php代码使其小型化


php- code make it small

我正试图使用for或while循环使此代码变小。它正在使用以下代码,我只希望它小一些ufile'是输入名称。

if (!$_FILES['ufile']['name'][0]) 
{
    echo "Upload 1st file";
}
else
{
    // can this be in a for loop???
    $path1= "../uploads/".$_FILES['ufile']['name'][0];
    $path2= "../uploads/".$_FILES['ufile']['name'][1];
    $path3= "../uploads/".$_FILES['ufile']['name'][2];
    $path4= "../uploads/".$_FILES['ufile']['name'][3];
    $path5= "../uploads/".$_FILES['ufile']['name'][4];
    $path6= "../uploads/".$_FILES['ufile']['name'][5];
    $path7= "../uploads/".$_FILES['ufile']['name'][6];
    $path8= "../uploads/".$_FILES['ufile']['name'][7];
}
$path = array();
for($i=0;$i<=7;++$i)
    $path[$i]="../uploads/".$_FILES['ufile']['name'][$i];

我建议您不要使用当前的编码风格。如果你只将路径存储在一个数组中,例如,生活会更简单

 $paths[1] = "../uploads/" . $_FILES['ufile']['name'][0];
 $paths[2] = "../uploads/" . $_FILES['ufile']['name'][1];

然后你可以做这样的事情:

$paths = array();
for ($i = 0; $i <= 7; $i++) {
    $paths[$i + 1] = $_FILES['ufile']['name'][$i];
}

但为了回答你的问题,你可以做一些类似的事情:

$paths = array();
for ($i = 0; $i <= 7; $i++) {
    $paths['path' . ($i + 1)] = $_FILES['ufile']['name'][$i];
}
extract($paths);

有关此处发生的事情的更多信息,请参阅提取文档页面

您也可以使用变量

foreach(range(0,7) as $index){
    $varname  = "path".$index;
    $$varname = "../uploads/".$_FILES['ufile']['name'][$index];
}

不确定之后你想对这些路径做什么,但这是我的尝试。我会使用数组的长度,假设它并不总是包含相同数量的文件名。

$paths = array();
for($i = 0; $i < count($_FILES['ufile']['name']); $i++)
{
    $paths[] = "../uploads/".$_FILES['ufile']['name'][$i];
}