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Re: take two - fetch items from a row. [message #181300 is a reply to message #181298]

Sat, 04 May 2013 02:20

Richard Yates
Messages: 86
Registered: September 2013

Karma:

Member

On Fri, 3 May 2013 19:54:33 -0400, richard <noreply(at)example(dot)com>
wrote:

> On Fri, 03 May 2013 16:32:59 -0700, Richard Yates wrote:
>
>> On Fri, 3 May 2013 19:02:58 -0400, richard <noreply(at)example(dot)com>
>> wrote:
>>
>>> This code may reside on a page in a line.
>>> < a href="http:www.code.com/gettable.php?number=1">
>>>
>>>
>>> Where I show id=$number, is that the way I want to show it or is there a
>>> beter way?
>>> I want to retrieve the row corresponding to the id number given in the
>>> link.
>>>
>>> <?php
>>>
>>>
>>> $number=$_GET["number"];
>>> if (empty($number)) {$number=1;}
>>> $number=(int)$number;
>>>
>>> // connections code left out intentionally //
>>>
>>>
>>> $result = mysql_query("SELECT id,email FROM people WHERE id = $number");
>>> if (!$result) {
>>> echo 'Could not run query: ' . mysql_error();
>>> exit;
>>> }
>>> $row = mysql_fetch_row($result);
>>>
>>> echo $row[0]; // 42
>>> echo $row[1]; // the email value
>>> ?>
>>
>> Your code does work. There are details about it that could be improved
>> and others made suggestions about in response to your first post. I
>> notice that in this post your id field in the database is assumed to
>> be a number where the last time it seemed to be a string. Do yuou know
>> which it is?
>>
>> Have you learned about validating and sanitizing user input yet?
>
> I am assuming that "id" is an integer since that is how it is in the
> database field.
> the int() function changes the string to an integer so that's no big deal.
>
> As with anything you do, you refine your output as time marches on.
> After all, we all know YOU were born an expert in the field right?

No, i am a (possibly advanced) beginner and I am not sure what your
attitude is about. I've tried out your code and answered your
questions (twice). The (basic) beginner level of your code and
questions implied that a gentle question about input validation was
reasonable. Apparently not.

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[Message index]

		take two - fetch items from a row. By: richard on Fri, 03 May 2013 23:02
		Re: take two - fetch items from a row. By: richard on Fri, 03 May 2013 23:13
		Re: take two - fetch items from a row. By: Denis McMahon on Sat, 04 May 2013 00:59
		Re: take two - fetch items from a row. By: Richard Yates on Fri, 03 May 2013 23:32
		Re: take two - fetch items from a row. By: richard on Fri, 03 May 2013 23:54
		Re: take two - fetch items from a row. By: Richard Yates on Sat, 04 May 2013 02:20
		Re: take two - fetch items from a row. By: Beauregard T. Shagnas on Sat, 04 May 2013 03:37
		Re: take two - fetch items from a row. By: SwissCheese on Sat, 04 May 2013 11:00

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