file_put_contents有时有效，但不总是有效

Question

I have a script that copies the output of twig / email to a tmp file that we need to store for legal purposes. Firstly this was done by using fopen, fwrite, close. That worked for years, all of sudden it stopped working and the files.

Then we changed to using file_put_contents. However that causes the same situation. Fast majority the files are created, however 15-25% the files are not store locally while there is content.

$bytes doesn't output anything when the file_put_contents fails. The error logs don't show anything. Currently there are 324.000 files in the folder, we are bringing that down to 10.000 max.

What is going wrong, or can somebody point me to a different debug approach? See the code below.

Additional info, folder where the files are stored has correct permissions. Script is executed by an cronjob.

    try {
    $Contents = $twig->render(stripslashes($TemplateDetails['templateHTML']), $EmailData);
    $Subject = $twig->render(stripslashes($TemplateDetails['templateSubject']), $EmailData);

    $bytes = file_put_contents($serverSettings['root'].'my/tmp/emaillogs/'.$PDFLogFile.'.html', $Contents);

    /*
    $WriteFile = fopen($serverSettings['root'].'my/tmp/emaillogs/'.$PDFLogFile.'.html','w');
    $bytes = fwrite($WriteFile, $Contents);
    fclose($WriteFile);
    */

    echo $Output->getColoredString('Wrote '.$bytes.' to file '. $serverSettings['root'].'my/tmp/emaillogs/'.$PDFLogFile.'.html')."\n";

    // Create the Mailer using your created Transport
    $mailer = Swift_Mailer::newInstance($transport);

    $logger = new \Swift_Plugins_Loggers_ArrayLogger();
    $mailer->registerPlugin(new \Swift_Plugins_LoggerPlugin($logger));

    $message = Swift_Message::newInstance($Subject)
        ->setFrom(array($ResultSelectEmails[$key]['fromEmail'] => $ResultSelectEmails[$key]['fromName']))
        ->setTo(array($ResultSelectEmails[$key]['toEmail']))
        ->setBody($Contents, 'text/html', 'UTF-8')
    ;

    if (!$mailer->send($message, $errors)) {
        // Dump the log contents
        // NOTE: The EchoLogger dumps in realtime so dump() does nothing for it. We use ArrayLogger instead.
        echo $Output->getColoredString(" - [ERROR] " . $logger->dump(), "red") . "\n";
    }else{
        echo $Output->getColoredString('- [SEND] '.date('Y-m-d H:i:s'), 'green') . "\n";
    }


}catch (\Exception $exc) {

    $body  = "TemplateId: ".$ResultSelectEmails[$key]['template']."\n";
    $body .= "ShopId: ".$ResultSelectEmails[$key]['shopId']."\n";
    $body .= "--------------------------------------------------------\n";
    $body .= "String Error: ". $exc->getTraceAsString()."\n";
    $body .= "Line: ".$exc->getLine()."\n";
    $body .= "File: ".$exc->getFile()."\n";

    mail('some@email.com', 'TEMPLATE ERROR: '.$ResultSelectEmails[$key]['template'],$body);

    exit;

}

Answer 1

Just before

$bytes = file_put_contents($serverSettings['root'].'my/tmp/emaillogs/'.$PDFLogFile.'.html', $Contents);

put this code - it will help you determine what's up:

if (is_writable($serverSettings['root'].'my/tmp/emaillogs/'.$PDFLogFile.'.html')) {
    // no worries, just keep trucking
    // echo 'The file is writable';
} else {
    $body  = "Error writing file: ".$serverSettings['root'].'my/tmp/emaillogs/'.$PDFLogFile.'.html'."\n";
    $body .= "Date Time: ".date('Y-m-d H:i:s')."\n";
    $body .= "--------------------------------------------------------\n";
    $body .= "Data to have been written: ".$Contents."\n";

    mail('some@email.com', 'FILE WRITING ERROR', $body);
}
$bytes = file_put_contents($serverSettings['root'].'my/tmp/emaillogs/'.$PDFLogFile.'.html', $Contents);

Then you can begin by checking to see if that file exists already or is unwritable.