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Laravel中的Helper方法是用来创建自定义的方法，也称为辅助方法。在之前我不太热衷于创建自定义函数，随着时间流转，我开始越来越频繁的使用它们。文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/23155.html
什么是Laravel助手文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/23155.html
Laravel框架中的Helper方法其实就是普通的PHP函数，开发者可以从Laravel应用程序的任何部分来调用它，比如我们已经在该框架中使用内置的route(),url(),view(),dd()等方法一样，不需要引用任何PHP文件或者声明任何namespace来使用，如同奇迹般，他们可以在你的应用程序中的任何部件中使用。文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/23155.html
接下来，我开始讲述用于自定义创建辅助方法的用例。如果代码中多次使用了通用逻辑，可以把它们提取到辅助方法中。文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/23155.html
我常在Blade视图中使用辅助方法来简化格式设置，例如在数字前添加货币符号，或者在特定的数字中格式化显示，以及在应用程序中设置人性化的日期等。文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/23155.html
创建自定义辅助方法文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/23155.html
在Laravel中，在app目录中创建一个文件，然后通过composer让应用程序启动时自动加载。创建自定义辅助方法并非易事，在我的经验中，将功能放在Helps.php中，然后将该文件放在app/Utils下，实用程序工具类，你可以根据自身情况在app中任何目录都可以。文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/23155.html
接下来，需要将该文件登记到位于composer.json，这个在项目根目录的文件中。文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/23155.html{ "name": "laravel/framework", "description": "The Laravel Framework.", "keywords": ["framework", "laravel"], "license": "MIT", "homepage": "https://laravel.com", "support": { "issues": "https://github.com/laravel/framework/issues", "source": "https://github.com/laravel/framework" }, "authors": [ { "name": "Taylor Otwell", "email": "taylor@laravel.com" } ], "require": { "php": "^7.2.5", "ext-json": "*", "ext-mbstring": "*", "ext-openssl": "*", "doctrine/inflector": "^1.4|^2.0", "dragonmantank/cron-expression": "^2.0", "egulias/email-validator": "^2.1.10", "league/commonmark": "^1.3", "league/flysystem": "^1.0.8", "monolog/monolog": "^2.0", "nesbot/carbon": "^2.17", "opis/closure": "^3.1", "psr/container": "^1.0", "psr/simple-cache": "^1.0", "ramsey/uuid": "^3.7|^4.0", "swiftmailer/swiftmailer": "^6.0", "symfony/console": "^5.0", "symfony/error-handler": "^5.0", "symfony/finder": "^5.0", "symfony/http-foundation": "^5.0", "symfony/http-kernel": "^5.0", "symfony/mime": "^5.0", "symfony/polyfill-php73": "^1.17", "symfony/process": "^5.0", "symfony/routing": "^5.0", "symfony/var-dumper": "^5.0", "tijsverkoyen/css-to-inline-styles": "^2.2.2", "vlucas/phpdotenv": "^4.0", "voku/portable-ascii": "^1.4.8" }, "replace": { "illuminate/auth": "self.version", "illuminate/broadcasting": "self.version", "illuminate/bus": "self.version", "illuminate/cache": "self.version", "illuminate/config": "self.version", "illuminate/console": "self.version", "illuminate/container": "self.version", "illuminate/contracts": "self.version", "illuminate/cookie": "self.version", "illuminate/database": "self.version", "illuminate/encryption": "self.version", "illuminate/events": "self.version", "illuminate/filesystem": "self.version", "illuminate/hashing": "self.version", "illuminate/http": "self.version", "illuminate/log": "self.version", "illuminate/mail": "self.version", "illuminate/notifications": "self.version", "illuminate/pagination": "self.version", "illuminate/pipeline": "self.version", "illuminate/queue": "self.version", "illuminate/redis": "self.version", "illuminate/routing": "self.version", "illuminate/session": "self.version", "illuminate/support": "self.version", "illuminate/testing": "self.version", "illuminate/translation": "self.version", "illuminate/validation": "self.version", "illuminate/view": "self.version" }, "require-dev": { "aws/aws-sdk-php": "^3.0", "doctrine/dbal": "^2.6", "filp/whoops": "^2.4", "guzzlehttp/guzzle": "^6.3.1|^7.0", "league/flysystem-cached-adapter": "^1.0", "mockery/mockery": "^1.3.1", "moontoast/math": "^1.1", "orchestra/testbench-core": "^5.0", "pda/pheanstalk": "^4.0", "phpunit/phpunit": "^8.4|^9.0", "predis/predis": "^1.1.1", "symfony/cache": "^5.0" }, "conflict": { "tightenco/collect": "<5.5.33" }, "autoload": { "files": [ "src/Illuminate/Foundation/helpers.php", "src/Illuminate/Support/helpers.php" ], "psr-4": { "Illuminate\\": "src/Illuminate/" } }, "autoload-dev": { "files": [ "tests/Database/stubs/MigrationCreatorFakeMigration.php" ], "psr-4": { "Illuminate\\Tests\\": "tests/" } }, "extra": { "branch-alias": { "dev-master": "7.x-dev" } }, "suggest": { "ext-gd": "Required to use Illuminate\\Http\\Testing\\FileFactory::image().", "ext-memcached": "Required to use the memcache cache driver.", "ext-pcntl": "Required to use all features of the queue worker.", "ext-posix": "Required to use all features of the queue worker.", "ext-redis": "Required to use the Redis cache and queue drivers (^4.0|^5.0).", "aws/aws-sdk-php": "Required to use the SQS queue driver, DynamoDb failed job storage and SES mail driver (^3.0).", "doctrine/dbal": "Required to rename columns and drop SQLite columns (^2.6).", "filp/whoops": "Required for friendly error pages in development (^2.4).", "fzaninotto/faker": "Required to use the eloquent factory builder (^1.9.1).", "guzzlehttp/guzzle": "Required to use the HTTP Client, Mailgun mail driver and the ping methods on schedules (^6.3.1|^7.0).", "laravel/tinker": "Required to use the tinker console command (^2.0).", "league/flysystem-aws-s3-v3": "Required to use the Flysystem S3 driver (^1.0).", "league/flysystem-cached-adapter": "Required to use the Flysystem cache (^1.0).", "league/flysystem-sftp": "Required to use the Flysystem SFTP driver (^1.0).", "mockery/mockery": "Required to use mocking (^1.3.1).", "moontoast/math": "Required to use ordered UUIDs (^1.1).", "nyholm/psr7": "Required to use PSR-7 bridging features (^1.2).", "pda/pheanstalk": "Required to use the beanstalk queue driver (^4.0).", "phpunit/phpunit": "Required to use assertions and run tests (^8.4|^9.0).", "psr/http-message": "Required to allow Storage::put to accept a StreamInterface (^1.0).", "pusher/pusher-php-server": "Required to use the Pusher broadcast driver (^4.0).", "symfony/cache": "Required to PSR-6 cache bridge (^5.0).", "symfony/filesystem": "Required to create relative storage directory symbolic links (^5.0).", "symfony/psr-http-message-bridge": "Required to use PSR-7 bridging features (^2.0).", "wildbit/swiftmailer-postmark": "Required to use Postmark mail driver (^3.0)." }, "config": { "sort-packages": true }, "minimum-stability": "dev", "prefer-stable": true}
接下来，运行composer dump-autoload并重新启动应用程序，这样确保Helpers.php在Laravel启动时加载。文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/23155.html
这样，你可以在Helpers.php中创建一个方法，然后在应用程序中访问调用此方法。文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/23155.html
小结文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/23155.html
Laravel 框架中的Helpers是一个非常方便且强大的功能，能够帮助开发者节约大量时间，这也是本文分享的初衷，希望更多人使用和创建自定义方法。文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/23155.html
Happy Coding:)文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/23155.html
参考资源：文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/23155.html
https://laravel.com/docs/7.x/helpers文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/23155.html
https://laravel.com/docs/7.x/facades#facades-vs-helper-functions文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/23155.html
文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/23155.html作者：晓明文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/23155.html 来源：21CTO社区文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/23155.html