pg_field_is_null
<<<		 pg_field_name pg_field_num
>>>
7.83 PostgreSQL
7 Index des fonctions
 Manuel PHP
. Introduction
. Pré-requis
. Installation
. Configuration à l'exécution
. Trucs et astuces d'utilisation
. Constantes prédefinies
. Exemples
. pg_affected_rows
. pg_cancel_query
. pg_client_encoding
. pg_close
. pg_connect
. pg_connection_busy
. pg_connection_reset
. pg_connection_status
. pg_convert
. pg_copy_from
. pg_copy_to
. pg_dbname
. pg_delete
. pg_end_copy
. pg_escape_bytea
. pg_escape_string
. pg_fetch_all
. pg_fetch_array
. pg_fetch_assoc
. pg_fetch_object
. pg_fetch_result
. pg_fetch_row
. pg_field_is_null
->pg_field_name
. pg_field_num
. pg_field_prtlen
. pg_field_size
. pg_field_type
. pg_free_result
. pg_get_notify
. pg_get_pid
. pg_get_result
. pg_host
. pg_insert
. pg_last_error
. pg_last_notice
. pg_last_oid
. pg_lo_close
. pg_lo_create
. pg_lo_export
. pg_lo_import
. pg_lo_open
. pg_lo_read_all
. pg_lo_read
. pg_lo_seek
. pg_lo_tell
. pg_lo_unlink
. pg_lo_write
. pg_meta_data
. pg_num_fields
. pg_num_rows
. pg_options
. pg_pconnect
. pg_ping
. pg_port
. pg_put_line
. pg_query
. pg_result_error
. pg_result_seek
. pg_result_status
. pg_select
. pg_send_query
. pg_set_client_encoding
. pg_trace
. pg_tty
. pg_unescape_bytea
. pg_untrace
. pg_update

7.83.31 pg_field_name()Retourne le nom d'un champ PostGreSQL

[ Exemples avec pg_field_name ]   PHP 4 >= 4.2.0

string  pg_field_name ( resource   result , int   field_number )

pg_field_name va retourne le nom du champ qui occupe la colonne numéro field_number dans le résultat result . La numérotation des champs commence à 0.

Lire des informations sur les champs PostGreSQL

<?php
    $dbconn = pg_connect("dbname=publisher") or die("Impossible de se connecter");

    $res = pg_query($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 "Champ : $fieldname\n";
        echo "Taille affichée : ".pg_field_prtlen($res, $fieldname)." characters\n";
        echo "Taille de stockage : ".pg_field_size($res, $j)." bytes\n";
        echo "Type de champ : ".pg_field_type($res, $j)." \n\n";
}
?>

Note

Auparavant, cette fonction s'appelait pg_fieldname() .

Voir aussi pg_field_num .

<< pg_field_name >>
pg_field_is_null PostgreSQL pg_field_num