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.

windows batchProcessing files

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"

PHP operating mode

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.exe

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 execution code

<?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.

Create task plan

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!

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Sample code sharing of php scheduled tasks

How does php implement scheduled execution of scheduled tasks?

Principle Analysis of PHP Implementation of Planned Tasks

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