Question

i wanna keep last value of input box after submit and this is my code .
but my code dosent work

<input type="text" name="name" value="<?php echo $_GET['name'];?>" />

should i use javascript or php ?

Answer 1

I think that your question “should i use javascript or php ?” doesn’t mean:

Using javascript is the best practice to fill the form fields with the previously
submit values?

My answer should be: no, the browser could have not the javascript.

But I think that your question is:
why my post submit values are not present into the global macro $_GET?

Of course you can use the $_POST[‘name’]; entity to show the value, but this is a really bad choice:

• may be in the future you can change the form method from POST to GET
• may be in the future you want fill the form with data taken from DB
• may be you should validate your input before render the form

so you may do something like this:

• inside the PHP

  $valid = validate( $_POST );

• inside the HTML

  <input type=”text” name=”name” value=”<?php echo $valid[‘name’];?>” />