mysqli_result::__construct

(PHP 5, PHP 7, PHP 8)

mysqli_result::__constructConstructs a mysqli_result object

Beschreibung

public mysqli_result::__construct(mysqli $mysql, int $result_mode = MYSQLI_STORE_RESULT)

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.

Parameter-Liste

mysql

Nur bei prozeduralem Aufruf: Ein von mysqli_connect() oder mysqli_init() zur√ľckgegebenes mysqli-Objekt.

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 error Commands 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.

Beispiele

Beispiel #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);

Die oben gezeigten Beispiele erzeugen eine ähnliche Ausgabe wie:

Select returned 10 rows.

Siehe auch

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