1--TEST-- 2Test strip_tags() function : usage variations - invalid values for 'str' and valid '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 valid values for $allowable_tags argument 12*/ 13 14echo "*** Testing strip_tags() : usage variations ***\n"; 15 16// unexpected values for $string 17$strings = array ( 18 "<abc>hello</abc> \t\tworld... <ppp>strip_tags_test</ppp>", 19 '<abc>hello</abc> \t\tworld... <ppp>strip_tags_test</ppp>', 20 "<%?php hello\t world?%>", 21 '<%?php hello\t world?%>', 22 "<<htmL>>hello<</htmL>>", 23 '<<htmL>>hello<</htmL>>', 24 "<a.>HtMl text</.a>", 25 '<a.>HtMl text</.a>', 26 "<nnn>I am not a valid html text</nnn>", 27 '<nnn>I am not a valid html text</nnn>', 28 "<nnn>I am a quoted (\") string with special chars like \$,\!,\@,\%,\&</nnn>", 29 '<nnn>I am a quoted (\") string with special chars like \$,\!,\@,\%,\&</nnn>', 30); 31 32//valid html and php tags 33$quotes = "<p><a><?php<html>"; 34 35//loop through the various elements of strings array to test strip_tags() functionality 36$iterator = 1; 37foreach($strings as $string_value) 38{ 39 echo "-- Iteration $iterator --\n"; 40 var_dump( strip_tags($string_value, $quotes) ); 41 $iterator++; 42} 43 44echo "Done"; 45?> 46--EXPECT-- 47*** Testing strip_tags() : usage variations *** 48-- Iteration 1 -- 49string(32) "hello world... strip_tags_test" 50-- Iteration 2 -- 51string(34) "hello \t\tworld... strip_tags_test" 52-- Iteration 3 -- 53string(0) "" 54-- Iteration 4 -- 55string(0) "" 56-- Iteration 5 -- 57string(18) "<htmL>hello</htmL>" 58-- Iteration 6 -- 59string(18) "<htmL>hello</htmL>" 60-- Iteration 7 -- 61string(9) "HtMl text" 62-- Iteration 8 -- 63string(9) "HtMl text" 64-- Iteration 9 -- 65string(26) "I am not a valid html text" 66-- Iteration 10 -- 67string(26) "I am not a valid html text" 68-- Iteration 11 -- 69string(62) "I am a quoted (") string with special chars like $,\!,\@,\%,\&" 70-- Iteration 12 -- 71string(64) "I am a quoted (\") string with special chars like \$,\!,\@,\%,\&" 72Done 73