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<?php $arr = [ [1, 2, 3], [4, 5, 6], [7, 8, 9], ]; $sum = 0; $av = 0; for($i = 0 ; $i <= count($arr); $i++){ for ($j = 0; $j <= count($arr[$i]); $j++){ $sum += $arr[$i][$j]; $av = count($arr[$i][$j]); } } echo $arr[$i][$j], PHP_EOL; echo 'Сборът на масива е: ' . $sum, PHP_EOL, 'Средноаритметичната стойност е: ' . ($sum / $av);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, int given in /in/907be:16 Stack trace: #0 {main} thrown in /in/907be on line 16
Process exited with code 255.

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