@@ -266,11 +266,11 @@ function es_optimizer_render_additional_options($options) {
266266 * - WordPress checked() function is used for checkbox state
267267 *
268268 * @param array $options Plugin options
269- * @param string $option_name Option name
269+ * @param string $optionName Option name
270270 * @param string $title Option title
271271 * @param string $description Option description
272272 */
273- function es_optimizer_render_checkbox_option ($ options , $ option_name , $ title , $ description ) {
273+ function es_optimizer_render_checkbox_option ($ options , $ optionName , $ title , $ description ) {
274274 ?>
275275 <tr valign="top">
276276 <th scope="row"><?php
@@ -283,12 +283,12 @@ function es_optimizer_render_checkbox_option($options, $option_name, $title, $de
283283 // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
284284 /*
285285 * Using printf with esc_attr for attribute name which cannot be avoided.
286- * The $option_name values are hardcoded strings from render functions, not user input.
286+ * The $optionName values are hardcoded strings from render functions, not user input.
287287 * This is a controlled environment where these values are defined within the plugin.
288288 */
289- printf ('es_optimizer_options[%s] ' , esc_attr ($ option_name ));
289+ printf ('es_optimizer_options[%s] ' , esc_attr ($ optionName ));
290290 ?> " value="1"
291- <?php checked (1 , isset ($ options [$ option_name ]) ? $ options [$ option_name ] : 0 ); ?> />
291+ <?php checked (1 , isset ($ options [$ optionName ]) ? $ options [$ optionName ] : 0 ); ?> />
292292 <?php
293293 // Using esc_html for secure output of descriptions
294294 echo esc_html ( $ description );
@@ -308,11 +308,11 @@ function es_optimizer_render_checkbox_option($options, $option_name, $title, $de
308308 * - Textarea content is escaped with esc_textarea()
309309 *
310310 * @param array $options Plugin options
311- * @param string $option_name Option name
311+ * @param string $optionName Option name
312312 * @param string $title Option title
313313 * @param string $description Option description
314314 */
315- function es_optimizer_render_textarea_option ($ options , $ option_name , $ title , $ description ) {
315+ function es_optimizer_render_textarea_option ($ options , $ optionName , $ title , $ description ) {
316316 ?>
317317 <tr valign="top">
318318 <th scope="row"><?php
@@ -328,19 +328,19 @@ function es_optimizer_render_textarea_option($options, $option_name, $title, $de
328328 // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
329329 /*
330330 * Using printf with esc_attr for attribute name which cannot be avoided.
331- * The $option_name values are hardcoded strings from render functions, not user input.
331+ * The $optionName values are hardcoded strings from render functions, not user input.
332332 * This is a controlled environment where these values are defined within the plugin.
333333 */
334- printf ('es_optimizer_options[%s] ' , esc_attr ($ option_name ));
334+ printf ('es_optimizer_options[%s] ' , esc_attr ($ optionName ));
335335 ?> " rows="5" cols="50" class="large-text code"><?php
336- if (isset ($ options [$ option_name ])) {
336+ if (isset ($ options [$ optionName ])) {
337337 // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
338338 /*
339339 * Using printf with esc_textarea is the most appropriate approach.
340340 * esc_textarea already properly escapes content for use inside textarea elements.
341341 * This function is designed specifically for this purpose and ensures data is properly escaped.
