<?php
$source = ["a" => 1, "b" => 2, "c" => 3];
$input = ["d" => 4, "b" => 10];
echo "With + operator:\n";
echo "input + source | " . json_encode($input + $source) . PHP_EOL;
echo "source + input | " . json_encode($source + $input) . PHP_EOL;
echo "With array_merge:\n";
echo "input + source | " . json_encode(array_merge($input, $source)) . PHP_EOL;
echo "source + input | " . json_encode(array_merge($source, $input)) . PHP_EOL;
- Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
- With + operator:
input + source | {"d":4,"b":10,"a":1,"c":3}
source + input | {"a":1,"b":2,"c":3,"d":4}
With array_merge:
input + source | {"d":4,"b":2,"a":1,"c":3}
source + input | {"a":1,"b":10,"c":3,"d":4}
preferences:
130.31 ms | 407 KiB | 5 Q