Note that this function overwrites existing files of the same name.
(PHP 5 >= 5.2.0, PHP 7, PHP 8, PECL zip >= 1.1.0)
ZipArchive::addFromString — Add a file to a ZIP archive using its contents
$name, string $content, int $flags = ZipArchive::FL_OVERWRITE): boolAdd a file to a ZIP archive using its contents.
注意: 为了最大限度地提高代码可移植性，建议在 ZIP 文件名中使用斜线 (
/) 做为目录分隔符。
nameThe name of the entry to create.
contentThe contents to use to create the entry. It is used in a binary safe mode.
flags
Bitmask consisting of
ZipArchive::FL_OVERWRITE,
ZipArchive::FL_ENC_GUESS,
ZipArchive::FL_ENC_UTF_8,
ZipArchive::FL_ENC_CP437.
The behaviour of these constants is described on the
ZIP constants page.
成功时返回 true， 或者在失败时返回 false。
| 版本 | 说明 |
|---|---|
| 8.0.0 / 1.18.0 |
flags was added.
|
示例 #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';
}
?>示例 #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';
}
?>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.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.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.in case your string contain Arabic char, ZipArchive::addFromString will show it in wrong format char.
in this case you have to change your string coding from Unicode to Windows-1256 code
$filetxt = iconv('utf-8','CP1256',$filetxt);
$zip = new ZipArchive;
$zipFName = "Tmp.zip";
if ($zip->open($zipFName, ZipArchive::CREATE) === TRUE)
{
$zip->addFromString($fileName . '.csv', $filetxt);
$zip->close();
}Although this function displaces files of the same name, in actual fact, the original file is blanked and a new entry is added. The numFiles property is incremented.
Example:
File 1: foo
File 2: bar
$zip->addFromString('foo', 'new foo');
File 1:
File 2: bar
File 3: fooZipArchive::FL_ENC_GUESS, ZipArchive::FL_ENC_UTF_8, and ZipArchive::FL_ENC_CP437 affect the $name parameter, not $content