Set proper required PHP version in AppRequirements (#185)

app/AppRequirements.php

@@ -22,18 +22,6 @@ class AppRequirements extends SymfonyRequirements
 
     public function __construct()
     {
-        $phpVersion = phpversion();
-        $icuVersion = Intl::getIcuVersion();
-
-        $this->addRequirement(
-            version_compare($phpVersion, self::REQUIRED_PHP_VERSION, '>='),
-            sprintf('PHP version must be at least %s (%s installed)', self::REQUIRED_PHP_VERSION, $phpVersion),
-            sprintf('You are running PHP version "<strong>%s</strong>", but CSBill needs at least PHP "<strong>%s</strong>" to run.
-                Before using CSBill, upgrade your PHP installation, preferably to the latest version.',
-                $phpVersion, self::REQUIRED_PHP_VERSION),
-            sprintf('Install PHP %s or newer (installed version is %s)', self::REQUIRED_PHP_VERSION, $phpVersion)
-        );
-
         parent::__construct();
 
         $this->addRequirement(
@@ -48,6 +36,8 @@ class_exists('Locale'),
             'Install and enable the <strong>intl</strong> extension.'
         );
 
+        $icuVersion = Intl::getIcuVersion();
+
         $this->addRequirement(
             null !== $icuVersion && version_compare($icuVersion, self::REQUIRED_ICU_VERSION, '>='),
             'icu library must be at least '.self::REQUIRED_ICU_VERSION,
@@ -120,4 +110,9 @@ public function getRecommendations()
 
         return $recommendations;
     }
+
+    public function getPhpRequiredVersion()
+    {
+        return self::REQUIRED_PHP_VERSION;
+    }
 }