Regular Expressions 101

Save & Share

  • Regex Version: ver. 1
  • 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

r"
"
gm

Test String

Substitution

Processing...

Code Generator

Language

Generated Code

$re = '/{.+?}|[\[\]<>]/m'; $str = 'Porta-a-Porta-d87134d1-e2bd-426b-b1f6-90d8dca68855;2842.020;2843.270;Unknown;; tecnici delle societ… Porta-a-Porta-d87134d1-e2bd-426b-b1f6-90d8dca68855;2903.310;2906.360;Unknown;; pu• avere un profilo specifico Porta-a-Porta-d87134d1-e2bd-426b-b1f6-90d8dca68855;2745.860;2749.060;Unknown;; Š quadruplicato rispetto al 1967. Porta-a-Porta-d87134d1-e2bd-426b-b1f6-90d8dca68855;1023.580;1026.250;Unknown;; monitoraggio fosse completo e cosŤ via. Porta-a-Porta-d87134d1-e2bd-426b-b1f6-90d8dca68855;708.870;711.290;Unknown;; Non solo un ponte, ma qualcosa di pi—. Porta-a-Porta-d605218c-b8c5-4b3b-9086-b83e4c958bf5;4199.210;4200.540;Unknown;; piů straziante. Porta-a-Porta-c28a23f4-d7b0-4624-8b49-72ba25be653e;4702.720;4703.900;Unknown;; tant\'č che questo ragazzo Presa-Diretta-Burocrazia-al-potere-ce58265f-da04-4b19-a1ad-2746830cac0a;4229.110;4232.130;Unknown;; a un testo di 13 pagine con 7/8.000 parole.< Presa-Diretta-Burocrazia-al-potere-ce58265f-da04-4b19-a1ad-2746830cac0a;4541.560;4543.100;Unknown;; sei/otto ore al giorno.< PresaDiretta-Il-capitale-naturale-8f39ea4f-a5fb-4c93-a504-a04d6482c086;1938.730;1941.830;Unknown;; abbattere i cervi.> Senza di loro, questa terra sarebbe Quante-storie-15aef095-7ba8-4237-af6e-aded20d1d40a;19.920;22.630;Unknown;; questa puntata {an2}che ha come ospite una Quante-storie-15aef095-7ba8-4237-af6e-aded20d1d40a;64.080;68.090;Unknown;; {an2}Sì, perché c\'è come un ritegno a venire in una Quante-storie-200b0694-7d54-4b5c-af5a-b54cae157ffd;446.730;447.790;Unknown;; della nostra Patria. {an2}[LA Quante-storie-2583a3a2-2e8c-4589-bede-933736b65043;1781.910;1783.030;Unknown;; UDIBILI] Porta-a-Porta-3b4b81d5-2f0f-4e51-9c29-00f9a2aa4444;4159.470;4160.890;Unknown;; bianca torneremo.# Porta-a-Porta-3b4b81d5-2f0f-4e51-9c29-00f9a2aa4444;4196.930;4198.230;Unknown;; del sole#'; $subst = ""; $result = preg_replace($re, $subst, $str); echo "The result of the substitution is ".$result;

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