[SOLVED] Quick & Simple PHP Questions

[thesaleboat]

For a Form:

 

How do you check to see that the user only enters numbers in his phone number?

 

Is there a way to make the browser go back instead of to a specific url? For example instead of:

 

echo '<meta content="1; URL=index.htm#ThankYouForYourResume.php" http-equiv="Refresh" />'; //go back to homepage after they read the thank you message

have the user go to the last page he was at?

[discomatt]

Only numbers is either

 

is_numeric( $var ); // allows decimals and -'s

 

ctype_digit( (string)$var ); // only allows 0-9

 

Going 'back' is purely javascript

[DarkWater]

1) Only numbers:

<?php
//assume $number is their entered number
if (!ctype_digit($number)) {
 //not all digits, give an error
}
?>

 

2) You could use Javascript for that.  It can be done with history.go(-1).

 

EDIT: Discomatt beat me to it, lol.

[thesaleboat]

You guys are awsome hahaha thanks guys!