Title: PHP Notice: wp_enqueue_script was called incorrectly
Last modified: August 30, 2016

---

# PHP Notice: wp_enqueue_script was called incorrectly

 *  Resolved [roggershaw](https://wordpress.org/support/users/roggershaw/)
 * (@roggershaw)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/php-notice-wp_enqueue_script-was-called-incorrectly-1/)
 * I am using Nix Gravatar Cache plugin of WordPress which are not updated from 
   last 12 months. It throws the following two errors while debugging.
 * PHP Notice: register_uninstall_hook was called incorrectly. Only a static class
   method or function can be used in an uninstall hook.
 * PHP Notice: wp_enqueue_script was called incorrectly. Scripts and styles should
   not be registered or enqueued until the wp_enqueue_scripts, admin_enqueue_scripts,
   or login_enqueue_scripts hooks. Please see Debugging in WordPress for more information.
 * Here are the php file. If anybody can correct the issue. I don’t know how to 
   operate PHP and never used it in my life. I will be really thankful if anybody
   can correct the below file.
 *     ```
       <?php
       /*
       Plugin Name: NIX Gravatar Cache
       Author: NIX Solutions Ltd
       Version: 0.0.6
       Description: Cache Gravatar in your Host and speed up your site
       Author URI: http://nixsolutions.com/departments/cms/
       */
   
       class NFGC_Gravatar_Cache {
   
           protected $upload_url;
           protected $upload_path;
           protected $plugin_dir_path;
   
           public $plugin_name = 'NIX Gravatar Cache';
   
           function __construct(){
               if ( get_option( 'upload_url_path' ) ) {
                   $this->upload_url  = get_option( 'upload_url_path' );
                   $this->upload_path = get_option( 'upload_path' );
               }
               else {
                   $up_dir = wp_upload_dir();
   
                   $this->upload_url  = $up_dir['baseurl'];
                   $this->upload_path = $up_dir['basedir'];
               }
   
               $this->plugin_dir_path = plugin_dir_path( __FILE__ );
   
               require_once $this->plugin_dir_path . '/messages.class.php';
               NFGC_Messages::init();
   
               $active = get_option( 'nf_c_a_options' );
               if ( $active[0]['active'] == 1 ) {
                   add_filter( 'get_avatar', array( $this,'get_cached_avatar' ), -1000000000, 5 );
               }
   
               add_action( 'admin_menu', array( $this,'add_admin_menu' ) );
               register_activation_hook( __FILE__, array( $this, 'activate' )  );
               $this->init();
   
               register_deactivation_hook( __FILE__, array( $this, 'deactivate' ) );
               register_uninstall_hook( __FILE__ , array( $this, 'uninstall' ) );
   
               if ( !is_writable( $this->upload_path.'/gravatar/' ) && is_dir( $this->upload_path.'/gravatar/' ) ) {
                   NFGC_Messages::add_message( 'error', 'Please set write permissions for "'. $this->upload_path .'/gravatar/"' );
               }else{
                   if ( @!mkdir( $this->upload_path.'/gravatar/', 0777 ) && ! is_dir( $this->upload_path.'/gravatar/' ) ) {
                       NFGC_Messages::add_message( 'error', 'Could not create directory "gravatar". Please set write permissions for "'. $this->upload_path .'/gravatar/"'  );
                   }
               }
   
               if ( isset ( $_POST['nf_clear_cache'] ) )
                   $this->clear_cache();
   
           }
   
           public function get_template_path() {
               return $this->plugin_dir_path .'template';
           }
   
           // Activate plugin and update default option
           public function activate() {
   
               $dir = $this->upload_path.'/gravatar/';
   
               // delete_option('nf_c_a_options');
               if ( get_option( 'nf_c_a_options' ) == false ) {
                   $default_options = array('active'   => 1,
                                            'ttl_day'  => 10,
                                            'ttl_hour' => 0,
                                            'ttl_min'  => 0
                                           );
                   update_option( 'nf_c_a_options', array( $default_options ) );
               }
   
           }
   
           // Deactivate plugin and clear cache
           public function deactivate() {
   
               $this->clear_cache();
   
           }
   
           // Notice in plugin options page
           public function admin_help_notice() {
               global $current_screen;
               if ( $current_screen->base == 'settings_page_'. basename( __FILE__,'.php' ) ) {
                   return true;
               }
           }
   
