--TEST-- Test strncmp() function : basic functionality --FILE-- <?php /* Prototype : int strncmp ( string $str1, string $str2, int $len ); * Description: Binary safe case-sensitive string comparison of the first n characters * Source code: Zend/zend_builtin_functions.c */ echo "*** Testing strncmp() function: basic functionality ***\n"; echo "-- Testing strncmp() with single quoted string --\n"; var_dump( strncmp('Hello', 'Hello', 5) ); //expected: int(0) var_dump( strncmp('Hello', 'Hi', 5) ); //expected: value < 0 var_dump( strncmp('Hi', 'Hello', 5) ); //expected: value > 0 echo "-- Testing strncmp() with double quoted string --\n"; var_dump( strncmp("Hello", "Hello", 5) ); //expected: int(0) var_dump( strncmp("Hello", "Hi", 5) ); //expected: value < 0 var_dump( strncmp("Hi", "Hello", 5) ); //expected: value > 0 echo "-- Testing strncmp() with here-doc string --\n"; $str = <<<HEREDOC Hello HEREDOC; var_dump( strncmp($str, "Hello", 5) ); //expected: int(0) var_dump( strncmp($str, "Hi", 5) ); //expected: value < 0 var_dump( strncmp("Hi", $str, 5) ); //expected: value > 0 echo "*** Done ***"; ?> --EXPECTREGEX-- \*\*\* Testing strncmp\(\) function: basic functionality \*\*\* -- Testing strncmp\(\) with single quoted string -- int\(0\) int\(-[1-9][0-9]*\) int\([1-9][0-9]*\) -- Testing strncmp\(\) with double quoted string -- int\(0\) int\(-[1-9][0-9]*\) int\([1-9][0-9]*\) -- Testing strncmp\(\) with here-doc string -- int\(0\) int\(-[1-9][0-9]*\) int\([1-9][0-9]*\) \*\*\* Done \*\*\*