Note that this function overwrites existing files of the same name.
ZipArchive::addFromString
(PHP 5 >= 5.2.0, PHP 7, PECL zip >= 1.1.0)
ZipArchive::addFromString — Add a file to a ZIP archive using its contents
Description
ZipArchive::addFromString
( string
$localname
, string $contents
) : boolAdd a file to a ZIP archive using its contents.
Note: For maximum portability, it is recommended to always use forward slashes (/) as directory separator in ZIP filenames.
Parameters
-
localname -
The name of the entry to create.
-
contents -
The contents to use to create the entry. It is used in a binary safe mode.
Return Values
Returns TRUE on success or FALSE on failure.
Examples
Example #1 Add an entry to a new archive
<?php
$zip = new ZipArchive;
$res = $zip->open('test.zip', ZipArchive::CREATE);
if ($res === TRUE) {
$zip->addFromString('test.txt', 'file content goes here');
$zip->close();
echo 'ok';
} else {
echo 'failed';
}
?>
Example #2 Add file to a directory inside an archive
<?php
$zip = new ZipArchive;
if ($zip->open('test.zip') === TRUE) {
$zip->addFromString('dir/test.txt', 'file content goes here');
$zip->close();
echo 'ok';
} else {
echo 'failed';
}
?>
add a note
User Contributed Notes 5 notes
gbti at ukr dot net ¶
10 years ago
if you try:
<?php
$zip->open("file", ZipArchive::CREATE);
$zip->addFromString("russian_letters/options.xml");
?>
wrong directory will be created.
if you try:
<?php
$zip->addEmptyDir("russian_letters");
?>
All be fine.
tahazit dot co dot il at gmail dot com ¶
4 years ago
On PHP >5.4, This function will usually create any subfolders inside the ZIP archive.
For instance:
$zip->addFromString ( 'path/to/file.txt' , $data );
will create the folders "path/", and "path/to/" in addition to placing the newly created file "file.txt" in "path/to/" folder.
xslidian at lidian dot info ¶
6 years ago
Although numFiles will change after overwriting a file, it will be back normal when you ZipArchive::close() and open() it again.
NULL indexes don't persist either. Only the new order is kept. So feel free to overwrite.
Here overwriting works the same as deleting and adding. So it's not necessary to ZipArchive::deleteName() first.