           // convert ttl option to second
           private function cache_to_second(){
               $cache_time = get_option( 'nf_c_a_options' );
               $cache_time = array_reverse( $cache_time[0] );
   
               $action = array();
               foreach ( $cache_time as $key => $value ) {
                   if ( $key == 'active' )
                       continue;
   
                   switch ( $key ) {
                       case 'ttl_min':
                           $cache_second = $value != 0 ? $value*60 : '';
                           break;
                       case 'ttl_hour':
                           $cache_second = $value != 0 ? ( $value*60*60 ) + $cache_second : $cache_second;
                           break;
                       case 'ttl_day':
                           $cache_second = $value != 0 ? ( $value*60*60*24 ) + $cache_second : $cache_second;
                           break;
                   }
   
               }
   
               if ( ! $cache_second ) {
                   $cache_second = 864000;// TTL of cache in seconds (10 days)
   
               }
   
               return $cache_second;
           }
   
           // The main functional
           public function get_cached_avatar( $source, $id_or_email, $size, $default, $alt ) {
   
               if ( !is_writable( $this->upload_path.'/gravatar/' ) || is_admin() ) {
                   return $source;
               }
               $time = $this->cache_to_second();
   
               preg_match('/d=([^&]*)/', $source, $d_tmp);
               $g_url_default_sorce = isset($d_tmp[1]) ? $d_tmp[1] : false;
   
               preg_match('/forcedefault=([^&]*)/', $source, $d_tmp);
               $g_forcedefault = isset($d_tmp[1]) ? $d_tmp[1] : false;
   
               preg_match('/avatar\/([a-z0-9]+)\?s=(\d+)/', $source, $tmp);
               $garvatar_id = $tmp[1];
   
               $file_name      = md5($garvatar_id.$g_url_default_sorce);
               $g_path         = $this->upload_path.'/gravatar/'.$file_name.'-s'.$size.'.jpg';
               $g_path_default = $this->upload_path.'/gravatar/default'.'-s'.$size.'.jpg';
               $g_url          = $this->upload_url.'/gravatar/'.$file_name.'-s'.$size.'.jpg';
               $g_url_default  = $this->upload_url.'/gravatar/'.'default'.'-s'.$size.'.jpg';
   
               // Check cache
               static $nf_avatars_cache = null;
               if ($nf_avatars_cache === null)    $nf_avatars_cache = get_option('nf_avatars_cache');
               if (! is_array($nf_avatars_cache)) $nf_avatars_cache = array();
   
               if (isset($nf_avatars_cache[$garvatar_id][$size])) {
                   $g_url  = $nf_avatars_cache[$garvatar_id][$size]['url'];
                   $g_path = $nf_avatars_cache[$garvatar_id][$size]['path'];
               }
   
               if (! is_file($g_path) || (time()-filemtime($g_path)) > $time) {
                   $curl_url = 'http://www.gravatar.com/avatar/'.$garvatar_id.'?s='.$size.'&r=G&d='.$g_url_default_sorce;
   
                   $ch = curl_init($curl_url);
                   curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
                   curl_setopt($ch, CURLOPT_VERBOSE, 1);
                   curl_setopt($ch, CURLOPT_HEADER, 1);
                   $response    = curl_exec($ch);
                   $header_size = curl_getinfo($ch, CURLINFO_HEADER_SIZE);
                   $header      = substr($response, 0, $header_size);
   
                   // Checking for redirect
                   $header_array = array();
                   preg_match('/^Location\: (.*)$/m', $header, $header_array);
                   $redirect_url = isset($header_array[1]) ? $header_array[1] : false;
   
                   if ($redirect_url) {
                       $g_url  = $g_url_default;
                       $g_path = $g_path_default;
                       if (! is_file($g_path) || (time()-filemtime($g_path)) > $time) {
                           copy($redirect_url, $g_path);
                       }
                   }
                   else {
                       // Check mime type
                       $mime_str   = curl_getinfo( $ch, CURLINFO_CONTENT_TYPE );
                       $mime_array = array();
                       preg_match( '#/([a-z]*)#i', $mime_str, $mime_array );
   
                       if (isset($mime_array[1])) {
                           // Write cache to file
                           $fp   = fopen( $g_path, "wb" );
                           $body = substr( $response, $header_size );
                           fwrite( $fp, $body );
                           fclose( $fp );
                       }
                   }
                   curl_close($ch);
   
                   $nf_avatars_cache[$garvatar_id][$size]['url']  = $g_url;
