[PHP] Strange Array Error
Hi, I have been trying for the past two hours to understand why I get an error with the following code: '; } ?> Fatal error: Unsupported operand types in /usr/home/expensesystem/public_html/test.php on line 5 I am trying to create a loop where $i is added to array element $i, and can't find any information relating to this on google or php.net... Thanks for your advice. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Strange Array Error
On Thu, 21 Oct 2004 14:28:26 +0100, Shaun <[EMAIL PROTECTED]> wrote:
> I have been trying for the past two hours to understand why I get an error
> with the following code:
>
> $test_array[] = array();
$test_array = array();
> $i = 0;
> while($i < 7){
> $test_array[$i] += $i;
$test_array[$i] = $i++; // maybe what you want ?
> echo '$day_total[$i] = '.$day_total[$i].'';
> }
> ?>
>
> Fatal error: Unsupported operand types in
> /usr/home/expensesystem/public_html/test.php on line 5
>
> I am trying to create a loop where $i is added to array element $i, and
> can't find any information relating to this on google or php.net...
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Re: [PHP] Strange Array Error
Shaun The problem is that you've assigned $test_array[] = array(); This means that the first element ($test_array[0]) is an array. You're then trying to add $i to it, as in $test_array[$i] = $test_array[$i] + 1; in terms of types what you're doing is array = array + integer Which doesn't make any sense. If you change the first line to $test_array = array(); Then the individual elements will all be NULL, which evaluates to 0 in an integer context, and you will get the result you expect. Hope this helps Cheers Chris Shaun wrote: Hi, I have been trying for the past two hours to understand why I get an error with the following code: '; } ?> Fatal error: Unsupported operand types in /usr/home/expensesystem/public_html/test.php on line 5 I am trying to create a loop where $i is added to array element $i, and can't find any information relating to this on google or php.net... Thanks for your advice. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Strange Array Error
[snip]
>
> Hi,
>
> I have been trying for the past two hours to understand why I get
> an error
> with the following code:
>
> $test_array[] = array();
> $i = 0;
> while($i < 7){
> $test_array[$i] += $i;
> echo '$day_total[$i] = '.$day_total[$i].'';
> }
> ?>
>
> Fatal error: Unsupported operand types in
> /usr/home/expensesystem/public_html/test.php on line 5
>
> I am trying to create a loop where $i is added to array element $i, and
> can't find any information relating to this on google or php.net...
>
> Thanks for your advice.
Try this:
';
$i++;
}
?>
PHP objected to the use of +=
You did NOT want to increment $i before doing the echo anyway, did you?
Graham
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Re: [PHP] Strange Array Error
You are making the first element of the array $test_array and array item. An array inside and array. $test_array[] = array() is the same as $test_array[0] = array() So what you are trying to do is add $i to an array. Kind of like trying to figure out what happens when you add 1 to the color red. Try one of these: $test_array = array() or $test_array = array(0,0,0,0,0,0,0) Basically, drop the brackets. You use brackets to reference and array element, not the array itself. On Oct 21, 2004, at 9:28 AM, Shaun wrote: Hi, I have been trying for the past two hours to understand why I get an error with the following code: '; } ?> Fatal error: Unsupported operand types in /usr/home/expensesystem/public_html/test.php on line 5 I am trying to create a loop where $i is added to array element $i, and can't find any information relating to this on google or php.net... Thanks for your advice. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- Brent Baisley Systems Architect Landover Associates, Inc. Search & Advisory Services for Advanced Technology Environments p: 212.759.6400/800.759.0577 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Strange Array Error
That is, expected results, *apart* from the infinite loop you'll have due to not incrementing $i Cheers Chris Chris Dowell wrote: Shaun The problem is that you've assigned $test_array[] = array(); This means that the first element ($test_array[0]) is an array. You're then trying to add $i to it, as in $test_array[$i] = $test_array[$i] + 1; in terms of types what you're doing is array = array + integer Which doesn't make any sense. If you change the first line to $test_array = array(); Then the individual elements will all be NULL, which evaluates to 0 in an integer context, and you will get the result you expect. Hope this helps Cheers Chris Shaun wrote: Hi, I have been trying for the past two hours to understand why I get an error with the following code: '; } ?> Fatal error: Unsupported operand types in /usr/home/expensesystem/public_html/test.php on line 5 I am trying to create a loop where $i is added to array element $i, and can't find any information relating to this on google or php.net... Thanks for your advice. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Strange Array Error
Oh @#*!
