gzwrite
(PHP 4, PHP 5, PHP 7, PHP 8)
gzwrite — Binary-safe gz-file write
說明
gzwrite(resource
$stream, string $data, ?int $length = null): int|false
gzwrite() writes the contents of
data to the given gz-file.
參數
-
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 ofdatais reached, whichever comes first.
返回值
Returns the number of (uncompressed) bytes written to the given gz-file
stream, 或者在失敗時返回 false.
更新日誌
| 版本 | 說明 |
|---|---|
| 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.
|
範例
示例 #1 gzwrite() example
<?php
$string = 'Some information to compress';
$gz = gzopen('somefile.gz','w9');
gzwrite($gz, $string);
gzclose($gz);
?>