function numCols($result)
{
$cols = @msql_num_fields($result);
if (!$cols) {
return $this->raiseError();
}
return $cols;
}
/**
* Returns information about a table or a result set
*
* @param object|string $result DB_result object from a query or a
* string containing the name of a table.
* While this also accepts a query result
* resource identifier, this behavior is
* deprecated.
* @param int $mode a valid tableInfo mode
*
* @return array an associative array with the information requested.
* A DB_Error object on failure.
*
* @see DB_common::setOption()
*/
function tableInfo($result, $mode = null)
{
if (is_string($result)) {
/*
* Probably received a table name.
* Create a result resource identifier.
*/
$id = @msql_query("SELECT * FROM {$result}", $this->connection);
$got_string = true;
} elseif (isset($result->result)) {
/*
* Probably received a result object.
* Extract the result resource identifier.
*/
$id = $result->result;
$got_string = false;
} else {
/*
* Probably received a result resource identifier.
* Copy it.
* Deprecated. Here for compatibility only.
*/
$id = $result;
$got_string = false;
}
if (!is_resource($id)) {
return $this->raiseError(DB_ERROR_NEED_MORE_DATA);
}
if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
$case_func = 'strtolower';
} else {
$case_func = 'strval';
}
$count = @msql_num_fields($id);
$res = array();
if ($mode) {
$res['num_fields'] = $count;
}
for ($i = 0; $i < $count; $i++) {
$tmp = @msql_fetch_field($id);
$flags = '';
if ($tmp->not_null) {
$flags .= 'not_null ';
}
if ($tmp->unique) {
$flags .= 'unique_key ';
}
$flags = trim($flags);
$res[$i] = array('table' => $case_func($tmp->table), 'name' => $case_func($tmp->name), 'type' => $tmp->type, 'len' => msql_field_len($id, $i), 'flags' => $flags);
if ($mode & DB_TABLEINFO_ORDER) {
$res['order'][$res[$i]['name']] = $i;
}
if ($mode & DB_TABLEINFO_ORDERTABLE) {
$res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
}
}
// free the result only if we were called on a table
if ($got_string) {
@msql_free_result($id);
}
return $res;
}
function NumberOfColumns($result)
{
if (!isset($this->highest_fetched_row[$result])) {
$this->SetError("Number of columns", "it was specified an inexisting result set");
return -1;
}
return msql_num_fields($result);
}
