title: how to generate qr code with php 7.0 and laravel 5.5
body: <p>I am working on a project which is on laravel 5.5, and I need to generate qr code. for some resign I can't update php version.</p>
  
  <p>I am using <a href="https://www.simplesoftware.io/docs/simple-qrcode" rel="nofollow noreferrer">https://www.simplesoftware.io/docs/simple-qrcode</a> </p>
  
  <p>but I got error
  <a href="https://i.stack.imgur.com/IDmOV.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/IDmOV.png" alt="enter image description here"></a></p>
  
  <p>how to resolved this issue.</p>