mysqli_result::__construct
(PHP 5, PHP 7, PHP 8)
mysqli_result::__construct — Constructs a mysqli_result object
Description
This method constructs a new mysqli_result object.
It can be used to create the mysqli_result object after calling the mysqli_real_query() or mysqli_multi_query() function. Constructing the object manually is equivalent to calling the mysqli_store_result() or mysqli_use_result() function.
Liste de paramètres
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mysql -
Seulement en style procédural : Un objet mysqli retourné par la fonction mysqli_connect() ou mysqli_init().
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result_mode -
The result mode can be one of 2 constants indicating how the result will be returned from the MySQL server.
MYSQLI_STORE_RESULT(default) - creates a mysqli_result object with buffered result set.MYSQLI_USE_RESULT- creates a mysqli_result object with unbuffered result set. As long as there are pending records waiting to be fetched, the connection line will be busy and all subsequent calls will return errorCommands out of sync. To avoid the error all records must be fetched from the server or the result set must be discarded by calling mysqli_free_result(). The connection must remain open for the rows to be fetched.
Erreurs / Exceptions
Si le rapport d'erreurs mysqli est activé (MYSQLI_REPORT_ERROR) et que l'opération demandée échoue,
un avertissement est généré. Si, en plus, le mode est défini sur MYSQLI_REPORT_STRICT,
une mysqli_sql_exception est lancée à la place.
Exemples
Exemple #1 Creation of a mysqli_result object
<?php
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
/* Select queries return a result set */
$mysqli->real_query("SELECT Name FROM City LIMIT 10");
$result = new mysqli_result($mysqli);
printf("Select returned %d rows.\n", $result->num_rows);Les exemples ci-dessus vont afficher quelque chose de similaire à :
Select returned 10 rows.
Voir aussi
- mysqli_multi_query() - Exécute une ou plusieurs requêtes sur la base de donnée
- mysqli_real_query() - Exécute une requête SQL
- mysqli_store_result() - Transfère un jeu de résultats à partir de la dernière requête
- mysqli_use_result() - Initialise la récupération d'un jeu de résultats
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