multi-hash in php

I try to convert some code from C++/Qt to php.

There is something like:

Code:

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QMultiHash<int, QString> Var;

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It means that there can be many values associated to the same key, and at the same time, like:
0 => "Zero"
0 => "0"
0 => "etc."

How can it be done in php?

One workaround could be to use an associative array of arrays, i.e.,

PHP Code:

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$var = array(0 => array("Zero", "0", "etc.")); 


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Good idea, thanks