laravel 添加helper文件

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一、确定文件位置

假如 文件所在位置在 app/Common/Helpers/function.php

二、在composer.json的加载栏添加自动加载

....
    "autoload": {
    
        "psr-4": {
    
            "App\\": "app/"
        },
        "classmap": [
            "database/seeds",
            "database/factories"
        ],
        "files" : [
            "app/Common/Helpers/function.php"
        ]
    },
....

三、执行加载

composer dump-autoload