Title: ob_start() function
Last modified: August 20, 2016
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# ob_start() function
* [Gianluigi](https://wordpress.org/support/users/lastninja/)
* (@lastninja)
* [13 years, 4 months ago](https://wordpress.org/support/topic/ob_start-function/)
* Hi all,
I want to edit the header of a template theme to insert a slideshow.
I dont knw where header code is! Here’s the code of header.php:
* ```
>
<?php wp_title( '|', true, 'right' ); bloginfo( 'name' ); ?>
>