Title: Update to Codex loop page
Last modified: August 19, 2016

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# Update to Codex loop page

 *  [wmmead](https://wordpress.org/support/users/wmmead/)
 * (@wmmead)
 * [15 years, 6 months ago](https://wordpress.org/support/topic/update-to-codex-loop-page/)
 * Hello, I have an update to the codex page on the loop. I am not sure I am putting
   this comment in the correct location. Please let me know if I should be putting
   it elsewhere.
 * I have multiple loops running on a magazine style site and do not want duplicate
   posts from one column to the next. I followed the procedure found on the codex,
   which was working, but I was getting an error in my error log telling me that
   the data type for the second argument in the is_array() function was not the 
   correct type.
 * Upon looking up the function on the PHP.net site, I modified the use of the function
   in the loop like this:
 * `if ( in_array( $post->ID, $do_not_duplicate, true ) ) continue;?>`
 * I added the word “true”. This keeps the errors from being generated in the error
   log. I think this is fairly new to PHP and should, I am guessing be added to 
   the codex page. The code was working without it, but it was generating the error.
   I don’t think a lot of people check their error log file so they probably have
   no idea.
 * I hope this helps someone, and let me know if I should be posting this info somewhere
   else.

Viewing 1 replies (of 1 total)

 *  [Rev. Voodoo](https://wordpress.org/support/users/rvoodoo/)
 * (@rvoodoo)
 * [15 years, 6 months ago](https://wordpress.org/support/topic/update-to-codex-loop-page/#post-1805303)
 * well, if you have an edit for the codex, you should be posting it there! The 
   codex is community driven

Viewing 1 replies (of 1 total)

The topic ‘Update to Codex loop page’ is closed to new replies.

## Tags

 * [duplicate posts](https://wordpress.org/support/topic-tag/duplicate-posts/)
 * [loop](https://wordpress.org/support/topic-tag/loop/)
 * [multiple loops](https://wordpress.org/support/topic-tag/multiple-loops/)

 * In: [Requests and Feedback](https://wordpress.org/support/forum/requests-and-feedback/)
 * 1 reply
 * 2 participants
 * Last reply from: [Rev. Voodoo](https://wordpress.org/support/users/rvoodoo/)
 * Last activity: [15 years, 6 months ago](https://wordpress.org/support/topic/update-to-codex-loop-page/#post-1805303)
 * Status: not resolved

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