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8.81 Extension MySQL améliorée
8 Référence des fonctions
 Manuel PHP

Introduction
Pré-requis
Installation
Configuration à l'exécution
Classes pré-définies
Constantes pré-définies
mysqli_affected_rows
mysqli_autocommit
mysqli_bind_param
mysqli_bind_result
mysqli_change_user
mysqli_character_set_name
mysqli_client_encoding
mysqli_close
mysqli_commit
mysqli_connect_errno
mysqli_connect_error
mysqli_connect
mysqli_data_seek
mysqli_debug
mysqli_disable_reads_from_master
mysqli_disable_rpl_parse
mysqli_dump_debug_info
mysqli_embedded_connect
mysqli_enable_reads_from_master
mysqli_enable_rpl_parse
mysqli_errno
mysqli_error
mysqli_escape_string
mysqli_execute
mysqli_fetch_array
mysqli_fetch_assoc
mysqli_fetch_field_direct
mysqli_fetch_field
mysqli_fetch_fields
mysqli_fetch_lengths
mysqli_fetch_object
mysqli_fetch_row
mysqli_fetch
mysqli_field_count
->mysqli_field_seek
mysqli_field_tell
mysqli_free_result
mysqli_get_client_info
mysqli_get_client_version
mysqli_get_host_info
mysqli_get_metadata
mysqli_get_proto_info
mysqli_get_server_info
mysqli_get_server_version
mysqli_info
mysqli_init
mysqli_insert_id
mysqli_kill
mysqli_master_query
mysqli_more_results
mysqli_multi_query
mysqli_next_result
mysqli_num_fields
mysqli_num_rows
mysqli_options
mysqli_param_count
mysqli_ping
mysqli_prepare
mysqli_query
mysqli_real_connect
mysqli_real_escape_string
mysqli_real_query
mysqli_report
mysqli_rollback
mysqli_rpl_parse_enabled
mysqli_rpl_probe
mysqli_rpl_query_type
mysqli_select_db
mysqli_send_long_data
mysqli_send_query
mysqli_server_end
mysqli_server_init
mysqli_set_charset
mysqli_set_opt
mysqli_sqlstate
mysqli_ssl_set
mysqli_stat
mysqli_stmt_affected_rows
mysqli_stmt_bind_param
mysqli_stmt_bind_result
mysqli_stmt_close
mysqli_stmt_data_seek
mysqli_stmt_errno
mysqli_stmt_error
mysqli_stmt_execute
mysqli_stmt_fetch
mysqli_stmt_free_result
mysqli_stmt_init
mysqli_stmt_num_rows
mysqli_stmt_param_count
mysqli_stmt_prepare
mysqli_stmt_reset
mysqli_stmt_result_metadata
mysqli_stmt_send_long_data
mysqli_stmt_sqlstate
mysqli_stmt_store_result
mysqli_store_result
mysqli_thread_id
mysqli_thread_safe
mysqli_use_result
mysqli_warning_count

8.81.41 mysqli_field_seek()result->field_seek() Déplace le pointeur de résultat sur le champ spécifié

[ Exemples avec mysqli_field_seek ]   PHP 5

Style procédural

bool  mysqli_field_seek ( mysqli_result   result , int   fieldnr )

Style orienté objet (méthode)

mysqli_result bool  field_seek ( int   fieldnr )

mysqli_field_seek place le curseur sur le champ spécifié par le numéro fieldnr . Le prochain appel à la fonction mysqli_fetch_field retournera la définition du champ de la colonne associée à cette position.

Note

Pour se déplacer au début d'une ligne, passez une position ayant pour valeur zéro.

mysqli_field_seek retourne la valeur précédente du curseur.

Style orienté objet

<?php
$mysqli
= new mysqli("localhost", "my_user", "my_password", "world");

/* Vérification de la connexion */
if (mysqli_connect_errno()) {
    
printf("Echec de la connexion : %s\n", mysqli_connect_error());
    exit();
}

$query = "SELECT Name, SurfaceArea from Country ORDER BY Code LIMIT 5";

if (
$result = $mysqli->query($query)) {

    
/* Récupération des informations du champ pour la 2ème colonne */
    
$result->field_seek(1);
    
$finfo = $result->fetch_field();

    
printf("Nom :     %s\n", $finfo->name);
    
printf("Table :    %s\n", $finfo->table);
    
printf("Longueur Max. : %d\n", $finfo->max_length);
    
printf("Flags :    %d\n", $finfo->flags);
    
printf("Type :     %d\n\n", $finfo->type);

    
$result->close();
}

/* Fermeture de la connexion */
$mysqli->close();
?>
Style procédural

<?php
$link
= mysqli_connect("localhost", "my_user", "my_password", "world");

/* Vérification de la connexion */
if (mysqli_connect_errno()) {
    
printf("Echec de la connexion : %s\n", mysqli_connect_error());
    exit();
}

$query = "SELECT Name, SurfaceArea from Country ORDER BY Code LIMIT 5";

if (
$result = mysqli_query($link, $query)) {

    
/* Récupération des informations du champ pour la 2ème colonne */
    
mysqli_field_seek($result, 1);
    
$finfo = mysqli_fetch_field($result);

    
printf("Nom :     %s\n", $finfo->name);
    
printf("Table :    %s\n", $finfo->table);
    
printf("Longueur Max. : %d\n", $finfo->max_length);
    
printf("Flags :    %d\n", $finfo->flags);
    
printf("Type :     %d\n\n", $finfo->type);

    
mysqli_free_result($result);
}

/* Fermeture de la connexion */
mysqli_close($link);
?>

L'exemple ci-dessus va afficher :


Nom : SurfaceArea
Table : Country
Longueur Max. : 10
Flags : 32769
Type : 4

mysqli_fetch_field .

<< mysqli_field_seek >>
mysqli_field_count Extension MySQL améliorée mysqli_field_tell





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