pre checking of submitted data

bond007 · October 13th, 2008, 02:17 PM

hi everyone..
In my project,i have a html form with several fields.
I want that no one could enter anything except digits in those fields.if someone enters any character or any other thing it will generate error.
Is there any php function by which i can check the submitted data from the form,for the presence of any character,so that i can generate error for that to the user.

thank u for ur support..

urtrivedi · October 15th, 2008, 11:24 PM

You need not to use php. You can do it at client side using javascript.

<html>
<script language='javascript'>

isIntegerÃ Ã = /^[0-9\-]+$/;

function checkdata()
{
    if (!isIntegerÃ Ã (document.frm.txt1.value))
    {
        alert('Enter valid number');
        document.frm.txt1.focus();
        return false;
    }
    if (!isIntegerÃ Ã (document.frm.txt2.value))
    {
        alert('Enter valid number');
        document.frm.txt2.focus();
        return false;
    }

    document.frm.submit();
}
</script>
<body>

<form name='frm' id='frm' method='post' action ='somescript.php'>

<input type=text name='txt1' >
<input type=text name='txt2' >
<input type=button name=btn1 onClick='javascript:checkdata();'>

</form>

</body>

</html>

urt

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