create a simple form by php for entering a mobile number

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1.00/5 (1 vote)

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hello, i m in need of a php code that creates a form in which we get to enter a phone number that may be from 5-18 digits and when the submit button in form is pressed it should display the nuber with last four digits starred.
EX- if i enter this number 999922233
output shud come lyk 99992****

please help guys i need to submit this within 5 hrs

<?php
//$strVal = getInput("Please input a phone number : ");
$strVal =$_GET["number"];
if (isset($strVal)) {
    $l = strlen($strVal);
    $strPhone = substr($strVal, $l, ($l - 4)) . "****";
    $NumberPrefix = substr($strVal, 0, ($l - 5));
    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 ); ?>" />
    </label></p>
 
    <p><input type="submit" name="submit" class="button" value="Submit" /></p>
  </form>
 
</body>
</html>

Posted 18-Jun-13 20:21pm

nkhldhar

Updated 19-Jun-13 2:25am

v3

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Prasad Khandekar · Accepted Answer · 2013-06-18T20:25:00

Solution 1

Hello,

Please have a look at this tutorial[^]. The tutorial will show you how a PHP page can be made to get contact information from the user validate it and re-display.

For a simple non web scenario following snippet should suffice.

PHP

<?php
$strVal = getInput("Please input a phone number : ");
if (isset($strVal)) {
    $l = strlen($strVal);
    $strPhone = substr($strVal, 0, ($l - 4)) . "****";
    echo "Masked Number is : " . $strPhone;
}

function getInput($msg){
  fwrite(STDOUT, "$msg: ");
  $varin = trim(fgets(STDIN));
  return $varin;
}
?>

Regards,

Posted 18-Jun-13 20:25pm

Prasad Khandekar

Updated 18-Jun-13 23:52pm

v2

Comments

nkhldhar 19-Jun-13 2:26am

also adding to query that i have very less knowledge about php!!

Prasad Khandekar 19-Jun-13 2:35am

The tutorial should help you. For PHP help refer http://www.php.net/manual/en/language.variables.php.

Regards,

nkhldhar 19-Jun-13 2:41am

if u could just jot down the code i would be thankful as i m not having much knwledge of php thus cant understand the above stuff

nkhldhar 19-Jun-13 2:50am

as i need to pass it in 5 hrs i need somebody to help me out with it as soon as possible

nkhldhar 19-Jun-13 2:29am

see i only have to enter a phone no. that can be from 5-18 digits not full contact details

Prasad Khandekar 19-Jun-13 3:20am

1. Copy the code presented under section named Contact.php into notepad.
2. Remove lines 2, 5-6, 10-46, 116-118, 124-130.
4. Save the file as Contact.php
5. Add code $strPhone = ""; on line 2 just after the line which reads as <!--?php
6. Replace line which reads as $name = trim($_POST['name']); with following lines

$name = trim($_POST['name']);
if (!empty $name) {
$len = strlen($name);
$strPhone = substr($strPhone, 0 $len - 4) . "****";
}

7. Change the line which reads as

<input type="text" name="name" class="textfield" value="<?php echo htmlentities($name); ?>" />

WITH

<input type="text" name="name" class="textfield" value="<?php echo htmlentities($strPhone); ?>" />

Regards,

nkhldhar 19-Jun-13 3:32am

i dnt want to keep colors and keep phone numbers 8-15 digits

Prasad Khandekar 19-Jun-13 3:39am

I don't think you have read my earlier response carefully. It removes all validation lines. For colors remove everything between <style type="text/css"> & </style>

Regards

nkhldhar 19-Jun-13 3:50am

now page is not displaying sir!!

nkhldhar 19-Jun-13 3:53am

nkhldhar 19-Jun-13 4:04am

i've uploaded the code above seperately for better look pls take a look at problems

nkhldhar 19-Jun-13 3:37am

how do i make it simple with no colors and all sir? and still having problems with dispaying last four ddigits as ****

Prasad Khandekar 19-Jun-13 5:21am

I have created a small demo here (http://jsfiddle.net/kDbHZ/) Please have a look at it and see if helps. It's done in pure HTML no PHP. The code you pasted below does the same via a server roundtrip and using PHP.

Regards,

nkhldhar 19-Jun-13 5:25am

the code is perfect but i need it in php

nkhldhar 19-Jun-13 5:29am

and my code isnt working it doesnt display

Prasad Khandekar 19-Jun-13 5:36am

The above code will work when hosted in a web server like Apache HTTP?

nkhldhar 19-Jun-13 5:39am

actually i have to show it on a IDE called geany so.... kind of helpless here

Prasad Khandekar 19-Jun-13 5:42am

It's a text editor and won't execute the code.

nkhldhar 19-Jun-13 5:46am

no but if u store the file in .php format and open it thru your browser it does

nkhldhar 19-Jun-13 5:53am

so if i could get it in a php format that wud run it would be great!!

nkhldhar 19-Jun-13 5:38am

sir i have 2 hrs at max to give this away if u could fill in yhe missing parts for me it will be great

Prasad Khandekar 19-Jun-13 5:39am

As said earlier the code will work when hosted in a Web server. The phone number value will get changed once the form is submitted. ie. Upon clicking the submit button.

nkhldhar 19-Jun-13 5:43am

but sir php? because the code will be evaluated personally by my head and i've tried running it on geany and its not functioning

Prasad Khandekar 19-Jun-13 5:53am

I have updated the solution, please check it.

nkhldhar 19-Jun-13 5:55am

sir it doesnt show a textbox , no buttons, and only says that masked no. is ****

nkhldhar 19-Jun-13 5:58am

and it does not take a no. from user FYI:(5-18) digits is range of no.

Prasad Khandekar 19-Jun-13 6:02am

Save the code snippet in a file named demo.php and execute it from command line php -f demo.php. It should prompt you to enter the number enter the number and hit enter.

nkhldhar 19-Jun-13 6:05am

command line????

nkhldhar 19-Jun-13 6:08am

how do we do that command line thing?

Prasad Khandekar 19-Jun-13 8:16am

dos prompt.

nkhldhar 19-Jun-13 8:24am

this is ubuntu sir

nkhldhar 19-Jun-13 8:26am

i've made some changes kindly have a look and lemme knw whats missing

nkhldhar 19-Jun-13 8:28am

i have short tym left sir kindly tell me how do i make this work

nkhldhar 19-Jun-13 8:35am

one last thing sir if u cud tell me how can i limit the entry of digits from 5-18 in the corrected code

Prasad Khandekar 19-Jun-13 8:42am

For web version just change the following line

<input type="text" name="number" class="textfield" value="<?php echo htmlentities($NumberPrefix ); ?>" />

to<input type="text" name="number" class="textfield" value="<?php echo htmlentities($NumberPrefix ); ?>" maxlength="18"/>

nkhldhar 20-Jun-13 1:20am

and something to add minimun length sir????

nkhldhar 20-Jun-13 1:21am

because range of digiys to be entered should be 5-18

nkhldhar 19-Jun-13 6:38am

sir? are u there??