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PHP mysql_fetch_lengths() Function


PHP MySQL Reference Complete PHP MySQL Reference

Definition and Usage

The mysql_fetch_lengths() function returns the length of the contents of each field in a row.

The row is retrieved by mysql_fetch_array(), mysql_fetch_assoc(), mysql_fetch_object(), or mysql_fetch_row().

This function returns a numeric array on success, or FALSE on failure or when there are no more rows.

Syntax

mysql_fetch_lengths(data)

Parameter Description
data Required. Specifies which data pointer to use. The data pointer is the result from the mysql_query() function


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);
?>

The output of the code above could be:

Array
(
[0] => Refsnes
[1] => Kai Jim
[2] => Taugata 2
[3] => 22
)

Array
(
[0] => 7
[1] => 7
[2] => 9
[3] => 2
)


PHP MySQL Reference Complete PHP MySQL Reference

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