Use get_class($var) instead of $var::class for php 7.4 support

Signed-off-by: Alexander Schranz <[email protected]>

src/PlatesEngineFactory.php

@@ -10,6 +10,7 @@
 use Psr\Container\ContainerInterface;
 
 use function class_exists;
+use function get_class;
 use function gettype;
 use function is_array;
 use function is_numeric;
@@ -173,7 +174,7 @@ private function injectExtension(ContainerInterface $container, PlatesEngine $en
             throw new Exception\InvalidExtensionException(sprintf(
                 '%s expects extension instances, service names, or class names; received %s',
                 self::class,
-                is_object($extension) ? $extension::class : gettype($extension)
+                is_object($extension) ? get_class($extension) : gettype($extension)
             ));
         }
 
@@ -194,7 +195,7 @@ private function injectExtension(ContainerInterface $container, PlatesEngine $en
                 '%s expects extension services to implement %s ; received %s',
                 self::class,
                 ExtensionInterface::class,
-                is_object($extension) ? $extension::class : gettype($extension)
+                is_object($extension) ? get_class($extension) : gettype($extension)
             ));
         }
 

src/PlatesRenderer.php

@@ -12,6 +12,7 @@
 use Mezzio\Template\TemplateRendererInterface;
 use ReflectionProperty;
 
+use function get_class;
 use function gettype;
 use function is_object;
 use function is_string;
@@ -94,14 +95,14 @@ public function addDefaultParam(string $templateName, string $param, $value): vo
         if (! is_string($templateName) || empty($templateName)) {
             throw new Exception\InvalidArgumentException(sprintf(
                 '$templateName must be a non-empty string; received %s',
-                is_object($templateName) ? $templateName::class : gettype($templateName)
+                is_object($templateName) ? get_class($templateName) : gettype($templateName)
             ));
         }
 
         if (! is_string($param) || empty($param)) {
             throw new Exception\InvalidArgumentException(sprintf(
                 '$param must be a non-empty string; received %s',
-                is_object($param) ? $param::class : gettype($param)
+                is_object($param) ? get_class($param) : gettype($param)
             ));
         }