Require at least PHP 5.6.12

app/Models/Pages/Install.php

@@ -10,7 +10,7 @@ use RuntimeException;
 
 class Install extends Page
 {
-    const PHP_MIN = '5.6.0';
+    const PHP_MIN = '5.6.12';
 
     /**
      * Для MySQL

composer.json

@@ -17,7 +17,7 @@
         }
     },
     "require": {
-        "php": ">=5.6.0",
+        "php": ">=5.6.12",
         "ext-gd": "*",
         "ext-mbstring": "*",
         "artoodetoo/dirk": "dev-master",

readme.md

@@ -11,7 +11,7 @@ No: user profiles, moderator functions, private messages, voting, subscriptions,
 
 ## Requirements
 
-* PHP 5.6.x or 7.x.x
+* PHP 5.6.12+ or 7.x.x
 * A database such as MySQL 5.5.3 or later (_Drivers for other databases are not realized now_)
 
 ## Links