PHP ZipArchive addFromString() Function

Last Updated : 07 Aug, 2024

The ZipArchive::addFromString() function is an inbuilt function in PHP that is used to add a file to the zip archive with its content.

Syntax:

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

Parameters: This function accepts three parameters as mentioned above and described below.

$name: This parameter holds the name of the file.
$content: This parameter holds the content that is used to create the entry. The content is used in a binary safe mode.
$flags: This parameter holds the bitmask that consists of ZipArchive::FL_OVERWRITE, ZipArchive::FL_ENC_GUESS, ZipArchive::FL_ENC_UTF_8, and ZipArchive::FL_ENC_CP437.

Return Value: This function returns “true” on success and “false” on failure.

Example 1: In this example, we will create a file and add the string to the file using the PHP ZipArchive::addFromString() function.

PHP

<?php

    // Create a new ZipArchive class
    $zip = new ZipArchive;

    // Open a zip file
    $file = $zip->open('geeks.zip');

    // If zip file is open
    if ($file === TRUE) {

        // Create new txt file and
        // add string to the file
        $zip->addFromString(
            'GFG.txt', 
            'Welcome to GeeksforGeeks'
        );

        // Close the opened file
        $zip->close();
        echo 'File Added Successfully.';
    } 
    else 
    {
        echo 'Failed to Adding file.';
    }
?>

Output:

Example 2: In this example, we will create multiple files and add the string to those files using PHP ZipArchive::addFromString() function.

PHP

<?php

    // Create a new ZipArchive class
    $zip = new ZipArchive;

    // Open a zip file
    $file = $zip->open('geeks.zip', ZipArchive::CREATE);

    // If zip file is open
    if ($file === TRUE) {

        // Create new txt file and
        // add string to the file
        $zip->addFromString(
            'GFG1.txt', 
            'Welcome to GeeksforGeeks'
        );

        $zip->addFromString(
            'GFG2.txt', 
            'A computer science portal'
        );

        $zip->addFromString(
            'GFG3.txt', 
            'Welcome to GeeksforGeeks'
        );

        // Close the opened file
        $zip->close();
        echo 'File Added Successfully.';
    } 
    else 
    {
        echo 'Failed to Add files.';
    }
?>

Output:

PHP ZipArchive extractTo() Function

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PHP ZipArchive addFromString() Function

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