MySQL and PHP
Copyright 1997-2021 the PHP Documentation Group.
mysqli_result::fetch_assoc
mysqli_fetch_assoc
Fetch a result row as an associative array
Object oriented style
public array mysqli_result::fetch_assoc();
Procedural style
array mysqli_fetch_assoc(mysqli_result result);
Returns an associative array that corresponds to the fetched row
or null
if there are no more rows.
Field names returned by this function are case-sensitive.
This function sets NULL fields to
the PHP null
value.
result
Procedural style only: A result set identifier returned
by
mysqli_query
,
mysqli_store_result
or
mysqli_use_result
.
Returns an associative array of strings 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
resultset.
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.
Example 3.111 Object oriented style
<?php $mysqli = new mysqli("localhost", "my_user", "my_password", "world"); /* check connection */ if ($mysqli->connect_errno) { printf("Connect failed: %s\n", $mysqli->connect_error); exit(); } $query = "SELECT Name, CountryCode FROM City ORDER by ID DESC LIMIT 50,5"; if ($result = $mysqli->query($query)) { /* fetch associative array */ while ($row = $result->fetch_assoc()) { printf ("%s (%s)\n", $row["Name"], $row["CountryCode"]); } /* free result set */ $result->free(); } /* close connection */ $mysqli->close(); ?>
Example 3.112 Procedural style
<?php $link = mysqli_connect("localhost", "my_user", "my_password", "world"); /* check connection */ if (mysqli_connect_errno()) { printf("Connect failed: %s\n", mysqli_connect_error()); exit(); } $query = "SELECT Name, CountryCode FROM City ORDER by ID DESC LIMIT 50,5"; if ($result = mysqli_query($link, $query)) { /* fetch associative array */ while ($row = mysqli_fetch_assoc($result)) { printf ("%s (%s)\n", $row["Name"], $row["CountryCode"]); } /* free result set */ mysqli_free_result($result); } /* close connection */ mysqli_close($link); ?>
The above examples will output:
Pueblo (USA) Arvada (USA) Cape Coral (USA) Green Bay (USA) Santa Clara (USA)
Example 3.113 A mysqli_result
example comparing
iterator
usage
<?php $c = mysqli_connect('127.0.0.1','user', 'pass'); // Using iterators (support was added with PHP 5.4) foreach ( $c->query('SELECT user,host FROM mysql.user') as $row ) { printf("'%s'@'%s'\n", $row['user'], $row['host']); } echo "\n==================\n"; // Not using iterators $result = $c->query('SELECT user,host FROM mysql.user'); while ($row = $result->fetch_assoc()) { printf("'%s'@'%s'\n", $row['user'], $row['host']); } ?>
The above example will output something similar to:
'root'@'192.168.1.1' 'root'@'127.0.0.1' 'dude'@'localhost' 'lebowski'@'localhost' ================== 'root'@'192.168.1.1' 'root'@'127.0.0.1' 'dude'@'localhost' 'lebowski'@'localhost'
mysqli_fetch_array
|
mysqli_fetch_row
|
mysqli_fetch_object
|
mysqli_query
|
mysqli_data_seek
|