--TEST-- Test strrev() function : basic functionality --FILE-- <?php /* Prototype : string strrev(string $str); * Description: Reverse a string * Source code: ext/standard/string.c */ echo "*** Testing strrev() : basic functionality ***\n"; $heredoc = <<<EOD Hello, world EOD; //regular string var_dump( strrev("Hello, World") ); var_dump( strrev('Hello, World') ); //single character var_dump( strrev("H") ); var_dump( strrev('H') ); //string containing simalr chars var_dump( strrev("HHHHHH") ); var_dump( strrev("HhhhhH") ); //string containing escape char var_dump( strrev("Hello, World\n") ); var_dump( strrev('Hello, World\n') ); //heredoc string var_dump( strrev($heredoc) ); echo "*** Done ***"; ?> --EXPECTF-- *** Testing strrev() : basic functionality *** string(12) "dlroW ,olleH" string(12) "dlroW ,olleH" string(1) "H" string(1) "H" string(6) "HHHHHH" string(6) "HhhhhH" string(13) " dlroW ,olleH" string(14) "n\dlroW ,olleH" string(12) "dlrow ,olleH" *** Done ***