嘿伙计们，我想做的是为不同游戏机上的各种游戏建立一个上传页面。我承认我是 php 新手，我只是想弄清楚。我通过上传图片遇到了一个奇怪的问题。我不明白为什么这会失败，因为数组中的一个属性工作得很好。它可以毫无问题地从表单上传结果。其他三个属性都失败了。使用完全相同的功能和方法。
//// this the form block for uploading ////
<form action="process.php" method="post" enctype="multipart/form-data">
<!--xbox -->
<div class="form">
<h3>Xbox 360</h3>
<!-- title of post/ game name -->
<p><label for="xboxtitle"> Title of Game </lable></p>
<input type="text" name="xboxtitle" size=20 /><br />
<!-- image uploader -->
<p><label for="xbox-image">Game Image:</label><sup>*png, png, bmp, jpeg and jpg only!</sup></p>
<input type="file" name="xboximage" /><br />
<input type="hidden" name="MAX_FILE_SIZE" value="100000" />
<!-- large text box -->
<p><label for="xboxtext">Displayed text:</label><sup> * limit of 250 characters allowed.</sup></p>
<textarea cols=40 rows=10 name="xboxtext"></textarea>
<!-- price box -->
<p><label for="xboxprice">Price of item</label></p>
<input type="text" name="xboxprice" size=8 /><br />
</div>
<!-- p3 -->
<div class="form">
<h3>Playstation 3</h3>
<!-- title of post/ game name -->
<p><label for="ps3title"> Title of Game </lable></p>
<input type="text" name="ps3title" size=20 /><br />
<!-- image uploader -->
<p><label for="ps3image">Game Image:</label><sup>*png, png, bmp, jpeg and jpg only!</sup></p>
<input type="file" name="ps3image" /><br />
<input type="hidden" name="MAX_FILE_SIZE" value="100000" />
<!-- large text box -->
<p><label for="ps3text">Displayed text:</label><sup> * limit of 250 characters allowed.</sup></p>
<textarea cols=40 rows=10 name="ps3text"></textarea>
<!-- price box -->
<p><label for="ps3price">Price of item</label></p>
<input type="text" name="ps3price" size=8 /><br />
</div>
<!-- wii -->
<div class="form">
<h3>Wii</h3>
<!-- title of post/ game name -->
<p><label for="wiititle"> Title of Game </lable></p>
<input type="text" name="wiititle" size=20 /><br />
<!-- image uploader -->
<p><label for="wiiimage">Game Image:</label><sup>*png, png, bmp, jpeg and jpg only!</sup></p>
<input type="file" name="wiiimage" /><br />
<input type="hidden" name="MAX_FILE_SIZE" value="100000" />
<!-- large text box -->
<p><label for="wiitext">Displayed text:</label><sup> * limit of 250 characters allowed.</sup></p>
<textarea cols=40 rows=10 name="wiitext"></textarea>
<!-- price box -->
<p><label for="wiiprice">Price of item</label></p>
<input type="text" name="wiiprice" size=8 /><br />
</div>
<!-- PC -->
<div class="form">
<h3>PC</h3>
<!-- title of post/ game name -->
<p><label for="pctitle"> Title of Game </lable></p>
<input type="text" name="pctitle" size=20 /><br />
<!-- image uploader -->
<p><label for="pcimage">Game Image:</label><sup>*png, png, bmp, jpeg and jpg only!</sup></p>
<input type="file" name="pcimage" /><br />
<input type="hidden" name="MAX_FILE_SIZE" value="100000" />
<!-- large text box -->
<p><label for="pctext">Displayed text:</label><sup> * limit of 250 characters allowed.</sup></p>
<textarea cols=40 rows=10 name="pctext"></textarea>
<!-- price box -->
<p><label for="pcprice">Price of item</label></p>
<input type="text" name="pcprice" size=8 /><br />
</div>
<p><input type="submit" id="submit" class="bigbutton" value="Upload" /></p>
</form>
///// this is the process.php page ///
<?php
include ("includes/logincheck.php");
?>
<?php
// Call our connection file
require("dbacess.php");
///////////////////////////////////////////////////////////////////////////////////////////////////
// create validating image types function
function is_valid_type($file)
{
// This is an array that holds all the valid image MIME types
$valid_types = array("image/jpg", "image/jpeg", "image/bmp", "image/gif", "image/png");
if (in_array($file['type'], $valid_types))
return 1;
return 0;
}
// declare possible forms in array.
