$rules = [ 'name' => 'required', 'email' => 'required|email', 'message' => 'required|max:250', ]; $customMessages = [ 'required' => 'The :attribute field is required.' ]; $this->validate($request, $rules, $customMessages);

/** * Get the error messages for the defined validation rules. * * @return array<string, string> */
public function messages(): array
{ return [ 'title.required' => 'A title is required', 'body.required' => 'A message is required', ];
}

public function store()
{ request()->validate([ 'file' => 'required', 'type' => 'required' ], [ 'file.required' => 'You have to choose the file!', 'type.required' => 'You have to choose type of the file!' ]);
}

$messsages = [ 'email.required'=>'You cant leave Email field empty', 'name.required'=>'You cant leave name field empty', 'name.min'=>'The field has to be :min chars long', ];	$rules = [ 'email'=>'required|unique:content', 'name'=>'required|min:3',	];
$validator = Validator::make($request, $rules,$messsages);

// Validate Validator::make($rows->toArray(), [ '*.username' => 'required|string', '*.name' => 'required|string', '*.email' => 'required|email', '*.age' => 'required|integer', ],[ '*.username.required'=> "The username field is required.", '*.username.string'=> "The username must be string.", '*.name.required'=> "The name field is required.", '*.name.string'=> "The name must be string.", '*.email.required'=> "The email field is required.", '*.email.email'=> "The email must be a valid email address.", '*.age.integer'=> "The age must be an integer." ])->validate();

$rules = [ 'username' => 'required,unique:Userlogin,username', 'password' => 'required', 'email' => 'required,unique:Userlogin,email'
];
$messages = [ 'required' => 'The :attribute field is required.', 'unique' => ':attribute is already used'
];
$request->validate($rules,$messages);
//only if validation success code below will be executed

{"tags":[{"tag":"textarea","content":"public function validate_form(Request $request)\n {\n $request->validate([\n 'name'=>'required|regex:\/^[\\pL\\s\\-]+$\/u|max:50',\n 'email'=>'required|regex:\/(.+)@(.+)\\.(.+)\/i|email|max:50',\n 'gender'=>'required',\n 'age'=>'required|integer|min:1|between:1,100',\n 'occupation'=>'required',\n 'image'=>'required|mimes:jpg,jpeg,png,bmp|max:500000',\n 'date'=>'required',\n 'color'=>'required',\n 'about'=>'required|max:300',\n 'check_me'=>'required'\n ],[\n 'name.required' => __('Name is required'),\n 'name.regex' => __('Only alphabet is acceptable'),\n 'email.required' => __('Email is required'),\n 'gender.required' => __('Gender is required'),\n ]);\n }","code_language":"whatever"}]}

$this->validate([ // 1st array is field rules 'userid' =>'required|min:3|max:100', 'username' =>'required|min:3', 'password' =>'required|max:15|confirmed',
], [ // 2nd array is the rules custom message 'required' => 'The :attribute field is mandatory.'
], [ // 3rd array is the fields custom name 'userid' => 'User ID'
]);

 $validator = Validator::make( $request->all(), [ 'profile_img' => 'required|mimes:jpeg,png,jpg|max:1024' ], [ 'profile_img.mimes' => 'Profile image must be a file of type: jpeg, png, jpg.', ] ); if ($validator->fails()) { return response()->json(['status' => '0', 'error' => $validator->errors()->toArray(), 'request' => $request->all()], 422); } else { return response()->json(['status' => '1','data'=>'validation success' , 200);
} 

$rules = [ 'name' => 'required', 'email' => 'required|email', 'message' => 'required|max:250', ]; $customMessages = [ 'required' => 'The :attribute field is required.' ]; $this->validate($request, $rules, $customMessages);
//@sujay