【发布时间】：2012-08-31 07:55:22
【问题描述】：
我的站点中有一个函数可以从 $_FILES 数组上传图像。如果您只有一个图像，并且数组中有两个或更少的项目，此功能可以正常工作，但它只能上传 2 个图像。例如，我的表单在 pei_name[] 字段中最多允许 17 张图像，但它只上传前 2 个字段。这是函数：
private function productImageUploader($id, $image, $altText, $uploadDir)
{
$uploadDir = (!substr($uploadDir, "/")) ? $uploadDir."/" : $uploadDir;
$image = $_FILES[$image];
if(is_array($image['name']))
{
print_r($_FILES);
for($i=0; $i<=sizeof($image['name']); ++$i)
{
echo $i;
if($image['error'][$i] != 4)
{
$image['name'][$i] = str_replace(" ", "-", $image['name'][$i]);
$targetPath = $uploadDir.basename($image['name'][$i]);
if(!move_uploaded_file($image['tmp_name'][$i], $targetPath))
{
switch($image['error'][$i])
{
case 1:
return "<p class=\"error\">The file for Extra Image {$i} is too large for the server.</p>";
break;
case 2:
return "<p class=\"error\">The file for Extra Image {$i} is too large for the form.</p>";
break;
case 3:
case 6:
case 7:
return "<p class=\"error\">An error occured uploading Extra Image {$i}. Please <a onclick=\"location.reload(true);\">refresh</a> the page.</p>";
break;
case 8:
return "<p class=\"error\">The file for Extra Image {$i} is not the correct file type. Please convert it to either a jpg, .png or .bmp file.</p>";
break;
}
}
else
{
$thisAlt = (isset($_POST[$altText][$i]) && $_POST[$altText][$i] != "") ? $_POST[$altText][$i] : $_POST['prod_title'];
$data = array (
'pei_product_id' => $id,
'pei_location' => $image['name'][$i],
'pei_alt' => $thisAlt
);
if(!isset($_POST["pei_id"][$i]))
{
$this->db->insert("product_extra_images", $data);
}
else
{
$this->db->where("pei_id", $_POST['pei_id'][$i]);
$this->db->update("product_extra_images", $data);
}
return true;
}
}
}
}
else
{
if($image['error'] != 4)
{
$image['name'] = str_replace(" ", "-", $image['name']);
$targetPath = $uploadDir.basename($image['name']);
if(!move_uploaded_file($image['tmp_name'], $targetPath))
{
switch($image['error'])
{
case 1:
return "<p class=\"error\">The file for the main product image is too large for the server.</p>";
break;
case 2:
return "<p class=\"error\">The file for the main product image is too large for the form.</p>";
break;
case 3:
case 6:
case 7:
return "<p class=\"error\">An error occured uploading the main product image. Please <a onclick=\"location.reload(true);\">refresh the page.</p>";
break;
case 8:
return "<p class=\"error\">The file for the main product image is not the correct file type. Please convert it to either a jpg, .png or .bmp file.</p>";
break;
}
}
else
{
$data = array ('prod_main_image' => $image['name']);
$this->db->where("prod_id", $id);
$this->db->update("products", $data);
return true;
}
}
}
if(isset($_POST["pei_id"]) && is_array($_POST["pei_id"]))
{
for($i=0; $i<sizeof($_POST["pei_id"]); ++$i)
{
$thisAlt = (isset($_POST[$altText][$i]) && $_POST[$altText][$i] != "") ? $_POST[$altText][$i] : $_POST['prod_title'];
$this->db->where("pei_id", $_POST["pei_id"][$i]);
$this->db->update("product_extra_images", array("pei_alt"=> $thisAlt));
}
}
return true;
}
这是 $_FILES 数组的内容：
Array
(
[prod_main_image] => Array
(
[name] =>
[type] =>
[tmp_name] =>
[error] => 4
[size] => 0
)
[pei_image] => Array
(
[name] => Array
(
[0] => Untitled.jpg
[1] => Untitled.jpg
[2] => Untitled.jpg
[3] => Untitled.jpg
[4] => Untitled.jpg
[5] => Untitled.jpg
[6] => Untitled.jpg
[7] => Untitled.jpg
[8] => Untitled.jpg
[9] => Untitled.jpg
[10] => Untitled.jpg
[11] => Untitled.jpg
[12] => Untitled.jpg
[13] => Untitled.jpg
[14] => Untitled.jpg
[15] => Untitled.jpg
[16] => Untitled.jpg
)
[type] => Array
(
[0] => image/jpeg
[1] => image/jpeg
[2] => image/jpeg
[3] => image/jpeg
[4] => image/jpeg
[5] => image/jpeg
[6] => image/jpeg
[7] => image/jpeg
[8] => image/jpeg
[9] => image/jpeg
[10] => image/jpeg
[11] => image/jpeg
[12] => image/jpeg
[13] => image/jpeg
[14] => image/jpeg
[15] => image/jpeg
[16] => image/jpeg
)
[tmp_name] => Array
(
[0] => /tmp/phpGgDKqk
[1] => /tmp/phpruuIs2
[2] => /tmp/phpIEbSuK
[3] => /tmp/phpHDhaxs
[4] => /tmp/phpigwAza
[5] => /tmp/phpnEY8BS
[6] => /tmp/phpEytPEA
[7] => /tmp/phpRCcEHi
[8] => /tmp/phpeyUAK0
[9] => /tmp/php5aQFNI
[10] => /tmp/php07zSQq
[11] => /tmp/phppQHdU8
[12] => /tmp/php8GFGXQ
[13] => /tmp/phpbaQh1y
[14] => /tmp/phpqN7Z4g
[15] => /tmp/phpjPlP8Y
[16] => /tmp/phpYL3KcH
)
[error] => Array
(
[0] => 0
[1] => 0
[2] => 0
[3] => 0
[4] => 0
[5] => 0
[6] => 0
[7] => 0
[8] => 0
[9] => 0
[10] => 0
[11] => 0
[12] => 0
[13] => 0
[14] => 0
[15] => 0
[16] => 0
)
[size] => Array
(
[0] => 172159
[1] => 172159
[2] => 172159
[3] => 172159
[4] => 172159
[5] => 172159
[6] => 172159
[7] => 172159
[8] => 172159
[9] => 172159
[10] => 172159
[11] => 172159
[12] => 172159
[13] => 172159
[14] => 172159
[15] => 172159
[16] => 172159
)
)
)
【问题讨论】：
-
也许 HTML 表单也可以分享？
-
我已经添加了 $_FILES 数组，因为表单开始时没有额外图像的字段，但通过 javascript 最多可以添加 17 个。
-
你说的有点矛盾。但是，基于不查看您的代码，可能是
upload_max_filesize或post_max_size是罪魁祸首。 -
@iccthedral 不是这些，因为我上传的文件太小了。
-
您能否详细说明您对该问题所做的更改以及以前有效的答案不再适用的方式？
标签： php codeigniter file-upload for-loop upload