`mysql_fetch_array`

mysql_fetch_array
Fetch a result row as an associative array, a numeric array, or both

Description

array mysql_fetch_array(resource result,


int result_type= =MYSQL_BOTH);

Returns an array that corresponds to the fetched row and moves the internal data pointer ahead.

Parameters

result: The result resource that is being evaluated. This result comes from a call to mysql_query.
result_type: The type of array that is to be fetched. It's a constant and can take the following values: MYSQL_ASSOC , MYSQL_NUM , and MYSQL_BOTH .

Return Values

Returns an array of strings that corresponds to the fetched row, or FALSE if there are no more rows. The type of returned array depends on how result_type is defined. By using MYSQL_BOTH (default), you'll get an array with both associative and number indices. Using MYSQL_ASSOC , you only get associative indices (as mysql_fetch_assoc works), using MYSQL_NUM , you only get number indices (as mysql_fetch_row works).

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 must use the numeric index of the column or make an alias for the column. For aliased columns, you cannot access the contents with the original column name.

Examples

Example 20.31. Query with aliased duplicate field names

SELECT table1.field AS foo, table2.field AS bar FROM table1, table2

Example 20.32. mysql_fetch_array with MYSQL_NUM

<?php mysql_connect('localhost', 'mysql_user', 'mysql_password') or
 die('Could not connect: ' . mysql_error());
mysql_select_db('mydb');
$result = mysql_query('SELECT id, name FROM mytable');
while ($row = mysql_fetch_array($result, MYSQL_NUM)) {
 printf('ID: %s Name: %s', $row[0], $row[1]); 
}
mysql_free_result($result);
?>

Example 20.33. mysql_fetch_array with MYSQL_ASSOC

<?php mysql_connect('localhost', 'mysql_user', 'mysql_password') or
 die('Could not connect: ' . mysql_error());
mysql_select_db('mydb');
$result = mysql_query('SELECT id, name FROM mytable');
while ($row = mysql_fetch_array($result, MYSQL_ASSOC)) {
 printf('ID: %s Name: %s', $row['id'], $row['name']);
}
mysql_free_result($result);
?>

Example 20.34. mysql_fetch_array with MYSQL_BOTH

<?php mysql_connect('localhost', 'mysql_user', 'mysql_password') or
 die('Could not connect: ' . mysql_error());
mysql_select_db('mydb');
$result = mysql_query('SELECT id, name FROM mytable');
while ($row = mysql_fetch_array($result, MYSQL_BOTH)) {
 printf ('ID: %s Name: %s', $row[0], $row['name']);
}
mysql_free_result($result);
?>

Notes

Performance

An important thing to note is that using mysql_fetch_array is not significantly slower than using mysql_fetch_row, while it provides a significant added value.Note

Field names returned by this function are case-sensitive.Note

This function sets NULL fields to the PHP NULL value.