342342 */
343- printf ('%s ' , esc_textarea ($ options [$ option_name ]));
343+ printf ('%s ' , esc_textarea ($ options [$ optionName ]));
344344 }
345345 ?> </textarea>
346346 </td>
@@ -379,7 +379,7 @@ function es_optimizer_validate_options($input) {
379379 // Validate and sanitize the DNS prefetch domains
380380 if (isset ($ input ['dns_prefetch_domains ' ])) {
381381 $ domains = explode ("\n" , trim ($ input ['dns_prefetch_domains ' ]));
382- $ sanitized_domains = array ();
382+ $ sanitizedDomains = array ();
383383
384384 foreach ($ domains as $ domain ) {
385385 $ domain = trim ($ domain );
@@ -388,12 +388,12 @@ function es_optimizer_validate_options($input) {
388388 if (filter_var ($ domain , FILTER_VALIDATE_URL )) {
389389 // Security: Use esc_url_raw to sanitize URLs before storing in database
390390 // This prevents potential security issues with malformed URLs
391- $ sanitized_domains [] = esc_url_raw ($ domain );
391+ $ sanitizedDomains [] = esc_url_raw ($ domain );
392392 }
393393 }
394394 }
395395
396- $ valid ['dns_prefetch_domains ' ] = implode ("\n" , $ sanitized_domains );
396+ $ valid ['dns_prefetch_domains ' ] = implode ("\n" , $ sanitizedDomains );
397397 }
398398
399399 return $ valid ;
@@ -448,8 +448,8 @@ function es_optimizer_add_settings_link($links) {
448448 // The admin_url function is used to properly generate a URL within the WordPress admin area
449449 // Setting text is wrapped in translation function but doesn't need escaping here
450450 // as WordPress core handles this when rendering plugin links
451- $ settings_link = '<a href=" ' . admin_url ('options-general.php?page=es-optimizer-settings ' ) . '"> ' . __ ('Settings ' , 'Simple-WP-Optimizer ' ) . '</a> ' ;
452- array_unshift ($ links , $ settings_link );
451+ $ settingsLink = '<a href=" ' . admin_url ('options-general.php?page=es-optimizer-settings ' ) . '"> ' . __ ('Settings ' , 'Simple-WP-Optimizer ' ) . '</a> ' ;
452+ array_unshift ($ links , $ settingsLink );
453453 return $ links ;
454454}
455455$ plugin = plugin_basename (__FILE__ );
@@ -472,13 +472,13 @@ function disable_emojis_tinymce($plugins) {
472472 * Remove emoji CDN hostname from DNS prefetching hints.
473473 *
474474 * @param array $urls URLs to print for resource hints.
475- * @param string $relation_type The relation type the URLs are printed for.
475+ * @param string $relationType The relation type the URLs are printed for.
476476 * @return array Difference betwen the two arrays.
477477 */
478- function disable_emojis_remove_dns_prefetch ($ urls , $ relation_type ) {
479- if ('dns-prefetch ' === $ relation_type ) {
480- $ emoji_svg_url = apply_filters ('emoji_svg_url ' , 'https://s.w.org/images/core/emoji/2/svg/ ' );
481- $ urls = array_diff ($ urls , array ($ emoji_svg_url ));
478+ function disable_emojis_remove_dns_prefetch ($ urls , $ relationType ) {
479+ if ('dns-prefetch ' === $ relationType ) {
480+ $ emojiSvgUrl = apply_filters ('emoji_svg_url ' , 'https://s.w.org/images/core/emoji/2/svg/ ' );
481+ $ urls = array_diff ($ urls , array ($ emojiSvgUrl ));
482482 }
483483 return $ urls ;
484484}
@@ -600,7 +600,7 @@ function add_dns_prefetch() {
600600
601601 // Output the prefetch links using WordPress core functions
602602 foreach ($ domains as $ domain ) {
603- $ escaped_domain = esc_url ($ domain );
603+ $ escapedDomain = esc_url ($ domain );
604604
605605 /*
606606 * Using wp_print_resource_hints with array of sanitized domains would be the ideal approach,
@@ -610,10 +610,11 @@ function add_dns_prefetch() {
610610 */
611611 if (function_exists ('esc_html ' )) {
612612 echo esc_html ("\n" );
613- } else {
614- echo "\n" ;
613+ wp_print_link_tag ( ' dns-prefetch ' , $ escapedDomain );
614+ return ;
615615 }
616- wp_print_link_tag ('dns-prefetch ' , $ escaped_domain );
616+ echo "\n" ;
617+ wp_print_link_tag ('dns-prefetch ' , $ escapedDomain );
617618 }
618619}
619620// Hook after wp_head and before other elements are added
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