php - 带表格的简单数学 PHP

Question

我有一个名为 $row['seuil_pil'] 的表，它只包含数字。我想将这些数字增加一定数量，但它不起作用。

这是我的代码:

$roof=0.12;      

$seuil_haut= array_product(($row['seuil_pil']*$roof) + $row['seuil_pil']); 

或

$seuil_haut= array(($row['seuil_pil']*$roof) + $row['seuil_pil']); 

或

$seuil_haut= ($row['seuil_pil']*$roof) + $row['seuil_pil'];  

或

foreach ($row['seuil_pil'] as $seuil_haut[])
{
    $seuil_haut[] = ($roof * $row['seuil_pil'] + $row['seuil_pil'] ); 
}

Answer 1

如果你想对你正在迭代的数组应用操作，你必须使用带有引用的foreach:

foreach ($row['seuil_pil'] as &$cell) {
    $cell = $cell * $roof + $cell;
}