PHP语句，$地图['sex'] = "男“ 或者等于女如何写

PHP语句，$map['sex'] = "男“ 或者等于女怎么写
PHP语句，$map['sex'] = "男“ 或者等于女 怎么写
------解决方案--------------------

if($map['sex'] = "男" 
------解决方案--------------------
 $map['sex'] = "女")