将PHP字符串替换为动态选择框

问题描述

我有一个像 $srr = 'Mechanical engineering was at the heart of {} Taylor's theorizing,providing {} the context for its development,the world view by which it was sustained and,finally,the justification for its widespread application.';

我需要将每个{}转换为HTML select，并且option的值将是动态的，我将从数据库中获取该值。 我的问题是，当我尝试将{}替换为选择框时， str_replace不允许我添加foreach循环。 我正在使用array_chunk() ( $fouroptions = array_chunk($options,4); )将选项分为4个， 并且我想将{}替换为使用array_chunk()获得的选项值。 我得到了数组

(
    [0] => Array
        (
            [0] => A
            [1] => B
            [2] => C
            [3] => D
        )

    [1] => Array
        (
            [0] => E
            [1] => F
            [2] => G
            [3] => H
        )

    [2] => Array
        (
            [0] => I
            [1] => J
            [2] => K
            [3] => L
        )
)

这是我的php代码：

$fouroptions = array_chunk($options,4);
$loop = count($fouroptions); 
for ($row = 0; $row < $loop; $row++)
{
    $testselect= "<select>";
    for ($col = 0; $col < 4; $col++)
    {
        $testselect .= "<option>".$fouroptions[$row][$col]."</option>";
    }
    $testselect .= "</select>";
    echo $string = str_replace("{}",$testselect,$quiz_question['title']);
}

解决方法

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