1--TEST-- 2Test is_readable() function: error conditions 3--FILE-- 4<?php 5/* Prototype: bool is_readable ( string $filename ); 6 Description: Tells whether the filename is readable 7*/ 8 9echo "*** Testing is_readable(): error conditions ***\n"; 10var_dump( is_readable() ); // args < expected 11var_dump( is_readable(1, 2) ); // args > expected 12 13echo "\n*** Testing is_readable() on non-existent file ***\n"; 14var_dump( is_readable(__DIR__."/is_readable.tmp") ); 15 16echo "Done\n"; 17?> 18--EXPECTF-- 19*** Testing is_readable(): error conditions *** 20 21Warning: is_readable() expects exactly 1 parameter, 0 given in %s on line %d 22NULL 23 24Warning: is_readable() expects exactly 1 parameter, 2 given in %s on line %d 25NULL 26 27*** Testing is_readable() on non-existent file *** 28bool(false) 29Done 30