How to use php sleep

In PHP, the sleep function is used to pause the execution of a script for a specified period of time. Basic usage: "sleep(5); // Pause the execution of the script for 5 seconds".

In PHP, the sleep function is used to pause the execution of a script for a specified period of time. The usage of the sleep function is as follows:

1. Basic usage: sleep(seconds), where seconds is the pause time in seconds.

sleep(5); // 暂停脚本的执行5秒

2. Combined with timestamp: You can use the time function to obtain the current timestamp, and combine it with the sleep function to pause the execution of the script based on the timestamp.

$timestamp = time(); // 获取当前时间戳
$targetTimestamp = strtotime('2022-01-01 00:00:00'); // 获取目标时间戳
$delay = $targetTimestamp - $timestamp; // 计算时间差
sleep($delay); // 暂停脚本的执行，直到目标时间

3. Combined with loops: You can use loops combined with the sleep function to execute a certain piece of code regularly.

for ($i = 0; $i < 5; $i++) {
// 执行某段代码
sleep(1); // 暂停1秒
}

It should be noted that the sleep function will block the execution of the current script and will not continue to execute subsequent code until the pause time is over.

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