Core

Actually the impact is around factor 2.5 not 3 to 5 but still it should be worth switching from intval() to (int).

There is one execpetion though, which is the "base" parameter of the intval() function.
Don't know yet, if this is actually used within the TYPO3 core, but if it is, then intval() should not be replaced.

Hi! Thanks for fiddling around with this.

Before we invest that much time here (the replacement with a regexp is fast, but the review is very cumbersome), we'd discuss this on the core list first.
I've a gut feeling that not too many devs will support this and therefor it might be hard to get it merged finally.

Cheers Markus

We discuessed this shortly on the release team meeting as we are concepting the performance improvements.

We are in - but need to make sure that it's really the same :)

Hi joey,

in general: great idea.
I suggest changing the topic to "replace intval() with (int) where it makes sense" in order to make it sound less ranty

So I will go for it but do it the "semiautomatic" way.

It might take a bit more patchsets than #54085 but IMHO it was working quite well to have a limited number of changes per patchset. So reviewing will be easier and discussing can happen on the way through the patchsets. After all there might be less context related things to discuss than with strcmp().

BTW: According to some PHP benchmarking pages I have some more candidates like array_unique or array_key_exists on my list. So if you guys already found some others, feel free to assign the tasks to me.

Please correct me, but I may read that we want to use (integer) instead of (int). Same with (boolean) instead of (bool). I think we should use the same style everywhere.

Agreed to use the same style, but in that case it should be (int) and (bool) for everything, since these are less "bloaty" while still easily understandable.

Please see current thread on the core-mailinglist about CGL-decisions like these ("integer or int"). There is a notes-document to sum up decisions, their pros/cons etc.

So could someone take care of that document and confirm one or the other way.
https://notes.typo3.org/p/CGL-decisions

It's not necessary to decide everything but at least the (bool) (int) vs. (boolean) (integer) thingie should be decided before I go on with this task.

Patch set 2 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/26740

Patch set 3 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/26740

Patch set 4 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/26740

Patch set 5 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/26740

Patch set 6 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/26740

Patch set 7 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/26740

Patch set 8 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/26740

Patch set 9 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/26740

Patch set 10 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/26740

Patch set 11 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/26740

Patch set 12 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/26740

Patch set 13 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/26740

Patch set 14 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/26740

Patch set 15 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/26740

Core decision as from today: it should be written (int)$variable

Patch set 16 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/26740

Patch set 17 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/26740

Patch set 18 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/26740

What are the (php internal?) differences between intval() and a (int) typecast?

Is it only that intval() takes a base argument (defaulting to 10) and the difference in speed or are there other specialities?

Could someone point me to a document on that case?

It's exactly that: A difference in speed and memory consumption.

The rule of thumb is:

1. The right operator or typecast is better than
2. the right native function is better than
3. your own optimized method for the same purpose

So as long as there is no need for a different base, you should do a typecast to (int) instead of intval().

This might be irrelevant with future PHP versions, since the PHP guys might improve performance as well, but still we can be sure that the function call will never outperform the typecast.

http://www.php.net/manual/de/language.types.type-juggling.php
http://www.php.net/manual/de/language.types.integer.php#language.types.integer.casting

<quote>
To explicitly convert a value to integer, use either the (int) or (integer) casts. However, in most cases the cast is not needed, since a value will be automatically converted if an operator, function or control structure requires an integer argument. A value can also be converted to integer with the intval() function.
</quote>

Patch set 19 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/26740

Patch set 20 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/26740

Patch set 21 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/26740

Patch set 22 for branch master of project Packages/TYPO3.CMS has been pushed to the review server.
It is available at https://review.typo3.org/26740

can somebody please share the script how to do that automatically or was everything done manually? I want to use that for my own extensions as well!

This was done manually, since I wanted to take care of surrounding issues as well, which would have been impossible with an automated search and replace.
The goal was to get rid of superfluous method calls and typecasts additionally. So the only helper was PHPstorm to find the occurrences and provide a local history of the changes.