1--TEST-- 2Test strip_tags() function : usage variations - invalid values for 'str' and 'allowable_tags' 3--FILE-- 4<?php 5/* Prototype : string strip_tags(string $str [, string $allowable_tags]) 6 * Description: Strips HTML and PHP tags from a string 7 * Source code: ext/standard/string.c 8*/ 9 10/* 11 * testing functionality of strip_tags() by giving invalid values for $str and $allowable_tags argument 12*/ 13 14echo "*** Testing strip_tags() : usage variations ***\n"; 15 16$strings = array ( 17 "<abc>hello</abc> \t\tworld... <ppp>strip_tags_test</ppp>", 18 '<abc>hello</abc> \t\tworld... <ppp>strip_tags_test</ppp>', 19 "<%?php hello\t world?%>", 20 '<%?php hello\t world?%>', 21 "<<htmL>>hello<</htmL>>", 22 '<<htmL>>hello<</htmL>>', 23 "<a.>HtMl text</.a>", 24 '<a.>HtMl text</.a>', 25 "<nnn>I am not a valid html text</nnn>", 26 '<nnn>I am not a valid html text</nnn>', 27 "<nnn>I am a quoted (\") string with special chars like \$,\!,\@,\%,\&</nnn>", 28 '<nnn>I am a quoted (\") string with special chars like \$,\!,\@,\%,\&</nnn>', 29); 30 31$quotes = "<nnn><abc><%?<<html>>"; 32 33//loop through the various elements of strings array to test strip_tags() functionality 34$iterator = 1; 35foreach($strings as $string_value) 36{ 37 echo "-- Iteration $iterator --\n"; 38 var_dump( strip_tags($string_value, $quotes) ); 39 $iterator++; 40} 41 42echo "Done"; 43?> 44--EXPECT-- 45*** Testing strip_tags() : usage variations *** 46-- Iteration 1 -- 47string(43) "<abc>hello</abc> world... strip_tags_test" 48-- Iteration 2 -- 49string(45) "<abc>hello</abc> \t\tworld... strip_tags_test" 50-- Iteration 3 -- 51string(0) "" 52-- Iteration 4 -- 53string(0) "" 54-- Iteration 5 -- 55string(18) "<htmL>hello</htmL>" 56-- Iteration 6 -- 57string(18) "<htmL>hello</htmL>" 58-- Iteration 7 -- 59string(9) "HtMl text" 60-- Iteration 8 -- 61string(9) "HtMl text" 62-- Iteration 9 -- 63string(37) "<nnn>I am not a valid html text</nnn>" 64-- Iteration 10 -- 65string(37) "<nnn>I am not a valid html text</nnn>" 66-- Iteration 11 -- 67string(73) "<nnn>I am a quoted (") string with special chars like $,\!,\@,\%,\&</nnn>" 68-- Iteration 12 -- 69string(75) "<nnn>I am a quoted (\") string with special chars like \$,\!,\@,\%,\&</nnn>" 70Done 71