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Connectors and APIs Manual  /  ...  /  mysqli_stmt::bind_result, mysqli_stmt_bind_result

7.3.9.5 mysqli_stmt::bind_result, mysqli_stmt_bind_result

Copyright 1997-2022 the PHP Documentation Group.

  • mysqli_stmt::bind_result

    mysqli_stmt_bind_result

    Binds variables to a prepared statement for result storage

Description

Object-oriented style

public bool mysqli_stmt::bind_result(mixed var,
                                     mixed vars);

Procedural style

bool mysqli_stmt_bind_result(mysqli_stmt statement,
                             mixed var,
                             mixed vars);

Binds columns in the result set to variables.

When mysqli_stmt_fetch is called to fetch data, the MySQL client/server protocol places the data for the bound columns into the specified variables var/vars.

A column can be bound or rebound at any time, even after a result set has been partially retrieved. The new binding takes effect the next time mysqli_stmt_fetch is called.

Note

All columns must be bound after mysqli_stmt_execute and prior to calling mysqli_stmt_fetch.

Note

Depending on column types bound variables can silently change to the corresponding PHP type.

Tip

This functions is useful for simple results. To retrieve iterable result set, or fetch each row as an array or object, use mysqli_stmt_get_result.

Parameters

statement

Procedural style only: A mysqli_stmt object returned by mysqli_stmt_init.

var

The first variable to be bound.

vars

Further variables to be bound.

Return Values

Returns true on success or false on failure.

Examples

Example 7.80 Object-oriented style

<?php
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
/* prepare statement */
$stmt = $mysqli->prepare("SELECT Code, Name FROM Country ORDER BY Name LIMIT 5");
$stmt->execute();
/* bind variables to prepared statement */
$stmt->bind_result($col1, $col2);
/* fetch values */
while ($stmt->fetch()) {
    printf("%s %s\n", $col1, $col2);
}

Example 7.81 Procedural style

<?php
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* prepare statement */
$stmt = mysqli_prepare($link, "SELECT Code, Name FROM Country ORDER BY Name LIMIT 5");
mysqli_stmt_execute($stmt);
/* bind variables to prepared statement */
mysqli_stmt_bind_result($stmt, $col1, $col2);
/* fetch values */
while (mysqli_stmt_fetch($stmt)) {
    printf("%s %s\n", $col1, $col2);
}

The above examples will output something similar to:

AFG Afghanistan
ALB Albania
DZA Algeria
ASM American Samoa
AND Andorra


See Also

mysqli_stmt_get_result
mysqli_stmt_bind_param
mysqli_stmt_execute
mysqli_stmt_fetch
mysqli_prepare
mysqli_stmt_prepare