title: How can I assign different range of contacts to different logged in users in PHP and MySQL
body: <p>I am trying to make a simple CRM in php and mysql. But stuck at a portion.
  I have a table of users which can log-in at same time and access the <strong>contacts table</strong> all at a time. But I want to assign different range of data to them. For Example: if '<strong>A</strong>', '<strong>B</strong>' &amp; '<strong>C</strong>' all logs-in at the same time and access the table 'contacts' in front end, I want <br>
  '<strong>A</strong>' to show data from <strong>1-500</strong>. <br>
  '<strong>B</strong>' - <strong>501-1000</strong>. &amp; <br>
  '<strong>C</strong>' - <strong>1001-1500</strong> etc.</p>
  
  <p>If someone can help me in the right direction to how to achieve this, I'll be very thankful.</p>