CODEWITHSUNDEEP
phphtml
Mucca019
Mucca019

Reputation: 201

how to enter a placeholder & a value within the same text box

I want to watermark a text box with a variable.

I've got it working by doing: placeholder="<?php echo $user;?>">

This puts the correct information in the text box as a watermark. However if I don't enter any information in that text box (because I want the data to remain the same) it clears the data stored in the $user because I have not updated the record.

Upvotes: 3

Views: 1234

Answers (2)

Jhecht
Jhecht

Reputation: 4435

While not particularly a PHP solution (for which I would recommend Ben's answer), if you need to have the value, then you can just use CSS to have the values display as placeholders and then use :focus to make it look like a regular input tag.

You could also use a data-* attribute and then use Javascript/jQuery on submit to set the values to the data attribute you designate.

input[type="text"] {
  color: darkgrey;
  padding: 5px;
  border: 1px solid grey;
}
input[type="text"]:focus {
  color: black;
  background-color: white;
}
<input type="text" value="Placeholder value" />

Upvotes: 2

Slim Shady
Slim Shady

Reputation: 384

This doesn't set a value for the input but it's reliable even when the user has intentionally submitted an empty input:

if (strlen($_POST['user']) == 0) {
  $_POST['user'] = $user;
}

You can also make a function out of it:

function nullCheck($index, $default = 'UNKNOWN') {
  if (strlen($_POST[$index]) == 0) {
    $_POST[$index] = $default;
  }
}

Then call it:

nullCheck('user', $user);

But I'm not sure if you put the post variables(in the function) as: {$_POST[$index]}, because it might consider the index variable as a separate variable.

NB: This code is untested

Upvotes: 1

Related Questions