PHP mysql_fetch_lengths() function
Definition and Usage
The mysql_fetch_lengths() function retrieves the length of each field in a row.
The rows are returned by these functions:mysql_fetch_array(),mysql_fetch_assoc(),mysql_fetch_object() or mysql_fetch_row().
If successful, this function returns an array of numbers. If an error occurs or there are no other rows, it returns false.
syntax
mysql_fetch_lengths(data)
| Parameter | Description |
|---|---|
| data | Required. The data pointer to use. The data pointer is from mysql_query() The returned results. |
Example
<?php
$con = mysql_connect("localhost", "peter", "abc123");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
$db_selected = mysql_select_db("test_db",$con);
$sql = "SELECT * from Person WHERE Lastname='Refsnes'";
$result = mysql_query($sql,$con);
print_r(mysql_fetch_row($result));
print_r(mysql_fetch_lengths($result));
mysql_close($con);
?>
Output:
Array ( [0] => Adams [1] => John [2] => London ) Array ( [0] => 5 [1] => 4 [2] => 6 )
