Community Learn Tools Library Leisure
search
English
Home > Backend Development > PHP Tutorial > 此代码运作后为何会输出5

此代码运作后为何会输出5

WBOY
Release： 2016-06-13 12:36:30
Original
850 people have browsed it

此代码运行后为何会输出5?

<br />
$a = 1;<br />
$b = &$a;<br />
$c = (++$a) + ($a++);<br />
var_dump($c);<br />
Copy after login

为何会输出5?

Related labels：
amp dump nbsp var
source：php.cn
Previous article： 一些PHP面试标题 Next article： 使用PHP读取资料
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Latest Issues
function_exists() cannot determine the custom function Function test () {return true;} if (function_exists ('test')) {echo "test is function...
From 2024-04-29 11:01:01
0
2
1429
There is no output in the parent window document.onclick = function(){ window.opener.document.write('I am the output of the child ...
From 2024-04-18 23:52:34
0
1
1284
PX automatic conversion to REM error  <style>html {   font-size: calc(100vw / 3.75);      }...
From 2024-04-16 09:34:16
0
0
4687
Related Topics
More>
Popular Recommendations
Popular Tutorials
More>
Related Tutorials
Popular Recommendations
Latest courses
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template