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WordPress WordPress Hooks - Actions and Filters Filter Functions in WordPress Real World Examples of WordPress Filters

Nicholas Jacob
Nicholas Jacob
7,536 Points
Posted by Nicholas Jacob
Nicholas Jacob
7,536 Points

Why did Zac globalize the variable $page in the first example function named custom_wp_title? Can't figure this out.

Why did Zac globalize the variable $page in the first example function named custom_wp_title? I can't figure this out why he puts global $page in the function as he never does anything with $page after he globalizes it. Would the function still work without it or am I missing something? Thanks!

2 Answers

Nattapol Kamolbal
Nattapol Kamolbal
15,528 Points
Nattapol Kamolbal
Nattapol Kamolbal
15,528 Points

I guess that the is_home() and is_front_page() use the $page information. Since he create new function, is_home() and is_font_page() can't access the $page info unless you globalize it in the function.

I can't find the documentation for this issue so I'm not 100% sure. Please correct me if I am wrong.

Muhammad Ehsan Hanif
Muhammad Ehsan Hanif
8,236 Points
Muhammad Ehsan Hanif
Muhammad Ehsan Hanif
8,236 Points

You may want to check the below link to understand the global variables used by wordpress.

https://codex.wordpress.org/Global_Variables