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
Suppose you have a php CLI file that runs every 2 minutes to perform MySQL data write operations.
If you use Corntab or MQ, every execution is
Establish a MySQL connection
Performing Bulk writes
PHP manually end MySQL connection
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
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
It is also a wonderful demand for customers. we need to create a scheduled task in php and execute it in N days. the method I found on the internet is to use the while loop, which uses sleep () control the task start time, but the problem is that
After writing sleep in PHP, you cannot execute this post. after editing the sleep in PHP at 2015-04-, the webpage is always loading, the result cannot be displayed. The following is the source code & lt ;? Phpignore_user_abort (true); set_time_limit
Will you write the log sleep in php ?. Sleep. phpignore_user_abort (); the PHP script can be executed even if the Client is disconnected (such as the browser is disabled. set_time_limit (0); the execution time is unlimited, and the default php
Http://blog.csdn.net/wang6279026/article/details/9527415
This event originated from a diaosi publishing a sorting algorithm with a time complexity of O (n). The URL is as follows: http://dis.4chan.org/read/prog/1295544264.
Although the use value
In some of the website of quiz, if we need to do a function of timed execution, for example, a problem, in 10 seconds to complete, otherwise show "You have timed out", if completed, then jump to the next question above, and this middle has a
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