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<?php // Everything you enter here will be executed by our servers. Try it! $year = array(2011, 2011, 2011, 2012, 2012, 2013, 2013, 2013); $profit = array(23.42, 253.23, 54.5, 433.23, 53.2, 11.4, 45.5, 532.1); $sums = array(); for ($i = 0; $i < count($year); $i++) { if (isset($sums[$year[$i]])) { $sums[$year[$i]] += $profit[$i]; } else { $sums[$year[$i]] = $profit[$i]; } } print_r($sums);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 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 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Array ( [2011] => 331.15 [2012] => 486.43 [2013] => 589 )
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Array ( [2011] => 331.15 [2012] => 486.43 [2013] => 589 )
preferences:
285.93 ms | 402 KiB | 459 Q