title: Call to undefined function password_hash() PHP 5.3.19
body: <p>Hi I am try to use the <code>password_hash()</code> function like so</p>
  
  <pre><code>echo password_hash("mySecretPassword", PASSWORD_DEFAULT);
  </code></pre>
  
  <p>But I am gettig this error which I can figure out</p>
  
  <pre><code>Fatal error: Call to undefined function password_hash() 
  </code></pre>
  
  <p>My current PHP version is 5.3.19 32 bit</p>
  
  <p>What is the cause of this issue?</p>