PHP - Manual: ZipArchive::addFromString

2024-11-15

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ZipArchive::addFromString

(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

说明

public ZipArchive::addFromString(string $name, string $content, int $flags = ZipArchive::FL_OVERWRITE): bool

Add 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。

参数

name: The name of the entry to create.
content: The 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.

返回值

成功时返回 true，或者在失败时返回 false。

更新日志

版本	说明
8.0.0 / 1.18.0	`flags` was added.

范例

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';
}
?>

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User Contributed Notes 7 notes

down

hossam6 at gmail dot com ¶

1 year ago


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();
}

down

Jacques Chester ¶

15 years ago


Note that this function overwrites existing files of the same name.

down

gbti at ukr dot net ¶

13 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.

down

tahazit dot co dot il at gmail dot com ¶

7 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.

down

xslidian at lidian dot info ¶

9 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.

down

calebcjh ¶

12 years ago


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: foo

down

Jon at 9072997 dot com (yes that is real) ¶

1 month ago


ZipArchive::FL_ENC_GUESS, ZipArchive::FL_ENC_UTF_8, and ZipArchive::FL_ENC_CP437 affect the $name parameter, not $content

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官方地址：https://www.php.net/manual/en/ziparchive.addfromstring.php

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ZipArchive::addFromString

说明

参数

返回值

更新日志

范例

User Contributed Notes 7 notes