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

1 vote347 views1 answer
Php sql last 10 rows
PHP
4 votes336 views1 answer
Php reading a file line by line
PHP
0 vote341 views1 answer
Add floater to open a modal in wordpress
PHP
0 vote351 views1 answer
Laravel create registration bootstrap
PHP Laravel
0 vote334 views3 answers
@parent laravel
PHP Laravel
0 vote320 views1 answer
Unlink is a directory laravel
PHP
1 vote366 views1 answer
Kill laravel server
PHP Laravel
0 vote340 views1 answer
Retrieve data from database xampp
PHP
0 vote325 views1 answer
Double where condition in laravel
PHP
1 vote374 views1 answer
Header cros orgin using php
PHP