Context.php

Go to the documentation of this file.

<?php
namespace Elgg;

final class Context {
    
    private $stack = array();
    
    public function peek() {
        $last = end($this->stack);
        return ($last === false) ? null : $last;
    }
    
    public function push($context) {
        $this->stack[] = "$context";
    }
    
    public function pop() {
        return array_pop($this->stack);
    }
    
    public function set($context) {
        $context = trim($context);

        if (empty($context)) {
            return false;
        }

        $context = strtolower($context);

        $this->pop();
        $this->push($context);

        return true;
    }

    public function contains($context) {
        return in_array($context, $this->stack);
    }

    public function toArray() {
        return $this->stack;
    }

    public function fromArray(array $stack) {
        $this->stack = array_map('strval', $stack);
    }
}