На поведінку цих функцій випливають налаштування в php.ini.
The zlib extension offers the option to transparently compress your pages on-the-fly, if the requesting browser supports this. Therefore there are three options in the configuration file php.ini.
| Назва | Початково | Де можна змінювати | Журнал змін |
|---|---|---|---|
| zlib.output_compression | "0" | INI_ALL |
|
| zlib.output_compression_level | "-1" | INI_ALL |
|
| zlib.output_handler | "" | INI_ALL |
Тут є коротке пояснення директив конфігурації.
zlib.output_compression
bool/int
Whether to transparently compress pages. If this option is set to "On" in php.ini or the Apache configuration, pages are compressed if the browser sends an "Accept-Encoding: gzip" or "deflate" header. "Content-Encoding: gzip" (respectively "deflate") and "Vary: Accept-Encoding" headers are added to the output. In runtime, it can be set only before sending any output.
This option also accepts integer values instead of boolean "On"/"Off", using this you can set the output buffer size (default is 4KB).
Зауваження:
output_handler must be empty if this is set 'On' ! Instead you must use
zlib.output_handler.
zlib.output_compression_level
int
Compression level used for transparent output compression. Specify a value between 0 (no compression) to 9 (most compression). The default value, -1, lets the server decide which level to use.
zlib.output_handler
string
You cannot specify additional output handlers if zlib.output_compression is activated here. This setting does the same as output_handler but in a different order.