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

3.10.5 mysqli_result::fetch_assoc, mysqli_fetch_assoc

Copyright 1997-2021 the PHP Documentation Group.

  • mysqli_result::fetch_assoc

    mysqli_fetch_assoc

    Fetch a result row 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);

Returns an associative array that corresponds to the fetched row or null if there are no more rows.

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 result set identifier returned by mysqli_query, mysqli_store_result or mysqli_use_result.

Return Values

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

If two or more columns of the result have the same field names, the last column will take precedence. To access the other column(s) of the same name, you either need to access the result with numeric indices by using mysqli_fetch_row or add alias names.

Examples

Example 3.107 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 3.108 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_row
mysqli_fetch_object
mysqli_query
mysqli_data_seek