Thanks Greg, I always get that one wrong !
$test_array = array();
:)
> -Original Message-
> From: Graham Cossey [mailto:[EMAIL PROTECTED]
> Sent: 21 October 2004 14:48
> To: Shaun; [EMAIL PROTECTED]
> Subject: RE: [PHP] Strange Array Error
>
>
> [snip]
> >
> > Hi,
> >
> > I have been trying for the past two hours to understand why I get
> > an error
> > with the following code:
> >
> > > $test_array[] = array();
> > $i = 0;
> > while($i < 7){
> > $test_array[$i] += $i;
> > echo '$day_total[$i] = '.$day_total[$i].'';
> > }
> > ?>
> >
> > Fatal error: Unsupported operand types in
> > /usr/home/expensesystem/public_html/test.php on line 5
> >
> > I am trying to create a loop where $i is added to array element $i, and
> > can't find any information relating to this on google or php.net...
> >
> > Thanks for your advice.
>
> Try this:
> $test_array[] = array();
> $i = 0;
> while($i < 7){
> $test_array[$i] = $i;
> echo '$test_array[$i] = '.$test_array[$i].'';
> $i++;
> }
> ?>
>
> PHP objected to the use of +=
> You did NOT want to increment $i before doing the echo anyway, did you?
>
> Graham
>
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> PHP General Mailing List (http://www.php.net/)
> To unsubscribe, visit: http://www.php.net/unsub.php
>
>
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RE: [PHP] Strange Array Error
On Thu, 2004-10-21 at 15:04 +0100, Graham Cossey wrote: > Oh @#*! > Thanks Greg, I always get that one wrong ! > > $test_array = array(); > > :) a few less lines version: $test_array = array(); for ($i=0; $i<7; $i++) $test_array[$i] = $i; print_r($test_array); hth, -Robby -- /*** * Robby Russell | Owner.Developer.Geek * PLANET ARGON | www.planetargon.com * Portland, OR | [EMAIL PROTECTED] * 503.351.4730 | blog.planetargon.com * PHP/PostgreSQL Hosting & Development / signature.asc Description: This is a digitally signed message part
Re: [PHP] Strange Array Error
On Thu, 21 Oct 2004 14:28:26 +0100, Shaun <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I have been trying for the past two hours to understand why I get an error
> with the following code:
>
> $test_array[] = array();
//Change it to $test_array=array();
/*Your statement adds an array to the current+1 position of the
array since you've put the [] after the variable the PHP interpreter
initializes it as an array type of variable so it takes that action*/
> $i = 0;
> while($i < 7){
> $test_array[$i] += $i;
> echo '$day_total[$i] = '.$day_total[$i].'';
// Change the single quotes to double quotes
// i.e. echo "{$day_total[$i]}={$day_total[$i]}";
// Add ++$i; here
> }
> ?>
Notes: -Always use double quotes if you want to concatanate vars with strings.
-Whe ur using arrays in ur strings that is to be
concatenated delimit the array by { and }.
-Take a look at sprintf function to better format strings in
case ur familiar with C coding style.
-Sometimes googling might not help nor PHP.net. So, the PHP
manual is ur friend. e.g you could go to Array section in PHP manual
and find out what's up :)
>
> Fatal error: Unsupported operand types in
> /usr/home/expensesystem/public_html/test.php on line 5
>
> I am trying to create a loop where $i is added to array element $i, and
> can't find any information relating to this on google or php.net...
>
> Thanks for your advice.
>
> --
> PHP General Mailing List (http://www.php.net/)
> To unsubscribe, visit: http://www.php.net/unsub.php
>
>
Hope that helps.
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97150-4779817
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