#include <zend_API.h>
void zend_wrong_param_count ( magic TSRMLS_D )zend_wrong_param_count() produces a standard warning message for functions or class methods that have been called with a wrong number of parameters. The function automaticly puts the right function name and class name (if needed) into the error message.
Usually the ZEND_WRONG_PARAM_COUNT() and ZEND_WRONG_PARAM_COUNT_WITH_RETVAL() macros are used to invoke this function instead of calling it immediately as this saves typing the TSRMLS_C argument.