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Laravel Routing: Route Parameters
Route Parameters
Are always encased within {} braces and should consist of alphabetic characters, and may not contain a - character. Instead of using the - character, use an underscore (_).
Are injected into route callbacks / controllers based on their order - the names of the callback / controller arguments do not matter.
Required Parameters
Syntax
Route::get('user/{id}', function ($id) {
return 'User '.$id;
});Syntax
Route::get('posts/{post}/comments/{comment}', function ($postId, $commentId) {
//
});Optional Parameters
Syntax
Route::get('user/{name?}', function ($name = null) {
return $name;
});
Route::get('user/{name?}', function ($name = 'John') {
return $name;
});Regular Expression Constraints
Syntax
Route::get('user/{name}', function ($name) {
//
})->where('name', '[A-Za-z]+');
Route::get('user/{id}', function ($id) {
//
})->where('id', '[0-9]+');
Route::get('user/{id}/{name}', function ($id, $name) {
//
})->where(['id' => '[0-9]+', 'name' => '[a-z]+']);