php sleep

Recent encounters with large data volumes and fast updates have resulted in a slight delay in synchronization of two servers and a higher load. If using sleep to sleep 1 seconds every 10 seconds, would it relieve the pressure on the database? I'd

This article mainly introduces how to use the sleep function to implement scheduled task instances in PHP. This article provides multiple examples of using sleep. This article can also be used as a tutorial to learn the sleep function, if you need

PHP magic method _ sleep _ wakeup (4) ,__ sleep _ wakeup. PHP magic method _ sleep _ wakeup (4), __sleep _ wakeup serialize can serialize variables including objects and convert them into continuous bytes data. you can save the serialized variable

See this name, is not a very high-level feeling. Yes, the Magic method is really advanced. So, what is a magic method? The method, which begins with two underscores in PHP, is known as the "Magic Method" (Magic methods). such as __construct (),

Use sleep in PHP to cause MySQL read failure cases and workarounds, Sleepmysql Recently, due to project demandThe sleep function is needed to periodically fetch a heap of data from the database to perform certain operations.Sleep waits at least one

PHP sleep () function, usleep () function, sleepusleep PHP sleep () function Definition and usage The sleep () function delays code execution for several seconds.Syntax sleep (seconds)Seconds required. The pause time in seconds.Return Value If the

A permanently running PHP script sleep php sleep I have read the post I asked to determine whether only one permanent running script is running. Now I want to ask sleep () for 1 second Sleep () 10 seconds Sleep () 1 minute Sleep () half an

In some programs, there are some special features need to be used for timed execution, if the familiar Linux friends will say it is not easy, directly to a scheduled task crontab soon realized it? This can be done, but it must be known in advance of

1 2 3 4 5 6 Ob_start,flush,ob_flush for ($i =0; $i 10; $i + +) {echo $i. '‘; Flush (); Sleep (1); } A friend of the PHP cache output control function must be familiar with the above code, it would like to achieve the effect is 1

1. PHP Sleep () function Definition and usage The sleep () function delays code execution for several seconds.Grammar Sleep (seconds)seconds required. The pause time in seconds.return value If successful, returns 0, otherwise