A cron is a program which allows users to execute scripts at a specified time and date. In the web development world they are normally used to update caches or run complex pieces of code (this in theory should improve the user experience).
In this short video I will explain the basics of crons & how to run a PHP at a regular interval.
PHP Cron Commands
Usage: php [-q] [-h] [-s] [-v] [-i] [-f <file>] php <file> [args...] -a Run interactively -C Do not chdir to the script's directory -c <path>|<file> Look for php.ini file in this directory -n No php.ini file will be used -d foo[=bar] Define INI entry foo with value 'bar' -e Generate extended information for debugger/profiler -f <file> Parse <file>. Implies `-q' -h This help -i PHP information -l Syntax check only (lint) -m Show compiled in modules -q Quiet-mode. Suppress HTTP Header output. -s Display colour syntax highlighted source. -v Version number -w Display source with stripped comments and whitespace. -z <file> Load Zend extension <file>.
If you are interested in learning more about crons, please check out the following sources: