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(PHP 4, PHP 5)
mysql_fetch_lengths — Get the length of each output in a result
Questa enstensione deprecata da PHP 5.5.0, e sarĂ rimossa in futuro. Al suo posto, usare l'estensione MySQLi o PDO_MySQL. Vedere anche la guida MySQL: scelta dell'API e le FAQ relative per ulteriori informazioni. Le alternative a questa funzione includono:
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.
result
The risultato resource che che viene calcolato. Questo risultato deriva dal una chiamata a mysql_query().
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);
?>
Il precedente esempio visualizzerĂ qualcosa simile a:
Array ( [id] => 42 [email] => user@example.com ) Array ( [0] => 2 [1] => 16 )