gzwrite
(PHP 4, PHP 5, PHP 7, PHP 8)
gzwrite — Binary-safe gz-file write
说明
$stream
, string $data
, int|null $length
= null
) : int|false
gzwrite() writes the contents of
data
to the given gz-file.
参数
-
stream
-
The gz-file pointer. It must be valid, and must point to a file successfully opened by gzopen().
-
data
-
The 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 ofdata
is reached, whichever comes first.注意:
Note that if the
length
argument is given, then the magic_quotes_runtime configuration option will be ignored and no slashes will be stripped fromdata
.
返回值
Returns the number of (uncompressed) bytes written to the given gz-file
stream, 或者在失败时返回 false
.
更新日志
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.
|
范例
示例 #1 gzwrite() example
<?php
$string = 'Some information to compress';
$gz = gzopen('somefile.gz','w9');
gzwrite($gz, $string);
gzclose($gz);
?>