1--TEST-- 2Test substr_count() function (variation - 2) 3--FILE-- 4<?php 5 6echo "\n*** Testing possible variations ***\n"; 7echo "\n-- complex strings containing other than 7-bit chars --\n"; 8$str = chr(128).chr(129).chr(128).chr(256).chr(255).chr(254).chr(255); 9var_dump(substr_count($str, chr(128))); 10var_dump(substr_count($str, chr(255))); 11var_dump(substr_count($str, chr(256))); 12 13echo "\n-- heredoc string --\n"; 14$string = <<<EOD 15abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789 16abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789 17acdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789 18acdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789 19abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789 20abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789 21abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789 22abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789 23EOD; 24var_dump(substr_count($string, "abcd")); 25var_dump(substr_count($string, "1234")); 26 27echo "\n-- heredoc null string --\n"; 28$str = <<<EOD 29EOD; 30var_dump(substr_count($str, "\0")); 31var_dump(substr_count($str, "\x000")); 32var_dump(substr_count($str, "0")); 33 34echo "Done\n"; 35 36?> 37--EXPECT-- 38*** Testing possible variations *** 39 40-- complex strings containing other than 7-bit chars -- 41int(2) 42int(2) 43int(1) 44 45-- heredoc string -- 46int(14) 47int(16) 48 49-- heredoc null string -- 50int(0) 51int(0) 52int(0) 53Done 54