Finally, PHP 5.5 may appear.

Not so long ago, Nikita Popov, one of the activists of the movement "FOR PHP", posted a message on his twitter:

PHP 5.5 will have finally t.co/Dy93CZaR

(The original is here twitter.com/nikita_ppv/status/232930291625369600 )

Further, free translation:

Representation

In this release of the RFC, we will try to introduce you to support for the new " finally " keyword in exceptions.
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Without this feature, developers often have to write constructions of the form:

<?php $db = mysqli_connect(); try { call_some_function($db); } catch (Exception $e) { mysqli_close($db); throw $e; } mysql_close($db);

With the introduction of finally , we do not say that you have to write less code, we say that you will get more opportunities to manage try / catch structures

Sentence

The finally block is always executed when the try / catch block is completed.
This means that the finally block is executed even if an exception has been thrown. Finally , however, is actually more useful than simple exception handling. It allows programmers to avoid unnecessary constructions for cleaning memory and / or connections at the time of exception handling or if they were not caught.

 <?php $db = mysqli_connect(); try { call_some_function($db);//    ,       } finally { mysqli_close($db); }

The delicate moment when using a new construct is to use the return construct in a try / catch block ; in this case, the finally block will still be called.

 <?php try { return 2; } finally { echo "   \n"; } //    echo "    ";

the result will be:


//return int(2)

Well, in the case of nested try / catch / finally constructs :

 <?php function foo ($a) { try { echo "1"; try { echo "2"; throw new Exception("ex"); } catch (Exception $e) { echo "3"; } finally { echo "4"; throw new Exception("ex"); } } catch (Exception $e) { echo "3"; } finally { echo "2"; } return 1; } var_dump(foo("para"));

we will receive:

123432int(1)

Tests and Examples

Source: https://habr.com/ru/post/149314/

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Finally, PHP 5.5 may appear.

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Tests and Examples

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