What are the common pitfalls to avoid when working with file and folder operations in PHP?

One common pitfall when working with file and folder operations in PHP is not properly checking if a file or folder exists before trying to perform operations on it. This can lead to errors or unexpected behavior in your code. To avoid this, always use functions like file_exists() or is_dir() to check if a file or folder exists before attempting to work with it. 

// Check if a file exists before performing operations on it
$file_path = 'example.txt';

if (file_exists($file_path)) {
    // Perform operations on the file
    $file_contents = file_get_contents($file_path);
    echo $file_contents;
} else {
    echo 'File does not exist.';
}

Keywords

file handling folder operations PHP functions error handling security vulnerabilities

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