export_function  1164 ext/libxml/libxml.c zval *php_libxml_register_export(zend_class_entry *ce, php_libxml_export_node export_function)
export_function  1170 ext/libxml/libxml.c 	export_hnd.export_func = export_function;
export_function   101 ext/libxml/php_libxml.h PHP_LIBXML_API zval *php_libxml_register_export(zend_class_entry *ce, php_libxml_export_node export_function);