Syntax
bool is_readable ( string $filename )
Popis
Príkaz jazyka PHP
Tells whether the filename is readable.
Parametre
filename - Path to the file.
Návratové hodnoty
Returns TRUE if the file or directory specified by filename exists and is readable, FALSE otherwise.
Poznámky
Keep in mind that PHP may be accessing the file as the user id that the web server runs as (often 'nobody'). Safe mode limitations are not taken into account before PHP 5.1.5.
The results of this function are cached. See clearstatcache for more details.
The check is done using the real UID/GID instead of the effective one.
Príklad
<?php
$filename =
'test.txt';
if (is_readable($filename)) {
echo 'The file is readable';
} else {
echo 'The file is not readable';
}
?>
Pozri aj
is_writable, file_exists, fgets