_php_stream_cast  478 main/php_streams.h PHPAPI int _php_stream_cast(php_stream *stream, int castas, void **ret, int show_err TSRMLS_DC);
_php_stream_cast  481 main/php_streams.h #define php_stream_can_cast(stream, as)	_php_stream_cast((stream), (as), NULL, 0 TSRMLS_CC)
_php_stream_cast  482 main/php_streams.h #define php_stream_cast(stream, as, ret, show_err)	_php_stream_cast((stream), (as), (ret), (show_err) TSRMLS_CC)