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@ 2019-03-27T01:43:18Z

<?php
$data="musisz odpowiedziec w ciagu 280 sekund: 88+67=?musisz odpowiedziec w ciagu 280 sekund: 88+67=?musisz odpowiedziec w ciagu 280 sekund: 88+67=?";
                    $rret = preg_match('/((\d+)(\+|\-|\*)(\d+))\s*\=\s*\?/', $data, $matches);
                    if ($rret !== 1) {
                        throw new \LogicException("ERROR: COULD NOT EXTRACT MATH QUESTION!");
                    }
                    $left = (int)$matches[2];
                    $operator = $matches[3];
                    $right = (int)$matches[4];
                    $answer = null;
                    switch ($operator) {
                        case "+":
                            {
                                $answer = $left + $right;
                                break;
                            }
                        case "*":
                            {
                                $answer = $left * $right;
                                break;
                            }
                        case "-":
                            {
                                $answer = $left - $right;
                                break;
                            }
                        default:
                            {
                                throw new \LogicException("UNKNOWN OPERATOR: {$operator}");
                            }
                    }
                    echo "question parsed: answer: \"{$answer}\" left: \"{$left}\" operator: \"{$operator}\" right: \"{$right}\"\n";

Output for git.master, git.master_jit, rfc.property-hooks: question parsed: answer: "155" left: "88" operator: "+" right: "67"

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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