SAPI_INPUT_FILTER_FUNC  302 main/SAPI.h    #define SAPI_INPUT_FILTER_FUNC(input_filter) unsigned int input_filter(int arg, char *var, char **val, size_t val_len, size_t *new_val_len)
SAPI_INPUT_FILTER_FUNC  354 main/php_variables.c SAPI_API SAPI_INPUT_FILTER_FUNC(php_default_input_filter)