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PHP Extension Examples


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(PHP Extension) GZip Create / Extract .gz File

Demonstrates how to compress a file to create a .gz (GZip) file.

Note: The .gz file format is a compressed file format. It contains a single file. The .gz file format is not an archive format (i.e. it does not contain a collection of files/directories such as with the .zip, .rar, or .tar file formats). GZip is often combined with TAR to create a .tgz (or .tar.gz).

Note: It is possible for a .gz to contain more than one file, but this is very uncommon.

Chilkat PHP Downloads

PHP Extension for Windows, Linux, and MAC OS X

<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

$gzip = new CkGzip();

//  Any string unlocks the component for the 1st 30-days.
$success = $gzip->UnlockComponent('Anything for 30-day trial');
if ($success != true) {
    print $gzip->lastErrorText() . "\n";
    exit;
}

//  File-to-file GZip:
//  Compress "hamlet.xml" to create "hamlet.xml.gz";
$success = $gzip->CompressFile('hamlet.xml','hamlet.xml.gz');
if ($success != true) {
    print $gzip->lastErrorText() . "\n";
    exit;
}

//  File-to-file ungzip
//  Decompress "hamlet.xml.gz" to create "hamletOut.xml";
$success = $gzip->UncompressFile('hamlet.xml.gz','hamletOut.xml');
if ($success != true) {
    print $gzip->lastErrorText() . "\n";
    exit;
}

//  File-to-string ungzip
//  Decompress the contents of a .gz directly to a string variable:
//  The 2nd argument indicates the charset of the character
//  data after it is decompressed.

$xmlStr = $gzip->uncompressFileToString('hamlet.xml.gz','utf-8');
if ($success != true) {
    print $gzip->lastErrorText() . "\n";
    exit;
}

print $xmlStr . "\n";

//  The Chilkat GZip API provides much more flexibility than shown
//  here.  See the reference documentation at
//  http://www.chilkatsoft.com/refdoc for more information.

?>

 

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