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■a.php
session_start();
$SESSION['hoge'] = "ほげ";
print $_SESSION['hoge'];

<a href="b.php">Bへ</a>
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とりあえず.......
$SESSION['hoge'] = "ほげ";
は
$_SESSION['hoge'] = "ほげ";
なのだが


誰か突っ込め