Title: Warning: array_keys() [function.array-keys]
Last modified: August 19, 2016

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# Warning: array_keys() [function.array-keys]

 *  [mmeade](https://wordpress.org/support/users/mmeade/)
 * (@mmeade)
 * [15 years, 4 months ago](https://wordpress.org/support/topic/warning-array_keys-functionarray-keys-1/)
 * hi
    i have a problem with adsenseoptimizer plugin as i get the following error
   at the bottom of all posts on my website,
 * Warning: array_keys() [function.array-keys]: The first argument should be an 
   array in /home/xxxxx/public_html/mydomain.info/wp-content/plugins/adsenseoptimizer/
   adsenseoptimizer.php on line 17.
 * Can you tell me what i have done wrong
 * mairead

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

 *  [billg16](https://wordpress.org/support/users/billg16/)
 * (@billg16)
 * [15 years, 4 months ago](https://wordpress.org/support/topic/warning-array_keys-functionarray-keys-1/#post-1891303)
 * I’m getting the sam thing. Have you figured it out?
 *  Thread Starter [mmeade](https://wordpress.org/support/users/mmeade/)
 * (@mmeade)
 * [15 years, 4 months ago](https://wordpress.org/support/topic/warning-array_keys-functionarray-keys-1/#post-1891307)
 * hi
 * i am not sure what is wrong but i deactivated the plugin adsense on top and it
   seems to have solved my problem. i dont know if 1 was interfering with the other,
   do you have adsense on top plugin activated as well as adsense optimizer.
 *  Thread Starter [mmeade](https://wordpress.org/support/users/mmeade/)
 * (@mmeade)
 * [15 years, 4 months ago](https://wordpress.org/support/topic/warning-array_keys-functionarray-keys-1/#post-1891319)
 * [http://wordpress.org/support/topic/plugin-adsense-optimizer-array_keys-warning?replies=3](http://wordpress.org/support/topic/plugin-adsense-optimizer-array_keys-warning?replies=3)
 * this is link to thread where gnarf responded to this query, the author for this
   plugin
 * mairead

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

The topic ‘Warning: array_keys() [function.array-keys]’ is closed to new replies.

 * 3 replies
 * 2 participants
 * Last reply from: [mmeade](https://wordpress.org/support/users/mmeade/)
 * Last activity: [15 years, 4 months ago](https://wordpress.org/support/topic/warning-array_keys-functionarray-keys-1/#post-1891319)
 * Status: not resolved

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