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    <p>You can take advantage of the fact that PHP will dereference the results of a function call.</p> <p>Here's some example code I whipped up:</p> <pre><code>$x = 'x'; $y = 'y'; $arr = array(&amp;$x,&amp;$y); print_r($arr); echo "&lt;br/&gt;"; $arr2 = $arr; $arr2[0] = 'zzz'; print_r($arr); print_r($arr2); echo "&lt;br/&gt;"; $arr2 = array_flip(array_flip($arr)); $arr2[0] = '123'; print_r($arr); print_r($arr2); </code></pre> <p>The results look like this:</p> <pre> Array ( [0] => x [1] => y ) Array ( [0] => zzz [1] => y ) Array ( [0] => zzz [1] => y ) Array ( [0] => zzz [1] => y ) Array ( [0] => 123 [1] => y ) </pre> <p>You can see that the results of using <code>array_flip()</code> during the assigment of <code>$arr</code> to <code>$arr2</code> results in differences in the subsequent changes to <code>$arr2</code>, as the <code>array_flip()</code> calls forces a dereference.</p> <p>It doesn't seem terribly efficient, but it might work for you if <code>$this-&gt;x-&gt;getResults()</code> is returning an array:</p> <pre><code>$data['x'] = array_flip(array_flip($this-&gt;x-&gt;getResults())); $data['y'] = $data['x']; </code></pre> <p>See <a href="https://stackoverflow.com/questions/894814/deep-copy-of-php-array-of-references">this (unanswered) thread</a> for another example.</p> <p>If everything in your returned array is an object however, then the only way to copy an object is to use <code>clone()</code>, and you would have to iterate through <code>$data['x']</code> and clone each element into <code>$data['y']</code>.</p> <p>Example:</p> <pre><code>$data['x'] = $this-&gt;x-&gt;getResults(); $data['y'] = array(); foreach($data['x'] as $key =&gt; $obj) { $data['y'][$key] = clone $obj; } </code></pre>
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    1. COI am having some trouble with this: like you mentioned in your last sentence, everything in my returned array is an object..could you maybe post some code showing how to iterate over the array and clone each element? I keep getting a "_clone method called on non-object" error. Thanks.
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    2. COnice you beat me to it! thanks for your help!
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    3. CONo problem, I added an example. `clone` only works on actual objects, so if the return result of `$this->x->getResults();` is an array of objects instead of an object, then you can't clone the array, you have to clone each element of the array separately.
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