[php] test Sys.command with raw cmd string

tests/sys/src/TestSys.hx

@@ -29,7 +29,7 @@ class TestSys extends TestCommandBase {
 	}
 	#end
 
-	#if (neko || python)
+	#if (neko || python || php)
 	function testRawCommand() {
 		var bin = sys.FileSystem.absolutePath(ExitCode.bin);
 		var native = sys.FileSystem.absolutePath(ExitCode.getNative());