GOOCODE - Find your code/scripts

0 Never trust external input, don't trust any data from a data source that is not under your direct control. In actual development, there is always someone intentionally or unintentionally injecting dangerous data into PHP code, so PHP security programming becomes important. Generally, we deal with external input security ideas: filtering input and verifying data.

Filtering input means escaping or deleting characters that are not safe from external data.

0 When we do web project development, we often need to periodically back up data, periodically restart a service or periodically execute a PHP program, etc., generally use Crontab under Linux and use scheduled tasks under Windows. This article focuses on the basics of using Crontab under Linux and performing PHP tasks.

Crontab is a commonly used timing execution tool for Unix/Linux systems that runs specified jobs without human intervention.