[英]PHP fopen, fwrite and fclose proceed without errors but no file created
我在两个ubuntu 16.04上的LAMP下运行PHP 7.0.22。
以下代码继续运行而不会引发异常,$ tempFile的值为Resource id#4。
try {
// Open temp file for writing
$tempFile = fopen("/var/www/dropbox/temp.lst", "w");
echo "tempfile=" . $tempFile . "<br>";
// Write list of file names to file
for ($x = 0; $x <= $inputFileCount; $x++) {
fwrite($tempFile, $fileNames);
}
// Close temp file
fclose($tempFile);
} catch ( Exception $e ) {
// send error message if you can
echo 'Caught exception: ', $e->getMessage(), "\n";
}
但是,没有文件(名称为temp.lst)出现在具有完全写许可权的目录/ var / www / dropbox /中。
ls -ld /var/www/dropbox/
drwxrwsrwx 2 ubuntu www 4096 Mar 25 18:13 /var/www/dropbox/
没有显示与代码相关的错误
cat /var/log/apache2/error.log
fopen
, fwrite
, fclose
不抛出异常,它们返回错误
尝试
try {
// Open temp file for writing
$tempFile = fopen("/var/www/dropbox/temp.lst", "w");
if (false === $tempFile) throw new \RuntimeException("Failed to open file");
echo "tempfile=" . $tempFile . "<br>";
// Write list of file names to file
for ($x = 0; $x <= $inputFileCount; $x++) {
if(false === fwrite($tempFile, $fileNames)) throw new \RuntimeException("Failed to write to file");
}
// Close temp file
if(false === fclose($tempFile)) throw new \RuntimeException("Failed to close file");
} catch ( Exception $e ) {
// send error message if you can
echo 'Caught exception: ', $e->getMessage(), "\n";
}
你应该得到一些例外
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