Php regex date validation

Question

I'm trying to validate a date input by the use of regex.

if(!preg_match("/^[0-9]{4}\/[0-9]{2}\/[0-9]{2}$/", $_POST['variant']['sales_start'])) { 
  echo "invalid";
}

The string I'm trying to input is 2011-02-03, however it's failing, and I can't seem to figure out why.

Can someone please tell me what I'm doing wrong?

Thanks in advance

Answer 1

You're separating the date with dashes and the regex is looking for slashes?

Try

if ( !preg_match( "/^[0-9]{4}-[0-9]{2}-[0-9]{2}$/", $_POST['variant']['sales_start'] ) )
{ 
    echo "invalid";
}