Question

我遇到“未定义偏移”错误和fgetcsv错误的问题。我希望它在从压缩文件中提取文件后为我生成查询文件。在压缩文件中，有CSV文件，它将读取CSV文件并生成查询，看起来它不起作用。我不明白为什么。

以下是错误：

Notice: Undefined offset: 5 in C:\xampp\htdocs\dnquery\process.php on line 35
Notice: Undefined offset: 5 in C:\xampp\htdocs\dnquery\process.php on line 38
Notice: Undefined offset: 5 in C:\xampp\htdocs\dnquery\process.php on line 42
Notice: Undefined offset: 5 in C:\xampp\htdocs\dnquery\process.php on line 42
Notice: Undefined offset: 5 in C:\xampp\htdocs\dnquery\process.php on line 42
Notice: Undefined offset: 5 in C:\xampp\htdocs\dnquery\process.php on line 42
Notice: Undefined offset: 5 in C:\xampp\htdocs\dnquery\process.php on line 42
Notice: Undefined offset: 8 in C:\xampp\htdocs\dnquery\process.php on line 46
Notice: Undefined offset: 8 in C:\xampp\htdocs\dnquery\process.php on line 48
Notice: Undefined variable: query in C:\xampp\htdocs\dnquery\process.php on line 53
Warning: fgetcsv(): 6 is not a valid stream resource in C:\xampp\htdocs\dnquery\process.php on line 34

以下是我的代码：

<?php
set_time_limit(0);
$downloadpathzip = dirname(dirname(dirname(dirname(__FILE__))))."Users\\zambo\\Downloads\\messages.zip";
$filecount = 0; 
$dirdns = 'dnsquery';
if (file_exists($downloadpathzip)) {
    $zip = new ZipArchive;
    $res = $zip->open($downloadpathzip);
    if ($res === TRUE) {
        $zip->extractTo('dnsquery');
        $zip->close();
        unlink($downloadpathzip);
    }
} 
if ($handle = opendir($dirdns)) {
    while (($file = readdir($handle)) !== false) {
        if (!in_array($file, array('.', '..')) && !is_dir($dirdns.$file)) 
            $filecount++;
    }
}
$x = 1;
while ($x < $filecount) {
    $uploadfile = "dnsquery/message_history".$x.".csv";
    $filequery = 'query'.$x.'.sql';
    $fpread = fopen($uploadfile,'r') or die("can't open file");
    $fpwrite = fopen($filequery,'w') or die("can't open file");
    while ($csv_line = fgetcsv($fpread,1024)) {
        if ($csv_line[5] == "Status") {
        } elseif ($csv_line[5] == "delivered") {
            $querystatus = "SCS";
        } elseif (
            $csv_line[5] == "expired" ||
            $csv_line[5] == "failed" ||
            $csv_line[5] == "invalid" ||
            $csv_line[5] == "outofcredit" ||
            $csv_line[5] == "undeliverable"
        ) {
            $querystatus = "FLR";
        }
        if ($csv_line[8] == "Reference") {
        } elseif ($csv_line[8] != "" ) {
            $query .= "Update smsstatus set Dnstatus = '$querystatus',updatedate=NOW() where mtmsgid = '$csv_line[8]';\r\n";
        }
        fclose($fpread) or die("can't close file");
        fwrite($fpwrite, $query);
        fclose($fpwrite) or die("can't close file");
    }
    $x++;
}
?>

Answer 1

好的，您收到与文件句柄有关的错误的原因是因为您过早地关闭了句柄（我已从此示例中删除了不相关的代码）：

while ($x < $filecount) {
    // Open the read/write handlers
    $fpread  = fopen($uploadfile,'r') or die("can't open file");
    $fpwrite = fopen($filequery,'w') or die("can't open file");
    // Use them...
    while ($csv_line = fgetcsv($fpread,1024)) {
        // Close the handles... but you are not done using them yet...
        // On the next iteration of the loop you will get errors because
        // you closed the handles here, but they should not be.
        fclose($fpread) or die("can't close file");
        fclose($fpwrite) or die("can't close file");
    }
}

正如您所看到的那样，您正在关闭while循环内的句柄。由于句柄被循环使用，fgetcsv()函数将获得一个不能使用的闭合句柄。

当你完成使用它们时，你应该修改你的代码，以便在循环外面关闭句柄。

这样的事情应该有效：

while ($x < $filecount) { // Open the read/write handlers $fpread = fopen($uploadfile,'r') or die("can't open file"); $fpwrite = fopen($filequery,'w') or die("can't open file"); // Use them... while ($csv_line = fgetcsv($fpread,1024)) { // Do stuff... } // Close them when you are done using them... fclose($fpread) or die("can't close file"); fclose($fpwrite) or die("can't close file"); }

无法生成查询文件

1 个答案: