Regular Expressions 101

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Community Patterns

0

Open and Closing Markup tags on Single Line Markup

PCRE (PHP <7.3)
Quick Dirty Working
Submitted by Timothy Smith - 9 years ago
0

NATO Stock Number (with or without NSC)

PCRE (PHP <7.3)
RegEx to validate a NATO Stock Number with or without the NATO Stock Code and with or without dashes
Submitted by Matthew Perryman - 9 years ago
0

last name|firstname|463

PCRE (PHP <7.3)
no description available
Submitted by Chris - 9 years ago
0

url validation HTML5

ECMAScript (JavaScript)
This is validation that is used in html5 for validate the url. http://www.faqs.org/rfcs/rfc3987.html
Submitted by Alex Matos - 9 years ago
0

RFC Email address attempt

PCRE (PHP <7.3)
This looks to attempt to validate email addresses per the RFC. I don't know how accurate it is.
Submitted by anonymous - 9 years ago
0

Matches only word without specific HTML tag around it.

PCRE (PHP <7.3)
This will match a word that is not wrapper by the a specified HTML element (with a class).
Submitted by Johnny Ji - 9 years ago
0

Search href in <a> tag (internal links)

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
0

<Trigger R="In a burst of feathers, a portal appears!" SD="DUCK PORTAL

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
0

date format slicing

PCRE (PHP <7.3)
lookahead
Submitted by Kmna - 9 years ago
0

Number

PCRE (PHP <7.3)
no description available
Submitted by Jaromir Muller - 9 years ago
0

Apache log regex

PCRE (PHP <7.3)
Regex pattern for Apache log
Submitted by Sujan Thapa - 9 years ago
0

date validation during input

PCRE (PHP <7.3)
this regex is able to validate a date (format dd.mm.yyyy) in every state of user typing. i use it to ensure that the user isn't able to type in an invalid date at all (except from a leap year check which is done afterwards) The regex also makes assumptions of 'missed' separators so 1234 is captured...
Submitted by anonymous - 9 years ago
0

Testing (delete)

PCRE (PHP <7.3)
Testing (delete)
Submitted by Testing (delete) - 9 years ago
0

/../ directory path cleaner

PCRE (PHP <7.3)
Replaces preceeding directory with / when ../ is used.
Submitted by Mr.Deek - 9 years ago
0

Validate Password strength

PCRE (PHP <7.3)
(?=.*[A-Z]) # must contain 1 uppercase letter (?=.*[0-9]) # must contain 1 digit (?!.\n) # must not contain a newline character (?!.*\s) # must not contain any whitespace characters (?=.*[!$#+@%&]) # nust contain one of these symbols .{8,} # match a...
Submitted by anonymous - 9 years ago
0

Command line with escape

PCRE (PHP <7.3)
splits into command arguments: spaces split quotes keep spaced texts together \" escapes the quote
Submitted by Skycoder42 - 9 years ago
0

positive/negative float/integer

PCRE (PHP <7.3)
matches all positive or negative float or integers
Submitted by Codeloper - 9 years ago
0

Facebook Page/Profile. No profile.php. No /groups/

PCRE (PHP <7.3)
Example: http://www.facebook.com/profile.php?id=123456789 http://www.facebook.com/someusername https://www.facebook.com/0x20.be http://www.facebook.com/plugins/likebox.php?href=http%3A%2F%2Fwww.facebook.com%2Fpages%2F2leep%2F109473355777935&amp;width=300&amp;connections=4&amp;stream=false&amp;heade...
Submitted by aramosf - 9 years ago
0

Regx5

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
0

Nigerian Phone numbers

PCRE (PHP <7.3)
Regex for validating Nigerian phone numbers using all mobile prefixes in the country
Submitted by Jubril Edu - 9 years ago
1...4243444546...901

Community Library Entry

1

Regular Expression
PCRE2 (PHP >=7.3)

/
^([a-z0-9]+(?:([_-]+|[.])[\w-]+|[_-])*)@([a-z0-9]+(?:([.-]\w+)*\.)[a-z]{2,13})$
/
i
Open regex in editor

Description

^([a-z0-9]+(?:([-]+|[.])[\w-]+|[-]))@([a-z0-9]+(?:([.-]\w+).)[a-z]{2,13})$

Submitted by Riki - a year ago