                   $nf_avatars_cache[$garvatar_id][$size]['path'] = $g_path;
                   update_option( 'nf_avatars_cache', $nf_avatars_cache );
               }
   
               return '<img alt="" src=\''.$g_url.'\' class="avatar avatar-'.$size.'" width="'.$size.'" height="'.$size.'" />';
           }
   
           // Create plugin option settings menu
           public function add_admin_menu() {
               // settings menu page
              add_options_page( 'Cached Avatar ', $this->plugin_name, 'manage_options', basename( __FILE__ ), array( $this,'view_options_page' ) );
           }
   
           // Create page option
           public function view_options_page() {
               // update options
   
               if ( isset( $_POST['nf_c_a_submit'] ) ) {
                   $update_val_options = $_POST['nf_c_a_options'];
   
                   foreach ( $update_val_options as $option => $value ) {
                       $update_val_options[$option] = abs( intval( $value ) );
                   }
   
                   if( $update_val_options['ttl_min'] == 0 && $update_val_options['ttl_hour'] == 0 && $update_val_options['ttl_day'] == 0 ) {
                       $update_val_options['ttl_day'] = 10;
                   }
   
                   update_option( 'nf_c_a_options', array( $update_val_options ) );
   
               }
   
               $options = get_option( 'nf_c_a_options' );
   
               include( $this->get_template_path() .'/main-options-page.php');
           }
   
           private function clear_cache() {
               $dir = $this->upload_path.'/gravatar/';
               $no_permision_to_delete = false;
   
               // Open directory
               if ( is_dir( $dir ) ) {
                   if ( $opendir = opendir( $dir ) ) {
                       $count = 0;
                       while ( ( $file = readdir( $opendir ) ) !== false ) {
                           if ( filetype( $dir . $file ) == 'file' ) {
                               if ( @unlink( $dir . $file ) ) {
                                   $count++;
                               }else {
                                   $no_permision_to_delete = true;
                               }
                           }
                       }
                       if ( $no_permision_to_delete ) {
                           NFGC_Messages::add_message( 'error','Unable to clear the cache' );
                       }else{
                           update_option('nf_avatars_cache', array() );
                           NFGC_Messages::add_message( 'info','The cache is cleared!' );
                           NFGC_Messages::add_message( 'info','Removed '.$count.' files' );
                       }
                       closedir( $opendir );
                   }
               }
          }
   
           // return count and size
           public function get_cache_info() {
               $dir  = $this->upload_path.'/gravatar/';
               $skip = array('.','..');
               $unit = array('b', 'kb', 'mb', 'gb', 'tb', 'pb');
   
               if ( is_dir( $dir ) ) {
                  $file_list = scandir( $dir );
   
                  // delete . and ..
                  foreach ( $skip as $value ) {
                      unset( $file_list[ array_search( $value, $file_list ) ] );
                  }
   
                  // sum files size
                  foreach ( $file_list as $file ) {
                      $size     = filesize( $dir . $file );
                      $all_size = $all_size + $size;
                  }
               }
   
               $readable_form = @round( $all_size / pow( 1024, ( $i = floor( log( $all_size, 1024) ) ) ), 2 ) . ' ' . $unit[$i];
   
               return array( 'amount' => count( $file_list ) , 'used_space' => $readable_form );
          }
   
           private function init() {
               wp_enqueue_script( 'nfgc-main-script', plugins_url( '/js/main.js', __FILE__ ), array('jquery') );
               wp_enqueue_style( 'nfgc-main-style', plugins_url( '/css/style.css', __FILE__ ) );
          }
   
       }// Class
   
       global $nfgc;
       $nfgc = new NFGC_Gravatar_Cache();
       ```
   

Viewing 6 replies - 1 through 6 (of 6 total)

 *  anonymized-13749270
 * (@anonymized-13749270)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/php-notice-wp_enqueue_script-was-called-incorrectly-1/#post-6636498)
 * Try replacing `init()` function with:
 *     ```
       add_action('wp_enqueue_scripts', function() {
               wp_enqueue_script( 'nfgc-main-script', plugins_url( '/js/main.js', __FILE__ ), array('jquery') );
               wp_enqueue_style( 'nfgc-main-style', plugins_url( '/css/style.css', __FILE__ ) );
       });
       ```
   
