Online PHP editor | output for 0THfb

@ 2022-02-20T12:49:02Z

<?php

$a = [
  ["ref" => "bee898d8739aa8b2212", "place" => "Berlin"],
  ["ref" => "ygz121byr46dl4795eu", "place" => "Paris"],
  ["ref" => "cer123bur45dl4795ef", "place" => "New-York"],
  ["ref" => "abc123abc12ab1234ab", "place" => "London"]
];

$b = [
  ["ref" => "ygz121byr46dl4795eu", "place" => "Paris"],
  ["ref" => "cer123bur45dl4795ef", "place" => "New-York"]
];

var_export(
    array_udiff($a, $b, fn($rowA, $rowB) => $rowA['ref'] <=> $rowB['ref'])
);

Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0: array ( 0 => array ( 'ref' => 'bee898d8739aa8b2212', 'place' => 'Berlin', ), 3 => array ( 'ref' => 'abc123abc12ab1234ab', 'place' => 'London', ), )
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

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