Get the header template and bottom template in WordPress theme writing

get_header() (get the header)
Introduce the header template of the theme. By default, the header.php file in the current theme directory will be imported. If a name is specified, the header-{name}.php file in the current theme directory will be imported. If the file to be imported does not exist, the wp-includes/theme-compat/header.php file will be imported.

Usage

get_header( $name );

Parameters

$name

(String) (optional) The name of the file to be imported. If specified, the header-{$name}.php file will be imported.

Example

The above code will import the header.php file in the root directory of the current theme.

The above code will import the header-main.php file in the root directory of the current theme.

if( is_home() ) get_header( 'home' );
elseif( is_404() ) get_header( '404' );
else get_header();

The above code will import the header-home.php file of the current theme root directory on the homepage, the 404 page will import the header-404.php file of the current theme root directory, and other pages will import the header of the current theme root directory. php file.

Others

This function is located at: wp-includes/general-template.php

get_footer() (get the bottom)
get_footer() is used to introduce the bottom template file. If a name is specified, the footer-{name}.php file in the root directory of the current theme will be imported. If not specified, the footer.php file in the root directory of the current theme will be imported. If the file does not exist, wp-includes/theme-compat/footer will be imported. php file.

Usage

get_footer( $name );

Parameters

$name

(String) (optional) Introduce the name of the template, if specified, introduce the footer-{$name}.php file.

Return value

This function has no return value.

Example

Introduce the footer.php file in the root directory of the current theme:

Introduce the footer-new.php file in the root directory of the current theme:

Introduce different bottom template files according to different pages:

if( is_404() ) get_footer( '404' );//如果是 404 页则引入当前主题根目录的 footer-404.php 文件
elseif( is_home() ) get_footer( 'home' );//如果是首页则引入当前主题根目录的 footer-home.php 文件
else get_footer();//如果不是首页或者 404 页则引入当前主题根目录的 footer.php 文件

Others

This function is located at: wp-includes/general-template.php

The above introduces how to obtain the header template and bottom template in WordPress theme writing, including the content. I hope it will be helpful to friends who are interested in PHP tutorials.