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== JavaScript ==
[https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/typeof?redirectlocale=en-US&redirectslug=JavaScript%2FReference%2FOperators%2Ftypeof]
<pre>
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console.log(typeof(12345)); // Returns number
</pre>
== PHP ==
[https://secure.php.net/manual/en/function.gettype.php]
<pre>
echo gettype('foo'); // Returns string
echo gettype(12345); // Returns integer
</pre>
=== Specific tester functions ===
* [https://secure.php.net/manual/en/function.is-array.php is_array()]
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