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This article introduces the usage of usleep() function in PHP. Friends who need it can refer to it.
Definition and usage usleep() function delays code execution for a number of microseconds. Grammar usleep(microseconds) Parameter Description microseconds required. Pause time in microseconds. Return value No return value. Tips and Notes Note: Before PHP 5, this function did not work on Windows systems. Note: One microsecond is equal to one millionth of a second. For example:
<?php
echo date('h:i:s') . "<br />";
//延迟 10 描述
usleep(10000000);
//再次开始
echo date('h:i:s');
?>Copy after login Output: 09:23:14 09:23:24 |
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