Re: Silly question - include vs. eval
| From: | Shawn McKenzie | Date: | Wed, 11 Mar 2009 21:09:29 +0000 |
| Subject: | Re: Silly question - include vs. eval | ||
| References: | 1 2 3 4 5 6 7 8 9 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-289900@lists.php.net to get a copy of this message | ||
Robert Cummings wrote:
> On Wed, 2009-03-11 at 13:20 -0500, Shawn McKenzie wrote:
>> Robert Cummings wrote:
>>> On Wed, 2009-03-11 at 12:19 -0500, Shawn McKenzie wrote:
>>>> Sándor Tamás (HostWare Kft . ) wrote:
>>>>> Yes, Rob is right. My original question is about the difference between
>>>>> the processing of a file-based site with include() OR eval(). In that
>>>>> case, if I understood it correctly, the results are the same.
>>>>>
>>>>> But! If the included pages contain functions, classes, etc. With eval(),
>>>>> can I use them? With include(), I know I should be able to use them. But
>>>>> in some mysterious cases I don't have access to a function. If I cut out
>>>>> from the included file, and put in on the file which includes that, just
>>>>> before (or after) the includ(), I don't have any problem with it.
>>>>>
>>>>> The next step, that if I include a file in a function, can I use the
>>>>> functions wrote in the included file?
>>>>> As I know, include just makes a copy-paste, so if I use it IN a
>>>>> function, then all function will be in function scope, am I right?
>>>> Yes, if you use an include inside a function, then any functions / non
>>>> global vars in the included file will only be available inside the
>>>> including function.
>>> This is NOT, I repeat, NOT true for functions. Functions are ALWAYS
>>> global.
>>>
>>> Cheers,
>>> Rob.
>> Yes, I was too hasty. The nested function will only be defined once the
>> nesting function has been called. Then it will be available globally.
>
> Actually, you're wrong again. The nested function, AKA function defined
> in the included source, will be defined as soon as the source is
> included and is available to the function in which the source was
> included. In fact it is even available to the code within the included
> source that can be run during the include process and before the
> function performing the inclusion regains control.
>
> Cheers,
> Rob.
Well I used the word defined, however what I meant was the included
function would only be available globally after the including function
has been called. But yes, it will be available to the including function.
--
Thanks!
-Shawn
http://www.spidean.com