Online PHP editor | output for X97m4

@ 2016-07-27T15:59:16Z

<?php

$tag_merge_count = 50000;

$a = [];
$b = ['foo', 'bar', 'baz'];
$c = ['llamas', 'are', 'awesome'];

$iterations = $tag_merge_count/4;
for ($i = 0; $i < $iterations; $i++) {
    array_unique(array_merge($a, $b)); // empty + non-empty
    array_unique(array_merge($b, $a)); // non-empty + empty
    array_unique(array_merge($b, $b)); // non-empty + non-empty, with 100% collision
    array_unique(array_merge($b, $c)); // non-empty + non-empty, with 0% collision
}

Output for 5.6.0 - 5.6.24, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 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 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
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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