 *  Thread Starter [roggershaw](https://wordpress.org/support/users/roggershaw/)
 * (@roggershaw)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/php-notice-wp_enqueue_script-was-called-incorrectly-1/#post-6636568)
 * Thanks Samuel for providing me guidance. I tried the above code but it gives 
   me this error.
 * Parse error: syntax error, unexpected ‘add_action’ (T_STRING), expecting function(
   T_FUNCTION) in /wp-content/plugins/nix-gravatar-cache/nf-gravatar-cache.php on
   line 303
 * I think the name private function init() is used before in the code. What should
   i need to do. Thanks again for coming up with a solution.
 *  anonymized-13749270
 * (@anonymized-13749270)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/php-notice-wp_enqueue_script-was-called-incorrectly-1/#post-6636571)
 * Hi Rogger,
 * Actually I wanted to say, add that code inside the `private function init() {}`
   only functions are allowed within the class ..
    if it didn’t work out, try to
   put the code I gave you above, out of the main class (`NFGC_Gravatar_Cache`, 
   after `// Class` comment maybe)
 *  Thread Starter [roggershaw](https://wordpress.org/support/users/roggershaw/)
 * (@roggershaw)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/php-notice-wp_enqueue_script-was-called-incorrectly-1/#post-6636573)
 * Thanks Samuel for the guidance. As i am novice to PHP, All i understand is to
   paste this code like this, if i am correct?
 *     ```
       private function init() {
               add_action('wp_enqueue_scripts', function() {
               wp_enqueue_script( 'nfgc-main-script', plugins_url( '/js/main.js', __FILE__ ), array('jquery') );
               wp_enqueue_style( 'nfgc-main-style', plugins_url( '/css/style.css', __FILE__ ) );
       });
          }
   
       }// Class
       ```
   
 * Please tell me if this is the right way.
 *  anonymized-13749270
 * (@anonymized-13749270)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/php-notice-wp_enqueue_script-was-called-incorrectly-1/#post-6636576)
 * Not really, it would be better doing this:
 *     ```
       <?php
       /*
       Plugin Name: NIX Gravatar Cache
       Author: NIX Solutions Ltd
       Version: 0.0.6
       Description: Cache Gravatar in your Host and speed up your site
       Author URI: http://nixsolutions.com/departments/cms/
       */
   
