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MySQL PHP API  /  ...  /  mysqli_result::fetch_assoc, mysqli_fetch_assoc

3.10.6 mysqli_result::fetch_assoc, mysqli_fetch_assoc

Copyright 1997-2022 the PHP Documentation Group.

  • mysqli_result::fetch_assoc

    mysqli_fetch_assoc

    Fetch the next row of a result set as an associative array

Description

Object-oriented style

public array|null|false mysqli_result::fetch_assoc();

Procedural style

array|null|false mysqli_fetch_assoc(mysqli_result result);

Fetches one row of data from the result set and returns it as an associative array. Each subsequent call to this function will return the next row within the result set, or null if there are no more rows.

If two or more columns of the result have the same name, the last column will take precedence and overwrite any previous data. To access multiple columns with the same name, mysqli_fetch_row may be used to fetch the numerically indexed array, or aliases may be used in the SQL query select list to give columns different names.

Note

Field names returned by this function are case-sensitive.

Note

This function sets NULL fields to the PHP null value.

Parameters

result

Procedural style only: A mysqli_result object returned by mysqli_query, mysqli_store_result, mysqli_use_result or mysqli_stmt_get_result.

Return Values

Returns an associative array representing the fetched row, where each key in the array represents the name of one of the result set's columns, null if there are no more rows in the result set, or false on failure.

Examples

Example 3.110 mysqli_result::fetch_assoc example

Object-oriented style

<?php

mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");

$query = "SELECT Name, CountryCode FROM City ORDER BY ID DESC";

$result = $mysqli->query($query);

/* fetch associative array */
while ($row = $result->fetch_assoc()) {
    printf("%s (%s)\n", $row["Name"], $row["CountryCode"]);
}

Procedural style

<?php

mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$mysqli = mysqli_connect("localhost", "my_user", "my_password", "world");

$query = "SELECT Name, CountryCode FROM City ORDER BY ID DESC";

$result = mysqli_query($mysqli, $query);

/* fetch associative array */
while ($row = mysqli_fetch_assoc($result)) {
    printf("%s (%s)\n", $row["Name"], $row["CountryCode"]);
}

The above examples will output something similar to:

Pueblo (USA)
Arvada (USA)
Cape Coral (USA)
Green Bay (USA)
Santa Clara (USA)


Example 3.111 Comparison of mysqli_result iterator and mysqli_result::fetch_assoc usage

mysqli_result can be iterated using foreach. The result set will always be iterated from the first row, regardless of the current position.

<?php

mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");

$query = 'SELECT Name, CountryCode FROM City ORDER BY ID DESC';

// Using iterators
$result = $mysqli->query($query);
foreach ($result as $row) {
    printf("%s (%s)\n", $row["Name"], $row["CountryCode"]);
}

echo "\n==================\n";

// Not using iterators
$result = $mysqli->query($query);
while ($row = $result->fetch_assoc()) {
    printf("%s (%s)\n", $row["Name"], $row["CountryCode"]);
}

The above example will output something similar to:

Pueblo (USA)
Arvada (USA)
Cape Coral (USA)
Green Bay (USA)
Santa Clara (USA)

==================
Pueblo (USA)
Arvada (USA)
Cape Coral (USA)
Green Bay (USA)
Santa Clara (USA)



See Also

mysqli_fetch_array
mysqli_fetch_column
mysqli_fetch_row
mysqli_fetch_object
mysqli_query
mysqli_data_seek