解决 WordPress 停用 Polylang 插件报错问题

码拜

6年 ago

上一篇介绍了 wordpress 中 Polylang 插件的应用。多语言网站轻松实现了，后来因为某些原因需要临时停用 Polylang 插件，问题来了。在插件列表点击停用后，后台报错了。修改 web-config.php 文件，让错误显示出来。错误如下：

Fatal error: Uncaught Error: Call to undefined function pll_register_string() in
/home/.../wp-content/themes/codebye.com/functions.php:19 Stack trace: #0
/home/.../wp-includes/class-wp-hook.php(286): {closure}('') #1
/home/.../wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array) #2
/home/.../wp-includes/plugin.php(465): WP_Hook->do_action(Array) #3
/home/.../wp-settings.php(525): do_action('init') #4
/home/.../wp-config.php(90): require_once('/home/mybitwor/...') #5
/home/.../wp-load.php(37): require_once('/home/mybitwor/...') #6
/home/.../wp-admin/admin.php(34): require_once('/home/mybitwor/...') #7
/home/.../wp-admin/plugins.php(10): require_once('/home/mybitwor/...') #8
{main} th in /home/.../wp-content/themes/codebye.com/functions.php on line 19

问题原因：polylang插件停用后，pll_register_string 找不到了。

处理方式：修改functions.php

function codebyecom_after_setup_theme() {
    if ( function_exists( 'pll_register_string' ) ) {
		pll_register_string('custom', 'codebye');
    }
}
 add_action( 'after_setup_theme', 'codebyecom_after_setup_theme' );

function pl_e( $string = '' ) {
    if ( function_exists( 'pll_e' ) ) {
        pll_e( $string );
    } else {
        echo $string;
    }
}

经过上述修改后，停用polylang插件恢复正常。