Import all functions

Updates all function files to import global functions used within them.

Updates the list in the `ServerRequestFactory` class file to reflect
what is actually used currently.

Author: weierophinney

src/ServerRequestFactory.php

@@ -14,26 +14,13 @@
 
 use function array_change_key_case;
 use function array_key_exists;
-use function array_keys;
 use function explode;
 use function implode;
 use function is_array;
 use function is_callable;
-use function ltrim;
-use function preg_match;
-use function preg_match_all;
-use function preg_replace;
-use function sprintf;
-use function strlen;
-use function strpos;
-use function strrpos;
 use function strtolower;
-use function strtr;
-use function substr;
-use function urldecode;
 
 use const CASE_LOWER;
-use const PREG_SET_ORDER;
 
 /**
  * Class for marshaling a request object from the current PHP environment.

src/functions/marshal_headers_from_sapi.php

@@ -7,6 +7,12 @@
 
 namespace Zend\Diactoros;
 
+use function array_key_exists;
+use function strpos;
+use function strtolower;
+use function strtr;
+use function substr;
+
 /**
  * @param array $server Values obtained from the SAPI (generally `$_SERVER`).
  * @return array Header/value pairs

src/functions/marshal_protocol_version_from_sapi.php

@@ -9,6 +9,8 @@
 
 use UnexpectedValueException;
 
+use function preg_match;
+
 /**
  * Return HTTP protocol version (X.Y) as discovered within a `$_SERVER` array.
  *

src/functions/marshal_uri_from_sapi.php

@@ -7,6 +7,19 @@
 
 namespace Zend\Diactoros;
 
+use function array_change_key_case;
+use function array_key_exists;
+use function explode;
+use function implode;
+use function is_array;
+use function ltrim;
+use function preg_match;
+use function preg_replace;
+use function strlen;
+use function strpos;
+use function strtolower;
+use function substr;
+
 /**
  * Marshal a Uri instance based on the values presnt in the $_SERVER array and headers.
  *
@@ -168,7 +181,6 @@ function marshalUriFromSapi(array $server, array $headers)
     $uri = $uri->withScheme($scheme);
 
     // Set the host
-    $accumulator = (object) ['host' => '', 'port' => null];
     list($host, $port) = $marshalHostAndPort($headers, $server);
     if (! empty($host)) {
         $uri = $uri->withHost($host);

src/functions/normalize_server.php

@@ -7,6 +7,8 @@
 
 namespace Zend\Diactoros;
 
+use function is_callable;
+
 /**
  * Marshal the $_SERVER array
  *

src/functions/normalize_uploaded_files.php

@@ -10,6 +10,8 @@
 use InvalidArgumentException;
 use Psr\Http\Message\UploadedFileInterface;
 
+use function is_array;
+
 /**
  * Normalize uploaded files
  *

src/functions/parse_cookie_header.php

@@ -7,6 +7,9 @@
 
 namespace Zend\Diactoros;
 
+use function preg_match_all;
+use function urldecode;
+
 /**
  * Parse a cookie header according to RFC 6265.
  *