stream_set_blocking

Function • Params and return types changed in PHP 8.0

Set blocking/non-blocking mode on a stream.

PHP 5
PHP 7
PHP 8.0
Improved
PHP 8.1
PHP 8.2-8.3
PHP 8.4
PHP 8.5
PHP 8.6

stream_set_blocking Function synopsis

stream_set_blocking($stream, bool $enable): bool

Parameters

$stream

The stream.

$enable

Typebool

If $enable is false, the given stream will be switched to non-blocking mode, and if true, it will be switched to blocking mode. This affects calls like fgets and fread that read from the stream. In non-blocking mode an fgets call will always return right away while in blocking mode it will wait for data to become available on the stream.

Return value

Typebool

Returns true on success, false on failure

Changes to the stream_set_blocking Function

PHP 8.0

  • Return type added: bool
  • Parameter name of parameter #1 changed: $socket to $stream
  • Parameter name of parameter #2 changed: $mode to $enable
  • Parameter type added for parameter #2 ($enable): bool
- stream_set_blocking($socket, $mode)
+ stream_set_blocking($stream, bool $enable): bool

stream_set_blocking 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 Yes
PHP 5.3Unsupported Yes