Problem to access array item with numeric keys. specially key === 0

[vladimirfalconpiva]

Hi,

Thanks for the new release!

I'd like to report a regression introduced in the latest version: accessing an array item by key 0 (zero) no longer works. This was supported in version 0.9.x.

Reproduction case:

<?php
require_once '/var/www/html/app/vendor/autoload.php';

use DevTheorem\Handlebars\Handlebars;
use DevTheorem\Handlebars\Options;

$template = <<<HBS
Page title if key === 0: {{this.0.title}}
Page title if key === 1: {{this.1.title}}
Page title if key === 2: {{this.2.title}}

HBS;

$opts = new Options();
$compiled = Handlebars::precompile($template, $opts);
$renderer = Handlebars::template($compiled);

// Simulate the context that RenderHelper passes: the children array directly
$children = [
    0 =>['title' => 'Page A', 'link' => '/a', 'lvl' => 1, 'active' => false, 'current' => false, 'children' => []],
    1 =>['title' => 'Page B', 'link' => '/b', 'lvl' => 1, 'active' => true, 'current' => true, 'children' => []],
    2 =>['title' => 'Page C', 'link' => '/c', 'lvl' => 1, 'active' => false, 'current' => false, 'children' => []],
];

$result = $renderer($children, []);

echo "=== RENDER OUTPUT ===\n";
echo $result;
echo "\n=== END OUTPUT ===\n";

Actual output:

=== RENDER OUTPUT ===
Page title if key === 0: 
Page title if key === 1: Page B
Page title if key === 2: Page C

=== END OUTPUT ===

Expected output: {{this.0.title}} should resolve to Page A, consistent with the behavior of keys 1 and 2.

It appears that a zero-based key is being treated as falsy and skipped during lookup. Keys 1 and 2 resolve correctly.

Thanks for looking into this — and for all the work on the library!

[theodorejb]

Thank you for reporting this! The issue stemmed from a bug in the parser, which has been fixed now in PHP Handlebars Parser 1.1.2.

You can run composer update devtheorem/php-handlebars-parser to pull in the fix.