语法错误 :P HP 分析错误:语法错误，文件意外结尾

你得到Syntax error, unexpected end，因为你错过了这一行的结束括号：

if(isset($_FILES) && (bool) $_FILES) {

另请注意，当您修复此解析错误时，您将收到一些未定义的索引通知，因为您在if($_POST['submit'] !='')内部定义了$name, $email等并在检查外部使用。

完全修改的代码：

<?php
if(isset($_FILES) && (bool) $_FILES) {
    $AllowedExtensions = ["pdf","doc","docx","gif","jpeg","jpg","png","rtf","txt"];
    $files = [];
    $server_file = [];
    foreach($_FILES as $name => $file) {
        $file_name = $file["name"];
        $file_temp = $file["tmp_name"];
        foreach($file_name as $key) {
            $path_parts = pathinfo($key);
            $extension = strtolower($path_parts["extension"]);
            if(!in_array($extension, $AllowedExtensions)) { die("Extension not allowed"); }
            $server_file[] = "uploads/{$path_parts["basename"]}";
        }
        for($i = 0; $i<count($file_temp); $i++) { move_uploaded_file($file_temp[$i], $server_file[$i]); }
    }
    $headers = "From: $from";
    $semi_rand = md5(time());
    $mime_boundary = "==Multipart_Boundary_x{$semi_rand}x";
    $headers .= "'nMIME-Version: 1.0'n" . "Content-Type: multipart/mixed;'n" . " boundary='"{$mime_boundary}'"";
    $message = "This is a multi-part message in MIME format.'n'n" . "--{$mime_boundary}'n" . "Content-Type: text/plain; charset='"iso-8859-1'"'n" . "Content-Transfer-Encoding: 7bit'n'n";
    $message .= "--{$mime_boundary}'n";
    $FfilenameCount = 0;
    for($i = 0; $i<count($server_file); $i++) {
        $afile = fopen($server_file[$i],"rb");
        $data = fread($afile,filesize($server_file[$i]));
        fclose($afile);
        $data = chunk_split(base64_encode($data));
        $name = $file_name[$i];
        $message .= "Content-Type: {'"application/octet-stream'"};'n" . " name='"$name'"'n" .
            "Content-Disposition: attachment;'n" . " filename='"$name'"'n" .
            "Content-Transfer-Encoding: base64'n'n" . $data . "'n'n";
        $message .= "--{$mime_boundary}'n";
    }
}
/** Your submit block **/
if(isset($_POST['submit']))
{
    $name = htmlspecialchars($_REQUEST['name']);
    $email = htmlspecialchars($_REQUEST['email']);
    $mobile = htmlspecialchars($_REQUEST['mobile']);
    $company = htmlspecialchars($_REQUEST['company']);
    $qty = htmlspecialchars($_REQUEST['qty']);
    $msg = htmlspecialchars($_REQUEST['msg']);
    $to="example@gmail.com";
    $subject = "Order Information";
    $message .= "Name: " . $name . "'n";
    $message .= "Email: " . $email . "'n";
    $message .= "ContactNo: " . $mobile . "'n";
    $message .= "Company: " . $company . "'n";
    $message .= "Quantity: " . $qty . "'n";
    $message .= "Message: " . $msg . "'n";
    if(mail($to, $subject, $message, $headers)) {   
        echo 'thank you';   
    }
    else { 
        echo 'error';
    }
}
?>

更新 1：

我不知道你为什么要在这行末尾使用$message：

$message = "This is a multi-part message in MIME format.'n'n" . "--{$mime_boundary}'n" . "Content-Type: text/plain; charset='"iso-8859-1'"'n" . "Content-Transfer-Encoding: 7bit'n'n" . $message . "'n'n";

它还会给你未定义的变量通知，只需删除它。

试试这段代码：

<?php
    if(isset($_FILES) && (bool) $_FILES) {
        $AllowedExtensions = ["pdf","doc","docx","gif","jpeg","jpg","png","rtf","txt"];
        $files = [];
        $server_file = [];
        foreach($_FILES as $name => $file) {
            $file_name = $file["name"];
            $file_temp = $file["tmp_name"];
            foreach($file_name as $key) {
                $path_parts = pathinfo($key);
                $extension = strtolower($path_parts["extension"]);
                if(!in_array($extension, $AllowedExtensions)) { die("Extension not allowed"); }
                $server_file[] = "uploads/{$path_parts["basename"]}";
            }
            for($i = 0; $i<count($file_temp); $i++) { move_uploaded_file($file_temp[$i], $server_file[$i]); }
        }
        $headers = "From: $from";
        $semi_rand = md5(time());
        $mime_boundary = "==Multipart_Boundary_x{$semi_rand}x";
        $headers .= "'nMIME-Version: 1.0'n" . "Content-Type: multipart/mixed;'n" . " boundary='"{$mime_boundary}'"";
        $message = "This is a multi-part message in MIME format.'n'n" . "--{$mime_boundary}'n" . "Content-Type: text/plain; charset='"iso-8859-1'"'n" . "Content-Transfer-Encoding: 7bit'n'n" . $message . "'n'n";
        $message .= "--{$mime_boundary}'n";
        $FfilenameCount = 0;
        for($i = 0; $i<count($server_file); $i++) {
            $afile = fopen($server_file[$i],"rb");
            $data = fread($afile,filesize($server_file[$i]));
            fclose($afile);
            $data = chunk_split(base64_encode($data));
            $name = $file_name[$i];
            $message .= "Content-Type: {'"application/octet-stream'"};'n" . " name='"$name'"'n" .
                "Content-Disposition: attachment;'n" . " filename='"$name'"'n" .
                "Content-Transfer-Encoding: base64'n'n" . $data . "'n'n";
            $message .= "--{$mime_boundary}'n";
        }
if($_POST['submit'] !='')
{
$name = htmlspecialchars($_REQUEST['name']);
$email = htmlspecialchars($_REQUEST['email']);
$mobile = htmlspecialchars($_REQUEST['mobile']);
$company = htmlspecialchars($_REQUEST['company']);
$qty = htmlspecialchars($_REQUEST['qty']);
//$upload = htmlspecialchars($_REQUEST['upload']);
$msg = htmlspecialchars($_REQUEST['msg']);
}
$to="amar.ghodke30@gmail.com";

$subject = "Order Information";
$message .= "Name: " . $name . "'n";
$message .= "Email: " . $email . "'n";
$message .= "ContactNo: " . $mobile . "'n";
$message .= "Company: " . $company . "'n";
$message .= "Quantity: " . $qty . "'n";
//$message .= "Upoload: " . $upload . "'n";
$message .= "Message: " . $msg . "'n";

if(mail($to, $subject, $message, $headers))
{   echo 'thank you';   }
else{ echo 'error';}
    } // This one is missing :)
?>

文件末尾缺少"}"。

此行之前缺少一个右括号...

if($_POST['submit'] !='')

您尚未关闭第一个 if 条件块。