我想使用foreach循环显示会话中存储的所有数据。我不能显示它。有人能告诉我如何显示存储值吗。我需要显示每个添加产品的产品ID和信息。这是代码`
<?php
session_start();
/*
TEMPLATE NAME: Cart Page
*/
？>
<?php
$git_product_id = $_POST['git_product_id'];
$git_required = $_POST['git_required'];
$git_action = $_POST['git_action'];
if ( isset($git_product_id)){
switch($git_action){
case "add" :
// adding product
// checking first if the product is already added
if (isset($_SESSION['cart'][$git_product_id])){
echo "You have already added this product";
} else {
// I AM NOT SURE IF THIS CODING IS OKAY. PLEASE CHECK THIS
if (!isset($_SESSION['cart'])) {
$_SESSION['cart'] = array();
}
$_SESSION['cart'][$git_product_id] = array('product_id' => $git_product_id, 'info' => $git_required);
}
break;
case "remove":
// removing product
unset($_SESSION['cart'][$git_product_id]);
break;
case "empty" :
// empty cart
unset($_SESSION['cart']);
break;
}
}
?>
<?php
if ($_SESSION['cart'] != ""):
foreach($_SESSION['cart'] as $product => $key ) : ?>
<tr>
<td>
<?php // I WANT TO SHOW HERE EACH PRODUCT ID and RESPECTIVE REQUIRED INFO ?>
<?php // BUT I DON'T KNOW HOW TO DO IT ?>
</td>
<td>
<form action="" method="post">
<input type="hidden" name="git_product_id" value="<?php echo $product; ?>" />
<input type="hidden" name="git_required" value="<?php echo $qty; ?>" />
<input type="hidden" name="git_action" value="remove" />
<input type="submit" value="Remove" />
</form>
</td>
<?php endforeach; ?>
<?php endif; ?>
<form action="" method="POST">
<input type="hidden" name="git_product_id" value="<?php echo $product; ?>" />
<input type="hidden" name="git_required" value="<?php echo $qty; ?>" />
<input type="hidden" name="git_action" value="empty" />
<input type="submit" value="empty" />
</form>
这段代码对我来说总是有效的，它并不是你想要的。。。但它包含一个for循环
在以下示例中：
-$sys[session_allowed]是一个白名单数组，如果没有，可以跳过/删除它
-会话数据可用于$sess[foo1]、$sses[foo2]等
// create session
session_cache_limiter('private, must-revalidate, post-check=0, pre-check=0');
session_start();
// load values, and encrypt
$enc_data = explode(";", session_encode());
$sess_name = array(); $sess_data = array();
for ($i=0;$i<count($enc_data)-1;$i++)
{
$sess_get = explode("|", $enc_data[$i]);
if (substr($sess_get[1], 0, 2)=="s:")
{
$tmp = str_replace("'"", "", strstr($sess_get[1], "'""));
if (strlen($tmp)!=0 && in_array($sess_get[0], $sys[session_allowed]))
{ $sess_data[$i] = $tmp; $sess_name[$i] = $sess_get[0]; }
}
else
{
$tmp = substr($sess_get[1], 2);
if (strlen($tmp)!=0 && in_array($sess_get[0], $sys[session_allowed]))
{ $sess_data[$i] = $tmp; $sess_name[$i] = $sess_get[0]; }
}
}
if (count($sess_name)>=1) { $sess = array_combine($sess_name, $sess_data); }
else { $sess = array(); }
// now you can access SESSION data by $sess[blabla1], $sess[blabla2]
// to add to session, use function (max 3 add actions):
function session_add($act1="", $act2="", $act3="")
{
global $sess, $_SESSION;
if (strlen($act1)!=0) { $loc = strpos($act1, "="); $act_a = substr($act1, 0, $loc); $act_b = substr($act1, $loc+1); $_SESSION[$act_a] = $act_b; $sess[$act_a] = $act_b; }
if (strlen($act2)!=0) { $loc = strpos($act2, "="); $act_a = substr($act2, 0, $loc); $act_b = substr($act2, $loc+1); $_SESSION[$act_a] = $act_b; $sess[$act_a] = $act_b; }
if (strlen($act3)!=0) { $loc = strpos($act3, "="); $act_a = substr($act3, 0, $loc); $act_b = substr($act3, $loc+1); $_SESSION[$act_a] = $act_b; $sess[$act_a] = $act_b; }
}
// to remove from session, use function (max 3 delete actions):
function session_rem($act1="", $act2="", $act3="")
{
global $sess, $_SESSION;
if (strlen($act1)!=0) { $_SESSION[$act1] = ""; unset($sess[$act1]); }
if (strlen($act2)!=0) { $_SESSION[$act2] = ""; unset($sess[$act2]); }
if (strlen($act3)!=0) { $_SESSION[$act3] = ""; unset($sess[$act3]); }
}