Online PHP editor | rfc for 1WgpU

@ 2014-05-06T11:26:53Z

<?php

//Simple math class
class Staircase
{
	function __construct($numberOfSteps) {
		$this->numberOfSteps = $numberOfSteps;
	}
//Returns a closure
	function buildingNumberOfSteps()
	{
		//We can't directly use $this inside closure
		$thisCopy = $this;
		return function($storeysNumber) use ($thisCopy)
			{
				return $storeysNumber*$thisCopy->numberOfSteps;
			};
	}
	
	function buildingNumberOfStepsIncludingBasement()
	{
		return function($storeysNumber) 
			{
				return ($storeysNumber + 1)*$this->numberOfSteps;
			};
	}
}

$staircase = new Staircase(25);
$numberOfStepsToReachRoofTopFromGround 	 = $staircase->buildingNumberOfSteps();
$numberOfStepsToReachRoofTopFromBasement = $staircase->buildingNumberOfStepsIncludingBasement();

echo "5.3 <= PHP < 5.4 only allows me to climb from the ground... the ".$numberOfStepsToReachRoofTopFromGround(5)." steps :( ... ";
echo "but with PHP >= 5.4 I can make my way from the basement to the top, climbing the ".$numberOfStepsToReachRoofTopFromBasement(5)." steps ! :D";
?>

Output for git.master, git.master_jit, rfc.property-hooks: Deprecated: Creation of dynamic property Staircase::$numberOfSteps is deprecated in /in/1WgpU on line 7 5.3 <= PHP < 5.4 only allows me to climb from the ground... the 125 steps :( ... but with PHP >= 5.4 I can make my way from the basement to the top, climbing the 150 steps ! :D

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