title: PHP - check if multi array keys exist
body: <p>How I can check if multi array keys exist?</p>
  
  <p>Example:</p>
  
  <pre><code>$array = array(
      array('first_id' =&gt; 2, 'second_id' =&gt; 4, 'third_id' =&gt; 6),
      array('first_id' =&gt; 3, 'second_id' =&gt; 5, 'third_id' =&gt; 7)
  );
  </code></pre>
  
  <p>And now I want to check if in array exist row with params:</p>
  
  <pre><code>first_id = 3,
  second_id = 5,
  third_id = 6.
  </code></pre>
  
  <p>in this example, I should get no results, becase third_id = 6 is not exist (it exist but with first_id = 2 and second_id = 4).</p>
  
  <p>How I can check it in easy way in PHP?</p>
  
  <p>Thanks.</p>