title: Get all values from SQL that contains certain value
body: <p>I'm trying to get all values from table products, that contains for example shirt. <br>
  In this case $thin is getting values from searach box &quot;stxt&quot;. <br>
  It means that if $thin = shirt, I want to get shirt, t-shirt etc. <br> Right now, only thing that I get is only shirt, despite if I will use &quot;LIKE&quot; or &quot;=&quot; as operator in $sql statement.</p>
  <pre><code>$thin = $_POST['stxt'];
  $thing = strtoupper($thin);
  $sql = &quot;select * from products where upper(productName) LIKE '$thing'&quot;;
  </code></pre>