What are the best practices for handling file permissions in PHP when working with text files as databases?

When working with text files as databases in PHP, it is important to handle file permissions properly to ensure data security and integrity. To do this, you should set appropriate file permissions to restrict access to the files, preventing unauthorized users from reading or modifying the data. 

// Set file permissions to restrict access
$file = 'data.txt';
$permissions = 0600; // Read and write permissions for owner only

if (file_exists($file)) {
    chmod($file, $permissions);
} else {
    touch($file); // Create file if it doesn't exist
    chmod($file, $permissions);
}

Keywords

file permissions PHP text files databases security

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