Php/docs/function.inflate-init
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inflate_init
(PHP 7)
inflate_init — Initialize an incremental inflate context
Description
inflate_init
( int $encoding
[, array $options = []
] ) : InflateContext|false
Initialize an incremental inflate context with the specified
encoding.
Parameters
encoding- One of the
ZLIB_ENCODING_*constants. options- An associative array which may contain the following elements:
level- The compression level in range -1..9; defaults to -1.
memory- The compression memory level in range 1..9; defaults to 8.
window- The zlib window size (logarithmic) in range 8..15; defaults to 15.
strategy- One of
ZLIB_FILTERED,ZLIB_HUFFMAN_ONLY,ZLIB_RLE,ZLIB_FIXEDorZLIB_DEFAULT_STRATEGY(the default). dictionary- A string or an array of strings of the preset dictionary (default: no preset dictionary).
Return Values
Returns an inflate context resource (zlib.inflate) on
success, or FALSE on failure.
Errors/Exceptions
If an invalid encoding or option is passed to options,
or the context couldn't be created, an error of level
E_WARNING is generated.
Changelog
| Version | Description |
|---|---|
| 8.0.0 | On success, this function returns an InflateContext instance now;
previously, a resource was returned. |
See Also
- inflate_add() - Incrementally inflate encoded data
- deflate_init() - Initialize an incremental deflate context
