[PHP技術(shù)群: 159789818](https://shang.qq.com/wpa/qunwpa?idkey=c25dbd4e063d339786ca5b1458b0ff1ef4f863dd3534a04017d9baf728372026) 群里邊見好幾個(gè)群友問(wèn)過(guò)這個(gè)問(wèn)題，在此記錄下 #### 1. 代碼示例 --- ```php <?php $a = '群主最帥'; $b = &$a; unset($a); echo $b;//群主最帥 ``` #### 2. 步驟圖解 ---