fix php8 issues

5 files changed, 15 insertions, 10 deletions

diff --git a/Zotlabs/Lib/Apps.php b/Zotlabs/Lib/Apps.php
index 05b2ba177..d77a3fda2 100644
--- a/Zotlabs/Lib/Apps.php
+++ b/Zotlabs/Lib/Apps.php
@@ -307,7 +307,7 @@ class Apps {
 				}
 			}
 		}
-		if($ret) {
+		if(isset($ret)) {
 			if($translate)
 				self::translate_system_apps($ret);
 
diff --git a/Zotlabs/Web/HTTPSig.php b/Zotlabs/Web/HTTPSig.php
index 0b3e2bf2e..7c3903682 100644
--- a/Zotlabs/Web/HTTPSig.php
+++ b/Zotlabs/Web/HTTPSig.php
@@ -161,6 +161,8 @@ class HTTPSig {
 
 		logger('verified: ' . $x, LOGGER_DEBUG);
 
+		$fetched_key = '';
+
 		if(! $x) {
 
 			// try again, ignoring the local actor (xchan) cache and refetching the key
@@ -244,7 +246,7 @@ class HTTPSig {
 	}
 
 
-	function convertKey($key) {
+	static function convertKey($key) {
 
 		if(strstr($key,'RSA ')) {
 			return rsatopem($key);
@@ -267,7 +269,7 @@ class HTTPSig {
 	 *   false if no pub key found, otherwise return the pub key
 	 */
 
-	function get_activitystreams_key($id) {
+	static function get_activitystreams_key($id) {
 
 		// remove fragment
 
@@ -298,7 +300,7 @@ class HTTPSig {
 	}
 
 
-	function get_webfinger_key($id) {
+	static function get_webfinger_key($id) {
 
 		$x = q("select * from xchan left join hubloc on xchan_hash = hubloc_hash where hubloc_addr = '%s' or hubloc_id_url = '%s'",
 			dbesc(str_replace('acct:','',$id)),
@@ -333,7 +335,7 @@ class HTTPSig {
 		return (($key['public_key']) ? $key : false);
 	}
 
-	function get_zotfinger_key($id) {
+	static function get_zotfinger_key($id) {
 
 		$x = q("select * from xchan left join hubloc on xchan_hash = hubloc_hash where hubloc_addr = '%s' or hubloc_id_url = '%s' and hubloc_network = 'zot6'",
 			dbesc(str_replace('acct:','',$id)),
diff --git a/include/markdown.php b/include/markdown.php
index 0bfe595b8..013d57c29 100644
--- a/include/markdown.php
+++ b/include/markdown.php
@@ -213,6 +213,11 @@ function bb_to_markdown_share($match) {
 }
 
 
+function bb_to_markdown_transform_tags($match) {
+	return '#'. str_replace(' ', '_', $match[3]);
+}
+
+
 /**
  * @brief Convert bbcode to Markdown.
  *
@@ -226,8 +231,7 @@ function bb_to_markdown($Text, $options = []) {
 	 * Transform #tags, strip off the [url] and replace spaces with underscore
 	 */
 
-	$Text = preg_replace_callback('/#\[([zu])rl\=(.*?)\](.*?)\[\/[(zu)]rl\]/i',
-		create_function('$match', 'return \'#\'. str_replace(\' \', \'_\', $match[3]);'), $Text);
+	$Text = preg_replace_callback('/#\[([zu])rl\=(.*?)\](.*?)\[\/[(zu)]rl\]/i', 'bb_to_markdown_transform_tags', $Text);
 
 	$Text = preg_replace('/#\^\[([zu])rl\=(.*?)\](.*?)\[\/([zu])rl\]/i', '[$1rl=$2]$3[/$4rl]', $Text);
 
@@ -282,7 +286,6 @@ function bb_to_markdown($Text, $options = []) {
 	return $Text;
 }
 
-
 /**
  * @brief Convert a HTML text into Markdown.
  *
diff --git a/include/permissions.php b/include/permissions.php
index ca8ff6e93..c7eee11f4 100644
--- a/include/permissions.php
+++ b/include/permissions.php
@@ -279,7 +279,7 @@ function perm_is_allowed($uid, $observer_xchan, $permission, $check_siteblock =
 
 	// First find out what the channel owner declared permissions to be.
 
-	$channel_perm = \Zotlabs\Access\PermissionLimits::Get($uid,$permission);
+	$channel_perm = intval(\Zotlabs\Access\PermissionLimits::Get($uid,$permission));
 
 	$r = q("select channel_pageflags, channel_moved, channel_hash from channel where channel_id = %d limit 1",
 		intval($uid)
diff --git a/include/plugin.php b/include/plugin.php
index c789ad522..269903373 100644
--- a/include/plugin.php
+++ b/include/plugin.php
@@ -912,7 +912,7 @@ function script_path() {
 
 	// Some proxy setups may require using http_host
 
-	if(intval(App::$config['system']['script_path_use_http_host']))
+	if(isset(App::$config['system']['script_path_use_http_host']) && intval(App::$config['system']['script_path_use_http_host']))
 		$server_var = 'HTTP_HOST';
 	else
 		$server_var = 'SERVER_NAME';