Php key in array exists

<?php
$search_array = array('first' => null, 'second' => 4);

// returns false
isset($search_array['first']);

// returns true
array_key_exists('first', $search_array);
?>

Source: php.net

Php key exists

// Here's our fruity array
$fruits = ['apple', 'pear', 'banana'];

// Use it in an `if` statement
if (array_key_exists("banana", $fruits)) {
 // Do stuff because `banana` exists
}

// Store it for later use
$exists = array_key_exists("peach", $fruits);

Check array has keys in php

<?php

// The values in this arrays contains the names of the indexes (keys) 
// that should exist in the data array
$required = array('key1', 'key2', 'key3');

$data = array(
    'key1' => 10,
    'key2' => 20,
    'key3' => 30,
    'key4' => 40,
);

if (count(array_intersect_key(array_flip($required), $data)) === count($required)) {
    // All required keys exist!
}

Source: stackoverflow.com

Similar codes

2 votes253 views1 answer
Wp cron disable
PHP
1 vote293 views1 answer
I cannot login to my CPanel hosted Laravel Application, my SSL has expired
PHP
9 votes304 views5 answers
Laravel updateOrInsert
PHP Laravel
4 votes275 views1 answer
Know php file name
PHP
0 vote297 views2 answers
$petani = DB::table('tbl_user')->pluck('id_user', 'username', 'alamat', 'no_telp', 'id_lokasi'); return view('listpetani', ['petani' => $petani]);
PHP
0 vote289 views2 answers
All() in laravel
PHP Laravel
0 vote337 views1 answer
Codeigniter order by random
PHP CodeIgniter
0 vote244 views1 answer
Wordpress disable file mods
PHP
0 vote258 views1 answer
Laravel deploy without moving public directory
PHP
3 votes295 views1 answer
Laravel remove controller
PHP Laravel