Regular Expressions 101

Save & Share

  • Regex Version: ver. 2
  • 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

/
/
g

Test String

Code Generator

Generated Code

$re = '/(?:\d+:){2}\d+,\d+ --> (?:\d+:){2}\d+,\d+[\r\n]+([^\n]+)/'; $str = '1 00:00:01,860 --> 00:00:31,210 Affil of fifth at fat at all the social ball and said, with all this little in the 2 00:00:31,210 --> 00:01:03,060 mid limited and will cost a lot, for want of a lot of it is I never do this or below are the innocent of fat in the annual own none will bit less often were a little the earth the oven for the area of some of them some of the atom in the long will recall the law, will cost you the ball a little less of Odessa and coal rule the Vikings in at a loss 3 00:01:03,980 --> 00:01:33,150 of our lady of one of the will of the wall routing visiting little sign of the limited use of a lot of wind up with a loss of 14 and uncivil will find a site to lop off call them into solid, a London, can we stop go to work as a gay sailor kissing a lot of that scene of the law that on them in this case 4 00:01:33,950 --> 00:02:03,190 will almost a kind wilkinson\'s, and that a settlement, or the fog collared of the unknown, some would call and all of this was a little, some of us up a lot of letters, union would quit them or not will be or will lend money to zoning and will open the door to that of the novel opens in 5 00:02:04,240 --> 00:02:24,180 it and solidity can cut later with boats can die to only see not open only to six and 0:50 and world go ba'; preg_match_all($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