html頁面：

<form method="post" action="checkTest.php">

<input name="test[]" type="checkbox" value="1" />

<input type="checkbox" name="test[]" value="2" />

<input type="checkbox" name="test[]" value="3" />

<input type="checkbox" name="test[]" value="4" />

<input type="checkbox" name="test[]" value="5" />

<input type="submit" name="Submit" value="Submit" />

</form>

獲取值：echo implode(",",$_POST['test']);