Php Help!!!!

HI, I'm making a php page where i have to inlucde restrictions on on the user input fields. I cant get the telephone and birthdate fields to work where the restrictions are: on the phone field Allowed separators are spaces, dashes and brackets“( ) “. Phone number contains 10 numbers. on the birthdate filed: Must be a date and must be a date before the current date

Why give the user the option?

Try seperate input boxes for each. ie...

<input type="text" name="area_code"> -
<input type="text" name="exchange"> -
<input type="text" name="last_four">

and...

<select name="date_month">
<option value="01" SELECTED>January</option>
<option value="02">February</option>
<option value="03">March</option>
<option value="04">April</option>
<option value="05">May</option>
<option value="06">June</option>
<option value="07">July</option>
<option.....
</select>

<select name="date_day">
<option value="01" SELECTED>1</option>
<option value="02">2</option>
<option value="03">3</option>
<option value="04">4</option>
<option value="05">5</option>
<option value="06">6</option>
<option value="07">7</option>
<option value="08">8</option>
<option value="09">9</option>
<option value="10">10</option>
<option....
</select>

<select name="date_year">
<option value="2003" SELECTED>2003</option>
<option value="2004">2004</option>
<option value="2005">2005</option>
<option value="2006">2006</option>
<option....
</select>