How to use php sleep method

In PHP, the sleep method is used to delay code execution for a number of seconds. Its syntax is "sleep(seconds)". The parameter "seconds" represents the pause time in seconds; if the specified description "seconds" is Negative number, this function will generate an "E_WARNING" error.

The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

PHP sleep() Function

Definition and usage

sleep() function delays code execution for a number of seconds.

Syntax

sleep(seconds)

Parameters

seconds Required. Pause time in seconds.

Return value

If successful, return 0, otherwise return false.

Errors/Exceptions

If the specified description seconds is a negative number, this function will generate an E_WARNING error.

Example

<?php
echo date(&#39;h:i:s&#39;) . "<br />";
//暂停 10 秒
sleep(10);
//重新开始
echo date(&#39;h:i:s&#39;);
?>

Output:

12:00:08
12:00:18

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