laravel new validation rule code example

Example 1: custom rule laravel validation

public function store()
{
    $this->validate(request(), [
        'song' => [function ($attribute, $value, $fail) {
            if ($value <= 10) {
                $fail(':attribute needs more cowbell!');
            }
        }]
    ]);
}

Example 2: laravel validation rules

Accepted
Active URL
After (Date)
After Or Equal (Date)
Alpha
Alpha Dash
Alpha Numeric
Array
Bail
Before (Date)
Before Or Equal (Date)
Between
Boolean
Confirmed
Date
Date Equals
Date Format
Different
Digits
Digits Between
Dimensions (Image Files)
Distinct
Email
Ends With
Exclude If
Exclude Unless
Exists (Database)
File
Filled
Greater Than
Greater Than Or Equal
Image (File)
In
In Array
Integer
IP Address
JSON
Less Than
Less Than Or Equal
Max
MIME Types
MIME Type By File Extension
Min
Multiple Of
Not In
Not Regex
Nullable
Numeric
Password
Present
Regular Expression
Required
Required If
Required Unless
Required With
Required With All
Required Without
Required Without All
Same
Size
Sometimes
Starts With
String
Timezone
Unique (Database)
URL
UUID

Example 3: laravel validation types

# <values> = foo,bar,...
# <field> = array field
# <characters> = amount of characters

# accepted					           # active_url
# after:<tomorrow>			           # after_or_equal:<tomorrow>
# alpha						           # alpha_dash
# alpha_num					           # array
# bail 					               # before:<today>
# before_or_equal:<today>              # between:min,max
# boolean					           # confirmed
# date						           # date_equals:<today>
# date_format:<format> 		           # different:<name>
# digits:<value>			           # digits_between:min,max
# dimensions:<min/max_with>	           # distinct
# email						           # ends_with:<values>
# exclude_if:<field>,<value>           # exclude_unless:<field>,<value>
# exists:<table>,<column>	           # file
# filled					           # gt:<field>
# gte:<field>				           # image
# in:<values>				           # in_array:<field>
# integer					           # ip
# ipv4                                 # ipv6  
# json						           # lt:<field>
# lte:<field>       		           # max:<value>
# mimetypes:video/avi,...	           # mimes:jpeg,bmp,png
# min:<value>				           # not_in:<values>
# not_regex:<pattern> 		           # nullable
# numeric					           # password:<auth guard>
# present					           # regex:<pattern>
# required					           # required_if:<field>,<value>
# required_unless:<field>,<value>      # required_with:<fields>
# required_with_all:<fields>	       # required_without:<fields>
# required_without_all:<fields>        # same:<field>
# size:<characters>			           # starts_with:<values>
# string						       # timezone
# unique:<table>,<column>		       # url
# uuid

Example 4: rule::exists with custom message laravel

$messsages = array(
		'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 = array(
		'email'=>'required|unique:content',
		'name'=>'required|min:3',
	);

	$validator = Validator::make(Input::all(), $rules,$messsages);