Allow logging null

php/utils/logging.php

@@ -113,7 +113,7 @@
 		);
 	}
 
-	function _log_message(string $msg, int $message_verbosity) {
+	function _log_message(?string $msg, int $message_verbosity) {
 		global $LOGGING_VERBOSITY;
 		if ($message_verbosity > $LOGGING_VERBOSITY) return;
 		$runtime = runtime_str();
@@ -129,7 +129,7 @@
 	 * Only logs when `$LOGGING_VERBOSITY` is Error and below.
 	 * @param string $msg String message to log.
 	 */
-	function log_error(string $msg) {
+	function log_error(?string $msg) {
 		_log_message($msg, LoggingVerbosity::Error);
 	}
 
@@ -138,7 +138,7 @@
 	 * Only logs when `$LOGGING_VERBOSITY` is Warning and below.
 	 * @param string $msg String message to log.
 	 */
-	function log_warning(string $msg) {
+	function log_warning(?string $msg) {
 		_log_message($msg, LoggingVerbosity::Warning);
 	}
 
@@ -147,7 +147,7 @@
 	 * Only logs when `$LOGGING_VERBOSITY` is Info and below.
 	 * @param string $msg String message to log.
 	 */
-	function log_info(string $msg) {
+	function log_info(?string $msg) {
 		_log_message($msg, LoggingVerbosity::Info);
 	}
 
@@ -156,7 +156,7 @@
 	 * Only logs when `$LOGGING_VERBOSITY` is Debug and below.
 	 * @param string $msg String message to log.
 	 */
-	function log_debug(string $msg) {
+	function log_debug(?string $msg) {
 		_log_message($msg, LoggingVerbosity::Debug);
 	}