--TEST-- Test preg_replace() function : error - incorrect number of parameters --FILE-- <?php /* * proto string preg_replace(mixed regex, mixed replace, mixed subject [, int limit [, count]]) * Function is implemented in ext/pcre/php_pcre.c */ echo "*** Testing preg_replace() : error conditions ***\n"; //Zero arguments echo "\n-- Testing preg_replace() function with zero arguments --\n"; var_dump(preg_replace()); //Test preg_replace() with one more than the expected number of arguments echo "\n-- Testing preg_replace() function with more than expected no. of arguments --\n"; $regex = '/\w/'; $replace = '1'; $subject = 'string_val'; $limit = 10; $extra_arg = 10; var_dump(preg_replace($regex, $replace, $subject, $limit, $count, $extra_arg)); //Testing preg_replace() with one less than the expected number of arguments echo "\n-- Testing preg_replace() function with less than expected no. of arguments --\n"; $regex = '/\w/'; $replace = '1'; var_dump(preg_replace($regex, $replace)); echo "Done" ?> --EXPECTF-- *** Testing preg_replace() : error conditions *** -- Testing preg_replace() function with zero arguments -- Warning: preg_replace() expects at least 3 parameters, 0 given in %s on line %d NULL -- Testing preg_replace() function with more than expected no. of arguments -- Warning: preg_replace() expects at most 5 parameters, 6 given in %s on line %d NULL -- Testing preg_replace() function with less than expected no. of arguments -- Warning: preg_replace() expects at least 3 parameters, 2 given in %s on line %d NULL Done