3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ (object)['id' => 8], (object)['id' => 7], (object)['id' => 5] ]; $order = [5, 8, 1]; $order = array_flip($order); $order[''] = max(array_column($array, 'id')) + 1; usort($array, function($a, $b) use ($order) { return ($order[$a->id] ?? $order['']) <=> ($order[$b->id] ?? $order['']); }); var_export($array);
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 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
array ( 0 => (object) array( 'id' => 5, ), 1 => (object) array( 'id' => 8, ), 2 => (object) array( 'id' => 7, ), )
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.
Output for 7.1.0 - 7.1.25, 7.2.0 - 7.2.33
array ( 0 => stdClass::__set_state(array( 'id' => 5, )), 1 => stdClass::__set_state(array( 'id' => 8, )), 2 => stdClass::__set_state(array( 'id' => 7, )), )
Output for 5.6.38
Parse error: syntax error, unexpected '?' in /in/LsI37 on line 14
Process exited with code 255.
preferences:
67.36 ms | 410 KiB | 5 Q