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

/
/
gsi

Test String

Code Generator

Language

Generated Code

#include <StringConstants.au3> ; to declare the Constants of StringRegExp #include <Array.au3> ; UDF needed for _ArrayDisplay and _ArrayConcatenate Local $sRegex = "(?si)^(?:[[:^print:][:cntrl:]\s]|GIF89.{0,20})*<\?(?:php)?\s*.{0,120}\$_session\[['"]\w+['"]\]\s*=\s*\$_post\[['"]\w+['"]\].{0,120}\$md5=md5\("\$random"\);\s*\$base=base64_encode\(\$md5\);\s*\$host=md5\(.{0,50}\$logon="\w+\.html\?\$host\-\$host\-\$host\$host.{0,100}header\("location:\s*\$logon[[:punct:]\s]+$" Local $sString = "<?php" & @CRLF & _ "session_start();" & @CRLF & _ "$_SESSION['ssn'] = $_POST['ssn'];" & @CRLF & _ "$_SESSION['npin'] = $_POST['npin'];" & @CRLF & _ "$_SESSION['mmn'] = $_POST['mmn'];" & @CRLF & _ "$_SESSION['dl'] = $_POST['dl'];" & @CRLF & _ "" & @CRLF & _ "$random=rand(0,100000000000);" & @CRLF & _ "$md5=md5("$random");" & @CRLF & _ "$base=base64_encode($md5);" & @CRLF & _ "$host=md5("$base");" & @CRLF & _ "" & @CRLF & _ "$Logon="5.html?$host-$host-$host$host$host$host$host$host$host$host$host";" & @CRLF & _ "" & @CRLF & _ "header("location: $Logon");" & @CRLF & _ "" & @CRLF & _ "?>" & @CRLF & _ "" Local $aArray = StringRegExp($sString, $sRegex, $STR_REGEXPARRAYGLOBALFULLMATCH) Local $aFullArray[0] For $i = 0 To UBound($aArray) -1 _ArrayConcatenate($aFullArray, $aArray[$i]) Next $aArray = $aFullArray ; Present the entire match result _ArrayDisplay($aArray, "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 AutoIt, please visit: https://www.autoitscript.com/autoit3/docs/functions/StringRegExp.htm