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, $keySearch)) {
return true;
}
}
return false;
}php key_exists
PHP function key_exists($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.Copyright © 2021 Codeinu
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