Initial Commit

.gitignore

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+vendor/*
+composer.lock
+.idea/*

Test/TestStack.php

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+<?php
+/**
+ * Created by PhpStorm.
+ * User: dean
+ * Date: 27/05/17
+ * Time: 10:18
+ */
+
+use PHPUnit\Framework\TestCase;
+
+class TestStack extends TestCase
+{
+
+}

composer.json

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+{
+  "autoload" : {
+    "psr-4" : {
+      "App\\" : "src"
+    }
+  },
+  "require-dev": {
+    "phpunit/phpunit": "~5.7.17",
+    "php" : "5.6.30"
+  }
+}

index.php

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+<?php
+
+use App\stack;
+
+require "vendor/autoload.php";
+
+$stack = new \App\stack();
+
+$stack->add('123');
+$stack->add('abc');
+$stack->add('555');
+
+print_r($stack);
+print_r($stack->remove());
+print_r($stack->remove());
+print_r($stack);
+
+$stack->add('new wave');
+print_r($stack);
+
+

src/stack.php

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+<?php
+/**
+ * Author: Dean Haines
+ * Date: 27/05/17
+ */
+
+namespace App;
+
+use App\stackNode;
+
+/**
+ * Class stack
+ * @package App
+ */
+class stack
+{
+
+    protected $count;
+    protected $list;
+
+
+    /**
+     * stack constructor.
+     */
+    public function __construct()
+    {
+        $this->list = [];
+        $this->count = 0;
+    }
+
+    /**
+     * @param $data
+     */
+    public function add($data)
+    {
+        $item = new stackNode($data);
+        $this->insert($item);
+
+    }
+
+    /**
+     * @param \App\stackNode $item
+     */
+    protected function insert(stackNode $item)
+    {
+        array_push($this->list,$item);
+        $this->count++;
+    }
+
+
+    /**
+     * @return int
+     */
+    public function getCount()
+    {
+        return $this->count;
+    }
+
+    /**
+     * @return mixed
+     */
+    public function remove()
+    {
+        $temp = $this->list[0];
+        unset($this->list[0]);
+        $this->list = array_values($this->list);
+
+        $this->count--;
+        return $temp;
+    }
+
+}

src/stackNode.php

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+<?php
+/**
+ * Created by PhpStorm.
+ * User: dean
+ * Date: 27/05/17
+ * Time: 09:44
+ */
+
+namespace App;
+
+
+class stackNode
+{
+
+    protected $item;
+
+    /**
+     * stackNode constructor.
+     * @param $item
+     */
+    public function __construct($item)
+    {
+        $this->item = $item;
+        return $this->item;
+    }
+}