PHP Script to accept only numeric values

PHP Script to accept only numeric values, numeric php validation, accept only number

This article will teach you of PHP numeric value validation, accept only numeric values.

Here we are taking html form in which we are taking input type text box and one submit button and here we writing php script for checking values are numeric or not.

 <?php
error_reporting(0);
if(isset($_REQUEST['submit']))
{
$mobile=$_REQUEST['mobile'];
$flag="1";
if($flag=="1")
{
$length=strlen($mobile);
if($mobile=="")
{
$mbl="Please enter the contact number";
$flag="0";
}
else if(ctype_digit($mobile)===false)
{
$mbl="Contact number must contain only digit";
$flag="0";
}
else if($length&lt;10 || $length>13)
{
$mbl="Number must be in between 10 to 13 digit";
$flag="0";
}

}

}

if(isset($_REQUEST[“reset”]))
{
$mobile=””;
}

?>
< !DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”>
<html xmlns=”http://www.w3.org/1999/xhtml”>
<head>
<meta http-equiv=”Content-Type” content=”text/html; charset=utf-8″ />
<title>Form </title>
</head>

<body>
<form method=”post” name=”form” enctype=”multipart/form-data” style=”/* [disabled]margin-left:500px; */ margin-top: 10px;”>

Contact no: <input type=”text” name=”mobile” value=”<?php if(ctype_digit($mobile)===false) {echo “”;}
else if($length&lt;10 || $length/>13) {echo “”;} else {echo $mobile;}?>”/>< ?php echo $mbl;?><br /><br />

<input type=”submit” value=” Submit ” name=”submit” style=”font-size:14px;” />
<input type=”submit” value=” Reset ” name=”reset” style=”font-size:14px;” />
</form>
</body>
</html>

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