mysql_list_fieldsSynopsis
Descriptionmysql_list_fields() retrieves information about the fields in the specified table and returns a mysql result handle that can be used with mysql_field_flags() , mysql_field_len() , mysql_field_name() , and mysql_field_type() . If the connection() argument is not set, the last connection opened is used by default. If no connection is open, mysql_list_fields() attempts to connect to a MySQL database by calling mysql_connect() without arguments. See also
ExampleExample 819. Display a list of all fields for a given table <?php // Included code that connects to a MySQL server and sets a default database // See the MySQL Functions chapter introduction for the source code for the file include ('mysql_connect.inc.php'); $table = 'user'; $result_handle = mysql_list_fields ($db, $table) or die ("mysql_list_fields () failed with this error message: '" . mysql_error () . "'"); $number_fields = mysql_num_fields ($result_handle); echo "Table '$table' in database '$db' contains $number_fields fields:<ol>"; for ($index=0; $index < $number_fields; ++$index) { echo '<li>', mysql_field_name ($result_handle, $index), '</li>'; } echo '</ol>'; ?>
PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing
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