7.5.5.16 mysql_fetch_lengths

Copyright 1997-2020 the PHP Documentation Group.

• mysql_fetch_lengths

  Get the length of each output in a result

Warning

This extension was deprecated in PHP 5.5.0, and it was removed in PHP 7.0.0. Instead, the MySQLi or PDO_MySQL extension should be used. See also MySQL: choosing an API guide and related FAQ for more information. Alternatives to this function include:

mysqli_fetch_lengths

PDOStatement::getColumnMeta

Description

array|false mysql_fetch_lengths(resource result);

Returns an array that corresponds to the lengths of each field in the last row fetched by MySQL.

mysql_fetch_lengths stores the lengths of each result column in the last row returned by mysql_fetch_row, mysql_fetch_assoc, mysql_fetch_array, and mysql_fetch_object in an array, starting at offset 0.

Parameters

result

The result resource that is being evaluated. This result comes from a call to mysql_query.

Return Values

An array of lengths on success or FALSE on failure.

Examples

Example 7.167 A mysql_fetch_lengths example

<?php
$result = mysql_query("SELECT id,email FROM people WHERE id = '42'");
if (!$result) {
    echo 'Could not run query: ' . mysql_error();
    exit;
}
$row     = mysql_fetch_assoc($result);
$lengths = mysql_fetch_lengths($result);
print_r($row);
print_r($lengths);
?>

The above example will output something similar to:

Array
(
    [id] => 42
    [email] => [e-mail]
)
Array
(
    [0] => 2
    [1] => 16
)

See Also

mysql_field_len

mysql_fetch_row

strlen