title: PHP MySQL - Sanitization and Validation advice
body: <p>I'm just discovering PHPs sanitize and Validate filters, and I had been using MySQL's mysql_escape_string to stop SQL Injection.</p>
  
  <p>Now I discover that PHP can also help and I guess logically these procedures are not exclusive in their function: ie you can sanitize and validate in PHP and still arrive at a situation where escaping is necessary.</p>
  
  <p>Am I right or am I overlooking something?</p>