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()