[!!!][TASK] Early check for PHP 5.5 in Install Tool

PHP 5.5 or above is a requirement for TYPO3 CMS. As code is using
specific PHP 5.5 features, an early check is required in Install Tool.

Releases: master
Resolves: #62914
Change-Id: Ia33b5e16d5cc96edc7cad5a4348fce5fb1b1236a
Reviewed-on: http://review.typo3.org/34056


Reviewed-by: Benjamin Mack <benni@typo3.org>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Markus Klein <klein.t3@reelworx.at>
Tested-by: Markus Klein <klein.t3@reelworx.at>
Reviewed-by: Xavier Perseguers <xavier@typo3.org>
Tested-by: Xavier Perseguers <xavier@typo3.org>

typo3/sysext/core/Documentation/Changelog/master/Breaking-62914-EarlyCheckPHP55InInstallTool.rst

+==========================================================
+Breaking: #62914 - Early check for PHP 5.5 in Install Tool
+==========================================================
+
+Description
+===========
+
+PHP 5.5 or above is a requirement for TYPO3 CMS v7.0. As code is using specific PHP 5.5 features, an
+early check is required in Install Tool.
+
+
+Impact
+======
+
+Install Tool will throw an exception if PHP 5.5 or above is not detected.
+
+
+Affected installations
+======================
+
+Any installation without at least PHP 5.5.
+
+
+Migration
+=========
+
+Upgrade to PHP 5.5 or above.

typo3/sysext/install/Start/Install.php

@@ -93,6 +93,10 @@
  *   can exist yet.
  */
 
+if (version_compare(PHP_VERSION, '5.5.0', '<')) {
+	throw new \Exception('TYPO3 CMS requires PHP 5.5 or above', 1415878732);
+}
+
 define('TYPO3_MODE', 'BE');
 define('TYPO3_enterInstallScript', '1');