Online PHP editor | perf for p5unj

<?php class ShopProduct { public $discount = 0; public $title; public $producerMainName; public $producerFirstName; protected $price; function __construct($title, $firstName, $mainName, $price) { $this->title = $title; $this->producerFirstName = $firstName; $this->producerMainName = $mainName; $this->price = $price; } function getSummaryLine(){ $base = "{$this->title} ( {$this->producerMainName}, "; $base .= "{$this->producerFirstName} )"; return $base; } function getProducer() { return "{$this->producerFirstName} " . "{$this->producerMainName}"; } function setDiscount(){ $this->discount=$num; } public function getPrice() { # code... return ($this->price - $this->discount); } } class ShopProductWriter(){ private $products = array(); public function addProduct( ShopProduct $shopProduct){ $this->product[] = $shopProduct; } public function write(){ $str = ""; foreach ($this->products as $shopProduct) { $str .= "{$shopProduct->title}: "; $str .= "{$shopProduct->getProducer()}"; $str .= "{$shopProduct->getPrice()}\n"; } print $str; } } class CDProduct extends ShopProduct { public $playLength; function __construct($title, $firstName, $mainName, $price, $playLength){ parent::__construct($title, $firstName, $mainName, $price); $this->playLength = $playLength; } function getPlayLength(){ return $this->playLength; } function getSummaryLine(){ $base = parent::getSummaryLine(); $base .= " :Legth of song {$this->playLength}"; return $base; } } class BookProduct extends shopProduct{ public $numPages; function __construct($title, $firstName, $mainName, $price, $numPages){ parent::__construct($title, $firstName, $mainName, $price); $this->playLength = $playLength; } function getSummaryLine(){ $base = parent::getSummaryLine(); $base .= ": Number of pages - {$this->numPages}"; } function getProducer() { return "{$this->producerFirstName} " . "{$this->producerMainName}"; } function getPrice(){ return $this->price; } } $product2 = new CDProduct("On my own", "Ashes", "Remain", 10.99, 2.53); $product3 = new CDProduct("On my own", "Ashes", "Remain", 10.99, 2.53); $product4 = new CDProduct("On my own", "Ashes", "Remain", 10.99, 2.53); $product5 = new CDProduct("On my own", "Ashes", "Remain", 10.99, 2.53); print write();

Version	System time (s)	User time (s)	Memory (MiB)
7.0.2	0.027	0.050	20.27
7.0.1	0.010	0.087	20.23
7.0.0	0.007	0.040	20.07
5.6.17	0.030	0.050	20.56
5.6.16	0.003	0.090	20.71
5.6.15	0.010	0.073	18.27
5.6.14	0.007	0.047	18.18
5.6.13	0.007	0.057	18.21
5.6.12	0.013	0.080	21.00
5.6.11	0.013	0.083	21.02
5.6.10	0.013	0.073	21.03
5.6.9	0.013	0.077	21.01
5.6.8	0.003	0.067	20.36
5.5.31	0.023	0.080	20.32
5.5.30	0.003	0.043	18.04
5.5.29	0.000	0.050	17.95
5.5.28	0.000	0.050	20.66
5.5.27	0.013	0.043	20.90
5.5.26	0.003	0.080	20.70
5.5.25	0.003	0.073	20.63
5.5.24	0.030	0.060	20.13