What is Cron Job In Php and it's basic types. and what is server is off at cron job time

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ravimanephpmysql
This depends on which cron scheduler you use. The basic, vanilla cron daemon will not run tasks that were missed due to system downtime. However, there are other cron schedulers specifically designed for this situation which will do this for you. The two most common examples are anacron and fcron.

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