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如何将以下代码转换为PHP?将Python for -loop转换为PHP
summat = [sum(arra[i:i+4]) for i in range(0,len(arra),4)]
我尝试
$summat = array()
foreach (range(0, $arra.length, 4) as $i) {
$summat = array (array_sum(array_slice($array, $i, $i+5))) // don't know how to append the sums the array