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msd2/tracking/piwik/plugins/Diagnostics/Diagnostic/RecommendedFunctionsCheck.php

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+<?php
+/**
+ * Piwik - free/libre analytics platform
+ *
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ */
+namespace Piwik\Plugins\Diagnostics\Diagnostic;
+
+use Piwik\Translation\Translator;
+
+/**
+ * Check the PHP functions that are not required but recommended.
+ */
+class RecommendedFunctionsCheck implements Diagnostic
+{
+    /**
+     * @var Translator
+     */
+    private $translator;
+
+    public function __construct(Translator $translator)
+    {
+        $this->translator = $translator;
+    }
+
+    public function execute()
+    {
+        $label = $this->translator->translate('Installation_SystemCheckOtherFunctions');
+
+        $result = new DiagnosticResult($label);
+
+        foreach ($this->getRecommendedFunctions() as $function) {
+            if (! PhpFunctionsCheck::functionExists($function)) {
+                $status = DiagnosticResult::STATUS_WARNING;
+                $comment = $function . '<br/>' . $this->getHelpMessage($function);
+            } else {
+                $status = DiagnosticResult::STATUS_OK;
+                $comment = $function;
+            }
+
+            $result->addItem(new DiagnosticResultItem($status, $comment));
+        }
+
+        return array($result);
+    }
+
+    /**
+     * @return string[]
+     */
+    private function getRecommendedFunctions()
+    {
+        return array(
+            'shell_exec',
+            'set_time_limit',
+            'mail',
+            'parse_ini_file',
+            'glob',
+            'gzopen',
+            'md5_file',
+        );
+    }
+
+    private function getHelpMessage($function)
+    {
+        $messages = array(
+            'shell_exec'     => 'Installation_SystemCheckFunctionHelp',
+            'set_time_limit' => 'Installation_SystemCheckTimeLimitHelp',
+            'mail'           => 'Installation_SystemCheckMailHelp',
+            'parse_ini_file' => 'Installation_SystemCheckParseIniFileHelp',
+            'glob'           => 'Installation_SystemCheckGlobHelp',
+            'gzopen'         => 'Installation_SystemCheckZlibHelp',
+        );
+
+        return $this->translator->translate($messages[$function]);
+    }
+}