What are the potential pitfalls of directly writing arrays to files in PHP, and how can they be avoided?

One potential pitfall of directly writing arrays to files in PHP is that the data may not be properly formatted for storage or retrieval. To avoid this, you can serialize the array before writing it to the file and unserialize it when reading it back. 

// Serialize the array before writing it to the file
$data = serialize($array);
file_put_contents('data.txt', $data);

// Unserialize the data when reading it back
$data = file_get_contents('data.txt');
$array = unserialize($data);

Keywords

serialization unserialize JSON file permissions data loss

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