Wordpress Image Optimizer

image-optimizer.md

Setup

1. Create a new folder in your WordPress wp-content/plugins directory and name it image-optimizer.
2. Inside this folder, create a PHP file named image-optimizer.php and paste the following code:

<?php
/**
 * Plugin Name: Image Optimizer
 * Description: Optimizes images in a given directory without loss of quality.
 * Version: 1.0
 * Author: Your Name
 */

// Hook for adding admin menus
add_action('admin_menu', 'image_optimizer_menu');

// Action function for the above hook
function image_optimizer_menu() {
    add_menu_page('Image Optimizer', 'Image Optimizer', 'manage_options', 'image_optimizer', 'image_optimizer_page');
}

// Function to display the admin page
function image_optimizer_page() {
    ?>
    <div class="wrap">
        <h2>Image Optimizer</h2>
        <form method="post" action="">
            <label for="directory">Directory Path:</label>
            <input type="text" id="directory" name="directory" required>
            <input type="submit" name="optimize_images" value="Optimize Images">
        </form>
        <?php
        if (isset($_POST['optimize_images'])) {
            $directory = sanitize_text_field($_POST['directory']);
            $result = optimize_images($directory);
            echo '<div id="message" class="updated notice is-dismissible"><p>' . $result . '</p></div>';
        }
        ?>
    </div>
    <?php
}

// Function to optimize images
function optimize_images($directory) {
    if (!class_exists('Imagick')) {
        return "Error: Imagick not installed.";
    }

    if (!is_dir($directory)) {
        return "Error: Invalid directory.";
    }

    $files = glob($directory . '/*.{jpg,png}', GLOB_BRACE);
    if (empty($files)) {
        return "Error: No image files found in the directory.";
    }

    $log = fopen(plugin_dir_path(__FILE__) . 'image_optimizer_log.txt', 'a');
    fwrite($log, "Optimization started at " . date('Y-m-d H:i:s') . "\n");

    foreach ($files as $file) {
        try {
            $image = new Imagick($file);
            $image->stripImage();
            $image->writeImage($file);
            $image->clear();
            $image->destroy();
            fwrite($log, "Optimized: " . $file . "\n");
        } catch (Exception $e) {
            fwrite($log, "Error optimizing: " . $file . " - " . $e->getMessage() . "\n");
        }
    }

    fclose($log);
    return "Images optimized successfully. Check the log for details.";
}
?>

How to Use

1. Activate the Plugin: Go to the WordPress admin dashboard, navigate to "Plugins", and activate the "Image Optimizer" plugin.
2. Use the Plugin: After activation, you'll see a new menu item called "Image Optimizer". Click on it, and you'll be taken to a page where you can enter the directory path of the images you want to optimize. After entering the path, click "Optimize Images".

Note: Make sure the Imagick PHP extension is installed and enabled on your server for this plugin to work.