(Commented with '//' means it is not implemented yet)

ogrfielddefn.cc:  PHP_ME(OGRFieldDefn, SetName,                 NULL, ZEND_ACC_PUBLIC)
ogrfielddefn.cc:  PHP_ME(OGRFieldDefn, GetNameRef,              NULL, ZEND_ACC_PUBLIC)
ogrfielddefn.cc:  PHP_ME(OGRFieldDefn, GetType,                 NULL, ZEND_ACC_PUBLIC)
ogrfielddefn.cc:  PHP_ME(OGRFieldDefn, SetType,                 NULL, ZEND_ACC_PUBLIC)
ogrfielddefn.cc:  // PHP_ME(OGRFieldDefn, GetFieldTypeName,        NULL, ZEND_ACC_PUBLIC)
ogrfielddefn.cc:  PHP_ME(OGRFieldDefn, GetJustify,              NULL, ZEND_ACC_PUBLIC)
ogrfielddefn.cc:  PHP_ME(OGRFieldDefn, SetJustify,              NULL, ZEND_ACC_PUBLIC)
ogrfielddefn.cc:  PHP_ME(OGRFieldDefn, GetWidth,                NULL, ZEND_ACC_PUBLIC)
ogrfielddefn.cc:  PHP_ME(OGRFieldDefn, SetWidth,                NULL, ZEND_ACC_PUBLIC)
ogrfielddefn.cc:  PHP_ME(OGRFieldDefn, GetPrecision,            NULL, ZEND_ACC_PUBLIC)
ogrfielddefn.cc:  PHP_ME(OGRFieldDefn, SetPrecision,            NULL, ZEND_ACC_PUBLIC)
ogrfielddefn.cc:  // PHP_ME(OGRFieldDefn, Set,                     NULL, ZEND_ACC_PUBLIC)
ogrfielddefn.cc:  // PHP_ME(OGRFieldDefn, SetDefault,              NULL, ZEND_ACC_PUBLIC)
ogrfielddefn.cc:  // PHP_ME(OGRFieldDefn, GetDefaultRef,           NULL, ZEND_ACC_PUBLIC)