What are some best practices for using PHP to write to a .php file, such as a config.php file?

When writing to a .php file like a config.php file, it is important to ensure that the file is not publicly accessible to prevent security risks. One best practice is to use PHP functions like file_put_contents() or fwrite() to write to the file securely. Additionally, it is recommended to sanitize user input and validate data before writing it to the file to prevent any potential vulnerabilities. 

<?php
// Data to write to the config.php file
$data = "<?php\n";
$data .= "// Configurations\n";
$data .= "\$config['key'] = 'value';\n";

// Write data to the config.php file
file_put_contents('config.php', $data);
?>

Keywords

file handling writing to file config.php security error handling

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