What steps can be taken to troubleshoot and resolve "Permission denied" errors when writing to files on a server?

When encountering "Permission denied" errors when writing to files on a server, the issue is typically related to insufficient file permissions. To resolve this, you can check and adjust the file permissions to ensure that the user running the PHP script has the necessary write permissions. 

// Set the file path
$file_path = 'path/to/file.txt';

// Check and adjust file permissions
if (is_writable($file_path)) {
    // Proceed with writing to the file
    $file = fopen($file_path, 'w');
    fwrite($file, 'Hello, World!');
    fclose($file);
} else {
    // Adjust file permissions
    chmod($file_path, 0644);
}

Keywords

PHP file permissions server troubleshooting error handling

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