Regular Expressions 101

Order By

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

Community Patterns

1

Date Regex yyyy-mm-dd with leap year

PCRE (PHP <7.3)
/((20)0-9]{2}[-|102])[-|12|301]))|((20)[0-9]{2}[-|11)-|12|30))|((20)0-9]{2}[--|10-9]|2[0-8]))|((((20)(04|08|[2468|13579))|2000)-[-]29)/g
Submitted by anonymous - 5 years ago
1

UK style date

PCRE2 (PHP >=7.3)
dd/mm/yyyy
Submitted by Russ Ferriday, from Docusign templates - 4 years ago
1

US Style Date - from Docusign template

PCRE2 (PHP >=7.3)
mm/dd/yyyy
Submitted by Russ Ferriday, based on customer docusign template - 4 years ago
1

find literal yyyy-mm-dd dates

PCRE2 (PHP >=7.3)
to find usage of magic strings in a codebase
Submitted by anonymous - 2 years ago
1

DATE FORMAT REGEX ALL COMBINAISIONS

PCRE2 (PHP >=7.3)
For the day: d Displays the day as a number without a leading zero (1-31). dd Displays the day as a number with a leading zero (01-31). ddd Displays the day as an abbreviation (Sun-Sat) dddd Displays the day as a full name (Sunday-Saturday) ...
Submitted by EYA GHACHEM - 2 years ago
1

FORMAT DATE WITH NO SEPARATOR

PCRE2 (PHP >=7.3)
For the day: d Displays the day as a number without a leading zero (1-31). dd Displays the day as a number with a leading zero (01-31). ddd Displays the day as an abbreviation (Sun-Sat) dddd Displays the day as a full name (Sunday-Saturday) ...
Submitted by EYA GHACHEM - 2 years ago
1

DD/MM/YYYY Date with leap years

Python
1000-9999 years '-', ' ', ':', '.', or '/' may be user as divider
Submitted by furren - a year ago
1

Best birth date check

ECMAScript (JavaScript)
Format YYYY-MM-JJ
Submitted by anonymous - a year ago
1

Birth date check format yyyy-mm-dd

ECMAScript (JavaScript)
Start from 1900-01-01
Submitted by anonymous - a year ago
1

(Good enough) Birth Date match

PCRE2 (PHP >=7.3)
Follows ISO 8601 standard (YYYY-MM-DD) $1 is year, $2 is month and $3 is day (for substitution)
Submitted by Danry Bir - a year ago
1

Match a date in DD-MM-YYYY format

PCRE2 (PHP >=7.3)
memoryjarapp.com
Submitted by anonymous - 10 months ago
1

Extract Dates in Long Format

PCRE2 (PHP >=7.3)
simplicitylabs.net
Submitted by anonymous - 10 months ago
1

Match Date and Time (ISO 8601)

PCRE2 (PHP >=7.3)
buzzword101.com
Submitted by anonymous - 10 months ago
1

Match Dates in Multiple Formats (DD/MM/YYYY or MM-DD-YYYY)

PCRE2 (PHP >=7.3)
toptechietimes.com
Submitted by anonymous - 10 months ago
1

Match Credit Card Expiry Date

PCRE2 (PHP >=7.3)
stockmoneys.com
Submitted by anonymous - 10 months ago
1

Match Date in ISO 8601 Format

PCRE2 (PHP >=7.3)
ekindesigns.com
Submitted by anonymous - 10 months ago
1

Validate Credit Card Expiration Date

PCRE2 (PHP >=7.3)
digitalogymedia.com
Submitted by anonymous - 10 months ago
1

Matching Dates with Day of Week (e.g., Monday, August 14, 2024)

PCRE2 (PHP >=7.3)
mayurscanecorner.com
Submitted by anonymous - 10 months ago
1

Matching Dates in MM-DD-YYYY Format

PCRE2 (PHP >=7.3)
techwiki.biz
Submitted by anonymous - 10 months ago
1

Month Day, Year match

Python
Match a date in the following Month Day, Year format: June 14, 2013
Submitted by Drew - 11 years ago
1...7891011...26