为什么在使用for循环时，我的选项列表不会被填充 - Why wont my options list get populated when using a for loop

Why wont my options list get populated when using a for loop

当尝试使用php动态创建具有值的选择框时，我的数据将不会填充。我所做的所有研究都表明我做得对。有人能给我指正确的方向吗。

<select name="month">
<?php
    $months = array("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
    for ($x=0; $x<=11; $x++) {
        echo '<option value="' . $x+1 . '">' . $months[$x] . '</option>';
    }
?>
</select>

您应该在$x+1 周围添加括号

像这样：

<select name="month">
<?php
    $months = array("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
    for ($x=0; $x<=11; $x++) {
        echo '<option value="' . ($x+1) . '">' . $months[$x] . '</option>';
    }
?>
</select>