Regular Expressions 101

Save & Share

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

/
/
gm

Test String

Code Generator

Generated Code

$re = '/282b:(?<player>[a-zA-Z-\' ]{3,30}) readies Terminal Velocity./m'; $str = '[14:37:04.000] 00:082b:You use Cascade. [01:00:07.000] 00:102b:Vista CleaveCarbuncle readies Raw Destruction. [01:17:35.000] 00:102b:Mia MillGungnir readies Raw Destruction. [01:15:04.000] 00:082b:You use Cascade. [01:17:01.000] 00:28af:⇒ You suffer the effect of Bind. [19:14:57.000] 00:28af:⇒ You suffer the effect of Holmgang. [00:41:42.000] 00:28af:⇒ You suffer the effect of Feint. [00:39:49.000] 00:292f:⇒ Holo Horizonhollow suffers the effect of Feint. [00:44:38.000] 00:292f:⇒ Rip RillGungnir suffers the effect of Feint. [01:00:35.000] 00:282b:Zukasa YatohTyphon readies Raw Destruction. [01:17:00.000] 00:282b:Zukasa YatohTyphon readies Raw Destruction. [01:16:18.348] 1A:1009238C:Octavian Kreuszner gains the effect of Sleep Resistance from Tuke Mono for 10.00 Seconds. [22:27:58.041] 1A:1024EAB3:Xi Eanris gains the effect of Sleep Resistance from Rip Rill for 10.00 Seconds. [00:41:34.000] 00:282b:Agurlius StoreaUnicorn readies Raw Destruction. [00:41:35.044] 14:D20:Agurlius Storea starts using Raw Destruction on Agunimon Kenbara. [00:43:19.000] 00:282b:Miqo AtsushieCarbuncle readies Terminal Velocity. [00:40:32.054] 03:40006E89:Added new combatant Adrenaline. Job: N/A Level: 60 Max HP: 4000 Max MP: 100 Pos: (0,-10,-2.5) (46860000006489). [21:23:01.720] 03:4000A841:Added new combatant Adrenaline. Job: N/A Level: 60 Max HP: 4000 Max MP: 100 Pos: (0,-10,-2.5) (46860000006489).'; preg_match_all($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