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Date: Thu, 20 Dec 2012 10:31:39 -0600
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Subject: Re: [PHP-DEV] Extension for str_replace / preg_replace with arrays
From: larry@garfieldtech.com (Larry Garfield)

On 12/19/12 10:30 PM, Christopher Jones wrote:
>
>
> On 12/19/2012 03:18 PM, Larry Garfield wrote:
>> You could likely simplify the code even further using an infinite
>> iterator:
>>
>> http://us1.php.net/infiniteiterator
>>
>> $result = preg_replace_callback(
>>      '/word/',
>>      function($matches) use (&$replacements_iterator) {
>>          return $replacements->next();
>>      },
>>      'word word word word word'
>> );
>>
>> --Larry Garfield
>>
>
> What am I missing that causes the first call to
> $replacements_iterator->current() to return NULL
> unless the iterator is rewound before use?

Eh, nothing.  You're right, next() doesn't return an element, it just 
advances, so you still need the current() call.  Which seems kinda silly 
to me, but whatev.

--Larry Garfield