Yes, that's basically what I sent him as an example. I think the
ext/standard/array.c is a good place to look for this information too.
Fab.
----- Original Message -----
From: "Rasmus Lerdorf" <[EMAIL PROTECTED]>
To: "Eric Veldhuyzen" <[EMAIL PROTECTED]>
Cc: "fabwash" <[EMAIL PROTECTED]>; "Markus Fischer"
<[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Thursday, June 06, 2002 10:26 AM
Subject: Re: [PHP-DEV] How do I access a hash from an extention/module?
> > Well, I think you might be able to help me then. I want to retrieve an
> > array and walk throught it. Should be pretty simple, right?
>
> Think of which PHP functions do this and go have a look. Basically think
> of how you do it in PHP at the low level. You would do something like
> this:
>
> reset($arr);
> while($val=current($arr)) {
> $key = key($arr);
> ... do something with $key and $val ...
> next($arr);
> }
>
> Now, obviously this has a slight problem of $val evaluating to false, but
> it is more to explain the steps.
>
> Now here is the C equivalent:
>
> zval **arr,**val;
> char *key;
> ulong num_key;
> HashTable *target_hash;
> HashPosition pos;
>
> target_hash = HASH_OF($arr);
> zend_hash_internal_pointer_reset_ex(target_hash, &pos);
> while(zend_hash_get_current_data_ex(target_hash, (void **)&val, &pos) ==
SUCCESS) {
> type = zend_hash_get_current_key_ex(target_hash, &string_key,
&str_key_len, &num_key, 0, &pos);
>
> // type will be HASH_KEY_IS_STRING for a string key, and
string_key/str_key_len are set
> // or type will be HASH_KEY_IS_LONG and num_key will be set
> // Now you have a normal zval** with the value and the key in either
of string_key or num_key
>
> zend_hash_move_forward_ex(target_hash, &pos);
> }
>
> That's all.
>
> -Rasmus
>
>
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