<?php
$data = array("28000000000000003" => 'ABC',"28000000000000001" => 'PQR');
$keys = array("28000000000000003","28000000000000001");
$keysDerived = array_keys($data);
var_dump($keys == $keysDerived, $keys === $keysDerived);
var_dump(in_array("28000000000000003", $keysDerived, true));
var_dump(in_array("28000000000000003", $keysDerived));
var_dump(in_array("28000000000000003", $keys, true));
var_dump(in_array("28000000000000003", $keys));
foreach ( $data as $k => $d ) {
foreach ( $keys as $key ) {
if ($key == $k) {
var_dump($k, "=", $key);
}
if ($key === $k) {
var_dump($k, "===", $key);
}
}
}
preferences:
35.86 ms | 402 KiB | 5 Q