PHP Conference Nagoya 2025

gzgets

(PHP 4, PHP 5, PHP 7, PHP 8)

gzgetsGet line from file pointer

Description

gzgets(resource $stream, ?int $length = null): string|false

Gets a (uncompressed) string of up to length - 1 bytes read from the given file pointer. Reading ends when length - 1 bytes have been read, on a newline, or on EOF (whichever comes first).

Parameters

stream

The gz-file pointer. It must be valid, and must point to a file successfully opened by gzopen().

length

The length of data to get.

Return Values

The uncompressed string, or false on error.

Changelog

Version Description
8.0.0 length is nullable now; previously, the default was 1024.

Examples

Example #1 gzgets() example

<?php
$handle
= gzopen('somefile.gz', 'r');
while (!
gzeof($handle)) {
$buffer = gzgets($handle, 4096);
echo
$buffer;
}
gzclose($handle);
?>

See Also

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User Contributed Notes 3 notes

up
1
prismngp1 at yahoo dot com
22 years ago
<?
// this is simple code by VIJAY to unzip .gz file
$file = "/absolute/path/to/your/file" ;
$fp = fopen("$file", "w") ;
// file to be unzipped on your server
$filename = "filename.gz" ;
$zp = gzopen($filename, "r");

if ($zp)
{
while (!gzeof($zp))
{
$buff1 = gzgets ($zp, 4096) ;
fputs($fp, $buff1) ;
}
}
gzclose($zp) ;
fclose($fp) ;
?>
up
0
divinity76 at gmail dot com
5 years ago
PS when it encounters and breaks on a newline byte ("\n"), the newline byte itself is not included in the returned string.
up
0
Anonymous
19 years ago
For the above example by VIJAY, using gzgetc would be better, as I've encountered binary/text file incompatibilities (at least with PHP 4.0.4).
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