$testfile = "data.txt";
if(!file_exists($testfile)) {
echo "Error -- $testfile doesn't exist!
";
exit;
}
echo "What we know about the file $testfile
";
if(is_dir($testfile)) echo "It is a directory.
";
if(is_file($testfile)) echo "It is an actual file (not symbolic link)
";
if(is_link($testfile)) echo "It is a symbolic link to a real file
";
if(is_uploaded_file($testfile)) echo "It is an uploaded file
";
if(is_readable($testfile)) echo "The file is readable by PHP
";
if(is_writeable($testfile)) echo "The file is writeable by PHP
";
if(is_executable($testfile)) echo "The file is executable by PHP
";
?>