Source of: /ch06/example.6-9.php
<?php
function selectDistinct ($connection, $tableName, $attributeName,
$pulldownName, $defaultValue)
{
$defaultWithinResultSet = FALSE;
// Query to find distinct values of $attributeName in $tableName
$distinctQuery = "SELECT DISTINCT {$attributeName} FROM
{$tableName}";
// Run the distinctQuery on the databaseName
if (!($resultId = @ mysql_query ($distinctQuery, $connection)))
showerror();
// Start the select widget
print "\n<select name=\"{$pulldownName}\">";
// Retrieve each row from the query
while ($row = @ mysql_fetch_array($resultId))
{
// Get the value for the attribute to be displayed
$result = $row[$attributeName];
// Check if a defaultValue is set and, if so, is it the
// current database value?
if (isset($defaultValue) && $result == $defaultValue)
// Yes, show as selected
print "\n\t<option selected value=\"{$result}\">{$result}";
else
// No, just show as an option
print "\n\t<option value=\"{$result}\">{$result}";
print "</option>";
}
print "\n</select>";
} // end of function
?>