Email validation in laravel controller code example

Example 1: email validation in laravel

'email' => 'required|email|unique:users,email',
//@sujay

Example 2: 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 3: username or email validation in laravel

$input = $request->only('account'); // dont use all(), ever
            
$rules = [
  'account' => 'required'
];

if (filter_var($input['account'], FILTER_VALIDATE_EMAIL)) {

  $rules['account'] .= '|exists:users,email';

} else {

  $rules['account'] .= '|exists:users,username';

}

$messages = [
  'account.required' => 'Enter username or email to login.',                
];

$validator = Validator::make($input, $rules, $messages);