3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr_period = [ 0 => [ 'period' => 7, 'y' => 20 ], 1 => [ 'period' => 8, 'y' => 20.50 ] , 2 => [ 'period' => 9, 'y' => 7020 ] , 3 => [ 'period' => 10, 'y' => 6520 ] , 4 => [ 'period' => 11, 'y' => 65920 ] , 5 => [ 'period' => 12, 'y' => 62820 ] , 6 => [ 'period' => 13, 'y' => 6120 ] , ];
Output for 7.0.0 - 7.0.24, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4

preferences:
171.91 ms | 403 KiB | 174 Q