(PHP 4 >= 4.2.0, PHP 5, PHP 7)
pg_field_name — 锟斤拷锟斤拷锟街段碉拷锟斤拷锟斤拷
$result
, int $field_number
) : string
pg_field_name() 锟斤拷锟截革拷锟斤拷 PostgreSQL result 锟斤拷源锟叫碉拷 field_number 锟斤拷锟斤拷锟斤拷锟斤拷侄锟斤拷锟斤拷锟斤拷侄伪锟脚达拷 0 锟斤拷始锟斤拷
Example #1 锟斤拷取锟街讹拷锟斤拷息
<?php
$dbconn = pg_connect("dbname=publisher") or die("Could not connect");
$res = pg_query($dbconn, "select * from authors where author = 'Orwell'");
$i = pg_num_fields($res);
for ($j = 0; $j < $i; $j++) {
echo "column $j\n";
$fieldname = pg_field_name($res, $j);
echo "fieldname: $fieldname\n";
echo "printed length: ".pg_field_prtlen($res, $fieldname)." characters\n";
echo "storage length: ".pg_field_size($res, $j)." bytes\n";
echo "field type: ".pg_field_type($res, $j)." \n\n";
}
?>
锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷拢锟�
column 0 fieldname: author printed length: 6 characters storage length: -1 bytes field type: varchar column 1 fieldname: year printed length: 4 characters storage length: 2 bytes field type: int2 column 2 fieldname: title printed length: 24 characters storage length: -1 bytes field type: varchar
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_fieldname()锟斤拷
锟轿硷拷 pg_field_num()锟斤拷