$param_value = "";
echo "<script language='javascript'>alert('".$param_name."');</script>";
if(isset($_POST[$param_name])){
echo "<script language='javascript'>alert('11');</script>";
$param_value = $_POST[$param_name];
}
else if(isset($_GET[$param_name])){
echo "<script language='javascript'>alert('22');</script>";
$param_value = $_GET[$param_name];
}
else{
echo "<script language='javascript'>alert('33');</script>";
}代码如上,我在form里面加了<INPUT type=hidden value=login name=test>, 把$param_value 赋值为test, 通过以上代码能够不能取得值,程序走了else块,
请教各位,为什么?
echo "<script language='javascript'>alert('".$param_name."');</script>";
if(isset($_POST[$param_name])){
echo "<script language='javascript'>alert('11');</script>";
$param_value = $_POST[$param_name];
}
else if(isset($_GET[$param_name])){
echo "<script language='javascript'>alert('22');</script>";
$param_value = $_GET[$param_name];
}
else{
echo "<script language='javascript'>alert('33');</script>";
}代码如上,我在form里面加了<INPUT type=hidden value=login name=test>, 把$param_value 赋值为test, 通过以上代码能够不能取得值,程序走了else块,
请教各位,为什么?
$param_name = "test";
echo " <script language='javascript'>alert('".$param_name."'); </script>";
if(isset($_POST[$param_name])){
echo " <script language='javascript'>alert('11'); </script>";
$param_value = $_POST[$param_name];
}
else if(isset($_GET[$param_name])){
echo " <script language='javascript'>alert('22'); </script>";
$param_value = $_GET[$param_name];
}
else{
echo " <script language='javascript'>alert('33'); </script>";
}
<?php
if(!empty($_POST['test']) && $_SERVER['REQUEST_METHOD'] == 'POST') {
$param_name = "test";
$param_value = "";
echo " <script language='javascript'>alert('".$param_name."'); </script>";
if(isset($_POST[$param_name])){
echo " <script language='javascript'>alert('11'); </script>";
$param_value = $_POST[$param_name];
}
else if(isset($_GET[$param_name])){
echo " <script language='javascript'>alert('22'); </script>";
$param_value = $_GET[$param_name];
}
else{
echo " <script language='javascript'>alert('33'); </script>";
}
}
?>
<form method="post" >
<INPUT type=hidden value="login" name="test">
<input type="submit" value="提交">
</form>
if(isset($_POST[$param_name])){
echo " <script language='javascript'>alert('11'); </script>";
$param_value = $_POST[$param_name];
}
else if(isset($_GET[$param_name])){
echo " <script language='javascript'>alert('22'); </script>";
$param_value = $_GET[$param_name];
}
else{
echo " <script language='javascript'>alert('33'); </script>";
}
去掉,直接
echo " <script language='javascript'>alert('.$_POST[$param_name]."'); </script>";
是可以的,所以我感到很奇怪