It is somewhat counter-intuitive but WordPress loads child’s theme code before parent’s theme. So wrapping anything in function_exists() in child theme does nothing, it’s parent theme that needs to have that. Better option is to unhook parent’s theme function (unless it’s run right at load, which it should not do) and hook your own.
You can’t override it, because this function is not pluggable and is a part of WP core. All what you can do is to add your hook for action wp_insert_comment, as you’ve actually done.
Override default new user registration email with custom message (non sub-domain multi-site installation)
Replace part of a parent-theme customizer in the child-theme
Extend plugin Class through functions.php
How to override Woocommerce functionality in Reports section?
It’s better not to do so. And I’m completely against overriding the default authentication mechanism simply because of WordPress and it’s plugins usually are depended on the website’s database. But if you’re really into this situation WordPress provides a filter called authenticate: add_filter( ‘authenticate’, ‘wpse75679_auth’, 30, 3 ); function wpse75679_auth( $user, $username, $password ) { … Read more
In functions.php look for lines like update_option(‘siteurl’,’http://blog.financialcoachshow.com/blueocean/institutional’); update_option(‘home’,’http://blog.financialcoachshow.com/blueocean/institutional’); Delete them!
If the plugin displays content via any function, the code: if(!function_exists(‘function_name’)) function_name(); … is used for safety. If your plugin is disabled, and the if (!function_exists(‘function_name’)) is missing, your theme will throw a fatal error.
Scroll down a little bit, most of it is WordPress default code but you must add everything to your plugin or you might break it! I’ve also added few useful snippets below. Copy-paste them to same plugin. <?php /* * Plugin Name: Emails * Plugin URI: http://www.your-site.com * Description: Different registration email for different roles … Read more