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
  • Match everything enclosed
    (?:...)
  • Capture everything enclosed
    (...)
  • 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

/
/
g

Test String

Code Generator

Language

Generated Code

$re = '/(\d+)\s+(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}:\d+)\s+(\d+)\s+([A-z\d]+)(\(OK\))?\s+((\w+[A-z]\w+\s+)+)/'; $str = '-------------------------------------------------- 0 127.0.0.1:1234 16 739casd1b747171ee9038fdbeb5440f(OK) Hans Dieter 1 127.0.0.1:1234 16 c196c8077727asd7d2bc691e109904dc(OK) House P 2 127.0.0.1:1234 15 9647c2fd98asdb7c7278e820bef701c(OK) EisFrau 3 127.0.0.1:1234 16 ed018ads96a17d55c62d4b6814(OK) [S.L]EisMann 4 127.0.0.1:1234 0 1f7b7fasd0bc3ce1c300a451b0d039(OK) 0MasterCore0 5 127.0.0.1:1234 78 dbf18b744dasd326e3585f4b11d4f40(OK) Abdul (6 users in total)"'; preg_match_all($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