From c2e12d5aad22168b1db0dc144daa275e819edfe0 Mon Sep 17 00:00:00 2001
From: Fabrice Creuzot <code@luigifab.fr>
Date: Thu, 14 Oct 2021 20:11:41 +0200
Subject: [PATCH] Fix deprecated functionality: preg_match(): passing null to
 parameter #2 ($subject) of type string is deprecated

---
 .../default/template/widget/tabshoriz.phtml   | 31 +++++++++----------
 1 file changed, 14 insertions(+), 17 deletions(-)

diff --git a/app/design/adminhtml/default/default/template/widget/tabshoriz.phtml b/app/design/adminhtml/default/default/template/widget/tabshoriz.phtml
index 4eba8fd8d03..9762a5cc498 100644
--- a/app/design/adminhtml/default/default/template/widget/tabshoriz.phtml
+++ b/app/design/adminhtml/default/default/template/widget/tabshoriz.phtml
@@ -24,22 +24,19 @@
  * @license     http://opensource.org/licenses/afl-3.0.php  Academic Free License (AFL 3.0)
  */
 ?>
-<!-- <?php if($this->getTitle()): ?>
-    <h3><?php echo $this->getTitle() ?></h3>
-<?php endif ?> -->
-<?php if(!empty($tabs)): ?>
-<ul id="<?php echo $this->getId() ?>" class="tabs-horiz">
-<?php foreach ($tabs as $_tab): ?>
-    <li>
-        <a href="<?php echo $this->getTabUrl($_tab)?>" id="<?php echo $this->getTabId($_tab) ?>" title="<?php echo $this->getTabTitle($_tab) ?>" class="tab-item-link <?php echo $this->getTabClass($_tab) ?><?php if (preg_match('/\s?ajax\s?/', $this->getTabClass($_tab))) {?> notloaded<?php }?>">
-            <span><span class="changed" title="<?php echo Mage::helper('core')->quoteEscape($this->__('The information in this tab has been changed.')) ?>"></span><span class="error" title="<?php echo Mage::helper('core')->quoteEscape($this->__('This tab contains invalid data. Please solve the problem before saving.')) ?>"></span><?php echo $this->getTabLabel($_tab) ?></span>
-        </a>
-        <div id="<?php echo $this->getTabId($_tab) ?>_content" style="display:none"><?php echo $this->getTabContent($_tab) ?></div>
-    </li>
-<?php endforeach ?>
-</ul>
-<script type="text/javascript">
 
-    <?php echo $this->getId() ?>JsTabs = new varienTabs('<?php echo $this->getId() ?>', '<?php echo $this->getDestElementId() ?>', '<?php echo $this->getActiveTabId() ?>', <?php echo $this->getAllShadowTabs()?>);
-</script>
+<?php if (!empty($tabs)): ?>
+    <ul id="<?php echo $this->getId() ?>" class="tabs-horiz">
+        <?php foreach ($tabs as $tab): ?>
+            <li>
+                <a href="<?php echo $this->getTabUrl($tab) ?>" id="<?php echo $this->getTabId($tab) ?>" title="<?php echo $this->getTabTitle($tab) ?>" class="tab-item-link <?php echo $class = $this->getTabClass($tab),((!empty($class) && preg_match('/\s?ajax\s?/', $class)) ? ' notloaded' : '') ?>">
+                    <span><span class="changed" title="<?php echo Mage::helper('core')->quoteEscape($this->__('The information in this tab has been changed.')) ?>"></span><span class="error" title="<?php echo Mage::helper('core')->quoteEscape($this->__('This tab contains invalid data. Please solve the problem before saving.')) ?>"></span><?php echo $this->getTabLabel($tab) ?></span>
+                </a>
+                <div id="<?php echo $this->getTabId($tab) ?>_content" style="display:none"><?php echo $this->getTabContent($tab) ?></div>
+            </li>
+        <?php endforeach ?>
+    </ul>
+    <script type="text/javascript">
+    <?php echo $this->getId() ?>JsTabs = new varienTabs('<?php echo $this->getId() ?>', '<?php echo $this->getDestElementId() ?>', '<?php echo $this->getActiveTabId() ?>', <?php echo $this->getAllShadowTabs() ?>);
+    </script>
 <?php endif ?>