socket_cmsg_space

Function • Params and return types changed in PHP 8.0

Calculate message buffer size.

PHP 5.3-5.4
PHP 5.5
Added
PHP 5.6
PHP 7
PHP 8.0
Improved
PHP 8.1
PHP 8.2-8.3
PHP 8.4
PHP 8.5
PHP 8.6

socket_cmsg_space Function synopsis

socket_cmsg_space(
    int $level,
    int $type,
    int $num = 0
  ): ?int

Parameters

$level

Typeint

$type

Typeint

$num

OptionalTypeintDefault value0

Return value

Type?int

Changes to the socket_cmsg_space Function

PHP 8.0

  • Return type added: ?int
  • Optional parameter added - #3: int $num = 0
-socket_cmsg_space($level, $type)
+socket_cmsg_space(
+    int $level,
+    int $type,
+    int $num = 0
+  ): ?int

PHP 5.5

  • Function added

socket_cmsg_space Function Availability

PHP VersionAvailability
PHP 8.6Upcoming Release Yes
PHP 8.5Supported (Latest) Yes
PHP 8.4Supported Yes
PHP 8.3Security-Fixes Only Yes
PHP 8.2Security-Fixes Only Yes
PHP 8.1Unsupported Yes
PHP 8.0Unsupported Yes
PHP 7.4Unsupported Yes
PHP 7.3Unsupported Yes
PHP 7.2Unsupported Yes
PHP 7.1Unsupported Yes
PHP 7.0Unsupported Yes
PHP 5.6Unsupported Yes
PHP 5.5Unsupported Yes
PHP 5.4Unsupported No
PHP 5.3Unsupported No