search key in php
<p>I would like to search a key of an array in php which contains the word.</p>

<p>Example :</p>

<pre><code>$test = array("hello"=&gt;"value1","hello5"=&gt;"value","testinghello"=&gt;"test");
</code></pre>

<p>I would like to use it like this.</p>

<pre><code>if(!empty($test[key_here_which_contains_hello]))
</code></pre>

<p>I would like to display the value of an array with the key contains hello. In that example all value will be displayed because all keys has "hello".</p>

<p>Thanks for your help.</p>
