What are the potential issues with using the is_file function in PHP, as seen in the provided code snippet?

The potential issue with using the is_file function in PHP is that it may return false positives for symbolic links. To solve this issue, you can use the is_link function to check if the file is a symbolic link before using is_file. By first checking if the file is a symbolic link, you can ensure that is_file accurately identifies regular files. 

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

if (is_link($file_path)) {
    echo "The file is a symbolic link.";
} elseif (is_file($file_path)) {
    echo "The file is a regular file.";
} else {
    echo "The file does not exist or is not a regular file.";
}

Keywords

is_file PHP file system error handling permissions

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