Regular Expressions 101

Save & Manage Regex

  • Current Version: 1
  • Save & Share
  • Community Library

Flavor

  • PCRE2 (PHP)
  • ECMAScript (JavaScript)
  • Python
  • Golang
  • Java
  • .NET 7.0 (C#)
  • Rust
  • PCRE (Legacy)
  • Regex Flavor Guide

Function

  • Match
  • Substitution
  • List
  • Unit Tests
Sponsors
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
Processing...

Test String

Code Generator

Language

Generated Code

$re = '/(?sm:^{1.*?CU)(?-s:.*)/'; $str = '{1:F21CRESUS33XLIQ9590112170}{2:O1030747170228BNPAGB22XCIT95901121701702280629U}{3:{103:GLBH}}{4 :20:PK836J9GD2HI7SWQ :23B:CRED :32A:170214USD2154,252" 50:ABNYUS33XXXX" /1Jose Lugo" /2931 Corte De Luna" /3 Seattle" /498104, United States" 59F:BPAHCUHHXXXX" /1 Jossef Goldberg" /21220 Bradford Way" /3 Seattle" /498104, United States :71A:OUR" -}" {1:L01BARCGB21X05G7115765182}{2:O1030946170226ABBYGB2LXXXX71157651821702261046S}{3:{103:WJHX}}{4" :20:YZDSKFJNXV4BE3MP" :23B:CRED" :32A:170214USD63362,31" 50:ABBYGB2LXXXX" /1Jossef Goldberg" /21220 Bradford Way" /3 Seattle" '; preg_match_all($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