write_function    660 Zend/zend.c    	zend_write = (zend_write_func_t) utility_functions->write_function;
write_function    198 Zend/zend.h    	size_t (*write_function)(const char *str, size_t str_length);
write_function   2065 main/main.c    	zuf.write_function = php_output_wrapper;