       class NFGC_Gravatar_Cache {
   
           protected $upload_url;
           protected $upload_path;
           protected $plugin_dir_path;
   
           public $plugin_name = 'NIX Gravatar Cache';
   
           function __construct(){
               if ( get_option( 'upload_url_path' ) ) {
                   $this->upload_url  = get_option( 'upload_url_path' );
                   $this->upload_path = get_option( 'upload_path' );
               }
               else {
                   $up_dir = wp_upload_dir();
   
                   $this->upload_url  = $up_dir['baseurl'];
                   $this->upload_path = $up_dir['basedir'];
               }
   
               $this->plugin_dir_path = plugin_dir_path( __FILE__ );
   
               require_once $this->plugin_dir_path . '/messages.class.php';
               NFGC_Messages::init();
   
               $active = get_option( 'nf_c_a_options' );
               if ( $active[0]['active'] == 1 ) {
                   add_filter( 'get_avatar', array( $this,'get_cached_avatar' ), -1000000000, 5 );
               }
   
               add_action( 'admin_menu', array( $this,'add_admin_menu' ) );
               register_activation_hook( __FILE__, array( $this, 'activate' )  );
               $this->init();
   
               register_deactivation_hook( __FILE__, array( $this, 'deactivate' ) );
               register_uninstall_hook( __FILE__ , array( $this, 'uninstall' ) );
   
               if ( !is_writable( $this->upload_path.'/gravatar/' ) && is_dir( $this->upload_path.'/gravatar/' ) ) {
                   NFGC_Messages::add_message( 'error', 'Please set write permissions for "'. $this->upload_path .'/gravatar/"' );
               }else{
                   if ( @!mkdir( $this->upload_path.'/gravatar/', 0777 ) && ! is_dir( $this->upload_path.'/gravatar/' ) ) {
                       NFGC_Messages::add_message( 'error', 'Could not create directory "gravatar". Please set write permissions for "'. $this->upload_path .'/gravatar/"'  );
                   }
               }
   
               if ( isset ( $_POST['nf_clear_cache'] ) )
                   $this->clear_cache();
   
           }
   
           public function get_template_path() {
               return $this->plugin_dir_path .'template';
           }
   
           // Activate plugin and update default option
           public function activate() {
   
               $dir = $this->upload_path.'/gravatar/';
   
               // delete_option('nf_c_a_options');
               if ( get_option( 'nf_c_a_options' ) == false ) {
                   $default_options = array('active'   => 1,
                                            'ttl_day'  => 10,
                                            'ttl_hour' => 0,
                                            'ttl_min'  => 0
                                           );
                   update_option( 'nf_c_a_options', array( $default_options ) );
               }
   
           }
   
           // Deactivate plugin and clear cache
           public function deactivate() {
   
               $this->clear_cache();
   
           }
   
           // Notice in plugin options page
           public function admin_help_notice() {
               global $current_screen;
               if ( $current_screen->base == 'settings_page_'. basename( __FILE__,'.php' ) ) {
                   return true;
               }
           }
   
           // convert ttl option to second
           private function cache_to_second(){
               $cache_time = get_option( 'nf_c_a_options' );
               $cache_time = array_reverse( $cache_time[0] );
   
               $action = array();
               foreach ( $cache_time as $key => $value ) {
                   if ( $key == 'active' )
                       continue;
   
                   switch ( $key ) {
                       case 'ttl_min':
                           $cache_second = $value != 0 ? $value*60 : '';
                           break;
                       case 'ttl_hour':
                           $cache_second = $value != 0 ? ( $value*60*60 ) + $cache_second : $cache_second;
                           break;
                       case 'ttl_day':
                           $cache_second = $value != 0 ? ( $value*60*60*24 ) + $cache_second : $cache_second;
                           break;
                   }
   
               }
   
               if ( ! $cache_second ) {
                   $cache_second = 864000;// TTL of cache in seconds (10 days)
   
               }
   
               return $cache_second;
           }
   
           // The main functional
           public function get_cached_avatar( $source, $id_or_email, $size, $default, $alt ) {
   
               if ( !is_writable( $this->upload_path.'/gravatar/' ) || is_admin() ) {
                   return $source;
               }
               $time = $this->cache_to_second();
   
               preg_match('/d=([^&]*)/', $source, $d_tmp);
               $g_url_default_sorce = isset($d_tmp[1]) ? $d_tmp[1] : false;
   
               preg_match('/forcedefault=([^&]*)/', $source, $d_tmp);
               $g_forcedefault = isset($d_tmp[1]) ? $d_tmp[1] : false;
   
               preg_match('/avatar\/([a-z0-9]+)\?s=(\d+)/', $source, $tmp);
               $garvatar_id = $tmp[1];
   
