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 )
Retrieves the number of fields from a query.
Return Values
Returns the number of fields in the result set resource on
success, or FALSE on failure.
Examples
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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Notes
Note:
For downward compatibility, the following
deprecated alias may be used:
mysql_numfields()