--TEST-- Test fopen and fclose() functions - usage variations - "at" mode --SKIPIF-- <?php if( substr(PHP_OS, 0, 3) == "WIN" ) die('skip Do not run on Windows'); ?> --FILE-- <?php /* fopen() function: Prototype: resource fopen(string $filename, string $mode [, bool $use_include_path [, resource $context]] ); Description: Opens file or URL. */ /* fclose() function: Prototype: bool fclose ( resource $handle ); Description: Closes an open file pointer */ /* Test fopen() and fclose(): Opening the file in "at" mode, checking for the file creation, write & read operations, checking for the file pointer position, and fclose function */ $file_path = dirname(__FILE__); require($file_path."/file.inc"); create_files($file_path, 1, "text_with_new_line", 0755, 20, "w", "007_variation", 13, "bytes"); $file = $file_path."/007_variation13.tmp"; $string = "abcdefghij\nmnopqrst\tuvwxyz\n0123456789"; echo "*** Test fopen() & fclose() functions: with 'at' mode ***\n"; $file_handle = fopen($file, "at"); //opening the file "at" mode var_dump($file_handle); //Check for the content of handle var_dump( get_resource_type($file_handle) ); //Check for the type of resource var_dump( fwrite($file_handle, $string) ); //Check for write operation; passes; expected:size of the $string rewind($file_handle); var_dump( fread($file_handle, 100) ); //Check for read operation; fails; expected: empty string var_dump( ftell($file_handle) ); //File pointer position after read operation, expected at the end of the file var_dump( fclose($file_handle) ); //Check for close operation on the file handle var_dump( get_resource_type($file_handle) ); //Check whether resource is lost after close operation var_dump( filesize($file) ); //Check that data hasn't over written; Expected: Size of (initial data + newly added data) unlink($file); //Deleting the file fclose( fopen($file, "at") ); //Opening the non-existing file in "at" mode, which will be created var_dump( file_exists($file) ); //Check for the existence of file echo "*** Done ***\n"; --CLEAN-- <?php unlink(dirname(__FILE__)."/007_variation13.tmp"); ?> --EXPECTF-- *** Test fopen() & fclose() functions: with 'at' mode *** resource(%d) of type (stream) string(6) "stream" int(37) string(0) "" int(0) bool(true) string(7) "Unknown" int(57) bool(true) *** Done ***