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--TEST-- Test is_dir() function: usage variations - diff. path notations --FILE-- <?php /* Prototype: bool is_dir ( string $dirname ); Description: Tells whether the dirname is a directory Returns TRUE if the dirname exists and is a directory, FALSE otherwise. */ /* Passing dir names with different notations, using slashes, wild-card chars */ $file_path = dirname(__FILE__); echo "*** Testing is_dir() with different notations of dir names ***"; $dir_name = "/is_dir_variation4"; mkdir($file_path.$dir_name); $dirs_arr = array( "is_dir_variation4", "./is_dir_variation4", /* Testing a file trailing slash */ "is_dir_variation4/", "./is_dir_variation4/", /* Testing file with double trailing slashes */ "is_dir_variation4//", "./is_dir_variation4//", ".//is_dir_variation4//", "is_dir_vari*", /* Testing Binary safe */ "./is_dir_variation4/".chr(0), "is_dir_variation4\0" ); $count = 1; /* loop through to test each element the above array */ foreach($dirs_arr as $dir) { echo "\n-- Iteration $count --\n"; var_dump( is_dir($file_path."/".$dir ) ); $count++; } echo "\n*** Done ***"; ?> --CLEAN-- <?php $file_path = dirname(__FILE__); $dir_name = $file_path."/is_dir_variation4"; rmdir($dir_name); ?> --EXPECTF-- *** Testing is_dir() with different notations of dir names *** -- Iteration 1 -- bool(true) -- Iteration 2 -- bool(true) -- Iteration 3 -- bool(true) -- Iteration 4 -- bool(true) -- Iteration 5 -- bool(true) -- Iteration 6 -- bool(true) -- Iteration 7 -- bool(true) -- Iteration 8 -- bool(false) -- Iteration 9 -- Warning: is_dir() expects parameter 1 to be a valid path, string given in %s on line %d NULL -- Iteration 10 -- Warning: is_dir() expects parameter 1 to be a valid path, string given in %s on line %d NULL *** Done ***