class_exists       51 Zend/zend_builtin_functions.c static ZEND_FUNCTION(class_exists);
class_exists      262 Zend/zend_builtin_functions.c 	ZEND_FE(class_exists,		arginfo_class_exists)
class_exists     1229 Zend/zend_builtin_functions.c ZEND_FUNCTION(class_exists)