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Re: validation of a text box input... [message #180780 is a reply to message #180777]

Mon, 18 March 2013 19:28

J.O. Aho
Messages: 194
Registered: September 2010

Karma:

Senior Member

On 18/03/13 16:46, nag wrote:
> Hi,
>
> I have created a text box to take input to open another form. If the text box is not given any value and press enter it is activating the linked form with empty values. How to validate the text box not accept the null value. I tried with isset() function but i dont know how to apply it. The following is some part of my text box code .
>
>
>
> <form name="myform" action="nextform.php?id=<?php echo $id; ?>" method="GET">
> <li><a ><b>ID Code:</b><br/><input type="text" color:'red' style="width:10em" maxlength=9 name=id onfocus="if (this.value == 'Enter ID Code') {this.value = '';}"></a>
> <?php echo $id ?>
>
> </li>
> <li>
> <input type="submit" value="submit" style="margin-left:4.5em;color:#be1400;">
> </li>
>
> Where is the error?

http://www.php.net/manual/en/function.empty.php

if(!empty($_GET['id'])) {

}

You should have all values quoted and you shouldn't mix quote types,
there is a closed source browser that people use even if it's extremely
buggy which may fail to work properly when mixing quotes. Also validate
your HTML code with a validator, w3c has one if your IDE don't have one
built in.

--

//Aho

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[Message index]

		validation of a text box input... By: Nagaraju Kachapuram on Mon, 18 March 2013 15:46
		Re: validation of a text box input... By: Salvatore on Mon, 18 March 2013 18:19
		Re: validation of a text box input... By: Nagaraju Kachapuram on Mon, 18 March 2013 23:54
		Re: validation of a text box input... By: Salvatore on Tue, 19 March 2013 16:13
		Re: validation of a text box input... By: J.O. Aho on Mon, 18 March 2013 19:28

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