Regular Expressions 101

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Community Patterns

1

Valid Date or N/A

PCRE (PHP <7.3)
Validates date or allows "n/a" input and variations
Submitted by David Avellan - 9 years ago
1

Forecast.io API's required ISO 8601 datetime

PCRE (PHP <7.3)
Should match one of the valid ISO 8601 datetime formats accepted by Forecast.io API: YYYY]-[MM]-[DD]T[HH]:[MM]:[SS] with an optional time zone formatted as Z for GMT time or {+,-}[HH]:[MM for an offset
Submitted by Clifford Paulick - 9 years ago
1

Date Regex

PCRE (PHP <7.3)
Find a date formated M/d/yyyy.
Submitted by anonymous - 9 years ago
1

Date

PCRE (PHP <7.3)
Valid Date format:
Submitted by Daniel - 9 years ago
1

ISO8601 DateTime

PCRE (PHP <7.3)
Matches an ISO8601 date time string, including fractional time. Does not exclude non-existent times (such as the 29th february in non-leap-years)
Submitted by Tobias Marstaller - 9 years ago
1

ISO 8601 date formats incl. validation

PCRE (PHP <7.3)
Test for all ISO 8601 date formats and only accept valid dates, e.g. 2016-02-29, but not 2016-02-30 or 2017-02-29.
Submitted by Christoph Päper (Crissov) - 9 years ago
1

Pubmed Dates

PCRE (PHP <7.3)
PubMEd XML contains multiple date blocks, with or without Month, day, hour, minute. USAGE: while(my($pubstatus,$year,$month,$day,$hour,$minute)= $article =~ m% (?:\s* (?:\s(\d?)\s)* (?:\s(\d?)(?:)?\s)...
Submitted by Andy Reid - 9 years ago
1

Validation for full ISO8601 date and time with timezone

ECMAScript (JavaScript)
The RegExp validates ISO8601 date and time (without milliseconds) with timezone offset.
Submitted by pioneer32 - 9 years ago
1

Dates

PCRE (PHP <7.3)
Date for spanish calendar
Submitted by gornovah - 9 years ago
1

Apache Error Log Date Parsing

PCRE (PHP <7.3)
Parse the date from an Apache Error Log in the format of "Wed Jun 01 20:05:21.12345 2016"
Submitted by garys - 9 years ago
1

Date validation in dd MMM yyyy format

PCRE (PHP <7.3)
Date validation in dd MMM yyyy format Ex:14 Jan 2014
Submitted by neel - 9 years ago
1

Date

PCRE (PHP <7.3)
Legal dates
Submitted by anonymous - 9 years ago
1

Get Month and Year from different date format

PCRE (PHP <7.3)
Get Month and Year from different date format
Submitted by ankit s - 9 years ago
1

.NET Json DateTime

PCRE (PHP <7.3)
.NET Json serializer DateTime pattern.
Submitted by Joma Espinoza Bone - 9 years ago
1

Date validation mm/dd/yyyy

PCRE (PHP <7.3)
Date validation mm/dd/yyyy
Submitted by Girish - 9 years ago
1

US Format Short Date String

ECMAScript (JavaScript)
Matches any short date string between 1/1/2000 - 12/31/2199 in the formats: d/m/yyyy, dd/m/yyyy, d/mm/yyyy, or dd/mm/yyyy
Submitted by anonymous - 9 years ago
1

Regex to validate date format yyyy/mm/dd | Taha

PCRE (PHP <7.3)
Regex to validate date format yyyy/mm/dd
Submitted by Taha Bhutta - 9 years ago
1

Validate PHP DateInterval Format

PCRE (PHP <7.3)
Checks if string is valid DateInterval format
Submitted by grambas - 9 years ago
1

FInd Dates

PCRE (PHP <7.3)
Find Dates from string
Submitted by anonymous - 7 years ago
1

Wordless Date Validation

PCRE (PHP <7.3)
Validate and capture different dates without words for example: dd/mm/yyyy, d/m/yy, yyyy-mm-dd, yy-mm-dd
Submitted by anonymous - 6 years ago
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