<?php
$array1 = array(
array('ITEM' => 1),
array('ITEM' => 2),
array('ITEM' => 3),
);
$array2 = array(
array('ITEM' => 2),
array('ITEM' => 3),
array('ITEM' => 1),
array('ITEM' => 4),
);
// PHP7.4+ (arrow functions)
var_export(
array_udiff($array2, $array1, fn($a, $b) => $a['ITEM'] <=> $b['ITEM'])
);
echo "\n";
// PHP7+ (spaceship operator)
var_export(
array_udiff($array2, $array1, function($a, $b) { return $a['ITEM'] <=> $b['ITEM']; })
);
echo "\n";
// PHP5.3+ (anonymous functions)
var_export(
array_udiff($array2, $array1, function($a, $b) { return $a['ITEM'] === $b['ITEM'] ? 0 : ($a['ITEM'] > $b['ITEM'] ? 1 : -1); })
);
preferences:
48.68 ms | 402 KiB | 5 Q