php_output_start_user  307 ext/zlib/zlib.c 					php_output_start_user(zoh, ZLIBG(output_compression), PHP_OUTPUT_HANDLER_STDFLAGS TSRMLS_CC);
php_output_start_user 1588 main/main.c    			php_output_start_user(oh, 0, PHP_OUTPUT_HANDLER_STDFLAGS TSRMLS_CC);
php_output_start_user 1591 main/main.c    			php_output_start_user(NULL, PG(output_buffering) > 1 ? PG(output_buffering) : 0, PHP_OUTPUT_HANDLER_STDFLAGS TSRMLS_CC);
php_output_start_user 1333 main/output.c  	if (php_output_start_user(output_handler, chunk_size, flags TSRMLS_CC) == FAILURE) {