How to Use PHP zip_read() to Read ZIP File Entries

zip_read()

is a PHP function that reads the next entry from an opened ZIP archive and returns detailed information about that entry.

Syntax

zip_read(resource $zip)

The $zip parameter is a ZIP file resource returned by zip_open().

Usage Steps

Open the ZIP file

$zip = zip_open('path/to/zipfile.zip');

Check if the ZIP file opened successfully

if ($zip) {
    // ZIP file opened successfully, continue processing
} else {
    // ZIP file failed to open, handle error
}

Loop through the entries

while ($zip_entry = zip_read($zip)) {
    // Process the current entry
}

Close the ZIP file

zip_close($zip);

Within the loop, each call to zip_read() returns the next entry. The variable $zip_entry holds the entry's details, which can be accessed using functions such as zip_entry_name() for the entry name and zip_entry_filesize() for its size.

Example: reading all entries and outputting their names and sizes

$zip = zip_open('path/to/zipfile.zip');

if ($zip) {
    while ($zip_entry = zip_read($zip)) {
        $name = zip_entry_name($zip_entry);
        $size = zip_entry_filesize($zip_entry);
        echo "Name: $name, Size: $size bytes
";
    }
    zip_close($zip);
} else {
    echo "Failed to open ZIP file
";
}

This code opens the specified ZIP file, iterates over each entry, retrieves the entry name and size, and prints them. Note that zip_read() only reads entry metadata; it does not extract file contents. To extract files, use functions like zip_entry_open() and zip_entry_read().

In summary, zip_read() is a useful PHP function for reading ZIP file entry information, facilitating further processing of archive contents.