Adding upstream version 6.5+dfsg1.upstream/6.5+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 42 insertions, 0 deletions

diff --git a/wp-includes/compat.php b/wp-includes/compat.php
index 5bfdbc2..95c4af4 100644
--- a/wp-includes/compat.php
+++ b/wp-includes/compat.php
@@ -420,6 +420,38 @@ if ( ! function_exists( 'array_key_last' ) ) {
 	}
 }
 
+if ( ! function_exists( 'array_is_list' ) ) {
+	/**
+	 * Polyfill for `array_is_list()` function added in PHP 8.1.
+	 *
+	 * Determines if the given array is a list.
+	 *
+	 * An array is considered a list if its keys consist of consecutive numbers from 0 to count($array)-1.
+	 *
+	 * @see https://github.com/symfony/polyfill-php81/tree/main
+	 *
+	 * @since 6.5.0
+	 *
+	 * @param array<mixed> $arr The array being evaluated.
+	 * @return bool True if array is a list, false otherwise.
+	 */
+	function array_is_list( $arr ) {
+		if ( ( array() === $arr ) || ( array_values( $arr ) === $arr ) ) {
+			return true;
+		}
+
+		$next_key = -1;
+
+		foreach ( $arr as $k => $v ) {
+			if ( ++$next_key !== $k ) {
+				return false;
+			}
+		}
+
+		return true;
+	}
+}
+
 if ( ! function_exists( 'str_contains' ) ) {
 	/**
 	 * Polyfill for `str_contains()` function added in PHP 8.0.
@@ -497,3 +529,13 @@ if ( ! defined( 'IMAGETYPE_WEBP' ) ) {
 if ( ! defined( 'IMG_WEBP' ) ) {
 	define( 'IMG_WEBP', IMAGETYPE_WEBP );
 }
+
+// IMAGETYPE_AVIF constant is only defined in PHP 8.x or later.
+if ( ! defined( 'IMAGETYPE_AVIF' ) ) {
+	define( 'IMAGETYPE_AVIF', 19 );
+}
+
+// IMG_AVIF constant is only defined in PHP 8.x or later.
+if ( ! defined( 'IMG_AVIF' ) ) {
+	define( 'IMG_AVIF', IMAGETYPE_AVIF );
+}