Home >Backend Development >PHP Tutorial >PHP implements code and extensions for scheduled execution of Windows tasks (picture)
Task planning is of great use in our daily work development. Sometimes projects require large batches of data updatesInsert data into the libraryIn order to save resources, we need to automatically perform regular time periods Calculation, for this, we need PHP scheduled tasks to be implemented, so today we will introduce to you PHP to implement scheduled execution of Windows task plans!
In addition, after looking for a solution to this similar problem on the Internet, you can also use PHP's ignore_user_abort() function. This function has not been used yet. The official PHP website introduces it like this
int ignore_user_abort ([ string $value ] )
Set whether to interrupt the execution of the script when the client disconnects. When PHP is executed as a command line script, when the script terminal ends, the script will not be terminated immediately. Unless the value is set to TRUE, otherwise the script will output any characters. was aborted.
My personal understanding is that when executed not through the browser, but through the command line, the code block of this function continues to execute. In this blog post, there is a specific implementation process of this function.
The following is an example for testing.
Create a new text document, write the following code, and save it as a .bat file.
E: "E:\PHP\wamp\bin\php\php5.5.12\php.exe" -f "E:\PHP\wamp\www\write.php"
Usually executing PHP code is executed through the browser requesting the server. This operating mode is called module mode. The module mode is integrated in the form of mod_php5 module. At this time, the function of mod_php5 module is to receive PHP file requests passed by Apache, process these requests, and then return the processed results to Apache. If we configure the PHP module (mod_php5) in its config file before Apache starts, the PHP module registers the ap_hook_post_config hook of apache2 and starts this module when Apache starts to accept requests for PHP files.
When we use php.exe to execute, it is the CLI mode. This blog post explains in detail the four operating modes of PHP.
PHP command line execution program php.exe is very powerful. Configure the value of system variablepath under windows environment You can run the php script file directly in the DOS window interface. This article has specific configuration methods.
The php.exe here is one of the three php-related exe files in the php installation directory, php-cgi.exe, php-win.exe
php- cgi.exe is provided for CGI use. It is usually used to parse PHP scripts through CGI in a Windows environment. It is often used to run PHP websites under IIS. The difference is that before all the contents of the file are output, the following will be automatically output. The HTTP header
X-Powered-By: PHP/5.2.5Content-type: text/html
php-win.exe can also execute PHP files. The difference is that the console is opened and the output content is not displayed. It can be used to write file processing, network service and other programs that do not require a display interface.
<?php$fp = @fopen("E:/PHP/wamp/www/test.txt", "a+");fwrite($fp, "自动播报时间:\n" . date("Y-m-d H:i:s"));fclose($fp);
The file path here must be absolute path, because it does not go through a server such as apache or iis, except for some server-based variables that cannot be used , such as $_SERVER, etc., and various unpredictable errors are likely to occur.
Baidu can produce a lot of them at once. I used Windows 7 for testing.
Start-》Accessories-》System Tools-》Task Scheduler
Double-click to create a task
Create a name and set execution permissions
Set the start time and repeat task interval
Select the written script Path
The task scheduler has been created here
The following is the effect of execution
Summary:
I believe many friends know how to use php to implement the execution of windows task plan. I hope it will be helpful to your work!
related suggestion:
The above is the detailed content of PHP implements code and extensions for scheduled execution of Windows tasks (picture). For more information, please follow other related articles on the PHP Chinese website!