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" 
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 $map['sex'] = "女")

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$map['sex'] = "男“
------解决方案--------------------
$map['sex'] = "女“