Principle and implementation method of PHP singleton mode

This article mainly introduces the PHP singleton mode. The examples analyze the principles and implementation techniques of the singleton mode. It has certain reference value. Friends in need can refer to it.

The examples in this article describe the PHP singleton mode. Example pattern implementation method. The details are as follows:

<?php
/**
 * @copyright 2013 maguowei.com
 * @author Ma Guowei <imaguowei@gmail.com>
 */
/**
 * 单例模式
 * Class Single
 */
class Single
{
  private $name;
  private static $single;
  private function __construct()
  {
  }
  public static function init()
  {
    if(empty(self::$single))
    {
      self::$single = new Single();
    }
    return self::$single;
  }
  public function getName()
  {
    return $this->name;
  }
  public function setName($name)
  {
    $this->name = $name;
  }
}
$s = Single::init();
$s->setName(&#39;hhhh&#39;);
echo &#39;$s:&#39;.$s->getName();
unset($s);
$m = Single::init();
echo &#39;$m:&#39;.$m->getName();

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