遍历具有相似名称的$ _POST变量 [英] loop through $_POST variables with similar names

问题描述

我有几个$ _POST变量，它们是

I have several $_POST variables, they are

$_POST['item_number1']
$_POST['item_number2']

以此类推

我需要编写一个循环，以显示所有变量的值(我不知道有多少个变量).最简单的方法是什么?如果我知道我有多少个变量，最简单的方法是什么?

I need to write a loop tha displays the values of all the variables (I don't know how many there are). What would be a simplest way to go about it? Also what would be the simplest way if I do know how many variables I have?

推荐答案

这将回显名称以item_number开头的所有POST参数:

This will echo all POST parameters whose names start with item_number:

foreach($_POST as $k => $v) {
    if(strpos($k, 'item_number') === 0) {
        echo "$k = $v";
    }
}

PHP手册: foreach() ，

PHP Manual: foreach(), strpos()

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