pg_field_name
(PHP 4 >= 4.2.0, PHP 5)
pg_field_name -- Retorna o nome de um campo
Descrição
string
pg_field_name ( resource 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"; } ?>
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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 |
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Nota:
Esta função era chamada pg_fieldname().
Veja também pg_field_num().