1--TEST-- 2Test session_id() function : error functionality 3--EXTENSIONS-- 4session 5--SKIPIF-- 6<?php include('skipif.inc'); ?> 7--FILE-- 8<?php 9 10ob_start(); 11 12echo "*** Testing session_id() : error functionality ***\n"; 13 14var_dump(session_id("test")); 15var_dump(session_id()); 16var_dump(session_id("1234567890")); 17var_dump(session_id()); 18var_dump(session_start()); 19var_dump(session_id("1234567890")); 20var_dump(session_destroy()); 21var_dump(session_id()); 22 23echo "Done"; 24ob_end_flush(); 25?> 26--EXPECTF-- 27*** Testing session_id() : error functionality *** 28string(0) "" 29string(4) "test" 30string(4) "test" 31string(10) "1234567890" 32bool(true) 33 34Warning: session_id(): Session ID cannot be changed when a session is active in %s on line %d 35bool(false) 36bool(true) 37string(0) "" 38Done 39