Category Archives: PHP

Change WordPress heartbeat rate to lower server load

WordPress heartbeat is made to save your articles automatically but it can slow down your server depending on your site size and all the plugins you got. If you’d like to stil use the feature but lower its saving rate, you can use the following code :

add_action( 'init', 'customize_heartbeat', 1 );

function customize_heartbeat() {

// Register the wordpress native script if necessary

if (!wp_script_is('heartbeat', 'registered')) {

wp_register_script('heartbeat', includes_url('js/heartbeat.min.js'), array('jquery'), null, true);


// Active with a custom interval

add_filter('heartbeat_settings', 'set_heartbeat_interval');


function set_heartbeat_interval($settings) {
 // Define interval in seconds
 $settings['interval'] = 120; // Example for 2 minutes (60x2)
 return $settings;

How to add a custom H1 title to a tag page

By default wordpress writes an H1 with the tag term, which can be very limited in terms of SEO. For instance, you may have a tag page title “USA” instead of “News from the United States of America” if your tag is only “USA”. To improve that without any plugin, open your theme’s functions.php file and add the following lines :

CUSTOM H1 TITLES FOR TAGS PAGES by Ghyslain 3 mai 2023

function add_custom_h1_title_field( $term ) {
$term_id = $term->term_id;
$custom_h1_title = '';
if ( isset( $_POST['custom_h1_title'] ) ) {
$custom_h1_title = sanitize_text_field( $_POST['custom_h1_title'] );
} elseif ( $term_id ) {
$custom_h1_title = get_term_meta( $term_id, 'custom_h1_title', true );
<div class="form-field term-group">
<label for="custom_h1_title"><?php _e( 'Custom H1 title', 'text-domain' ); ?></label>
<input type="text" class="form-field" name="custom_h1_title" id="custom_h1_title" value="<?php echo esc_attr( $custom_h1_title ); ?>">

add_action( 'post_tag_edit_form_fields', 'add_custom_h1_title_field' );
add_action( 'product_tag_add_form_fields', 'add_custom_h1_title_field' );

function save_custom_h1_title_field( $term_id ) {
if ( isset( $_POST['custom_h1_title'] ) ) {
update_term_meta( $term_id, 'custom_h1_title', sanitize_text_field( $_POST['custom_h1_title'] ) );
add_action( 'edited_post_tag', 'save_custom_h1_title_field' );
add_action( 'created_post_tag', 'save_custom_h1_title_field' );

You will get a new text field in your admin edit screen called “Custom H1 title”.
Now in your theme’s tag.php file, replace the lines where the H1 was being called by :

$custom_h1_title = get_term_meta(get_queried_object_id(), 'custom_h1_title', true);
if ($custom_h1_title) {
echo esc_html($custom_h1_title);
} else {

WordPress : How to disable updates for a specific plugin

If you modified a plugin and don’t want it to appear in the updates list, use this function from rniswonger in your functions.php

 * Prevent update notification for plugin
 * Place in theme functions.php or at bottom of wp-config.php
 function disable_plugin_updates( $value ) {
    $pluginsToDisable = [
    if ( isset($value) && is_object($value) ) {
        foreach ($pluginsToDisable as $plugin) {
            if ( isset( $value->response[$plugin] ) ) {
                unset( $value->response[$plugin] );
    return $value;
add_filter( 'site_transient_update_plugins', 'disable_plugin_updates' );

Magpie RSS and special characters

Your site is not in english and you are trying to import an RSS feed by using the excellent Magpie RSS ? If the feed language is in french for instance you’ll probably get weird characters coming up on your display page.

The solution is pretty simple. Go in the folder where Magpie RSS is installed and look for

Around line 357 set the default output and input encoding to UTF-8 like this :

  if ( !defined('MAGPIE_OUTPUT_ENCODING') ) {
 if ( !defined('MAGPIE_INPUT_ENCODING') ) {