PDOStatement::fetchColumn
Returns a single column from the next row of a result set
&reftitle.description;
stringPDOStatement::fetchColumn
intcolumn_number
Returns a single column from the next row of a result set.
&reftitle.parameters;
column_number
0-indexed number of the column you wish to retrieve from the row. If
no value is supplied, PDOStatement::fetchColumn
fetches the first column.
&reftitle.returnvalues;
PDOStatement::fetchColumn returns a single column
in the next row of a result set.
There is no way to return another column from the same row if you
use PDOStatement::fetchColumn to retrieve data.
&reftitle.examples;
Return first column of the next row
prepare("SELECT name, colour FROM fruit");
$sth->execute();
/* Fetch the first column from the next row in the result set */
print("Fetch the first column from the next row in the result set:\n");
$result = $sth->fetchColumn();
print("name = $result\n");
print("Fetch the second column from the next row in the result set:\n");
$result = $sth->fetchColumn(1);
print("colour = $result\n");
?>
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&example.outputs;
&reftitle.seealso;
PDO::query
PDOStatement::fetch
PDOStatement::fetchAll
PDOStatement::prepare
PDOStatement::setFetchMode