N°9717 - Bring unattended error feedbacks back (#943)

* Enhance unattended CLI to log fatal error just like setup wizardinstead of silent failure

* 💚 change unattended output in case of painless FATAL

* 💚 capture FATALs only

* Update setup/unattended-install/unattended-install.php

Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>

---------

Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>

setup/unattended-install/unattended-install.php

@@ -3,6 +3,21 @@
 require_once(dirname(__FILE__, 3).'/approot.inc.php');
 require_once(__DIR__.'/InstallationFileService.php');
 
+function fatalHandler()
+{
+	$error = error_get_last();
+	if ($error) {
+		if ($error['type'] & (E_ERROR | E_PARSE | E_CORE_ERROR | E_COMPILE_ERROR | E_USER_ERROR)) {
+			// fatal error has occured
+			echo "PHP Fatal captured: {$error["message"]}";
+			SetupLog::Error("Fatal error during setup", null, $error);
+			exit(-1);
+		}
+	}
+}
+
+register_shutdown_function("fatalHandler");
+
 function PrintUsageAndExit()
 {
 	echo <<<EOF