               $file_name      = md5($garvatar_id.$g_url_default_sorce);
               $g_path         = $this->upload_path.'/gravatar/'.$file_name.'-s'.$size.'.jpg';
               $g_path_default = $this->upload_path.'/gravatar/default'.'-s'.$size.'.jpg';
               $g_url          = $this->upload_url.'/gravatar/'.$file_name.'-s'.$size.'.jpg';
               $g_url_default  = $this->upload_url.'/gravatar/'.'default'.'-s'.$size.'.jpg';
   
               // Check cache
               static $nf_avatars_cache = null;
               if ($nf_avatars_cache === null)    $nf_avatars_cache = get_option('nf_avatars_cache');
               if (! is_array($nf_avatars_cache)) $nf_avatars_cache = array();
   
               if (isset($nf_avatars_cache[$garvatar_id][$size])) {
                   $g_url  = $nf_avatars_cache[$garvatar_id][$size]['url'];
                   $g_path = $nf_avatars_cache[$garvatar_id][$size]['path'];
               }
   
               if (! is_file($g_path) || (time()-filemtime($g_path)) > $time) {
                   $curl_url = 'http://www.gravatar.com/avatar/'.$garvatar_id.'?s='.$size.'&r=G&d='.$g_url_default_sorce;
   
                   $ch = curl_init($curl_url);
                   curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
                   curl_setopt($ch, CURLOPT_VERBOSE, 1);
                   curl_setopt($ch, CURLOPT_HEADER, 1);
                   $response    = curl_exec($ch);
                   $header_size = curl_getinfo($ch, CURLINFO_HEADER_SIZE);
                   $header      = substr($response, 0, $header_size);
   
                   // Checking for redirect
                   $header_array = array();
                   preg_match('/^Location\: (.*)$/m', $header, $header_array);
                   $redirect_url = isset($header_array[1]) ? $header_array[1] : false;
   
                   if ($redirect_url) {
                       $g_url  = $g_url_default;
                       $g_path = $g_path_default;
                       if (! is_file($g_path) || (time()-filemtime($g_path)) > $time) {
                           copy($redirect_url, $g_path);
                       }
                   }
                   else {
                       // Check mime type
                       $mime_str   = curl_getinfo( $ch, CURLINFO_CONTENT_TYPE );
                       $mime_array = array();
                       preg_match( '#/([a-z]*)#i', $mime_str, $mime_array );
   
                       if (isset($mime_array[1])) {
                           // Write cache to file
                           $fp   = fopen( $g_path, "wb" );
                           $body = substr( $response, $header_size );
                           fwrite( $fp, $body );
                           fclose( $fp );
                       }
                   }
                   curl_close($ch);
   
                   $nf_avatars_cache[$garvatar_id][$size]['url']  = $g_url;
                   $nf_avatars_cache[$garvatar_id][$size]['path'] = $g_path;
                   update_option( 'nf_avatars_cache', $nf_avatars_cache );
               }
   
               return '<img alt="" src=\''.$g_url.'\' class="avatar avatar-'.$size.'" width="'.$size.'" height="'.$size.'" />';
           }
   
           // Create plugin option settings menu
           public function add_admin_menu() {
               // settings menu page
              add_options_page( 'Cached Avatar ', $this->plugin_name, 'manage_options', basename( __FILE__ ), array( $this,'view_options_page' ) );
           }
   
           // Create page option
           public function view_options_page() {
               // update options
   
               if ( isset( $_POST['nf_c_a_submit'] ) ) {
                   $update_val_options = $_POST['nf_c_a_options'];
   
                   foreach ( $update_val_options as $option => $value ) {
                       $update_val_options[$option] = abs( intval( $value ) );
                   }
   
                   if( $update_val_options['ttl_min'] == 0 && $update_val_options['ttl_hour'] == 0 && $update_val_options['ttl_day'] == 0 ) {
                       $update_val_options['ttl_day'] = 10;
                   }
   
                   update_option( 'nf_c_a_options', array( $update_val_options ) );
   
