Transfers a result set from a prepared statement

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PHP Manual

# mysqli_stmt::store_result

# mysqli_stmt_store_result

(PHP 5)

mysqli_stmt::store_result -- mysqli_stmt_store_result — Transfers a result set from a prepared statement

### Description

Object oriented style

bool mysqli_stmt::store_result ( void )

Procedural style

bool mysqli_stmt_store_result ( mysqli_stmt `$stmt` )

You must call mysqli_stmt_store_result() for every query that successfully produces a result set (SELECT, SHOW, DESCRIBE, EXPLAIN), and only if you want to buffer the complete result set by the client, so that the subsequent mysqli_stmt_fetch() call returns buffered data.

> Note:

> It is unnecessary to call mysqli_stmt_store_result() for other queries, but if you do, it will not harm or cause any notable performance in all cases. You can detect whether the query produced a result set by checking if mysqli_stmt_result_metadata() returns NULL.

### Parameters

`stmt`

  Procedural style only: A statement identifier returned by mysqli_stmt_init().

### Return Values

Returns `TRUE` on success or `FALSE` on failure.

### Examples

Example #1 Object oriented style

`<?php
/* Open a connection */
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
$query = "SELECT Name, CountryCode FROM City ORDER BY Name LIMIT 20";
if ($stmt = $mysqli->prepare($query)) {
/* execute query */
$stmt->execute();
/* store result */
$stmt->store_result();
printf("Number of rows: %d.\n", $stmt->num_rows);
/* free result */
$stmt->free_result();
/* close statement */
$stmt->close();
}
/* close connection */
$mysqli->close();
?>`

Example #2 Procedural style

`<?php
/* Open a connection */
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
$query = "SELECT Name, CountryCode FROM City ORDER BY Name LIMIT 20";
if ($stmt = mysqli_prepare($link, $query)) {
/* execute query */
mysqli_stmt_execute($stmt);
/* store result */
mysqli_stmt_store_result($stmt);
printf("Number of rows: %d.\n", mysqli_stmt_num_rows($stmt));
/* free result */
mysqli_stmt_free_result($stmt);
/* close statement */
mysqli_stmt_close($stmt);
}
/* close connection */
mysqli_close($link);
?>`

The above examples will output:

    Number of rows: 20.

### See Also

- mysqli_prepare() - Prepare an SQL statement for execution
- mysqli_stmt_result_metadata() - Returns result set metadata from a prepared statement
- mysqli_stmt_fetch() - Fetch results from a prepared statement into the bound variables

mysqli_stmt::$sqlstate
mysqli_result
mysqli_stmt
PHP Manual