if(...){
$action = "user.php";
}else {
$action = "error.php";
}<form action="<? echo $action?>" method="post">
<input name="normal" type="submit" id="normal" value="登陆">
</form>
$action = "user.php";
}else {
$action = "error.php";
}<form action="<? echo $action?>" method="post">
<input name="normal" type="submit" id="normal" value="登陆">
</form>
<?
if(...){
$action = "user.php";
}else {
$action = "error.php";
}
?><form name="login" action="<? echo $action?>" method="post">
<input name="normal" type="submit" id="normal" value="登陆">
</form>或者用js来控制
<script>
if(..){
login.action="user.php";
}else {
login.action="error.php";
}
</script>
<input type=button name=lgoin value="login" onclick="submit()"></form>
<script>
function submit(){
if(..){
login.action="user.php";
}else {
login.action="error.php";
}
}
</script>