gzputs
As was shown to me in another forum there is a way to get the uncompressed size of the gz file by viewing the last 4 bytes of the gz file.
Here is a piece of code that will do this
<?php
$FileRead = 'SomeText.txt';
$FileOpen = fopen($FileRead, "rb");
fseek($FileOpen, -4, SEEK_END);
$buf = fread($FileOpen, 4);
$GZFileSize = end(unpack("V", $buf));
fclose($FileOpen);
$HandleRead = gzopen($FileRead, "rb");
$ContentRead = gzread($HandleRead, $GZFileSize);
?>
This will read the last 4 bytes of the gz file and use it as the file int for the gzread.
Thanks to stereofrog for helping me with this code.
gzread
(PHP 4, PHP 5)
gzread — Liest binary-safe aus einer gz-Datei
Beschreibung
string gzread
( resource $zp
, int $length
)
gzread() liest bis zu length Bytes aus der gegebenen gz-Datei Resource. Lesen stoppt, wenn length (unkomprimierte) Bytes gelesen wurden oder EOF (Dateiende) erreicht wurde, je anchdem, was zuerst eintrifft.
Parameter-Liste
- zp
-
Die gz-Datei Resource. Dies muss auf eine gültige, erfolgreich mit gzopen() geöffnete Datei zeigen.
- length
-
Die Anzahl der zu lesenden Bytes.
Rückgabewerte
Die gelesenen Daten.
Beispiele
Beispiel #1 gzread() Beispiel
<?php
// Liest den Inhalt einer gz-Datei in einen String
$filename = "/usr/local/something.txt.gz";
$zd = gzopen($filename, "r");
$contents = gzread($zd, 10000);
gzclose($zd);
?>
Siehe auch
add a note
User Contributed Notesgzread
zaotong at yahoo dot com
08-Mar-2007 12:06
08-Mar-2007 12:06
methatron at hotmail dot com
27-Sep-2006 09:33
27-Sep-2006 09:33
Be aware that gzread's second parameter - length reffers to the file's uncompressed size, therefore using this code:
<?php
$file_name = "/usr/local/something.txt.gz";
if($file_handle = gzopen($file_name, "r"))
{
$contents = gzread($file_handle, filesize($file_name));
gzclose($file_name);
}
?>
will probably truncate the content of the file as filesize checks for the file's compressed size.
So either use the actual uncompressed size, if you know it, or use an aribtrary big enough length, as gzreading will stop at the end of the file anyway.