WordPress函数set_theme_mod()

描述：

更新当前主题的自定义修改值

用法：

<?php set_theme_mod( $name, $value ); ?>

参数：

$name
(string) (必填) 要更新的主题自定义名称

默认值: None

$value

(string) (必填) 要更新的主题自定义值

默认值: None

源文件：

/**
 * Update theme modification value for the current theme.
 *
 * @since 2.1.0
 *
 * @param string $name  Theme modification name.
 * @param mixed  $value Theme modification value.
 */
function set_theme_mod( $name, $value ) {
	$mods = get_theme_mods();
	$old_value = isset( $mods[ $name ] ) ? $mods[ $name ] : false;

	/**
	 * Filter the theme mod value on save.
	 *
	 * The dynamic portion of the hook name, `$name`, refers to the key name of
	 * the modification array. For example, 'header_textcolor', 'header_image',
	 * and so on depending on the theme options.
	 *
	 * @since 3.9.0
	 *
	 * @param string $value     The new value of the theme mod.
	 * @param string $old_value The current value of the theme mod.
	 */
	$mods[ $name ] = apply_filters( "pre_set_theme_mod_$name", $value, $old_value );

	$theme = get_option( 'stylesheet' );
	update_option( "theme_mods_$theme", $mods );
}