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 vote158 views1 answer
Laravel composer anctum
PHP Laravel
44 votes142 views3 answers
Mcrypt_decrypt php 7.2
PHP
0 vote140 views4 answers
Sweetalert laravel
PHP
26 votes136 views5 answers
Carbon get time
PHP
8 votes135 views3 answers
Get theme path in wordpress
PHP
0 vote145 views1 answer
Database connection in pdo php
PHP
1 vote156 views1 answer
PHP Warning: file_get_contents(): SSL operation failed with code 1. OpenSSL Error messages:
PHP
0 vote150 views2 answers
Php mb_convert_encoding utf8 extended
PHP
2 votes125 views1 answer
Regex for email php
PHP
0 vote147 views1 answer
Detect Mobile Platform On Php
PHP