Title: strpos() [function.strpos]: Empty delimiter
Last modified: August 21, 2016

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# strpos() [function.strpos]: Empty delimiter

 *  Resolved [Citizen Smith](https://wordpress.org/support/users/citizen-smith/)
 * (@citizen-smith)
 * [12 years, 5 months ago](https://wordpress.org/support/topic/strpos-functionstrpos-empty-delimiter/)
 * I tried the plugin on four websites, hosted by two different hosting companies.
   I used the whitelist but it is not easy to whitelist all the IPs I use – my home
   ISPs have a lot of dynamic IP ranges, and I also access from other locations.
 * I have had this warning from all of them – even a new one that I was setting 
   up (which I know from a log file had only 13 attempted unauthorised logins in
   a week, so it couldn’t be due to a lockout every time)
 * Warning: strpos() [function.strpos]: Empty delimiter in … public_html/blog/wp-
   content/plugins/botnet-attack-blocker/botnet-attack-blocker.php on line 119
 * Warning: Cannot modify header information – headers already sent by (output started
   at … /public_html/blog/wp-content/plugins/botnet-attack-blocker/botnet-attack-
   blocker.php:119) in … /public_html/blog/wp-includes/pluggable.php on line 698
 * plus several more following lines
 * the line numbers vary
 * paths shortened
 * Any ideas as to the cause?

Viewing 3 replies - 1 through 3 (of 3 total)

 *  [esmi](https://wordpress.org/support/users/esmi/)
 * (@esmi)
 * [12 years, 5 months ago](https://wordpress.org/support/topic/strpos-functionstrpos-empty-delimiter/#post-4397298)
 * First, identify which plugin you are using and then post in that plugin’s dedicated
   forum via its page in the [Plugin Repository](http://wordpress.org/plugins/).
 *  Thread Starter [Citizen Smith](https://wordpress.org/support/users/citizen-smith/)
 * (@citizen-smith)
 * [12 years, 5 months ago](https://wordpress.org/support/topic/strpos-functionstrpos-empty-delimiter/#post-4397307)
 * Oops – sorry!
 * I had navigated to the plugin support page first – not quite sure how I managed
   to submit a general request, but possibly because I had to log in before posting,
   so apologies that I didn’t notice when I ended up using the wrong page …
 * I have tried again, and think I did it right this time!
 *  [esmi](https://wordpress.org/support/users/esmi/)
 * (@esmi)
 * [12 years, 5 months ago](https://wordpress.org/support/topic/strpos-functionstrpos-empty-delimiter/#post-4397313)
 * Continued in [http://wordpress.org/support/topic/strpos-functionstrpos-empty-delimiter-1?replies=1](http://wordpress.org/support/topic/strpos-functionstrpos-empty-delimiter-1?replies=1)
 * Closing…

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘strpos() [function.strpos]: Empty delimiter’ is closed to new replies.

## Tags

 * [function.strpos](https://wordpress.org/support/topic-tag/function-strpos/)

 * 3 replies
 * 2 participants
 * Last reply from: [esmi](https://wordpress.org/support/users/esmi/)
 * Last activity: [12 years, 5 months ago](https://wordpress.org/support/topic/strpos-functionstrpos-empty-delimiter/#post-4397313)
 * Status: resolved

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