(PHP 4 >= 4.2.0, PHP 5, PHP 7)
pg_field_name — Retorna o nome de um campo
$result
, int $field_number
)
pg_field_name() retorna o nome do campo ocupando o
campo de número igual a field_number no recurso (resource) de
resultado result. A numeração de campo
inicia-se em 0.
Exemplo #1 Getting informations about fields
<?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";
}
?>
The above example would produce the following output:
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
Nota:
Esta função era chamada pg_fieldname().
Veja também pg_field_num().