1--TEST-- 2Test unlink() function : usage variations - unlinking file in a directory 3--SKIPIF-- 4<?php 5if (substr(PHP_OS, 0, 3) != 'WIN') { 6 die('skip only on Windows'); 7} 8?> 9--FILE-- 10<?php 11/* Prototype : bool unlink ( string $filename [, resource $context] ); 12 Description : Deletes filename 13*/ 14 15/* Delete file having default permission but its dir having readonly permission 16 Delete file having readonly permission but dir having default permission 17*/ 18 19 20$file_path = dirname(__FILE__); 21 22// temp dir name used here 23$dirname = "$file_path/unlink_variation1"; 24// temp filename used here 25$filename = "$dirname/unlink_variation1-win32.tmp"; 26 27echo "\n*** Testing unlink() on file inside a directory ***\n"; 28// create temp dir 29mkdir($dirname); 30// create temp file inside $dirname 31$fp = fopen($filename, "w"); 32fclose($fp); 33 34echo "-- Unlink file having default permission and its dir having read only permission --\n"; 35// remove write permission of $dirname 36// on windows dir permission is not respected 37var_dump( chmod($dirname, 0444) ); 38// now try deleting $filename 39var_dump( unlink($filename) ); // expected: true 40var_dump( file_exists($filename) ); // confirm file is deleted 41 42// remove the dir 43var_dump( chmod($dirname, 0777) ); 44rmdir($dirname); 45 46echo "\n-- Unlinking file without write permission, its dir having default permission --\n"; 47// create the temp dir 48mkdir($dirname); 49 50// create the temp file 51$fp = fopen($filename, "w"); 52fclose($fp); 53 54// remove write permission from file 55var_dump( chmod($filename, 0444) ); 56 57// now try deleting temp file inside $dirname 58var_dump( unlink($filename) ); // expected: false 59 60// reassign write permission to temp file 61chmod($filename, 0777); 62// delete temp file 63var_dump( unlink($filename) ); 64var_dump( file_exists($filename) ); // confirm file is deleted 65// remove temp dir 66rmdir($dirname); 67 68echo "Done\n"; 69?> 70--EXPECTF-- 71*** Testing unlink() on file inside a directory *** 72-- Unlink file having default permission and its dir having read only permission -- 73bool(true) 74bool(true) 75bool(false) 76bool(true) 77 78-- Unlinking file without write permission, its dir having default permission -- 79bool(true) 80 81Warning: unlink(%s/unlink_variation1/unlink_variation1-win32.tmp): Permission denied in %s on line %d 82bool(false) 83bool(true) 84bool(false) 85Done 86
