Javascript 使用PHP上传PDF时出现的问题

我的PDF上传脚本有2个问题

我注意到只有某些PDF文件会上传，而某些PDF文件不会。我已经注意到，那些工作的速度不到100 kbs。没有的在MB中。有没有办法改变这一点

如果上载的PDF文件名称中有空格，则会导致链接断开。有没有一种方法可以对它进行编码，这样html就能正确地引导它？试图通过谷歌搜索，但什么也找不到。希望你们能对此有所了解

以下是我的PHP：

<?php
include_once 'includes/db_connect.php';
include_once 'includes/psl-config.php';

$title = $_POST['title'];
$id = $_POST['id'];

if ($_FILES["file"]["size"] > 0)
{
    $targetfolder = "uploads/";

    $targetfolder = $targetfolder . basename( $_FILES['file']['name']) ;

    $fileName =  basename( $_FILES['file']['name']) ;

    $url = $_POST['url'];

    $file_type=$_FILES['file']['type'];

    echo "hiii";

        if ($file_type=="application/pdf" || $file_type=="application/x-pdf") 
        {
            unlink($url);

            if(move_uploaded_file($_FILES['file']['tmp_name'], $targetfolder))
            {

                if ($insert_stmt = $mysqli->prepare("UPDATE content SET title = ?, fileName = ?, url = ? WHERE id = ?;")) 
                {
                    $insert_stmt->bind_param('sssd', $title, $fileName, $targetfolder, $id );
                        if (! $insert_stmt->execute()) 
                        {
                            echo "Error processing your request";
                        }
                    echo "<p>The file is updated</p>";
                    echo"<p>Return to the <a href='protected_page.php'>content page</a></p>";
                }
                else
                {
                    echo "<p> Failed to upload to the server</p>
                    <p> Return back to <a href='edit_content.php'>edit page</a></p>";
                }

            }

            else 
            {
                echo "<p>Problem uploading file</p>";
            }

        }

        else 
        {
            echo "<p>You may only upload PDFs</p>
                <p> Return back to <a href='edit_content.php'>edit page</a></p>
                ";
        }
}
else
{
    if ($insert_stmt = $mysqli->prepare("UPDATE content SET title = ? WHERE id = ?;")) 
    {
        $insert_stmt->bind_param('sd', $title, $id );
        if (! $insert_stmt->execute()) 
        {
            header('Location: ../error.php?err=Registration failure: update');
        }
            echo "<p>The file was updated</p>";
            echo"<p>Return to the <a href='protected_page.php'>content page</a></p>";
    }
    else
    {
        echo "<p> Failed to upload to the server</p>
            <p> Return back to <a href='add_content.php'>edit page</a></p>";
    }

}
?>

对于问题#2，您可以重命名上载的文件，用下划线替换空格，这样您就不会得到断开的链接

$targetfolder = $targetfolder . basename( $_FILES['file']['name']);

将是

$targetfolder = $targetfolder . basename( str_replace(' ', '_', $_FILES['file']['name']) );

---

对于上载大小的问题。。。问题1已修复。只是附带说明一下，它要求我重新启动apache，以使更改对php.ini文件产生影响。我找到了另一种解决方法。我刚用了“rawurlencode”

$targetfolder = $targetfolder . basename( str_replace(' ', '_', $_FILES['file']['name']) );