(PHP 4 >= 4.2.0, PHP 5, PHP 7)
pg_field_prtlen — 锟斤拷锟截达拷印锟斤拷锟斤拷锟侥筹拷锟斤拷
$result
, int $row_number
, string $field_name
) : int
pg_field_prtlen() 锟斤拷锟斤拷 PostgreSQL result 锟叫得碉拷锟斤拷值实锟斤拷锟较达拷印锟斤拷锟斤拷锟侥筹拷锟饺ｏ拷锟街凤拷锟斤拷锟斤拷锟斤拷锟叫憋拷糯锟� 0 锟斤拷始锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟� -1锟斤拷
锟斤拷锟接参硷拷 pg_field_name() 页锟斤拷
Note:
锟斤拷锟斤拷锟斤拷锟斤拷前锟斤拷锟斤拷锟斤拷为 pg_field_prtlen()锟斤拷
锟轿硷拷 pg_field_size()锟斤拷