Implement timer function with PHP

Previously only know with JS can realize the timer function, and very convenient, but today to do the project to achieve a functional module, to do some of the parts, I thought if you can realize a timer function through PHP, and then found on the Internet, find with Gnore_user_ The abort () function works with the Set_time_limit () function and a dead loop to achieve similar functionality. Although the project eventually did not use the function, but felt that the potential value is still very high, and then refer to some of the online information, organized as follows:

 
                                                
The above describes the use of PHP to implement the timer function, including the aspects of the content, I hope that the PHP tutorial interested in a friend helpful.
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