(PHP Extension) Replace/Update a FIle in a .zip

Demonstrates how to replace/update a file from a .zip. Note: This requires the entire .zip to be rewritten.

Chilkat PHP Downloads PHP Extension for Windows, Linux, MacOS, Alpine Linux

<?php

include("chilkat.php");
// Use "chilkat_9_5_0.php" for versions of Chilkat < 10.0.0

// This requires the Chilkat Zip API to have been previously unlocked.
// See Unlock Chilkat Zip for sample code.

// First prepare a .zip and write it..
$zip = new CkZip();

$zip->NewZip('qa_output/abc.zip');

// Add some files..
// entry is a CkZipEntry
$entry = $zip->AppendString('a.txt','aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa');

// entry is a CkZipEntry
$entry = $zip->AppendString('b.txt','bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb');

// entry is a CkZipEntry
$entry = $zip->AppendString('c.txt','cccccccccccccccccccccccccccccccccccc');

// Write to qa_output/abc.zip
// This .zip contains three files: a.txt, b.txt, and c.txt
$success = $zip->WriteZipAndClose();

// -------------------------------------------------------------------
// Open abc.zip, replace the content of the "b.txt" entry with something else, and re-write.
$zip2 = new CkZip();
$zip2->OpenZip('qa_output/abc.zip');

// entry is a CkZipEntry
$entry = $zip2->GetEntryByName('b.txt');
$entry->ReplaceString('This is the new content.  bbbbbbbbbbbbbbbbbbbbbb','utf-8');

// Write the modified .zip back to "abc.zip"
$success = $zip2->WriteZipAndClose();

print 'success.' . "\n";

?>