Regular Expressions 101

Save & Share

  • Regex Version: ver. 6
  • Update Regex
    ctrl+⇧+s
  • Save new Regex
    ctrl+s
  • Add to Community Library

Flavor

  • PCRE2 (PHP >=7.3)
  • PCRE (PHP <7.3)
  • ECMAScript (JavaScript)
  • Python
  • Golang
  • Java 8
  • .NET 7.0 (C#)
  • Rust
  • Regex Flavor Guide

Function

  • Match
  • Substitution
  • List
  • Unit Tests

Tools

Sponsors
There are currently no sponsors. Become a sponsor today!
An explanation of your regex will be automatically generated as you type.
Detailed match information will be displayed here automatically.
  • All Tokens
  • Common Tokens
  • General Tokens
  • Anchors
  • Meta Sequences
  • Quantifiers
  • Group Constructs
  • Character Classes
  • Flags/Modifiers
  • Substitution
  • A single character of: a, b or c
    [abc]
  • A character except: a, b or c
    [^abc]
  • A character in the range: a-z
    [a-z]
  • A character not in the range: a-z
    [^a-z]
  • A character in the range: a-z or A-Z
    [a-zA-Z]
  • Any single character
    .
  • Alternate - match either a or b
    a|b
  • Any whitespace character
    \s
  • Any non-whitespace character
    \S
  • Any digit
    \d
  • Any non-digit
    \D
  • Any word character
    \w
  • Any non-word character
    \W
  • Non-capturing group
    (?:...)
  • Capturing group
    (...)
  • Zero or one of a
    a?
  • Zero or more of a
    a*
  • One or more of a
    a+
  • Exactly 3 of a
    a{3}
  • 3 or more of a
    a{3,}
  • Between 3 and 6 of a
    a{3,6}
  • Start of string
    ^
  • End of string
    $
  • A word boundary
    \b
  • Non-word boundary
    \B

Regular Expression
No Match

/
/
gmi

Test String

Code Generator

Language

Generated Code

$re = '/^(N|S)?\s*(\d*[.])?\d+(\x{00b0}\s*)?((\d*[.])?\d+((\x{0022})|((\x{0027}\s*)?)?((\d*[.])?\d+?(\x{0022})?)?))?[\s\x{002c}]+(W|E)?\s*(\d*[.])?\d+(\x{00b0}\s*)?((\d*[.])?\d+((\x{0022})|((\x{0027}\s*)?)?((\d*[.])?\d+(\x{0022})?)?))?$/mi'; $str = 'n 1 e 0 n 1.1 e 0 n49.54.15.21 e1 n49.54.15.21° e1 n49.54.15.21\' e1 n49.54.15.21" e1 n49.54\' 15.24" e1 n49.54\' 15.24.541" e1 n49.54.15.21\' 5456.4646" e1 n 1° e 0 n 1.1° e 0 n 1.1.1° e 0 n 1°1 e 0 n 1.1°1 e 0 n 1°1\' e 0 n 1.1°1\' e 0 n 1.1°1.1 e 0 n 1.1°1.1\' e 0 n 1°1.1.1 e 0 n 1.1°1.1.1 e 0 n 1°1.1.1\' e 0 n 1.1°1.1.1\' e 0 n 1.1°12.12.12 e 0 n 1.1°12.12.12\' e 0 n 1°1" e 0 n 1.1°1" e 0 n 1°1.12.21" e 0 n 11.11°12.212.21" e 0 n 11.11°11.1111\'12212.21" e 0 n 11.11°11.11.11\'12212.21" e 0 n 11.11°11.1111\'12.212.21" e 0 N 0° 00\' 000.000" E 0° 00\' 000" N0°00\'000 E0°00\' n 0° 00 , w 0° 00.000 S 0° 0" ,E 0° 0.00" s 0.00°, w0 N 49°121.47.247",W16°5496.2944466.54" N 49°12.41.47247",W16°54.96\'4.2946654"'; preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0); // Print the entire match result var_dump($matches);

Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for PHP, please visit: http://php.net/manual/en/ref.pcre.php