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

/
/
gm

Test String

Code Generator

Language

Generated Code

$re = '/^`=[A-Z0-9]+`\+[A-Z0-9]+-[A-Z0-9]+\s*`\+[A-Z0-9]+\/\d+\.\d+/m'; $str = 'Detail 3 Detail 4 Detail 3 Detail 4 blah blah Detail 5 Detail 4 Detail 5 `=P2385`+P2385-M01 `+MC2385/5.0 `=BS2366`+P2366-A1 `+FIELD/14.5 `=P2385`+P2385-M02 `+MC2385/5.4 blah blah `=P2385`+P2385-M03 `+MC2385/5.5 `=P2385`+P2385-M04 `+MC2385/5.9 `=P2385`+P2385-M05 `+MC2385/6.0 `=BS2366`+P2366-A1 `+FIELD/14.5 `=P2385`+P2385-M06 `+MC2385/6.4 `=P2385`+P2385-M07 `+MC2385/6.5 `=P2385`+P2385-M08 `+MC2385/6.9 blah blah `=P2385`+P2385-M09 `+MC2385/7.0 `=P2385`+P2385-M10 `+MC2385/7.4 `=P2385`+P2385-M11 `+MC2385/7.5 `=P2385`+P2385-M12 `+MC2385/7.9 `=P2381`+P2381-B31 `+MC2381/12.5 blah blah `=P2381`+P2381-B32 `+MC2381/12.9 `=P2381`+P2381-B33 `+MC2381/13.0 `=P2370`+P2370-M01 blah blah `+MC2370/6.0 `=P2370`+P2370-M02 `+MC2370/6.4 `=P2370`+P2370-M03 `+MC2370/6.5 `=P2370`+P2370-M04 `+MC2370/6.9 `=BS2366`+P2366-A1 `+FIELD/14.5 `=P2368`+P2368-M01 `+MC2370/11.0 `=P2368`+P2368-M05 `+MC2370/12.0 `=BS2366`+P2366-A1 `+FIELD/14.5 `=P2366`+P2366-M01 `+MC2370/10.5 `=P2366`+P2366-M02 `+MC2370/10.9 Detail 3 Detail 4 Detail 3 blah blah Detail 4 Detail 5 Detail 5 blah blah Detail 4 Detail 5 blah blah blah blah'; preg_match_all($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