merge_by_id.php

<?php
/*
 * Link: https://fb.com/10159955933216101
 */

$arr1 = array(
		array(
			'id'=> 1,
			'nama' => 'anto',
			'alamat' => 'jln 101'
		),
		array(
			'id'=> 2,
			'nama' => 'joko',
			'alamat' => 'jln 102'
		),
		array(
			'id'=> 3,
			'nama' => 'fra',
			'alamat' => 'jln 103'
		),
);

$arr2 = array(
		array(
			'id' => 1,
			'ttl' => '2022-01-01'
		),
		array(
			'id' => 2,
			'ttl' => '2012-01-03'
		)
);

$arr3 = array(
		array(
			'id' => 1,
			'agama' => 'islam'
		),
		array(
			'id' => 3,
			'agama' => 'budha'
		)
);


/*
 * Buat hash table dengan isi key semua "id" di $arr1, map ke indexnya.
 */
$map = [];
foreach ($arr1 as $k => $v) {
	$map[$v["id"]] = $k;
}

/*
 * Iterate $arr2 dan $arr3, merge ke $arr1 berdasarkan "id".
 */
$p = NULL;
foreach (array($arr2, $arr3) as $vv) {
	foreach ($vv as $v) {
		if (!isset($map[$v["id"]])) {
			continue;
		}

		$id = $v["id"];
		unset($v["id"]);
		$p = &$arr1[$map[$id]];
		$p = array_merge($p, $v);
	}
}

unset($p, $map);
print_r($arr1);