Re: Variables

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От Kwabena Adowah Adu
Тема Re: Variables
Дата
Msg-id 20020425175633.GA16549@seamus
обсуждение исходный текст
Ответ на Variables  ("Julio Cuz, Jr." <jcuz@rccd.cc.ca.us>)
Список pgsql-php
Hi Julio,
I have 4 suggestions:
i. Perform the sizeof() operation once and outside
the loop. This will save you some cpu cycles. Also,
if you know for sure that sizeof($artist) is unlikely
to change, set it as a constant.

ii. Create the $c.x string prior to assigning a value
to the variable it represents.
eg.
 $artist_size=sizeof($artist);
 for($count = 0; $count<$artist_size; $count++)
     $varname = "c".($count+1); //
     ${$varname} = $artist[$count];
 }
 echo $c1.$c2.$c10;

iii. Go here for more notes on how to create variable variables:
http://www.php.net/manual/en/language.variables.variable.php

iv. Have lots of fun.

cheers!
Kwab

Julio Cuz, Jr. <jcuz@rccd.cc.ca.us> [2002.04.25.1757 +0200]:
> HI--
>
>   * I have the following variables: $c1 thru $c10.
>
>   * I also have a FOR loop like this:
>
>         for($count = 0; $count < sizeof($artist); $count++)
>                 { echo "<i>$artist[$count]</i><br>"; }
>         // $artist is a list of ten (10) artist's names.
>
>   * What I'm trying to do is something like this:  Combine the variables with
>     the info inside the FOR loop:
>
>             for($count = 0; $count < sizeof($artist); $count++)
>                     {  //Trying to assign the value of $c1, $c2, $c3, etc.
>     using the value of the variable $count.
>                        //But so far, it only processes the value of $count
>     alone, and it ignores $c
>                     //The line below should read like this:  $c1 = $artist[0],
>     next line:  $c2 = $artist[1], etc.
>                             $c . $count+1 = $artist[$count];
>                     }
>
>     Help!!!
>
> Julio Cuz, Jr.
> Riverside Community College
> jcuz@rccd.cc.ca.us
-------------------------------
Kwabena Adowah Adu - Consultant
Lucid Tech Solutions, LLC
P.O. Box 135
Wallingford, PA 19086
Tel : 610.583.2737 | 484.444.0788
kwab@lucidtechsolutions.com
http://www.lucidtechsolutions.com


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