RequestFactory: optimized script path detection performance

Author: JanTvrdik

src/Http/RequestFactory.php

@@ -113,16 +113,18 @@ public function createHttpRequest()
 			$script = '/';
 		}
 
-		$path = strtolower($url->getPath()) . '/';
-		$script = strtolower($script) . '/';
-		$max = min(strlen($path), strlen($script));
-		for ($i = 0; $i < $max; $i++) {
-			if ($path[$i] !== $script[$i]) {
+		$path = $url->getPath();
+		$max = min(strlen($path), strlen($script)) - 1;
+		for ($i = 0, $j = 0; $i <= $max; $i++) {
+			if ($path[$i] !== $script[$i] && strcasecmp($path[$i], $script[$i])) {
 				break;
 			} elseif ($path[$i] === '/') {
-				$url->setScriptPath(substr($url->getPath(), 0, $i + 1));
+				$j = $i;
+			} elseif ($i === $max) {
+				$j = $i + 1;
 			}
 		}
+		$url->setScriptPath(substr($path, 0, $j + 1));
 
 		// GET, POST, COOKIE
 		$useFilter = (!in_array(ini_get('filter.default'), array('', 'unsafe_raw')) || ini_get('filter.default_flags'));