每个PHP数组都没有读取$ _POST ['item']数据

Question

以下代码不是

<?php
$deletinglist = addQuotes($_POST['delimglist']);
$deletelist = array($deletinglist);

foreach ($deletelist as $filename) {
unlink(dirname(__FILE__) . "/uploads/" . $filename);
}
function addQuotes($string) {
    return '"'. implode('","', explode(',', $string)) .'"';
}
?>

此处$_POST['delimglist'] = "C0d49a7de7b635477125ffffa8df7b932.jpg,C0d49a7de7b635477125ffffa8df7b934.jpg,C0d49a7de7b635477125ffffa8df7b935.jpg";

如果我使用$deletelist = array("C0d49a7de7b635477125ffffa8df7b932.jpg","C0d49a7de7b635477125ffffa8df7b934.jpg","C0d49a7de7b635477125ffffa8df7b935.jpg");

它的工作正常，但如果我使用$deletelist = array($deletinglist);则无效。

尝试使用上述

时，我收到以下警告

Warning: unlink(/home/...somepath.../uploads/"C0d49a7de7b635477125ffffa8df7b932.jpg","C0d49a7de7b635477125ffffa8df7b934.jpg","C0d49a7de7b635477125ffffa8df7b935.jpg"): No such file or directory in /home/...somepath.../deletefile.php on line 9

Answer 1

您所做的只是将$deleteList作为单个元素放入数组中。您希望将值分隔为＆＃39;，＆＃39;。使用$deleteList = explode(',', $deleteList);

Answer 2

我不确定为什么要在文件名周围添加引号？ 代码应该像这样简单：

<?php
$deletelist = explode(',', $_POST['delimglist']);

foreach ($deletelist as $filename) {
    unlink(dirname(__FILE__) . "/uploads/" . $filename);
}
?>

Answer 3

以下是不一样的事情：

$arr1 = Array("a", "b", "c");

$str  = "a,b,c";
$arr2 = Array($str);

第一个例子中的逗号是一种语言结构：将它们写入单个变量并不意味着它们神奇地获得语言构造能力;在字符串里面，它们只是字符。

同样，这：

$str = "a,b,c";
foo($str);

与此相同：

foo("a,b,c");

而不是这个：

foo("a", "b", "c");

您必须使用明确拆分字符串$_POST['delimglist']的函数：

$deleteList = explode(',', $_POST['delimglist']);