mysql_fetch_lengths
PHP function
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(PHP 4, PHP 5)
Get the length of each output in a result
Note mysqli_fetch_lengthsPDOStatement::getColumnMeta
Description
mysql_fetch_lengths(resource $result): array|false
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
Return Values
An array of lengths on successFalseforfailure.
Examples
A mysql_fetch_lengths() example
php
<?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:
output
Array
(
[id] => 42
[email] => user@example.com
)
Array
(
[0] => 2
[1] => 16
)