Regular Expressions 101

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Community Patterns

2

Url with <a> (param) validation

PCRE (PHP <7.3)
https://www.google.com http://www.google.net/hello https://www.google. http://www.google./hello above url matching with given regex...
Submitted by Duleep Dissanayaka - 11 years ago
2

Password Enforcement Pattern -- trailing pattern

PCRE (PHP <7.3)
This RegEx was posted on a Ruby site as one for enforcing password pattern. I added {8,32} to limit the length of the password, even though I realize no one has passwords longer than that. Rules: at least 1 digit, 1 special character (as defined), 1 upper case and 1 lower case character, between 8 ...
Submitted by Dave Phillips - 10 years ago
2

Select all chars before last backslash

PCRE (PHP <7.3)
For selecting paths without filename
Submitted by Me! - 10 years ago
1

FQDN Fully Qualified Domain Name

PCRE (PHP <7.3)
Allow only two or more labels. Fix deprecated FQDN regexp not passing on test "dicas-l.com.br"
Submitted by Rafael Justo and Mauro Trajber - 9 years ago
0

number with or without thousands separator(.) and decimal part(,)

PCRE (PHP <7.3)
number with or without thousands separator(.) and decimal part(,) ES: 100000; 1.646; 13323,33; 3.444.434,44
Submitted by Basten - 10 years ago
2

HTTP url parser

PCRE (PHP <7.3)
Parses a URL to the different parts
Submitted by AmitK - 10 years ago
2

SFTP or FTP url

PCRE (PHP <7.3)
Parse an SFTP or FTP url and brak it into named capture groups.
Submitted by Cullen Johnson - 10 years ago
2

find numeric groups in strings

PCRE (PHP <7.3)
no description available
Submitted by Vovan - 10 years ago
2

Currency Amount

PCRE (PHP <7.3)
Format: x0.00 Valid: 13.37 4.20 1.00...
Submitted by anonymous - 10 years ago
2

Any number between 0 and 10 with 0 or 1 decimal places

PCRE (PHP <7.3)
Matches any number between 0 and 10 (inclusive) with 0 or 1 decimal places. Note that .5 will NOT be matched but 0.5 will. Also 10.X will not be matched, but 10 will.
Submitted by Matt Coubrough - 10 years ago
2

Currency amount without currency symbol

PCRE (PHP <7.3)
Matches numbers that are likely to by financial amount. Does not consider the type of currency.
Submitted by elgehelge - 10 years ago
2

strip parentheses enclosed text with no keywords

PCRE (PHP <7.3)
strip parentheses enclosed text with no keywords - handles nested parentheses - if using brackets/braces normalize string to parentheses then use the regex
Submitted by marie bacuno - 10 years ago
2

openweathermap rain and snow

PCRE (PHP <7.3)
Extract from {"city":{"id":1217734,"name":"Boysun","findname":"BOYSUN","country":"UZ","coord":{"lon":67.198608,"lat":38.206108},"zoom":8,"langs":[{"link":"http:\/\/en.wikipedia.org\/wiki\/Boysun"},{"ru":"Бойсун"}]},"time":1394871628,"main":{"temp":274.74,"temp_min":274.74,"temp_max":274.74,"pressure...
Submitted by amplatfus - 10 years ago
2

Dotted Decimal IPv4 Adress (for programming languages)

PCRE (PHP <7.3)
Searches for dotted decimal IPv4 Adresses and saves the numbers in match groups.
Submitted by anonymous - 10 years ago
2

foreach

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
2

Match <?xml...?>

PCRE (PHP <7.3)
How to match the first line of a xml document
Submitted by anonymous - 9 years ago
1

phone test

PCRE (PHP <7.3)
no description available
Submitted by cool guy - 11 years ago
2

js function test

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 12 years ago
2

Hello world example

PCRE (PHP <7.3)
no description available
Submitted by Fedir RYKHTIK - 11 years ago
2

takie

PCRE (PHP <7.3)
no description available
Submitted by sdfsdfdsf - 11 years ago
1...2021222324...481

Community Library Entry

2

Regular Expression
PCRE (PHP <7.3)

/
(?=^.{8,32}$)(?=.*\d)(?=.*[!@#$%^&*]+)(?![.\n])(?=.*[A-Z])(?=.*[a-z]).*$
/
Open regex in editor

Description

This RegEx was posted on a Ruby site as one for enforcing password pattern. I added {8,32} to limit the length of the password, even though I realize no one has passwords longer than that. Rules: at least 1 digit, 1 special character (as defined), 1 upper case and 1 lower case character, between 8 and 32 characters total.

The question I have pertains to the trailing .*$ pattern. On the Rubular site, this is required. On regex101.com it does not see to add value to the regex.

Do I need the .*$ on the expression?

Submitted by Dave Phillips - 10 years ago