deflate_init
Function • Params changed in PHP 8.3
Initialize an incremental deflate context.
deflate_init Function synopsis
deflate_init(int $encoding, object|array $options = []): DeflateContext|falseParameters
$encoding
Typeint
One of the ZLIB_ENCODING_* constants.
$options
OptionalTypeobject|arrayDefault value[]
An associative array which may contain the following elements:
Return value
TypeDeflateContext|false
Returns a deflate context resource (zlib.deflate) on
success, or false on failure.
Changes to the deflate_init Function
PHP 8.3
- Parameter type changed for parameter #2 (
$options):arraytoobject|array
- deflate_init(int $encoding, array $options = []): DeflateContext|false
+ deflate_init(int $encoding, object|array $options = []): DeflateContext|falsePHP 8.0
- Return type added:
DeflateContext|false - Parameter type added for parameter #1 (
$encoding):int - Parameter name of parameter #2 changed:
$levelto$options - Parameter type added for parameter #2 (
$options):array - Parameter default value added for position #2 (
$options):[]
- deflate_init($encoding, $level)
+ deflate_init(int $encoding, array $options = []): DeflateContext|falsePHP 7.0
- Function added
deflate_init Function Availability
deflate_init Function Availability| PHP Version | Availability |
|---|---|
| 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 | No |
| PHP 5.5Unsupported | No |
| PHP 5.4Unsupported | No |
| PHP 5.3Unsupported | No |