我有一个表格,要求最多 20 个 1-4 字符代码。我想要做的是计算每个代码,这样我最终得到一个输出
AB //entered once
EFOO //entered once
AACC x 2 //because AACC was entered twice into form
DDFE x 6 //because DDFE was entered into the form 6 times
这是我的代码的示例,我得到了所有结果,我只是不确定如何比较和计算它们。
<input type="text" name="code[]">
foreach ($_POST as $key=>$val) {
echo $_POST['code'][$key];
}