title: Get the value in square brackets array php
body: <p>I would get the data in square brackets array php.</p>
  
  <p>I have this array : </p>
  
  <pre><code>Array
  (
      'ETHBTC' =&gt; 0.02813100,
      'LTCBTC' =&gt; 0.00794700,
      'BNBBTC' =&gt; 0.00126500,
      'BTCUSDT' =&gt; 3994.17000000,
      'ETHUSDT' =&gt; 112.32000000
  
  );
  </code></pre>
  
  <p>For example I would get ethbtc, ltcbtc for values.</p>
  
  <p>How can I do this?</p>
  
  <p>I need your help.</p>