[5.2] Remove call_user_func()

[Denitz]

Summary of Changes

Remove call_user_func() in favour of direct call which is faster.

Testing Instructions

Apply patch.

Actual result BEFORE applying this Pull Request

Slow call_user_func() call on form field filter.

Expected result AFTER applying this Pull Request

Fast call.

Link to documentations

Please select:

• Documentation link for docs.joomla.org:

• No documentation changes for docs.joomla.org needed

• Pull Request link for manual.joomla.org:

• No documentation changes for manual.joomla.org needed

[HLeithner]

This pull request has been automatically rebased to 5.1-dev.

[HLeithner]

This pull request has been automatically rebased to 5.2-dev.

[mabdelaziz77]

I have tested this item ✅ successfully on 38bed88

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[pe7er]

I have tested this item ✅ successfully on 38bed88

I tested the PR successfully.

I tested the speed using microtime and hrtime
microtime
Before 0.54661
After 0.060788

hrtime
Before 0.002111 miliseconds
After 0.001321 miliseconds

$start = hrtime(true);
// the statement
$end = hrtime(true);
$eta = ($end-$start) / 1e+6;

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[richard67]

@pe7er For setting RTC it is not enough to just add the label on GitHub. It needs to change status in the issue tracker. I will do that now.

P.S.: And changing just the branch label is also not right as it depends on the base branch, which is still 5.2-dev here.

[richard67]

RTC

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[Hackwar]

Thank you for this contribution! 😃