Title: Unknown modifier Error
Last modified: November 2, 2016

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# Unknown modifier Error

 *  Resolved [NewsArena](https://wordpress.org/support/users/newsarena/)
 * (@newsarena)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/unknown-modifier-error-2/)
 * `PHP Warning: preg_match() [<a href='function.preg-match'>function.preg-match
   </a>]: Unknown modifier '0' in /home/*****/public_html/wp-content/plugins/wassup/
   wassup.php on line 1430`
 * I have this error from several days.

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Plugin Author [michelem](https://wordpress.org/support/users/michelem/)
 * (@michelem)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/unknown-modifier-error-2/#post-8397181)
 * Could you try to change the line 1430 of the file wassup.php with this?
 * `if($req_code == 200 || empty($recent_hit) || ($hackercheck && $spam==0 && (stristr(
   $urlRequested,"/wp-")!==FALSE || preg_match('#\.(php\d?|aspx?|bat|cgi|dll|exe
   |ini|js|jsp|msi|sh)([^0-9a-z.\-_]|$)|([\\\.]{2}|\/\.|root[^a-z0-9\-_]|[^a-z0-
   9\-_]passw|\=admin[^a-z0-9\-_]|\=\-\d+|(bin|etc)\/)|[\*\,\'"\:\(\)$\`]|[^0-9a-
   z](src|href|style)[ +]?=|&\#?([0-9]{2,4}|lt|gt|quot);|(?:<|%3c|<?|&\#0*60;?|&\#
   x0*3c;?)[jpsv]|(?:user|author|admin|id)\=\-?\d+|(administrator|base64|bin|code
   |config|cookie|delete|document|drop|drupal|eval|exec|exit|function|iframe|insert
   |install|java|joomla|load|null|repair|script|select|setting|setup|shell|system
   |table|union|upgrade|update|upload|where|window|wordpress)#i',$urlRequested)>
   0))){`
    -  This reply was modified 9 years, 6 months ago by [michelem](https://wordpress.org/support/users/michelem/).
    -  This reply was modified 9 years, 6 months ago by [michelem](https://wordpress.org/support/users/michelem/).
 *  Thread Starter [NewsArena](https://wordpress.org/support/users/newsarena/)
 * (@newsarena)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/unknown-modifier-error-2/#post-8401085)
 * It’s OK now. Thanks.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Unknown modifier Error’ is closed to new replies.

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 * 2 replies
 * 2 participants
 * Last reply from: [NewsArena](https://wordpress.org/support/users/newsarena/)
 * Last activity: [9 years, 6 months ago](https://wordpress.org/support/topic/unknown-modifier-error-2/#post-8401085)
 * Status: resolved