Up PHP min version to 5.6

Author: natanfelles

composer.json

@@ -23,7 +23,7 @@
         "source": "https://github.com/natanfelles/php-server"
     },
     "require": {
-        "php": ">=5.4.0"
+        "php": ">=5.6.0"
     },
     "bin": [
         "bin/php-server"

src/functions.php

@@ -6,7 +6,6 @@
  *
  * @return string
  */
-
 $function_size_conversion = function ($size) {
 	$units = [
 		'B',

src/server_config.php

@@ -2,7 +2,7 @@
 
 if (file_exists($custom_config_file = getcwd() . '/php-server.ini'))
 {
-	$custom_config = parse_ini_file($custom_config_file, true);
+	$custom_config = parse_ini_file($custom_config_file, true, INI_SCANNER_TYPED);
 }
 
 $default_config = [
@@ -19,7 +19,7 @@
 	   'max_execution_time'     => 360,
    ],
    'server'          => [
-	   'PHPSERVER_VERSION' => '2.6',
+	   'PHPSERVER_VERSION' => '2.7',
    ],
 ];