Regular Expressions 101

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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

Substitution

Processing...

Code Generator

Language

Generated Code

$re = '/^(N[BFH][AL])(?:.*)(202\d)(?:\WWeek \d+)?\W(?:\W*|(.*)\W)(\d\d).(\d\d)\W(?:PS\W)?(\D*)\W?(?:.*\.)(mkv|mp4)$/mi'; $str = 'NBA PS 2022 Washington Wizards vs Golden State Warriors 01 10 576pEN60fps.mkv NHL PS 2022 New Jersey Devils vs New York Rangers 29 09 720pEN30fps.mkv NFL 2022 Week 3 Cowboys vs Giants Condensed Game 26 09 720pEN30fps.mkv NHL PS 2022 New York Islanders vs New Jersey Devils 27 09 720pEN30fps.mkv NFL 2022 Week 3 Dallas Cowboys vs New York Giants 26 09 720pEN30fps.mkv NHL PS 2022 New York Islanders vs New York Rangers 26 09 720pEN30fps NHLN.mkv NhHL 2022 Seattle Kraken vs Vancouver Canucks 29 09 720pEN30fps.mkv NHL PS 2022 New York Rangers vs Boston Bruins 27 09 720pEN30fps.mkv NHL 2022-09-24 PS Boston Bruins vs Philadelphia Flyers 720p60_EN_NBCSP.mkv NHL PS 2022 New York Rangers vs New Jersey Devils 30 09 720pEN30fps.mkv NHL 2022-09-26 PS New York Islanders vs New York Rangers 720p60_EN_MSGSN.mkv NHL PS 2022 Ottawa Senators vs Winnipeg Jets 27 09 720pEN30fps.mkv NHL 2022-09-27 Pre-Season Red Wings vs. Penguins 720p - English.mp4 NHL PS 2022 St. Louis Blues vs. Chicago Blackhawks 27 09 720pEN30fps.mkv NHL 2022-09-27 PS Ottawa Senators vs Winnipeg Jets 720p60_EN_TSN3.mkv NHL PS 2022 Washington Capitals vs Philadelphia Flyers 28 09 720pEN30fps.mkv NHL 2022-09-28 PS Chicago Blackhawks vs Detroit Red Wings 720p60_EN_BSDET.mkv NHL PS 2022 Winnipeg Jets vs. Edmonton Oilers 27 09 720pEN30fps.mkv'; $subst = "$1 - $2-$4-$5 - $3$6.$7"; $result = preg_replace($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