What are the potential pitfalls of using file_exists() function in PHP when checking for file existence?

The potential pitfall of using file_exists() function in PHP when checking for file existence is that it can return true for directories as well. To accurately check if a file exists, it's better to use is_file() function instead. 

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

if (is_file($file_path)) {
    echo 'File exists.';
} else {
    echo 'File does not exist.';
}

Keywords

file_exists PHP file system error handling permissions

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