PHP创建文本文件-创建文本文件很困难

debugcn 发表于 Dev

韦恩·林克斯

忙着学习php，书名为“ php and mysql web development 4th edition”。我在以下代码上遇到了麻烦。我正在尝试创建一个文本文件。我正在实时服务器上测试所有代码，但出现以下错误：

Warning: fopen(/home/truevvky/public_html/../orders/orders.txt): failed to open stream: No such file or directory in /home/truevvky/public_html/test/processorder.php on line 60 

Warning: flock() expects parameter 1 to be resource, boolean given in /home/truevvky/public_html/test/processorder.php on line 62.

这个想法是创建一个新的文本文件

<?php
    //create short variable names
    $tireqty = $_POST['tireqty'];
    $oilqty = $_POST['oilqty'];
    $sparkqty = $_POST['sparkqty'];
    $address = $_POST['address'];
    $DOCUMENT_ROOT = $_SERVER['DOCUMENT_ROOT'];
    $date = date('H:i, jS F Y');
?>

<html>
    <head>
    <title>Bob's Auto Parts - Order Results</title>
    </head>
    <body>
    <h1>Bob's Auto Parts</h1>
    <h2>Order Results</h2>
    <?php           
    echo "<p>Order processed at ".date('H:i, jS F Y')."</p>";
    echo "<p>Your order is as follows: </p>";
    $totalqty = 0;
    $totalqty = $tireqty + $oilqty + $sparkqty;
    echo "Items ordered: ".$totalqty."<br />";
    if ($totalqty == 0) {
    echo "You did not order anything on the previous page!<br />";
    } else{
    if ($tireqty > 0) {
    echo $tireqty." tires<br />";
    }

    if ($oilqty > 0) {
        echo $oilqty." bottles of oil<br />";
    }

    if ($sparkqty > 0) {
                        echo $sparkqty." spark plugs<br />";
                    }
                }

                $totalamount = 0.00;            

                define('TIREPRICE', 100);
                define('OILPRICE', 10);
                define('SPARKPRICE', 4);

                $totalamount = $tireqty * TIREPRICE
                                + $oilqty * OILPRICE
                                + $sparkqty * SPARKPRICE;

                $totalamount = number_format($totalamount, 2, '.',' ');

                echo "<p>Total of order is $".$totalamount."</p>";
                echo "<p>Address to ship to is ".$address."</p>";           

                $outputstring = $date."\t".$tireqty." tires \t".$oilqty." oil\t"
                                .$sparkqty." spark plugs\t\$".$totalamount."\t".$address."\n";

                // open file for appending
                @ $fp = fopen("$DOCUMENT_ROOT/../orders/orders.txt", 'ab');

                flock($fp, LOCK_EX);

                if (!$fp) {
                    echo "<p><strong> Your order could not be processed at this time. 
                            Please try again later.</strong></p></body></html>";
                    exit;
                }

                fwrite($fp, $outputstring, strlen($outputstring));
                flock($fp, LOCK_UN);
                fclose($fp);

            ?>
        </body>
    </html>

克里斯托弗·奥尔蒂斯（Christopher Ortiz）

我正在写同一本书，找到了解决他问题的方法。我知道这很老，也许他想通了，但是想将我的答案提供给遇到此问题的其他人。

由于书中的某种原因，他在我们甚至不知道文件是否存在才导致错误之前就把它放了进去。flock（）只是放置一个锁，以便我们可以写LOCK_EX和fwrite（）然后写我们输出的任何内容，然后LOCK_UN释放该锁。

带有WAMP的$ DOCUMENT_ROOT地雷看起来像这样的“ C：/wamp/book/orders/orders.txt”，因此在代码中删除“ ..”。

 // open file for appending
 @ $fp = fopen("$DOCUMENT_ROOT/orders/orders.txt", 'ab');

 if (!$fp) {
   echo "<p><strong> Your order could not be processed at this time. 
   Please try again later.</strong></p></body></html>";
   exit;
 }

 //you move flock down here
 flock($fp, LOCK_EX);

 fwrite($fp, $outputstring, strlen($outputstring));
 flock($fp, LOCK_UN);
 fclose($fp);

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