               }
   
               $options = get_option( 'nf_c_a_options' );
   
               include( $this->get_template_path() .'/main-options-page.php');
           }
   
           private function clear_cache() {
               $dir = $this->upload_path.'/gravatar/';
               $no_permision_to_delete = false;
   
               // Open directory
               if ( is_dir( $dir ) ) {
                   if ( $opendir = opendir( $dir ) ) {
                       $count = 0;
                       while ( ( $file = readdir( $opendir ) ) !== false ) {
                           if ( filetype( $dir . $file ) == 'file' ) {
                               if ( @unlink( $dir . $file ) ) {
                                   $count++;
                               }else {
                                   $no_permision_to_delete = true;
                               }
                           }
                       }
                       if ( $no_permision_to_delete ) {
                           NFGC_Messages::add_message( 'error','Unable to clear the cache' );
                       }else{
                           update_option('nf_avatars_cache', array() );
                           NFGC_Messages::add_message( 'info','The cache is cleared!' );
                           NFGC_Messages::add_message( 'info','Removed '.$count.' files' );
                       }
                       closedir( $opendir );
                   }
               }
          }
   
           // return count and size
           public function get_cache_info() {
               $dir  = $this->upload_path.'/gravatar/';
               $skip = array('.','..');
               $unit = array('b', 'kb', 'mb', 'gb', 'tb', 'pb');
   
               if ( is_dir( $dir ) ) {
                  $file_list = scandir( $dir );
   
                  // delete . and ..
                  foreach ( $skip as $value ) {
                      unset( $file_list[ array_search( $value, $file_list ) ] );
                  }
   
                  // sum files size
                  foreach ( $file_list as $file ) {
                      $size     = filesize( $dir . $file );
                      $all_size = $all_size + $size;
                  }
               }
   
               $readable_form = @round( $all_size / pow( 1024, ( $i = floor( log( $all_size, 1024) ) ) ), 2 ) . ' ' . $unit[$i];
   
               return array( 'amount' => count( $file_list ) , 'used_space' => $readable_form );
          }
   
           private function init() {
               return false;
               wp_enqueue_script( 'nfgc-main-script', plugins_url( '/js/main.js', __FILE__ ), array('jquery') );
               wp_enqueue_style( 'nfgc-main-style', plugins_url( '/css/style.css', __FILE__ ) );
          }
   
       }// Class
   
       global $nfgc;
       $nfgc = new NFGC_Gravatar_Cache();
       add_action('wp_enqueue_scripts', function() {
       	wp_enqueue_script( 'nfgc-main-script', plugins_url( '/js/main.js', __FILE__ ), array('jquery') );
       	wp_enqueue_style( 'nfgc-main-style', plugins_url( '/css/style.css', __FILE__ ) );
       });
       ```
   
 * And you are not novice since you could track errors and share more info on the
   issue 🙂
    Hope it works..
 *  Thread Starter [roggershaw](https://wordpress.org/support/users/roggershaw/)
 * (@roggershaw)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/php-notice-wp_enqueue_script-was-called-incorrectly-1/#post-6636586)
 * Thanks a lot Samuel, It solved the error. I can debug WordPress but PHP is very
   difficult to understand for me. Thanks a lot.
 * Regards,
    [Signature links removed by moderator per [forum rules](https://codex.wordpress.org/Forum_Welcome#Signatures).]

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## Tags

 * [register_uninstall_hook](https://wordpress.org/support/topic-tag/register_uninstall_hook/)
 * [wp_enqueue_script](https://wordpress.org/support/topic-tag/wp_enqueue_script/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 6 replies
 * 2 participants
 * Last reply from: [roggershaw](https://wordpress.org/support/users/roggershaw/)
 * Last activity: [10 years, 7 months ago](https://wordpress.org/support/topic/php-notice-wp_enqueue_script-was-called-incorrectly-1/#post-6636586)
 * Status: resolved

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