php接收表单的方法

<form name="form1" method="post" action="index.php">
<input type="text" name="contents" value="">
<input type="submit" value="提交">
</form>
<?php
//获取表单提交的数据
$contents = $_POST['contents'];
echo $contents;
?>

<form name="form1" method="get" action="index.php">
<input type="text" name="contents" value="">
<input type="submit" value="提交">
</form>
<?php
//获取表单提交的数据
$contents = $_GET['contents'];
echo $contents;
?>