Title: Warning: in_array()
Last modified: September 1, 2016

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# Warning: in_array()

 *  [sergio.pinna.prato](https://wordpress.org/support/users/sergiopinnaprato/)
 * (@sergiopinnaprato)
 * [9 years, 11 months ago](https://wordpress.org/support/topic/warning-in_array-4/)
 * Hi,
 * I’m using your plugin, but the output is:
    ” Warning: in_array() expects parameter
   2 to be array, null given in /home/sergiopi/public_html/wp-content/plugins/wp-
   optimize-it/lib/wpl.class.php on line 71″
 * [https://wordpress.org/plugins/wp-optimize-it/](https://wordpress.org/plugins/wp-optimize-it/)

The topic ‘Warning: in_array()’ is closed to new replies.

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## Tags

 * [in_array](https://wordpress.org/support/topic-tag/in_array/)
 * [warning](https://wordpress.org/support/topic-tag/warning/)

 * 0 replies
 * 1 participant
 * Last reply from: [sergio.pinna.prato](https://wordpress.org/support/users/sergiopinnaprato/)
 * Last activity: [9 years, 11 months ago](https://wordpress.org/support/topic/warning-in_array-4/)
 * Status: not resolved