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 #1 Query with aliased duplicate field names
SELECT table1.field AS foo, table2.field AS bar FROM table1,
table2
Example #2 mysql_fetch_array() with MYSQL_NUM
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 #3 mysql_fetch_array() with MYSQL_ASSOC
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 #4 mysql_fetch_array() with MYSQL_BOTH
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
Note: 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.
