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

/
/
g

Test String

Code Generator

Generated Code

$re = '/[^\$]\s1([,|)])/'; $str = 'INSERT INTO fa_MISC_JUL16 (F_ID, X2, X3, X4, X6, G3, E9, D9, V9, P01, T4, R2, CX050, NX01, M11) VALUES (17051, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) INSERT INTO fa_data1_JUL16 (F_ID, F_FULL_NAME, F_ADDRESS, F_AWARD, F_DEADLINE_DATE, F_DURATION, F_OTHER_SPONSORS, F_PURPOSE, F_SPONSOR, F_MX_sponsor, F_PX_sponsor, F_WEBSITE, F_ELIGIBILITY, F_SPECIAL_FEATURES) VALUES (38286, \'A. Bartlett Giamatti Fellowship\', \'Attn: Beinecke Rare Book and Manuscript Library<br>120 High Street<br>P.O. Box 208330<br>New Haven, CT 06520-8330\', \'The program supports travel to and from New Haven and pays a living allowance of $4,000 per month for postdoctoral fellows or $3,000 per month for doctoral candidates.\', \'December of each year for postdoctoral fellows or October of each year for doctoral candidates.\', \'1 to 3 months between October and May for postdoctoral fellows or between June and August for doctoral candidates.\', \'Yale University. Beinecke Rare Book and Manuscript Library\', \'To provide short-term funding to postdoctoral scholars and doctoral candidates from any country interested in conducting research in history or literature using the resources of the Beinecke Rare Book and Manuscript Library at Yale University.\', \'Yale University\', \'\', \'\', \'beinecke.library.yale.edu/programs-events/fellowship-program\', \'This program is open to visiting scholars from any country interested in conducting postdoctoral or dissertation research in history or literature at the Beinecke Library. Applicants should live outside the greater New Haven area. Along with their application, they must submit a curriculum vitae, 2 letters of recommendation, a 1,200-word research proposal, and a detailed list of specific research materials to be consulted at the Beinecke.\', \'Recipients are expected to be in residence during the period of their award and are encouraged to participate in the activities of Yale University.\') '; preg_match_all($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