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I need to create QR code for custom post type page link in backend to save in post meta and show in meta box in WordPress

Green Team answered on June 18, 2023 Popularity 1/10 Helpfulness 1/10

answer I need to create QR code for custom post type page link in backend to save in post meta and show in meta box in WordPress

I need to create QR code for custom post type page link in backend to save in post meta and show in meta box in WordPress

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<?php
add_action('save_post', 'generate_qr_code', 10, 3);
function generate_qr_code($post_id, $post, $update) {
    // If this isn't a 'book' post, don't update it.
    if ( 'book' != $post->post_type ) {
        return;
    }
    
    // Avoid infinite loops
    if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE)
        return;
    if (defined('DOING_AJAX') && DOING_AJAX)
        return;
    if (wp_is_post_revision($post_id))
        return;
    if (wp_is_post_autosave($post_id))
        return;

    // Get permalink
    $url = get_permalink($post_id);

    // Generate QR Code
    $qrCode = new \Endroid\QrCode\QrCode($url);
    $qrCode->writeFile(__DIR__ . '/qrcodes/' . $post_id . '.png');

    // Store the file URL in the post meta
    $file_url = plugin_dir_url(__FILE__) . 'qrcodes/' . $post_id . '.png';
    update_post_meta($post_id, '_qr_code', $file_url);
}

add_action('add_meta_boxes', 'qr_code_meta_box');
function qr_code_meta_box() {
    add_meta_box('qr_code_meta_box_id', 'QR Code', 'display_qr_code_meta_box', 'book', 'side', 'high');
}

function display_qr_code_meta_box($post) {
    $qr_code_url = get_post_meta($post->ID, '_qr_code', true);
    if($qr_code_url) {
        echo '<img src="' . esc_url($qr_code_url) . '" />';
    } else {
        echo 'QR Code not generated yet.';
    }
}
?>

Popularity 1/10 Helpfulness 1/10 Language php

Source: chat.openai.com

Tags: backend box custom-post-type meta php post-meta qr-code save show wordpress

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Contributed on Jun 18 2023

Green Team

0 Answers Avg Quality 2/10

I need to create QR code for custom post type page link in backend to save in post meta and show in meta box in WordPress

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