isset_variable    253 Zend/zend_language_parser.y %type <ast> assignment_list isset_variable type return_type
isset_variable   1261 Zend/zend_language_parser.y 		isset_variable { $$ = $1; }
isset_variable   1262 Zend/zend_language_parser.y 	|	isset_variables ',' isset_variable
isset_variable   1266 Zend/zend_language_parser.y isset_variable: