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run code in 150+ php & hhvm versions
Bugs & Features
<?php /** * A code sample which converts odd integers to word strings and returns the sum of the common factors of even numbers. * * The input is assumed to be a random list of integers. For the sum of the common factors of even numbers * only positive values are taken into consideration */ error_reporting(E_ALL); function exception_handler($exception) { echo get_class($exception). ' : ' . $exception->getMessage(), "\n"; } set_exception_handler('exception_handler'); //start $iB = new IntelligentBee(array(6,12,48, 7, 101, 67)); //$iB->processOddNumbers(); $sum = $iB->processEvenNumbers(); echo PHP_EOL.'Sum of common factors: ' . $sum . PHP_EOL; //end class IntelligentBee{ const OneHundred = 100; const OneThousand = 1000; const OneMillion = 1000000; const OneBillion = 1000000000; protected $minCommonFactors = []; protected $oddNumbers = []; protected $evenNumbers = []; protected $startInt; protected $endInt; public function __construct(array $arrayOfIntegers){ $this->evenNumbers = range(16, self::OneMillion, 2); } public function processEvenNumbers() { $commonFactors = $this->calcFactors($this->getClosestEvenToZero($this->startInt, $this->endInt, $this->evenNumbers)); foreach($this->evenNumbers as $evenNumber){ $commonFactors = $this->checkIfHasCommonFactors($evenNumber, $commonFactors); } return array_sum($commonFactors); } protected function getClosestEvenToZero($startInt, $endInt, $evenNumbers){ $dist = abs($evenNumbers[0]); $idx = 0; $totalNo = count($evenNumbers); for($i=0;$i<$totalNo;$i++){ $newDist = abs($evenNumbers[$i]); if($newDist < $dist){ $idx = $i; $dist = $newDist; } if($dist == 0){//only if evenNumbers is sorted return $evenNumbers[$idx]; } } return $evenNumbers[$idx]; } protected function checkIfHasCommonFactors($int, array $minCommonFactors){ $int = abs($int); $cF = $this->calcFactors($int); return array_intersect($cF, $minCommonFactors); } private function calcFactors($int) { $int = abs($int); $cF = []; $max = $int/2; for($i=1;$i<=$max;$i++){ if(0 === $int%$i){ $cF[] = $i; } } $cF[] = $int; return $cF; } }
Output for hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0

Process exited with code 137.
Output for 5.4.0 - 5.6.28
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 32 bytes) in /in/TQQQS on line 43
Process exited with code 255.
Output for 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/TQQQS on line 33
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/TQQQS on line 33
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_CONST, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/TQQQS on line 29
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_CONST, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/TQQQS on line 29
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/TQQQS on line 29
Process exited with code 255.