If don't exist key json php

<?php
$search_array = array('first' => 1, 'second' => 4);
if (array_key_exists('first', $search_array)) {
    echo "The 'first' element is in the array";
}
?>

Source: php.net

Similar codes

1 vote138 views1 answer
Laravel plural
PHP
0 vote190 views1 answer
Merge Cell phpoffice phpexcel
PHP
0 vote129 views1 answer
Custom timestamp column laravel
PHP
3 votes125 views2 answers
Laravel drop column softdeletes
PHP
0 vote182 views1 answer
How to check current URL inside @if statement in Laravel
PHP Laravel
0 vote162 views1 answer
Get deleted value laravel
PHP Laravel
0 vote196 views1 answer
Dummy data in laravel
PHP Laravel
9 votes145 views2 answers
Array_diff
PHP
10 votes134 views4 answers
Unset php
PHP
0 vote180 views1 answer
Codeigniter form open
PHP CodeIgniter