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

/
/
gis

Test String

Code Generator

Language

Generated Code

# coding=utf8 # the above tag defines encoding for this document and is for Python 2.x compatibility import re regex = r"^(?:[[:^print:][:cntrl:]\s]|GIF89.{0,20})*<\?(?:php)?\s*\/\/open\s*templates\/yours\.php.{0,180}?yourlinkscam.{0,100}?rand\(\d+,.{0,2500}?your\s*account\s*will\s*be\s*limited\s*over\s*24\s*h.{0,200}?unauthorised\s*account\s*access.{0,220}?Click\s*the\s*link\s*Below.{0,80}Confirm\s*Your\s*Account.{0,450}?paypal\s*inc\..{0,300}?paypal\s*corporation(?:[^;]+;\s*)?\s*if\(\!empty\(\$_GET\[[\"']view['\"]\]\)\)\{echo\s*\$html(?:[^>]+>\s*)?$" test_str = ("<?php\n" "//open templates/Yours.php with a text editor copy paste your html code in $html between the 2 ' and change all ' in your html to \\' and href=\"http://yourlinkscam\" to href=\"'.$var.'\" \n\n" "ini_set(\"output_buffering\",4096);\n" "$IDK = rand(00000000000, 99999999999).time();\n" "error_reporting(0);\n" "$html='\n" "<html><head><meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\"><meta name=\"viewport\" content=\"width=device-width; initial-scale=1.0; maximum-scale=1.0; user-scalable=0;\">\n" "<style type=\"text/css\">body { width: 100% !important;}</style>\n" " </head>\n\n\n" " \n" " <table width=\"0\" border=\"0\">\n" " <tbody><tr>\n" " <td> <div>\n" " <table cellspacing=\"0\" cellpadding=\"0\" width=\"550\" border=\"0\">\n" " <tbody>\n" " <tr>\n" " <td style=\" BACKGROUND: #ffffff; LINE-HEIGHT: 22px;border-radius: 10px 10px 10px 10px\">\n\n" " \n" " \n" " \n\n" " <center><td>\n" "<div style=\"FONT-SIZE:14px;FONT-FAMILY:Arial;COLOR:#747474\">\n" "<p align=\"left\">\n" "</p><div style=\"FONT-SIZE:10px;FONT-FAMILY:Arial black;COLOR:#828282;padding-left:30px\">\n" "<center><p style=\"FONT-SIZE:28px\"><strong><em><font color=\"#003084\">P<span><font>a</font></span>y</font><font color=\"#0098db\">Pal</font></em></strong></center>\n" "</p>\n\n" "</div>\n" "<p></p>\n" "</div>\n" "</td></center>\n" " \n" " \n" " \n" " </sub></font></p></div></p>\n" " \n" " </div>\n" " </td>\n" " </tr>\n" " </tbody>\n" " </table>\n\n" " </td>\n" " </tr>\n" " </tbody>\n" " </table>\n" " </div>\n" "<div><table cellspacing=\"0\" cellpadding=\"0\" width=\"0\" border=\"0\">\n" " <tbody>\n" " <tr>\n" " <td style=\" BACKGROUND: #F3F3FF; ; LINE-HEIGHT: 22px\">\n" " <table cellspacing=\"0\" cellpadding=\"0\" width=\"600\" align=\"left\" border=\"0\">\n" " <tbody>\n" " <tr>\n" " <td>\n" " <div>\n\n" "<br />\n" "<br />\n" "<br />\n" "<td style=\"PADDING-TOP:15px\">\n" "<div style=\"FONT-SIZE:15px;FONT-FAMILY:Arial;COLOR:#585858;margin-left:10px;margin-right:30px\">\n" "<center><p style=\"font-family:Helvetica Neue Light,Helvetica,Arial,sans-serif;font-size:20px;color:#009cde\">Your Account will be limited over 24 h if you dont\n" "confirm it .</p></center>\n" "<br>\n" "<p>\n" "<strong>why my Account will Be limited ?</p></strong>\n" "<center><em><li><ins>unauthorised account access From 59.56.111.253 . China-CN</ins></em></p></li>\n" "<br>\n" "Mozilla/5.0 (X11; Linux x86_64; rv:10.0) Gecko/20100101 Firefox/10.0\n" "<br>\n" "<br> \n" "<span style=\"color: #808080;\"><strong>Click the link Below and login then follow steps to Confirm Your Account :</strong></span><br /><br /><br><a onclick=\"return true\" href=\"'.$var.'\" style=\"FONT-SIZE:14px;FONT-FAMILY:Arial;WIDTH:250px;COLOR:#fff;TEXT-ALIGN:center;DISPLAY:inline-block;BACKGROUND-COLOR:#16aeff;border-radius:7px;line-height:28px\"><strong>Confirm My Account\n" "</strong> </a><br /> <br /> <br /> <br /> <span style=\"font-size: 10px; font-family: Arial, Verdena;\"> <em>PayPal Inc. : PayPal Corporate Center, 100 North Tryon Street, Charlotte, NC 28255. \n" "<br/>\n" "<br/>\n" "You can un-subscribe to security alerts by configuring your online account. \n" "We are sending this email to provide support for your personal account. <br /> <br />&#169; 2017 PayPal Corporation. All rights reserved</em> </span> </li>';\n" "if(!empty($_GET[\"view\"])){echo $html;}\n" "?>") matches = re.finditer(regex, test_str, re.IGNORECASE | re.DOTALL) for matchNum, match in enumerate(matches, start=1): print ("Match {matchNum} was found at {start}-{end}: {match}".format(matchNum = matchNum, start = match.start(), end = match.end(), match = match.group())) for groupNum in range(0, len(match.groups())): groupNum = groupNum + 1 print ("Group {groupNum} found at {start}-{end}: {group}".format(groupNum = groupNum, start = match.start(groupNum), end = match.end(groupNum), group = match.group(groupNum))) # Note: for Python 2.7 compatibility, use ur"" to prefix the regex and u"" to prefix the test string and substitution.

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 Python, please visit: https://docs.python.org/3/library/re.html