Title: Using a deprecated function
Last modified: August 21, 2016

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# Using a deprecated function

 *  [pnoonan](https://wordpress.org/support/users/pnoonan/)
 * (@pnoonan)
 * [12 years, 10 months ago](https://wordpress.org/support/topic/using-a-deprecated-function/)
 * Here’s the error message I got:
 * > Deprecated: Function split() is deprecated in /mnt/stor0-wc2-dfw1/468595/840907/
   > www.k2logistics.com/web/content/wp-content/plugins/wordpress-wp-nav-menu-filter/
   > wp_nav_menu_filter.php on line 35
 * It seems to only happen when the submenu would have only one item. But I’m not
   certain.
 * The manual says split() should be replaced with preg_split(), although I think
   you could just get by with explode() in this case. Just thought I’d flag it.
 * Great plugin, by the way! Very useful. Thanks –
 * Patrick Noonan
 * [http://wordpress.org/extend/plugins/wordpress-wp-nav-menu-filter/](http://wordpress.org/extend/plugins/wordpress-wp-nav-menu-filter/)

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 * 0 replies
 * 1 participant
 * Last reply from: [pnoonan](https://wordpress.org/support/users/pnoonan/)
 * Last activity: [12 years, 10 months ago](https://wordpress.org/support/topic/using-a-deprecated-function/)
 * Status: not resolved