Add static isValid function to CronExpression

mtdowling / cron-expression

CRON for PHP: Calculate the next or previous run date and determine if a CRON expression is due

http://mtdowling.com/blog/2012/06/03/cron-expressions-in-php/

MIT License

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Add static isValid function to CronExpression #186

Open loneregister opened 1 year ago

loneregister commented 1 year ago

In my use of this repository, it would be very useful (is useful) to have a static function called isValid that simply returns TRUE or FALSE if the cronExpression is valid.