Regular Expressions 101

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Community Patterns

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

Date formatting

PCRE2 (PHP >=7.3)
Format Date from different input
Submitted by fpreppo - a year ago
1

Date regex

PCRE2 (PHP >=7.3)
Date regex
Submitted by anonymous - a year ago
1

Date and age matcher

Python
matches strings like: "01/04/2023", "14/May/24" and "20" (age). WARNING: for american dates swap day and month! Groups: Date - the whole date Day - day Month - month...
Submitted by OlgPok - a year ago (Last modified a year ago)
1

date

PCRE2 (PHP >=7.3)
date
Submitted by anonymous - a year ago
1

Datetime any format

PCRE2 (PHP >=7.3)
Datetime any format
Submitted by RVH - a year ago (Last modified 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 time offset from timezone offset string

ECMAScript (JavaScript)
match offset from utc offset string returned by the timeZoneName property of an Intl.DateTimeFormat object. (see MDN documentation here)
Submitted by Lagoffre - a year ago (Last modified a year ago)
1

Match a date in DD-MM-YYYY format

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

Extract Dates in Long Format

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

Match Date and Time (ISO 8601)

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

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

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

Match Credit Card Expiry Date

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

Match Date in ISO 8601 Format

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

Validate Credit Card Expiration Date

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

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

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

Matching Dates in MM-DD-YYYY Format

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

german date era with tolerance: n. Chr. or v. Chr. / n. Ztr of v. Ztr

ECMAScript (JavaScript)
Maches german era notations in date "v. Chr" and "v. Ztr" It is meant to be tolerant : periods and spaces are optional, and it is case insensitive
Submitted by Olivier CHEVET - a year ago
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