From 4fdefd61ae479b3ce4dd7e4c7c6eebbc4ae2c20a Mon Sep 17 00:00:00 2001
From: nathan <nathangray.bsc+github@gmail.com>
Date: Wed, 13 Oct 2021 09:55:51 -0600
Subject: [PATCH] PHP 8.0: Avoid fatal error "array_key_exists(): Argument #2
 ($array) must be of type array, null given"

---
 ...portexport_wizard_basic_export_csv.inc.php | 27 ++++++++++++-------
 1 file changed, 18 insertions(+), 9 deletions(-)

diff --git a/importexport/inc/class.importexport_wizard_basic_export_csv.inc.php b/importexport/inc/class.importexport_wizard_basic_export_csv.inc.php
index 68b6e5c8b8..a8b313941b 100644
--- a/importexport/inc/class.importexport_wizard_basic_export_csv.inc.php
+++ b/importexport/inc/class.importexport_wizard_basic_export_csv.inc.php
@@ -183,28 +183,37 @@ class importexport_wizard_basic_export_csv
 			$content['step'] = 'wizard_step40';
 
 			// If editing an existing definition, these will be in plugin_options
-			if(!$content['delimiter'] && $content['plugin_options']['delimiter']) {
+			if(!$content['delimiter'] && $content['plugin_options']['delimiter'])
+			{
 				$content['delimiter'] = $content['plugin_options']['delimiter'];
-			} elseif (!$content['delimiter']) {
+			}
+			elseif(!$content['delimiter'])
+			{
 				$content['delimiter'] = ';';
 			}
-			if(!$content['charset'] && $content['plugin_options']['charset']) {
+			if(!$content['charset'] && $content['plugin_options']['charset'])
+			{
 				$content['charset'] = $content['plugin_options']['charset'] ? $content['plugin_options']['charset'] : 'user';
 			}
-			if(!array_key_exists('begin_with_fieldnames', $content) && array_key_exists('begin_with_fieldnames', $content['plugin_options'])) {
+			if(!array_key_exists('begin_with_fieldnames', $content) &&
+				is_array($content['plugin_options']) &&
+				array_key_exists('begin_with_fieldnames', $content['plugin_options']))
+			{
 				$content['begin_with_fieldnames'] = $content['plugin_options']['begin_with_fieldnames'];
 			}
-			if(!array_key_exists('convert', $content) && array_key_exists('convert', $content['plugin_options'])) {
+			if(!array_key_exists('convert', $content) &&
+				is_array($content['plugin_options']) && array_key_exists('convert', $content['plugin_options']))
+			{
 				$content['convert'] = $content['plugin_options']['convert'];
 			}
 
 
 			$sel_options['begin_with_fieldnames'] = array(
-				0	=> lang('No'),
-				1	=> lang('Field names'),
-				'label'	=> lang('Field labels')
+				0       => lang('No'),
+				1       => lang('Field names'),
+				'label' => lang('Field labels')
 			);
-			$sel_options['charset'] = Api\Translation::get_installed_charsets()+
+			$sel_options['charset'] = Api\Translation::get_installed_charsets() +
 			array(
                                 'user'  => lang('User preference'),
                         );