Custom Helpers
Create a helper file
// app/Support/helpers.php function money(int $cents): string { return number_format($cents / 100, 2); }
Autoload
Add to composer.json :
{ "autoload": { "files": ["app/Support/helpers.php"] } }
Run composer dump-autoload .
Guidelines
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Keep helpers small and pure; avoid hidden IO/state
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Prefer static methods on value objects when domain-specific