Wordpress Developers

• wp_siteurl in config
• remove version number in WordPress
• to increase memory power in wordpress
• default table of WordPress
• to perform database query in WordPress
• wordpress default spam protection plugin default
• WordPress get page by url
• default taxonomies in wordpress
• support for post thumbnail
• Basics of Wordpress
• wpdb::flush

wp_siteurl in config

    define('WP_SITEURL', 'http://yourdomain.com');

remove version number in WordPress

    remove_action('wp_head', 'wp_generator');
    add_filter('the_generator', '__return_empty_string');

    function remove_version_from_scripts_styles($src) {
        if (strpos($src, 'ver=')) {
            $src = remove_query_arg('ver', $src);
        }
        return $src;
    }
    add_filter('style_loader_src', 'remove_version_from_scripts_styles', 9999);
    add_filter('script_loader_src', 'remove_version_from_scripts_styles', 9999);

to increase memory power in wordpress

1. Access your WordPress files via FTP or your hosting file manager.
2. Locate and open the wp-config.php file in the root directory.
3. Find the line that reads /* That's all, stop editing! Happy publishing. */.
4. Right before this line, add the following code: define('WP_MEMORY_LIMIT', '256M');.
5. Save the file. 

1. Access your WordPress files and locate the .htaccess file in the root directory (you may need to enable "Show Hidden Files" in your file manager).
2. Make a backup of the file before editing.
3. Add the following line to the file: php_value memory_limit 256M.
4. Save the file and upload it back to your server. 

• Hosting control panel: Log in to your hosting account and find the PHP settings (e.g., MultiPHP INI Editor in cPanel or PHP Configuration in hPanel). Change the memory_limit there and save your changes.
• Contact your hosting provider: If the above methods don't work, your host may have specific instructions or can change the setting for you.
• Upgrade your hosting plan: In some cases, your current hosting plan may have a hard limit on memory, and an upgrade might be necessary to increase it further. 

default table of WordPress

to perform database query in WordPress

    global $wpdb;

    $query = $wpdb->prepare(
        "SELECT * FROM {$wpdb->prefix}posts WHERE post_status = %s AND post_type = %s",
        'publish',
        'post'
    );

        $results = $wpdb->get_results( $query );
        // or
        $results = $wpdb->get_results( $query, ARRAY_A ); // for associative arrays

        $row = $wpdb->get_row( $query );

        $user_count = $wpdb->get_var( "SELECT COUNT(*) FROM {$wpdb->users}" );

        $post_titles = $wpdb->get_col( "SELECT post_title FROM {$wpdb->posts}" );

        $rows_affected = $wpdb->query( $wpdb->prepare(
            "DELETE FROM {$wpdb->postmeta} WHERE post_id = %d AND meta_key = %s",
            13,
            'stars'
        ));

        $wpdb->insert(
            "{$wpdb->prefix}mytable",
            array(
                'column1' => 'value1',
                'column2' => 'value2',
            ),
            array( '%s', '%d' ) // Format of values
        );

        $wpdb->update(
            "{$wpdb->prefix}mytable",
            array( 'column1' => 'new_value' ), // Data to update
            array( 'id' => 1 ), // WHERE clause
            array( '%s' ), // Format of updated values
            array( '%d' ) // Format of WHERE clause values
        );

        $wpdb->delete(
            "{$wpdb->prefix}mytable",
            array( 'id' => 1 ), // WHERE clause
            array( '%d' ) // Format of WHERE clause values
        );

wordpress default spam protection plugin default

WordPress get page by url

<?php
// Define the full URL of the page
$page_url = 'https://example.com/about-us/our-team/';

// Extract the path from the URL
$path = parse_url( $page_url, PHP_URL_PATH );

// Remove leading/trailing slashes and any file extensions if present
$path = trim( $path, '/' );
$path = preg_replace( '/\.(php|html)$/', '', $path ); // Remove .php or .html if present

// Get the page object by its path
$page = get_page_by_path( $path );

if ( $page ) {
    // Page found, you can now access its properties
    echo 'Page Title: ' . $page->post_title;
    echo 'Page ID: ' . $page->ID;
    // You can access other properties like $page->post_content, $page->post_status, etc.
} else {
    echo 'Page not found for the given URL.';
}
?>

default taxonomies in wordpress

support for post thumbnail

    add_theme_support( 'post-thumbnails' );

    function mytheme_setup() {
        add_theme_support( 'post-thumbnails' );
    }
    add_action( 'after_setup_theme', 'mytheme_setup' );

    add_theme_support( 'post-thumbnails', array( 'post', 'page', 'my_custom_post_type' ) );

Basics of Wordpress

wpdb::flush

global $wpdb;

// Perform a query, results are cached
$results1 = $wpdb->get_results( "SELECT * FROM {$wpdb->prefix}options WHERE option_name = 'my_option'" );

// Clear the wpdb internal cache
$wpdb->flush();

// Perform the same query again, it will now re-query the database
$results2 = $wpdb->get_results( "SELECT * FROM {$wpdb->prefix}options WHERE option_name = 'my_option'" );