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