need help wid minimum characters to be entered and clearing data on refresh

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XML

<?php
//$strVal = getInput("Please input a phone number : ");
echo"Please Enter Numbers Between 5-18 digits";
$strVal =$_GET["number"];
if (isset($strVal)) {
    $l = strlen($strVal);
    $strPhone = substr($strVal, $l, ($l - 4)) ."****";
    $NumberPrefix = substr($strVal, 0, ($l - 4));
    echo "<br />\n";
    echo "Masked Number is : ". $NumberPrefix.$strPhone;
}



?>

<!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>Simple PHP Form Demo</title>
</head>
<body>

  <form id="number" method="get" action="">
   <p><label>number: <br />
    <input type="text"  name="number" class="textfield" value="<?php echo htmlentities($NumberPrefix.$strPhone ); ?>" maxlength="18"/>
    </label></p>

    <p><input type="submit" name="submit" class="button" value="Submit" /></p>
    <script>document.form.reset();</script>
  </form>


</body>
</html>

above is my code to enter a telephone no and display same no. but masked.now two things that i need help with are
1.how to clear the data (entered by user in text area as well as on that echo statement) on refresh of browser
2.how to limit the minimum digits to 5

pls help guys....

Posted 19-Jun-13 20:28pm

nkhldhar

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AlphaDeltaTheta · Accepted Answer · 2013-06-20T21:27:00

Solution 1

1. To clear the data there is an reset input type

HTML

<input type="reset">Clear</input>

To clear the echo message, set the innerHtml of the content to ""

But, validation should be done with client side, using javascipt/jquery/HTML5 validation. Not on server side.
See this[^]

Good Luck!

Posted 20-Jun-13 21:27pm

AlphaDeltaTheta