title: passing PHP variable to sql query in oci_parse
body: <p>I am passing a PHP varibale into a oracle sql query. but its not taking it properly giving me ORA errors like - invalid character. I tried escaping the varibale as \'$sid\', this makes error go, but the query doesnt return anything.
  Is there a way to pass PHP variable to oracle query</p>
  
  <pre><code>if(isset($_POST['action']))
  {
     $sid = $_POST['action'];
     $stid = oci_parse($conn, 'SELECT emp from table emp='$sid'');
     oci_execute($stid);
  }
  </code></pre>
  
  <p>I have removed to the database connection part for brevity. </p>