Regular Expressions 101

Order By

Sponsors
There are currently no sponsors. Become a sponsor today!

Community Patterns

30

Cron schedule

Recommended
PCRE (PHP <7.3)
Validate cron lines (even the ones commented out)
Submitted by anonymous - 9 years ago
24

best youtube id match ( iframe embed replace ready )

Recommended
PCRE (PHP <7.3)
MATCH ANY YOUTUBE ID author : mi-ca v1.0 – 2017.03.08 This Regex match any youtube url and grab the ID. Embed ready √ --...
Submitted by mi-ca.ch - 6 years ago
1...900901902

Community Library Entry

0

Regular Expression
PCRE2 (PHP >=7.3)

/
^(?:(?:31(?:0[13578]|1[02])|(?:30|29)(?:0[13-9]|1[0-2])|(?:0[1-9]|1[0-9]|2[0-8])(?:0[1-9]|1[0-2]))[0-9]{2}-?[0-9]|290200-?[4-9]|2902(?:(?!00)[02468][048]|[13579][26])-?[0-3])[0-9]{3}|000000-?0000$
/
gm
Open regex in editor

Description

This one makes sure to not match 31 in months where it does not exist and cuts off february at 28. Might need to do special check for 29th of february ..?

Submitted by anonymous - 2 years ago