3v4l.org

run code in 300+ PHP versions simultaneously
<?php // Everything you enter here will be executed by our servers. Try it! $year = array(2010,2010,2010,2011,2011,2012,2013); $profit = array(100,50,10,80,70,50,40); $sums = array(); for ($i; $i < count($year); $i++) { if (isset($sums[$year[$i]])) { $sums[$year[$i]] += $profit[$i]; } else { $sums[$year[$i]] = $profit[$i]; } } print_r($sums);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined variable $i in /in/O2O7f on line 11 Warning: Undefined variable $i in /in/O2O7f on line 12 Warning: Undefined array key "" in /in/O2O7f on line 12 Warning: Undefined variable $i in /in/O2O7f on line 15 Warning: Undefined array key "" in /in/O2O7f on line 15 Warning: Undefined variable $i in /in/O2O7f on line 15 Warning: Undefined array key "" in /in/O2O7f on line 15 Warning: Undefined variable $i in /in/O2O7f on line 11 Array ( [] => [2010] => 60 [2011] => 150 [2012] => 50 [2013] => 40 )
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: i in /in/O2O7f on line 11 Notice: Undefined variable: i in /in/O2O7f on line 12 Notice: Undefined index: in /in/O2O7f on line 12 Notice: Undefined variable: i in /in/O2O7f on line 15 Notice: Undefined index: in /in/O2O7f on line 15 Notice: Undefined variable: i in /in/O2O7f on line 15 Notice: Undefined index: in /in/O2O7f on line 15 Notice: Undefined variable: i in /in/O2O7f on line 11 Array ( [] => [2010] => 60 [2011] => 150 [2012] => 50 [2013] => 40 )
Output for 7.3.32 - 7.3.33
Array ( [] => [2010] => 60 [2011] => 150 [2012] => 50 [2013] => 40 )
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Notice: Undefined variable: i in /in/O2O7f on line 11 Notice: Undefined variable: i in /in/O2O7f on line 12 Notice: Undefined index: in /in/O2O7f on line 12 Notice: Undefined variable: i in /in/O2O7f on line 15 Notice: Undefined index: in /in/O2O7f on line 15 Notice: Undefined variable: i in /in/O2O7f on line 15 Notice: Undefined index: in /in/O2O7f on line 15 Notice: Undefined variable: i in /in/O2O7f on line 11 Array ( [] => [2010] => 60 [2011] => 150 [2012] => 50 [2013] => 40 )
Output for 5.0.4 - 5.0.5
Notice: Undefined variable: i in /in/O2O7f on line 11 Notice: Undefined variable: i in /in/O2O7f on line 11 Notice: Undefined variable: i in /in/O2O7f on line 12 Notice: Undefined index: in /in/O2O7f on line 12 Notice: Undefined variable: i in /in/O2O7f on line 15 Notice: Undefined index: in /in/O2O7f on line 15 Notice: Undefined variable: i in /in/O2O7f on line 15 Notice: Undefined index: in /in/O2O7f on line 15 Notice: Undefined variable: i in /in/O2O7f on line 11 Array ( [] => [2010] => 60 [2011] => 150 [2012] => 50 [2013] => 40 )
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3
Notice: Undefined variable: i in /in/O2O7f on line 11 Notice: Undefined variable: i in /in/O2O7f on line 11 Notice: Undefined variable: i in /in/O2O7f on line 12 Notice: Undefined index: in /in/O2O7f on line 12 Notice: Undefined variable: i in /in/O2O7f on line 15 Notice: Undefined index: in /in/O2O7f on line 15 Notice: Undefined variable: i in /in/O2O7f on line 15 Notice: Undefined index: in /in/O2O7f on line 15 Notice: Undefined variable: i in /in/O2O7f on line 11 Array ( [] => [2010] => 60 [2011] => 150 [2012] => 50 [2013] => 40 )
preferences:
240.88 ms | 403 KiB | 357 Q