foreach（$ _ SESSION AS $ value）{...} - ＆gt;获取会话的数组键

Question

我填写了这样一个会话：

$_SESSION[$id]=$value;

我正在用这个读出数组：

foreach($_SESSION AS $value){...}

但是我怎样才能读出会话的$id呢？数组键？

谢谢！

Answer 1

foreach($_SESSION as $key => $value){
}

http://br2.php.net/manual/en/control-structures.foreach.php

Answer 2

您需要以下内容：

foreach($_SESSION AS $key => $value) {
  echo "$key -> $value";
}

Answer 3

foreach ($_SESSION as $key => $value)

Answer 4

foreach ($_SESSION as $key => $value) {
  print $key . '<br>';
  print $value;
}

Answer 5

foreach ($_SESSION as $key => $value) {
  echo $key ;
  echo $value;
}

Answer 6

$array = array();
/*$array = array(0 => "Value");*/
$array[0] = "Value";
$_SESSION["array"] = $array;
/*$_SESSION["array"][0]= "Value 2";*/
foreach($_SESSION["array"] as $key => $value){
  print $key;
  print $value;
}