Use <a href="https://wordpress.org/plugins/to-title-case/" rel="ugc">To Title Case</a> instead!

Title Case

Use To Title Case instead! https://wordpress.org/plugins/to-title-case/

Ryan McCue

Automatically convert post titles on-the-fly, using 
<a href="http://camendesign.com/code/title-case" rel="nofollow ugc">Kroc Camen’s port</a> of 
<a href="http://daringfireball.net/2008/05/title_case" rel="nofollow ugc">John Gruber’s title case</a>. All 
most all of the code was written by Kroc Camen, so he deserves the credit. 
Credit also to David Gouch and John Gruber, who wrote the 
<a href="http://individed.com/code/to-title-case/" rel="nofollow ugc">Javascript port</a> and original Perl 
versions respectively.

To Title Case

Automatically convert post titles on-the-fly, using Kroc Camen's port of John Gruber's title case.

Title Case vs To Title Case