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This article mainly introduces how to use the ignore_user_abort function, which has certain reference value. Interested friends can refer to it. I hope you will have a lot of gains after reading this article. Let Xiaobian take you to understand it together.

The ignore_user_abort() function sets whether disconnecting from the client terminates script execution. This function returns the previous value of the user-abort setting (a Boolean value).

ignore_user_abort() function syntax

ignore_user_abort(setting)

parameter description

setting

Optional. If set to true, disconnects from users are ignored, and if set to false, causes scripts to stop running.

If this parameter is not set, the current setting is returned.

Tips and comments

Note: PHP does not detect if the user has disconnected until it attempts to send a message to the client. Simply using the echo statement does not ensure that information is sent; see flush() function.

Use of ignore_user_abort function in php

The ignore_user_abort function in PHP is that the script does not stop executing after the user turns off the terminal. It can be used to implement scheduled tasks and continuous processes. The following will discuss the role and usage of the ignore_user_abort () function through examples.

ignore_user_abort () can be implemented when the client is closed can still execute PHP code, can keep PHP process has been executed, can achieve the so-called scheduled task function and continuous process, only need to open the execution script, unless apache and other servers restart or script output, the PHP script will always be in the state of execution, at first glance very practical, but at the cost of a PHP script execution process, expensive, but can achieve a lot of unexpected features.

This is described as setting whether disconnecting from the client terminates script execution.

1. Function prototype

intignore_user_abort（[boolsetting]）

Second, version compatibility

PHP3>=3.0.7,PHP4,PHP5

III. Basic usage and examples of functions

1. Basic usage of functions

Description: Calling the ignore_user_abort () function declares that execution of the script will not be terminated even if the client disconnects.

2, combined with set_time_limit () function to implement a loop script to perform tasks

Description: Cycle execution every 15 minutes

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