(PHP 4, PHP 5, PHP 7, PHP 8)
gzwrite — Binary-safe gz-file write
$stream
, string $data
, int|null $length = null
) : int|false
gzwrite() writes the contents of
data to the given gz-file.
streamThe gz-file pointer. It must be valid, and must point to a file successfully opened by gzopen().
dataThe string to write.
length
The number of uncompressed bytes to write. If supplied, writing will
stop after length (uncompressed) bytes have been
written or the end of data is reached,
whichever comes first.
注意:
Note that if the
lengthargument is given, then the magic_quotes_runtime configuration option will be ignored and no slashes will be stripped fromdata.
Returns the number of (uncompressed) bytes written to the given gz-file
stream, 或者在失败时返回 false.
| 版本 | 说明 |
|---|---|
| 8.0.0 |
length is nullable now; previously, the default was
0.
|
| 7.4.0 |
This functions returns false on failure now; previously 0 was returned.
|
示例 #1 gzwrite() example
<?php
$string = 'Some information to compress';
$gz = gzopen('somefile.gz','w9');
gzwrite($gz, $string);
gzclose($gz);
?>