Handling HTML Form Array with PHP

I'm having a really hard time trying to figure out how to handle this:
I'm trying to create two arrays, where I enter 4 quizzes for a class, and then loop through them in my PHP code.

<tr>
<td>ENGL110</td>
<td><input type="text" name="EnglArray[]"></td>
<td><input type="text" name="EnglArray[]"></td>
<td><input type="text" name="EnglArray[]"></td>
<td><input type="text" name="EnglArray[]"></td>
</tr>

<tr>
<td>MATH242</td>
<td><input type="text" name="MathArray[]"></td>
<td><input type="text" name="MathArray[]"></td>
<td><input type="text" name="MathArray[]"></td>
<td><input type="text" name="MathArray[]"></td>
</tr>
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This is how I'm trying to retrieve it in my PHP code

$EnglArray = $_POST["EnglArray"];

$MathArray = $_POST["MathArray"];

print_r($EnglArray);
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I can't figure out what I'm doing wrong, but it seems like my array is always empty, andprint_r doesn't output anything.