Date/Time: Prevent type errors in `current_time()`.

Prevents a potential type error when calling `current_time( 'timestamp' )` by casting `get_option( 'gmt_offset' )` to a float prior to performing calculations with the value.

This mainly accounts for incorrect storage of values, such as an empty string or city name.

Follow up to [45856], [55054], [55598].

Props hellofromtonya, peterwilsoncc, rarst, costdev, Nick_theGeek, SergeyBiryukov, johnbillion, desrosj, reputeinfosystems, audrasjb, oglekler.
Fixes #57035.

Built from https://develop.svn.wordpress.org/trunk@58923


git-svn-id: http://core.svn.wordpress.org/trunk@58319 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/functions.php

@@ -73,7 +73,7 @@ function mysql2date( $format, $date, $translate = true ) {
 function current_time( $type, $gmt = 0 ) {
 	// Don't use non-GMT timestamp, unless you know the difference and really need to.
 	if ( 'timestamp' === $type || 'U' === $type ) {
-		return $gmt ? time() : time() + (int) ( get_option( 'gmt_offset' ) * HOUR_IN_SECONDS );
+		return $gmt ? time() : time() + (int) ( (float) get_option( 'gmt_offset' ) * HOUR_IN_SECONDS );
 	}
 
 	if ( 'mysql' === $type ) {

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.7-alpha-58922';
+$wp_version = '6.7-alpha-58923';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.