Regular Expressions 101

Save & Manage Regex

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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
Processing...

Test String

Code Generator

Language

Generated Code

$re = '/[A-HJ-NPR-Z]{17}/'; $str = 'OXCIHKMBLPRQNTZWI BQPUFWZDSDNUUKIUV BVVXVWVCOASEASPWU DCZACWJCZUWLBIVUI KFLCKCAXUAZNKJVWR QOOCGWILRYKYQTENT YDSNHLBUHOACQBZUK JAKUCQVYQKZFWRXWC YNNXLIUQBJYAAGFKR NTYAJLVNQDPMNIROG QOAEGBNELNDIKQOWE TAFDEHDRRSLOMQYHW ZEWHUQUUMLBAIVSXJ CPVYSKEDOOPJZUQPK RWKNWQRZAEXMGMYNY UOXQHITETYLRBVLBL AJXTBSZZCYTBKXEIG CJKFUDLOVAQMSNHYX PDKBCPOBSFPQKQPPO SRUZVKGSTEXUJUNTK YZIOIZWTYKLVVBQNZ MXUXSWHEWODYXXNHR PRLPVFKGHNTNADBLX ZQQNLKNJQJXQOZBKN UIJAGGJPJCJWYKSKP TPHDBXGEYTLDKICNK LUFEZHOBWELPOQHSJ CDJBNDZGNVGFBCCMT WBMLMSUKNZETIRIBJ PJLCZNMCCCFMCPYAS YWYKSHVQRDCHTYIXB NXDGJCLMICGSHRSLR BZMIOYTZDXJQFBCDL TFBWYPZPBQUVIPVPY MENKAAMUWUTAUJAVN ESEBVHLEZMLAZJXBQ YGWVDMMPXXUYDMXUZ XLEBIZQMMHJEPTRLW JWJKFOATBUMERTNUR IEMWASQEAUVHXSYLO YEJKREPDABYZPGZAR SMEJMYGTXHDWTRSTK BUJGYIGPNFUZAWPJV GLJZLAEMBZADLVOAZ UDZLAZRUBZIANHNIW GTJKPSXOIYATPACJA BMDRMCRPOHASYZHSQ MZXXUHTTKENOEMCQJ VGQLJWLXZAQOWPDSE MGULNKBQRIGDWVKZH SLFBBOSNAJVBBRWLL KQHFKFQYCHDHHDGYG IRHWTIXJKCCNYUFNB VDVCWZCVSXAEKQZGK VUMKDQTIRWMLHEYIG QMFXECJGIAYRUVUGK ZLYVHWFCIQAPBGZFB RTHPHXLYFEFLOVFVS VBPSAADMVGTKNGIWI IBEJPBAOPCOEJSAAE KPRONONKFUPCGRYSI TUJVHIDWCHXHNIOAC THUQVGJTGEWJDSZYS PEOVRKYJZUWEFZZFI KGKKFJBRTQEYVYSBS QIOITDCVULXALAJPD DIRGGBSQCVDDPRQUZ CXBGJEOXHOEEWVFVU OZWAPYUBKTBAIMDSF MVHVBRLQZPQXCTOEN EVCKGZLQEMMPIAOCN ILICNRUQDGRPEOUFF XXMRPRMDHZOIAAEME VTFDDBCXZPDUESHVG NNUIFEIJFNZLTHOOC AZQBWAVIMJWLNSUPM'; preg_match_all($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