PHP和Jquery中倾斜和倾斜字符的自定义验证规则

I need a good validation for tild(~) and tilt(`) character in PHP and Jquery. Here is the Jquery validation what i have made.

$.validator.addMethod("validSMS", function(value, element) {
    if (value.indexOf('~') === -1 || value.indexOf('`') === -1)
    {
        return true;
    }
    else
    {
        return false;
    }
}, "Tild and tilt Character is not allowed");

But I need another good method for this validation in Jquery and in PHP also.

This is the php version, using strpos

if (strrpos($mystring, "~") === false && strrpos($mystring, "`") === false ) { 
    // $mystring has no tild(~) and tilt(`) chars
}

this is what can be done with javascript. you can change condition as per your requirement.

<script language=javascript>
  var txt='jayd~ev';

  var re1='.*?';    // Non-greedy match on filler
  var re2='(~)';    // Any Single Character 1

  var p = new RegExp(re1+re2,["i"]);
  var m = p.exec(txt);
  if (m != null)
  {
      var c1=m[1];
      document.write("("+c1.replace(/</,"&lt;")+")"+"
");
  }
</script>