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

1 vote156 views1 answer
How to check the laravel version mac
PHP Laravel
0 vote143 views1 answer
WhereJsonContains laravel
PHP Laravel
1 vote120 views2 answers
Print all session in codeigniter
PHP
21 votes153 views6 answers
Carbon parse timestamp
PHP
1 vote121 views2 answers
Php pointer function
PHP
0 vote88 views1 answer
Laravel wordpress reset password
PHP Laravel
0 vote153 views1 answer
Laravel get next and previous record
PHP Laravel
39 votes126 views6 answers
Php artisan migrate create table
PHP
21 votes115 views2 answers
Php index of last element in array
PHP
6 votes119 views2 answers
Check if text exists in string php
PHP