PHP Manual
ZipArchive
Replace file in ZIP archive with a given path

ZipArchive::replaceFile

(PHP >= 8.0.0, PECL zip >= 1.18.0)

ZipArchive::replaceFile — Replace file in ZIP archive with a given path

Description

public ZipArchive::replaceFile(
    string $filepath,
    int $index,
    int $start = 0,
    int $length = ZipArchive::LENGTH_TO_END,
    int $flags = 0
): bool

Replace file in ZIP archive with a given path.

Note: For maximum portability, it is recommended to always use forward slashes (/) as directory separator in ZIP filenames.

Parameters

filepath: The path to the file to add.
index: The index of the file to be replaced, its name is unchanged.
start: For partial copy, start position.
length: For partial copy, length to be copied, if ZipArchive::LENGTH_TO_END (0) the file size is used, if ZipArchive::LENGTH_UNCHECKED the whole file is used (starting from start).
flags: Bitmask consisting of ZipArchive::FL_ENC_GUESS, ZipArchive::FL_ENC_UTF_8, ZipArchive::FL_ENC_CP437, ZipArchive::FL_OPEN_FILE_NOW. The behaviour of these constants is described on the ZIP constants page.

Return Values

Returns true on success or false on failure.

Changelog

Version	Description
8.3.0, PECL zip 1.22.1	`ZipArchive::FL_OPEN_FILE_NOW` was added.
8.3.0, PECL zip 1.22.2	`ZipArchive::LENGTH_TO_END` and `ZipArchive::LENGTH_UNCHECKED` were added.

Examples

This example opens a ZIP file archive test.zip and replaces index 1 entry with /path/to/index.txt.

Example #1 Open and replace

<?php
$zip = new ZipArchive;
if ($zip->open('test.zip') === TRUE) {
$zip->replaceFile('/path/to/index.txt', 1);
$zip->close();
echo 'ok';
} else {
echo 'failed';
}
?>