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is_readable
Description
bool is_readable ( string filename)Returns TRUE if the filename exists and is readable.
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.
Bemærk: Resultatet af denne funktion er cached. Se clearstatcache() for flere detaljer.
Vink: Fra og med PHP 5.0.0 kan denne funktion også bruges med nogle URL wrappers. Se Appendiks L for en liste over hvilke wrappers understøtter stat() familiens funktionalitet.
See also is_writable(), file_exists(), and fgets().