让我们试着获取更多的信息。
是什么
$file = 'p:\muh';
error_reporting(E_ALL);
ini_set('display_errors', true);
echo 'phpversion: ', phpversion(), "\n";
echo 'uname: ', php_uname("s r"), "\n"; // name/release of the operating system
echo 'sapi: ', php_sapi(), "\n";
echo $file, file_exists($file) ? ' exists' : ' does not exist', "\n";
echo $file, is_readable($file) ? ' is readable' : ' is NOT readable', "\n";
echo $file, is_writable($file) ? ' is writable' : ' is NOT writable', "\n";
$fp = fopen($file, 'a+');
if ( !$fp ) {
echo 'last error: ';
var_dump(error_get_last());
}
else {
echo "ok.\n";
}
另请参见:
http://docs.php.net/error_get_last