mysql_num_fields
(PHP 3, PHP 4 , PHP 5)
mysql_num_fields -- Get number of fields in result
Description
int
mysql_num_fields ( resource result)
mysql_num_fields() returns the number of
fields in the result set result.
Example 1. A mysql_num_fields() example
<?php
$result = mysql_query("SELECT id,email FROM people WHERE id = '42'");
if (!$result) {
echo 'Could not run query: ' . mysql_error();
exit;
}
/* returns 2 because id,email === two fields */
echo mysql_num_fields($result);
?>
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For downward compatibility mysql_numfields()
can also be used. This is deprecated however.
See also
mysql_select_db(),
mysql_query(),
mysql_fetch_field() and
mysql_num_rows().