Php key_exists

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);

Keys of array exist in array

function findKey($array, $keySearch)
{
    foreach ($array as $key => $item) {
        if ($key == $keySearch) {
            echo 'yes, it exists';
            return true;
        } elseif (is_array($item) && findKey($item, $keySearch)) {
            return true;
        }
    }
    return false;
}

Source: stackoverflow.com

Php key_exists

PHP function key_exists($key, array $array) bool
------------------------------------------------
Checks if the given key or index exists in the array. The name of this function is array_key_exists() in PHP > 4.0.6.

Parameters:
int|string--$key--Value to check.
array--$array--An array with keys to check.
  
Returns:true on success or false on failure.

Similar codes

0 vote148 views2 answers
Send data using ajax in laravel
PHP Laravel
0 vote175 views1 answer
How pass optional route parameter in laravel
PHP
13 votes170 views5 answers
Zsh: command not found: laravel
PHP
0 vote176 views2 answers
Launch uikit modal from php
PHP
0 vote169 views1 answer
Date_default_timezone_set php bangladesh
PHP
0 vote182 views1 answer
Cpanel composer update kill
PHP
3 votes174 views1 answer
How to add two array in single array without repetation in php
PHP
0 vote178 views1 answer
Laravel collection forget
PHP
0 vote171 views1 answer
Set owner symfony
PHP
63 votes164 views6 answers
Clear all cache in laravel
PHP