Using case-insensitive string comparisons using mb_strtolower

This replaces `strtolower`, which does not support unicode. DK seems to allow any letter and symbol in various codes and references (including variations). This fixes an issue where variations did not end up in invoice exports, as a comparison conditional was failing.
1984hosting · Aug 19, 2024 · b9383a0 · b9383a0
1 parent 935ff9c
commit b9383a0
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Showing 3 changed files with 36 additions and 25 deletions.
diff --git a/src/Currency.php b/src/Currency.php
@@ -38,7 +38,7 @@ public static function set_rate(
 			return self::invalid_currency_code_error( $currency );
 		}
 
-		$option_name = '1984_woo_dk_currency_rate_' . strtolower( $currency );
+		$option_name = '1984_woo_dk_currency_rate_' . mb_strtolower( $currency );
 
 		$float_value = (float) $rate;
 
@@ -62,7 +62,7 @@ public static function get_rate(
 			return self::invalid_currency_code_error( $currency );
 		}
 
-		$option_name = '1984_woo_dk_currency_rate_' . strtolower( $currency );
+		$option_name = '1984_woo_dk_currency_rate_' . mb_strtolower( $currency );
 
 		$rate = get_option( $option_name, 0 );
 
@@ -105,7 +105,7 @@ public static function convert(
 		}
 
 		$from_rate = get_option(
-			'1984_woo_dk_currency_rate_' . strtolower( $from ),
+			'1984_woo_dk_currency_rate_' . mb_strtolower( $from ),
 		);
 
 		if ( ! $from_rate ) {
@@ -124,7 +124,7 @@ public static function convert(
 		}
 
 		$to_rate = get_option(
-			'1984_woo_dk_currency_rate_' . strtolower( $to )
+			'1984_woo_dk_currency_rate_' . mb_strtolower( $to )
 		);
 
 		if ( ! $to_rate ) {

diff --git a/src/Import/ProductVariations.php b/src/Import/ProductVariations.php
@@ -87,14 +87,16 @@ public static function attributes_to_woocommerce_variation_attributes(
 			return array();
 		}
 
+		$lower_case_code = mb_strtolower( $code );
+
 		$variations = self::get_variations();
 
-		$attributes = $variations[ $code ]->attributes;
+		$attributes = $variations[ $lower_case_code ]->attributes;
 
 		$woocommerce_variation_attributes = array();
 
 		foreach ( $attributes as $code => $attribute ) {
-			$woocommerce_variation_attributes[ strtolower( $code ) ] = array_keys(
+			$woocommerce_variation_attributes[ $lower_case_code ] = array_keys(
 				$attribute->values
 			);
 		}
@@ -313,7 +315,7 @@ public static function get_attribute_from_dk(
 			$code        = $object->CODE;
 			return (object) array(
 				'id'          => $record_id,
-				'code'        => strtolower( $code ),
+				'code'        => mb_strtolower( $code ),
 				'description' => $description,
 				'values'      => self::get_variation_attributes( $record_id ),
 			);
@@ -381,8 +383,8 @@ public static function get_variation_attributes_from_dk(
 			$attributes = array();
 
 			foreach ( $result->data as $a ) {
-				$code     = strtolower( $a->HEADCODE );
-				$code_key = strtolower( $code );
+				$code     = mb_strtolower( $a->HEADCODE );
+				$code_key = mb_strtolower( $code );
 
 				$attributes[ $code ] = (object) array(
 					'code' => $code,
@@ -406,7 +408,7 @@ public static function get_variation_attributes_from_dk(
 	public static function get_attribute_name( string $code ): string {
 		$attribute_values = self::get_attribute_values();
 
-		$key = strtolower( $code );
+		$key = mb_strtolower( $code );
 
 		if ( ! key_exists( $key, $attribute_values ) ) {
 			return $code;
@@ -469,8 +471,8 @@ public static function get_attribute_values_from_dk(): array {
 					$name = $code;
 				}
 
-				$values[ strtolower( $code ) ] = (object) array(
-					'code' => strtolower( $code ),
+				$values[ mb_strtolower( $code ) ] = (object) array(
+					'code' => mb_strtolower( $code ),
 					'name' => $name,
 				);
 			}
@@ -491,26 +493,26 @@ public static function parse_variations_json( array $variation_json ): array {
 
 		foreach ( $variation_json as $vj ) {
 			$variation   = array();
-			$code        = strtolower( $vj->CODE );
+			$code        = mb_strtolower( $vj->CODE );
 			$description = $vj->DESCRIPTION;
 
 			$variation['skus'] = self::get_product_skus_by_variation_from_dk(
 				$code
 			);
 
 			$variations[ $code ] = array(
-				'code'        => strtolower( $code ),
+				'code'        => mb_strtolower( $code ),
 				'description' => $description,
 			);
 
 			if ( property_exists( $vj, 'SUBGROUP1' ) ) {
-				$variation['attributes'][ strtolower( $vj->SUBGROUP1 ) ] =
-				self::get_attribute( strtolower( $vj->SUBGROUP1 ) );
+				$variation['attributes'][ mb_strtolower( $vj->SUBGROUP1 ) ] =
+				self::get_attribute( mb_strtolower( $vj->SUBGROUP1 ) );
 			}
 
 			if ( property_exists( $vj, 'SUBGROUP2' ) ) {
-				$variation['attributes'][ strtolower( $vj->SUBGROUP2 ) ] =
-				self::get_attribute( strtolower( $vj->SUBGROUP2 ) );
+				$variation['attributes'][ mb_strtolower( $vj->SUBGROUP2 ) ] =
+				self::get_attribute( mb_strtolower( $vj->SUBGROUP2 ) );
 			}
 
 			$variations[ $code ] = (object) $variation;

diff --git a/src/Import/Products.php b/src/Import/Products.php
@@ -215,15 +215,24 @@ public static function json_to_new_product(
 			return false;
 		}
 
-		if ( strtolower( Config::get_shipping_sku() ) === strtolower( $json_object->ItemCode ) ) {
+		if (
+			mb_strtolower( Config::get_shipping_sku() ) ===
+			mb_strtolower( $json_object->ItemCode )
+		) {
 			return false;
 		}
 
-		if ( strtolower( Config::get_cost_sku() ) === strtolower( $json_object->ItemCode ) ) {
+		if (
+			mb_strtolower( Config::get_cost_sku() ) ===
+			mb_strtolower( $json_object->ItemCode )
+		) {
 			return false;
 		}
 
-		if ( ! $json_object->ShowItemInWebShop && ! Config::get_import_nonweb_products() ) {
+		if (
+			! $json_object->ShowItemInWebShop &&
+			! Config::get_import_nonweb_products()
+		) {
 			return false;
 		}
 
@@ -730,13 +739,13 @@ public static function merge_variations(
 				}
 				$variation = array(
 					'quantity'    => (float) $v->Quantity,
-					'attribute_1' => strtolower( $attribute_names[0] ),
-					'code_1'      => strtolower( $v->Code ),
+					'attribute_1' => mb_strtolower( $attribute_names[0] ),
+					'code_1'      => mb_strtolower( $v->Code ),
 				);
 
 				if ( property_exists( $v, 'Code2' ) ) {
-					$variation['attribute_2'] = strtolower( $attribute_names[1] );
-					$variation['code_2']      = strtolower( $v->Code2 );
+					$variation['attribute_2'] = mb_strtolower( $attribute_names[1] );
+					$variation['code_2']      = mb_strtolower( $v->Code2 );
 				}
 
 				$variations_array[] = (object) $variation;