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Smarty
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Biggerskimo
Smarty n00b
Joined: 23 Jul 2011
Posts: 1
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 Posted: Sat Jul 23, 2011 11:54 pm Post subject: Foreach does not work with instances of IteratorAggregate |
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I implemented a class with the IteratorAggregate-Interface:
| Code: |
<?php
class Foo implements IteratorAggregate
{
private $bar = array('abc', 'bcd', 'cde');
public function getIterator()
{
return new ArrayIterator($this->bar);
}
}
$foo = new Foo();
foreach($foo as $value)
{
echo $value; // prints "abcbcdcde"
}
echo count($foo); // prints "0"!
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With Smarty I tried the following:
| Code: |
{foreach from=$foo item='value'}{$value}{/foreach}
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Unfortunately this doesnt print anything. It looks like smarty compiles this to something like
| Code: |
<?php
if(count($foo) > 0)
{
foreach($foo as $value)
{
echo $value;
}
}
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Since count($foo) is 0 it will not give you the expected result.
Used Version: 3.0.8 with PHP 5.3.5. |
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rodneyrehm
Administrator
Joined: 30 Mar 2007
Posts: 674
Location: Germany, border to Switzerland
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| Posted: Sun Jul 24, 2011 9:27 am Post subject: |
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Your count($foo) is actually $_smarty_tpl->_count($foo). There you'll find a wrapper to handle all sorts of objects. Just not IteratorAggregate. Smarty 3.1 will also handle IteratorAggregate.
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