我正试图弄清楚如何在CodeIgniter中使用这个directory_map函数。有关更多详细信息,请参阅此处的手册:http://codeigniter.com/user_guide/helpers/directory_helper.html
以下是我所做的工作(有点),结果如下:
$this->load->helper('directory');
$map = directory_map('textfiles/');
$index = '';
foreach ($map as $dir => $file) {
$idx .= "<p> dir: {$dir} </p> <p> file: {$file} </p>";
} #foreach
return $idx;
我的测试环境目录和文件结构:
one [directory]
subone [sub-directory]
testsubone.txt [file-in-sub-directory]
testone.txt [file-in-directory-one]
three [directory]
testthree.txt [file-in-directory-three]
two [directory]
testing [sub-directory]
testagain.txt [file-in-sub-directory-testing]
test.txt [file-in-directory-testing]
test.txt [file]
这是我认为的输出结果:
dir: 0
dir: two
file: Array
dir: three
file: Array
dir: 1
file: test.txt
dir: one
file: Array
正如您在这个结果中看到的,并不是所有的目录或文件都列出了,有些目录或文件显示为数组。
在文件助手中还有一个叫做"get_filenames"的函数。也许它可以以某种方式与directory_map一起使用。
此外,我得到以下错误:
A PHP Error was encountered
Severity: Notice
Message: Array to string conversion
Filename: welcome.php
Line Number: #
任何帮助都将不胜感激。谢谢你=)
您的问题是您试图打印出一个多维数组。
您应该尝试这样做:
带深度计数http://codepad.org/y2qE59XS
$map = directory_map("./textfiles/");
function print_dir($in,$depth)
{
foreach ($in as $k => $v)
{
if (!is_array($v))
echo "<p>",str_repeat(" ",$depth)," ",$v," [file]</p>";
else
echo "<p>",str_repeat(" ",$depth)," <b>",$k,"</b> [directory]</p>",print_dir($v,$depth+1);
}
}
print_dir($map,0);
编辑,另一个没有深度计数的版本:http://codepad.org/SScJqePV
function print_dir($in)
{
foreach ($in as $k => $v)
{
if (!is_array($v))
echo "[file]: ",$v,"'n";
else
echo "[directory]: ",$k,"'n",print_dir($v);
}
}
print_dir($map);
请对您想要的输出更加具体。
在评论中编辑
这个保持路径轨迹http://codepad.org/AYDIfLqW
function print_dir($in,$path)
{
foreach ($in as $k => $v)
{
if (!is_array($v))
echo "[file]: ",$path,$v,"'n";
else
echo "[directory]: ",$path,$k,"'n",print_dir($v,$path.$k.DIRECTORY_SEPARATOR);
}
}
print_dir($map,'');
上次编辑
返回函数http://codepad.org/PEG0yuCr
function print_dir($in,$path)
{
$buff = '';
foreach ($in as $k => $v)
{
if (!is_array($v))
$buff .= "[file]: ".$path.$v."'n";
else
$buff .= "[directory]: ".$path.$k."'n".print_dir($v,$path.$k.DIRECTORY_SEPARATOR);
}
return $buff;
}