numcols.inc

来自「apache windows下的一款好」· INC 代码 · 共 14 行

<?php

$dbh->setErrorHandling(PEAR_ERROR_DIE);
$sth = $dbh->query("SELECT a FROM phptest");
printf("%d\n", $sth->numCols());
$sth = $dbh->query("SELECT a,b FROM phptest");
printf("%d\n", $sth->numCols());
$sth = $dbh->query("SELECT a,b,c FROM phptest");
printf("%d\n", $sth->numCols());
$sth = $dbh->query("SELECT * FROM phptest");
printf("%d\n", $sth->numCols());

?>