What are the limitations of using functions like is_file() and file_exists() in PHP for checking file existence based on partial filenames?

When using functions like is_file() and file_exists() in PHP to check for file existence based on partial filenames, the limitation is that these functions require the full path to the file for accurate results. To overcome this limitation, you can use the glob() function in PHP, which supports wildcard characters like * and ? to match partial filenames. 

$files = glob('/path/to/directory/*partial_filename*');

if (!empty($files)) {
    echo "File with partial filename exists.";
} else {
    echo "File with partial filename does not exist.";
}

Keywords

is_file file_exists limitations partial filenames PHP

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