executed before the client script runs during the browser view is shown.
4 answers
solution1
2 2012-09-15 14:38:29
首先执行服务器端代码，并将服务器端生成的输出发送回执行客户端代码的客户端。
solution2
0 ACCPTED 2012-09-15 14:37:39
Yes, normally, the whole server processing finished before the page is delivered to the browser. At this moment, JavaScript execution starts.
You can add late execution of PHP code using AJAX.
solution3
0 2012-09-15 14:39:06
当然，服务器代码（无论是PHP，ASP，JSP等）首先在服务器中运行，它生成一个包含您的javascript代码的html页面，您的计算机接收此页面，在浏览器中呈现它并运行javascript in它。
solution4
0 2016-01-17 14:58:46
if you have html,php,js in a single file you should know these two things only:
1)your file extension must be .php (because php execution required .php extension)
2)you will see the output exactly in the same order as you typed in your file.
<html>
<body>
<?php
echo "i m php upper"."</br>";
?>
<p id="pg">i am html upper</br></p>
<script type="text/javascript">
document.write(" i am javascript upper</br>");
</script>
<?php
echo "i m php bottem"."</br>";
?>
<script type="text/javascript">
document.write(" i am javascript bottom</br>");
</script>
<p id="pg">i am html bottem</br></p>
</body>
</html>
im php upper
i am html upper
i am javascript upper
im php bottem
i am javascript bottom
i am html bottem
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.