smarty isset not working notice Undefined offset 3.1.32v and 3.1.33v

[jvalencia74]

when trying to update it happens to me in both versions and it is in a section loop

{section name=field loop=$result}
{if ((isset($result[field].changeState)) and ($role_update == "1"))}
{else}
{/if}
{/section}

template return error

smarty\ce7fa0ecf0a71469a5f7beae553a6f8123a19440_0.file.Maintenance.Dispatchers.input.tpl.php:203] Undefined index: changeState

it only happens when reading an array with section

I have the same error in several templates with different index

works well in 3.1.30v

tks

[mylemans]

I have the same issue, almost (if not all) my sections broke!

[pszalko]

I can confirm this issue for me too. Smarty code inside {section} does not generate isset().

[jeckyl]

Hi,
I also confirm this concern. Quite embarrassing in the development of testing its variables to realize that the test itself does not work.

[tmcreativeltd]

Come on Smarty... surely this is what isset is for? Any plans on a fix?

[pszalko]

I have encountered this issue again...

Here is some follow up if and workaround that I found.

Use case:
The following Smarty code raised PHP Notice:

<li class="{if isset($availabilityDates[$group->getId()][$dateString]) == true} selected{/if}"

After short inspection:

1. Investigation:
I have found out that this issue might be related to implementation in smarty_internal_templatecompilerbase.php:633 (for Smarty v3.1.33):

$pa[] = (strpos($p, '(') === false) ? ('isset(' . $p . ')') : ('(' . $p . ' !== null )');

Variable $p holds the exact line of the template that is being parsed by Smarty.
In that particular line my template code is isset(... [$group->getId()]...).
Do you see already what's going on? Smarty looks for ( char, and if found isset(...) is stripped and replaced by !== null in compiled template.

2. Workaround:
Remove any parenthesis from argument of isset() method.

Here is workaround implementation for my use case:

{assign var="groupId" value=$group->getId()}
<li class="{if isset($availabilityDates[$groupId][$dateString]) == true} selected{/if}"

I hope this knowledge will help someone in Smarty team to resolve this issue.

[wisskid]

Duplicate of #453