Community Learn Tools Library Leisure
search
English
Home > Backend Development > PHP Tutorial > php页面函数设置超时限制的方法_php技巧

php页面函数设置超时限制的方法_php技巧

WBOY
Release： 2016-05-16 20:29:20
Original
1189 people have browsed it

本文实例讲述了php页面函数设置超时限制的方法。分享给大家供大家参考。具体方法如下：

碰到页面程序执行超时时会提醒Fatal error: Maximum execution time of 300 seconds exceeded 是因为程序执行时间超过了最大允许执行时间,解决办法我们总结了几个供大家选择.

对于函数我们可以常用下面方法,直接给函数设置超时时间来操作,代码如下:

复制代码 代码如下:
declare(ticks = 1);
    function a(){
    sleep(10);
    echo "a finishi ";
}
function b(){
    echo "Stop ";
}
function c(){
    usleep(100000);
}
 
function sig(){
    throw new Exception;
}
 
try{
    pcntl_alarm(1);
    pcntl_signal(SIGALRM, "sig");
    a();
    pcntl_alarm(0);
}catch(Exception $e){
    echo "timeout ";
}
b();
a();
b();

对于文件或程序代码可使用set_time_limit只是设置你的PHP程序的超时时间.
解决方法:

1.修改php.ini文件,代码如下:

复制代码 代码如下:
max_execution_time = 30; // Maximum execution time of each script, in seconds 原值30秒,你可以改大点.

改完后记得重启php,该方法改了后对所有程序生效.

2.修改你的程序,在你需要耗时超过默认值（30秒）的脚本中,加入代码:

复制代码 代码如下:
set_time_limit(300); // 最大执行时间这里设置300秒

设置成0表示不限时。

希望本文所述对大家的PHP程序设计有所帮助。

Related labels：
php function set up page
source：php.cn
Previous article：页面利用渐进式JPEG来提升用户体验度_php实例 Next article：php实现微信公众平台账号自定义菜单类_php技巧
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
PHP arrays obtained from URL parameters do not behave as expected I have a URL parameter that contains the category ID and I want to treat it as an array li...
From 2024-04-06 22:09:02
0
1
1428
Where should I place CustomLog directive in apache I'm using php:7.2-apachedocker. I need to disable health check url login access log. Based...
From 2024-04-06 22:03:59
0
1
990
What is the format of the variables in the return value? I am a new learner of php. I found a piece of code: if($x<time()){return[false,'error']...
From 2024-04-06 21:55:20
0
1
778
Problems encountered when using opentbs to generate odt files: values ​​of the same key are displayed in the same row instead of separate columns. I'm using a library called OpenTbs to create odt using PHP, I'm using it because columns a...
From 2024-04-06 20:18:18
0
1
483
Group MySQL results by ID for looping over I have a table with flight data in mysql. I'm writing a php code that will group and displ...
From 2024-04-06 17:27:56
0
1
406
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