Fix PHP deprecation error for utf8_encode.

Author: ch-tm

composer.json

@@ -19,7 +19,9 @@
 	"require" : {
 		"php" : ">=7.0",
 		"ext-json" : "*",
-		"ext-curl" : "*"
+		"ext-curl" : "*",
+		"ext-curl" : "*",
+		"ext-mbstring": "*"
 	},
 	"require-dev" : {
 		"phpunit/phpunit" : ">=5.7"

src/com/zoho/crm/api/Initializer.php

@@ -343,7 +343,7 @@ private function getEncodedKey($user, $environment)
 
         $key = explode("@", $userMail)[0] . $environment->getUrl();
 
-        $input = unpack('C*', utf8_encode($key));
+        $input = unpack('C*', mb_convert_encoding($key, 'UTF-8'));
 
         return base64_encode(implode(array_map("chr", $input)));
     }

src/com/zoho/crm/api/util/Converter.php

@@ -274,7 +274,7 @@ public function getEncodedFileName()
 
 		$fileName = explode("@",$fileName)[0] . Initializer::getInitializer()->getEnvironment()->getUrl();
 
-		$input = unpack('C*', utf8_encode($fileName));
+		$input = unpack('C*', mb_convert_encoding($fileName, 'UTF-8'));
 
 		$str = base64_encode(implode(array_map("chr", $input)));
 

src/com/zoho/crm/api/util/FormDataConverter.php

@@ -109,11 +109,11 @@ public function appendToRequest(&$requestBase, $requestObject)
 
                     $date = new \DateTime();
 
-                    $data = utf8_encode($lineEnd);
+                    $data = mb_convert_encoding($lineEnd, 'UTF-8');
 
                     $current_time_long = $date->getTimestamp();
 
-                    $boundaryStart = utf8_encode($hypen.(string)$current_time_long.$lineEnd);
+                    $boundaryStart = mb_convert_encoding($hypen.(string)$current_time_long.$lineEnd, 'UTF-8');
 
                     for ($i = 0; $i < sizeof($keysDetail); $i++)
                     {
@@ -129,14 +129,14 @@ public function appendToRequest(&$requestBase, $requestObject)
 
                             $contentDisp = "Content-Disposition: form-data; name=\"".$key."\";filename=\"".$fileName."\"".$lineEnd.$lineEnd;
 
-                            $data = $data.utf8_encode($contentDisp);
+                            $data = $data.mb_convert_encoding($contentDisp, 'UTF-8');
 
-                            $data = $data.$fileData.utf8_encode($lineEnd);
+                            $data = $data.$fileData.mb_convert_encoding($lineEnd, 'UTF-8');
                         }                  
                     }
                     $boundaryend = $hypen . (string)$current_time_long . $hypen . $lineEnd . $lineEnd;
 
-                    $data = $data . utf8_encode($boundaryend);
+                    $data = $data . mb_convert_encoding($boundaryend, 'UTF-8');
 
                     $header = ['ENCTYPE: multipart/form-data','Content-Type:multipart/form-data;boundary=' . (string)$current_time_long];
 
@@ -160,19 +160,19 @@ public function appendToRequest(&$requestBase, $requestObject)
 
                     $header = ['ENCTYPE: multipart/form-data','Content-Type:multipart/form-data;boundary='.(string)$current_time_long];
 
-                    $data = utf8_encode($lineEnd);
+                    $data = mb_convert_encoding($lineEnd, 'UTF-8');
 
-                    $boundaryStart = utf8_encode($hypen.(string)$current_time_long.$lineEnd) ;
+                    $boundaryStart = mb_convert_encoding($hypen.(string)$current_time_long.$lineEnd, 'UTF-8') ;
 
                     $data = $data.$boundaryStart;
 
-                    $data = $data.utf8_encode($contentDisp);
+                    $data = $data.mb_convert_encoding($contentDisp, 'UTF-8');
 
-                    $data = $data.$fileData.utf8_encode($lineEnd);
+                    $data = $data.$fileData.mb_convert_encoding($lineEnd, 'UTF-8');
 
                     $boundaryend = $hypen.(string)$current_time_long.$hypen.$lineEnd.$lineEnd;
 
-                    $data = $data.utf8_encode($boundaryend);
+                    $data = $data.mb_convert_encoding($boundaryend, 'UTF-8');
 
                     $requestBase[CURLOPT_HTTPHEADER] = $header;
 

src/com/zoho/crm/api/util/ModuleFieldsHandler.php

@@ -29,7 +29,7 @@ private static function getFileName()
 
 		$fileName = explode("@", $fileName)[0] . Initializer::getInitializer()->getEnvironment()->getUrl();
 
-		$input = unpack('C*', utf8_encode($fileName));
+		$input = unpack('C*', mb_convert_encoding($fileName, 'UTF-8'));
 
 		return base64_encode(implode(array_map("chr", $input)));
 	}

src/com/zoho/crm/api/util/Utility.php

@@ -316,7 +316,7 @@ private static function getFileName()
 
         $fileName = explode("@", $fileName)[0] . Initializer::getInitializer()->getEnvironment()->getUrl();
 
-        $input = unpack('C*', utf8_encode($fileName));
+        $input = unpack('C*', mb_convert_encoding($fileName, 'UTF-8'));
 
         $str = base64_encode(implode(array_map("chr", $input)));