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Online Sandbox for SQL and PHP: Write, Run, Test, and Share SQL Queries and PHP Code
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<?php
/* Дан массив с числами. Найдите сумму элементов,
расположенных от начала массива до первого отрицательного числа.
*/
$arr = [1, 2, 3, 6, -1, 4, 5];
$sum = 0;
$x = array_slice($arr, 0, array_search(min($arr), $arr));
$sum = array_sum($x);
var_dump($sum);
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