$arr = array("xbox","ps3", "wii", "pc");
// push the array through the following code
//while giving $value the proper form prefix
foreach ($arr as &$value) {
//$value Variables
$title = $_POST[$value . 'title'];
$text = $_POST[$value . 'text'];
$price = $_POST[$value . 'price'];
$image = $_FILES[$value .'image'];
//validate info or redirect
if ($title && $text && $price && $image['name'] != "" )
{
// Sanitize our inputs
$title = mysql_real_escape_string($title);
$text = mysql_real_escape_string($text);
$price = mysql_real_escape_string($price);
$image['name'] = mysql_real_escape_string($image['name']);
// Build our target path full string. This is where the file will be moved to
// Build Partial Target Path
$TARGET_PATH = "../../images/newreleasesuploads/";
$TARGET_PATH .= "$value/";
//creates upload path
$UPLOAD_PATH = $TARGET_PATH;
$UPLOAD_PATH .= $image['name'];
// Check to make sure that our file is actually an image
// You check the file type instead of the extension because the extension can easily be faked
if (!is_valid_type($image))
{
$_SESSION['error'] = "You must upload a jpeg, gif, png, or bmp in {$value} field. Please select a correct file type.";
header("Location: welcome.php");
exit;
}
// Here we check to see if a file with that name already exists
// You could get past filename problems by appending a timestamp to the filename and then continuing
if (file_exists($UPLOAD_PATH))
{
$_SESSION['error'] = "A file with that name already exists when trying to update $value page. Please rename file something different or remove the existing files";
header("Location: welcome.php");
exit;
}
//create current date variable
$date = date("Y-m-d");
$date .= date(" h:i:s");
// count # of entries
$entry = mysql_query("SELECT * FROM new{$value}");
$NUMBER_OF_ROWS = mysql_num_rows($entry);
// Count # of entries delete if index is 10 or more.
if($NUMBER_OF_ROWS >=10){
// find oldest entry by date
$sqldate ="SELECT * FROM new{$value}
WHERE date = (SELECT MIN(date) FROM new{$value})";
$oldestdate = mysql_query($sqldate) or die ("could not access DB to find oldest entry" . mysql_error());
//grabs data from that row
$row = mysql_fetch_assoc($oldestdate);
//adds filename to delete path
$DELETE =$TARGET_PATH;
$DELETE .=$row['filename'];
// parse row date to variable
$deletedate = $row['id'];
//terminates entry
$deletedate = "DELETE FROM new{$value}
WHERE id = $deletedate";
$deleteoldest = mysql_query($deletedate) or die ("could not delete oldest date entry" . mysql_error());
//terminates file
unlink($DELETE);
$_SESSION['message'] .= "The oldest entry was deleted to make room for the new upload.";
}
// attempt to move the file from its temporary directory to its new home
if (move_uploaded_file($image['tmp_name'], $UPLOAD_PATH))
{
// Placing a reference of the images location into the database, *not* putting the image into the database.
$sql = "insert into new{$value} (date, title, description, price, filename) values ('$date', '$title', '$text', '$price', '" . $image['name'] . "' )";
$result = mysql_query($sql) or die ("Could not insert data into DB: " . mysql_error());
//message to let user know image was uploaded correctly
$_SESSION['message'] .= "The {$value} entry was uploaded correctly";
}
else {
// A common cause of file moving failures is because of bad permissions on the directory attempting to be written to
// Make sure you chmod the directory to be writable also make sure directory is not READ ONLY
$_SESSION['error'] = "Could not upload file. Check read/write permissions on the directory";
header("Location: welcome.php");
exit;
}
}
// declare variable for error display
$i = 0;
// validate to make sure all are filled
if($title !=""){$i++;}
if($text !=""){$i++;}
if($price !=""){$i++;}
if($image['name'] !=""){$i++;}
elseif ($i!=0) {
//validate that more then one but not all box
$_SESSION['error'] = "Only $i of the fields for $value were filled. Please refill all fields or no fields for $value";
header("Location: welcome.php");
exit;
}
}
// return to upload page
header("Location: welcome.php");
exit;
?>
发生的事情是数组中的 xbox 值通过，但是 ps3 wii 和 pc 都发回错误“您必须在 ps3 字段中上传 jpeg、gif、png 或 bmp。请选择正确的文件类型。” 如果图像是错误的文件类型，它应该这样做。但是，我可以同时或单独上传相同的图像，并且 xbox 每次都会通过，而其他的则会失败。谁能告诉我这是为什么？可能如何解决？
提前感谢您的时间