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pg_fetch_row
<<<
pg_field_is_null pg_field_name
>>>

7.82 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_untrace
pg_update

7.82.30 pg_field_is_null()Teste si un champ PostGreSQL est à NULL

[ Exemples avec pg_field_is_null ]   PHP 4 >= 4.2.0

int  pg_field_is_null ( resource   result , int   row , mixed   field )

pg_field_is_null teste si un champ est à NULL . pg_field_is_null retourne 0 si le champ n'est pas NULL . pg_field_is_null retourne 1 si le champ est à NULL . Le champ peut être identifié avec son nom ou son index numérique (commençant à 0).

Exemple avec pg_field_is_null

<?php
    $dbconn
= pg_connect("dbname=publisher") or die ("Impossible de se connecter");
    
$res = pg_query($dbconn, "select * from authors where author = 'Orwell'");
    if (
$res) {
        if (
pg_field_is_null($res, 0, "annee") == 1) {
            echo
"La valeur du champs \"annee\" est null.\n";
        }
        if (
pg_field_is_null($res, 0, "year") == 0) {
            echo
"La valeur du champs \"annee\" n'est pas null.\n";
      }
   }
?>

Note

Auparavant, cette fonction s'appelait pg_fieldisnull() .

<< pg_field_is_null >>
pg_fetch_row PostgreSQL pg_field_name
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