Add option to force Strings to use UTF-8 encoding

core/um-fields.php

@@ -414,9 +414,11 @@ class UM_Fields {
 	function is_selected($key, $value, $data){
 		global $ultimatemember;
 
-		if ( isset( $ultimatemember->form->post_form[$key] ) && is_array( $ultimatemember->form->post_form[$key] ) ) {
+		$key = apply_filters('um_is_selected_filter_key', $key );
 
-			if ( in_array( $value, $ultimatemember->form->post_form[$key] ) ){
+		if ( isset( $ultimatemember->form->post_form[ $key ] ) && is_array( $ultimatemember->form->post_form[ $key ] ) ) {
+
+			if ( in_array( $value, $ultimatemember->form->post_form[ $key ] ) ){
 				return true;
 			}
 
@@ -424,11 +426,14 @@ class UM_Fields {
 
 			if ( !isset( $ultimatemember->form->post_form ) ) {
 
-				if ( um_user( $key ) && $this->editing == true && is_array( um_user( $key ) ) && in_array($value, um_user( $key ) ) ) {
+				$value = um_user( $key );
+				$value = apply_filters('um_is_selected_filter_value', $value );
+
+				if ( $value && $this->editing == true && is_array( $value ) && in_array( $value, $value ) ) {
 					return true;
 				}
 
-				if ( um_user( $key ) && $this->editing == true && !is_array( um_user( $key ) ) && um_user( $key ) == $value ) {
+				if ( $value && $this->editing == true && !is_array( $value ) && $value == $value ) {
 					return true;
 				}
 

core/um-filters-fields.php

@@ -301,4 +301,41 @@
 		}
 
 		 return $array;
+	}
+
+
+	/**
+	 * Force fields to use UTF-8 encoding
+	 * @param  mixed $value
+	 * @return mixed
+	 * @uses  hook filter: um_profile_field_filter_hook__
+	 */
+	add_filter('um_profile_field_filter_hook__','um_force_utf8_fields',1,10);
+	function um_force_utf8_fields( $value ){
+		
+		if( ! um_get_option('um_force_utf8_strings') ) 
+			return $value;
+
+		$value = um_force_utf8_string( $value );
+
+		return $value;
+
+	}
+
+	/**
+	 * Filter profile data value
+	 * @param  mixed $value
+	 * @return mixed
+	 * @uses   hook filter: um_is_selected_filter_value
+	 */
+	add_filter('um_is_selected_filter_value','um_is_selected_filter_value',1,9);
+	function um_is_selected_filter_value( $value ){
+		global $ultimatemember;
+
+		if( ! um_get_option('um_force_utf8_strings') ) 
+			return $value;
+
+		$value = um_force_utf8_string( $value );
+		
+		return $value;
 	}

core/um-short-functions.php

@@ -1495,3 +1495,35 @@ function um_fetch_user( $user_id ) {
 		return $count;
 	}
 
+	/**
+	 * Force strings to UTF-8 encoded
+	 * @param  mixed $value
+	 * @return mixed
+	 */
+	function um_force_utf8_string( $value ){
+
+		if( is_array( $value ) ){
+			$arr_value = array();
+			foreach ($value as $key => $value) {
+				$utf8_decoded_value = utf8_decode( $value );
+
+				if( mb_check_encoding( $utf8_decoded_value, 'UTF-8') ){ 
+				 	array_push( $arr_value, $utf8_decoded_value );
+				}else{
+					array_push( $arr_value, $value );
+				}
+
+			}
+			return $arr_value;
+		}else{
+
+			$utf8_decoded_value = utf8_decode($value);
+
+			if( mb_check_encoding( $utf8_decoded_value, 'UTF-8') ){ 
+			 	return $utf8_decoded_value;
+			}
+		}
+
+		return $value;
+
+	}

um-config.php

@@ -1898,6 +1898,16 @@ $this->sections[] = array(
 				'off'			=> __('Off','ultimatemember'),
         ),
 
+        array(
+                'id'      		=> 'um_force_utf8_strings',
+                'type'     		=> 'switch',
+                'title'    		=> __( 'Force Strings to UTF-8 Encoding','ultimatemember' ),
+                'default'  		=> 0,
+				'desc' 	   		=> __('Turn on If you want to force labels and fields to use UTF-8 encoding','ultimatemember'),
+				'on'			=> __('On','ultimatemember'),
+				'off'			=> __('Off','ultimatemember'),
+        ),
+
         array(
                 'id'       		=> 'enable_timebot',
                 'type'     		=> 'switch',