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Re: testing for source to use [message #181662 is a reply to message #181624]

Fri, 24 May 2013 19:22

richard

Messages: 213
Registered: June 2013

Karma:

Senior Member

On Fri, 24 May 2013 05:38:44 -0700, Scott Johnson wrote:

> On 5/23/2013 8:23 PM, richard wrote:
>
>>
>> $result = mysql_query("SELECT avid FROM A$year WHERE id = $number");
>> if (!$result) { echo 'Could not run query: ' . mysql_error(); exit; }
>> $vid = mysql_fetch_row($result);
>>
>> echo $vid[0];
>> $v=$vid[0];
>> $v1=substr($v,0,1);
>>
>>
>> $yt="http://www.youtube.com/watch?v=".$vid[0];
>>
>> if ($v1="/"){$yt="http://mroldies.net".$vid[0];}
>> echo "<br />".$yt;
>>
>
> Richard.....*lost for words*
>
> *refound*
>
> Brother you really should start keeping notes of these simple errors.
> You keep revisiting the errors that people do when they first start
> using PHP.
>
> Many in the NG have taken their own time to point these out and give you
> good advice, and to not learn or write the solutions down is being very
> disrespectful to those peoples times, which is why you probably get many
> disparaging comments.
>
> I have a very bad memory myself but I keep a notebook and revisit it
> whenever I run into an error to ensure I (or someone else) have not
> already solved it previously.
>
> Just a suggestion.
>
> Scotty

FYI, I found that I could use the substr() function to solve my problem
with.
With everything that I had read, there was one very important thing every
one of these writers left out!
That being, the natural mind says the first character is "1" and therefore
the number 1 should be used if you want to start at the begining.
e.g.
substr("123",1,1)
The output is "1" correct?
Wrong!
It is "2".
To output the "1", the correct code is substr("123",0,1).
Why?
I suspect that this is due to the fact the substring is treated as an array
and the array always begins with [0] by default.

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[Message index]

		testing for source to use By: richard on Fri, 24 May 2013 03:23
		Re: testing for source to use By: Beauregard T. Shagnas on Fri, 24 May 2013 03:36
		Re: testing for source to use By: JohnT on Fri, 24 May 2013 10:17
		Re: testing for source to use By: Doug Miller on Fri, 24 May 2013 10:50
		Re: testing for source to use By: Tim Streater on Fri, 24 May 2013 11:53
		Re: testing for source to use By: The Natural Philosoph on Fri, 24 May 2013 12:23
		Re: testing for source to use By: Doug Miller on Fri, 24 May 2013 13:10
		Re: testing for source to use By: richard on Fri, 24 May 2013 19:10
		Re: testing for source to use By: Doug Miller on Fri, 24 May 2013 21:41
		Re: testing for source to use By: Scott Johnson on Fri, 24 May 2013 12:38
		Re: testing for source to use By: richard on Fri, 24 May 2013 19:22
		Re: testing for source to use By: Scott Johnson on Fri, 24 May 2013 22:12

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