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 PHP manuál : function.mysql-fetch-lengths.html

mysql_fetch_lengths
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mysql_fetch_lengths

(PHP 3, PHP 4, PHP 5)

mysql_fetch_lengths -- Get the length of each output in a result

Description

array 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 1. 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] => user@example.com
)
Array
(
    [0] => 2
    [1] => 16
)

See Also

mysql_field_len()
mysql_fetch_row()
strlen()

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