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typo3/sysext/frontend/Classes/ContentObject/LoadRegisterContentObject.php

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+<?php
+namespace TYPO3\CMS\Frontend\ContentObject;
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+/**
+ * Contains LOAD_REGISTER class object.
+ */
+class LoadRegisterContentObject extends AbstractContentObject
+{
+    /**
+     * Rendering the cObject, LOAD_REGISTER
+     * NOTICE: This cObject does NOT return any content since it just sets internal data based on the TypoScript properties.
+     *
+     * @param array $conf Array of TypoScript properties
+     * @return string Empty string (the cObject only sets internal data!)
+     */
+    public function render($conf = [])
+    {
+        $GLOBALS['TSFE']->registerStack[] = $GLOBALS['TSFE']->register;
+        if (is_array($conf)) {
+            $isExecuted = [];
+            foreach ($conf as $theKey => $theValue) {
+                $register = rtrim($theKey, '.');
+                if (!isset($isExecuted[$register]) || !$isExecuted[$register]) {
+                    $registerProperties = $register . '.';
+                    if (isset($conf[$register]) && isset($conf[$registerProperties])) {
+                        $theValue = $this->cObj->stdWrap($conf[$register], $conf[$registerProperties]);
+                    } elseif (isset($conf[$registerProperties])) {
+                        $theValue = $this->cObj->stdWrap('', $conf[$registerProperties]);
+                    }
+                    $GLOBALS['TSFE']->register[$register] = $theValue;
+                    $isExecuted[$register] = true;
+                }
+            }
+        }
+        return '';
+    }
+}