php array if value exists code example
Example 1: php array index exists
$fruits = ['apple', 'pear', 'banana'];
if (array_key_exists("banana", $fruits)) {
}
$exists = array_key_exists("peach", $fruits);
return array_key_exists("pineapple", $fruits);
Example 2: in_array php
<?php
$os = array("Apple", "Banana", "Lemon");
if (in_array("Apple", $os)) {
echo "Yeah. Exist Apple";
}
if (!in_array("Buleberry", $os)) {
echo "Oh, Don't Exist Blueberry!!!";
}
?>
Example 3: php key in array exists
<?php
$search_array = array('first' => null, 'second' => 4);
isset($search_array['first']);
array_key_exists('first', $search_array);
?>