command-line PHP script needs to write to stderr - Help

[ppowell]

<?

 class FileRemoval {

  var $fileNameArray, $isRemoved, $errorMsg = '';

  function FileRemoval() {
   $this->fileNameArray = array();
   $this->isRemoved = 0;
  }

  function getErrorMsg() {
   return $this->errorMsg;
  }

  function getIsRemoved() {
   return $this->isRemoved;
  }

  function setFileNameArray() {
   global $argv;
   $junk = array_shift($argv); // LOB OFF FIRST ARRAY ELEMENT YOU DON'T NEED THE SCRIPT NAME
   $this->fileNameArray = $argv;
  }

  function remove() {
   $this->setFileNameArray();
   if (sizeof($this->fileNameArray) == 0) {  

    $this->isRemoved = 0;
    $this->errorMsg = "No files provided for removal\n";
   }
   if (!$this->errorMsg) {
    foreach ($this->fileNameArray as $val) {
     if (!file_exists($val) || strlen($val) == 0) {
      $this->isRemoved = 0;
      $this->errorMsg = "File: $val does not exist\n";
      echo $this->errorMsg;
      break;
     }
    }
    if (!$this->errorMsg) @unlink($file);
   }
   if (!$this->errorMsg) $this->isRemoved = 1;
  }

  function writeErr() {
   if ($this->errorMsg) {
    $fileID = fopen('./cmds.err', 'r') or die("Could not find error log");
    $myErr = '[' . date("%d/%b/%Y:%H:%I:%S"). ']' . $this->errorMsg . "\n";
    fputs($fileID, $myErr);
    fflush($fileID);
    fclose($fileID);
    fwrite(STDOUT, $myErr);
   }
  }

 } 

 $fileRemoval =& new FileRemoval();
 $fileRemoval->remove();
 echo "**" . $fileRemoval->getIsRemoved();
 //if (!$fileRemoval->getIsRemoved()) $this->writeErr();
 $fileRemoval = null;

?>

I am writing a simple script that removes a list of files, using class structure to make it more elegant, however, upon any errors found such as "no file found" or "file length empty" or whatever, it should write to an error log file /cmds.err but I have no clue as to how to do that.

I read online about using exec() and passthru() and including this article: http://www.phpcrawler.de/phpmanual/features.commandline.php but so far I see no results in stdout, stderr, basically, nothing works whatsoever.

I don't know what else I can do at this point.

Help!
Phil

[ahundiak]

http://www.php.net/wrappers.php

[ppowell]

Thanx, but I honestly don't get it. How would I use php://input or php://output in the context of either what I've written or the requirement of removing a list of files?

The command-line PHP script will be called from an outside source:

php -q /../fileremoval.php $fileList

Phil

[ahundiak]

You would do something like
$stderr = fopen('php://stderr','w');
And then write any error messages to it.

It may that your problems is here:
$fileID = fopen('./cmds.err', 'r')
'r' should be 'w'

[ppowell]

yep, bring out the flogging whips.. the error was a total DUH on my part, and I got it, thanx

function writeErr() {
   if ($this->errorMsg) {
    $myErr = '[' . date("d/M/Y:H:i:s"). '] ' . $this->errorMsg . "\n";
    $fileID = fopen('./cmds.err', 'a') or die("Could not find error log");
    fputs($fileID, $myErr); fflush($fileID); fclose($fileID);
    $fileID = @fopen('php://stdout', 'a') or die("Could not open STDOUT");
    fputs($fileID, $myErr); fflush($fileID); fclose($fileID);
   }
  }

[ppowell]

Well the good news is that the method "writeErr" works, but the bad news is that the method "writeMsg" does not work, it in fact does absolutely nothing.

  function remove() {		// VOID METHOD
   $this->setFileNameArray();
   if (sizeof($this->fileNameArray) == 0) {  

    $this->isRemoved = 0;
    $this->errorMsg = "No files provided for removal\n";
   }
   if (!$this->errorMsg) {
    foreach ($this->fileNameArray as $val) {
     if (!file_exists($val) || strlen($val) == 0) {
      $this->isRemoved = 0;
      $this->errorMsg = "File: '$val' does not exist\n";
      break;
     }
     @unlink($val);
     $this->writeMsg($val);
    }
   }
   if (!$this->errorMsg) $this->isRemoved = 1;
  }

  function writeErr() {		// VOID METHOD
   if ($this->errorMsg) {
    $myErr = '[' . date("d/M/Y:H:i:s"). '] ' . $this->errorMsg;
    $fileID = @fopen('./cmds.err', 'a') or die("Could not find error log");
    fputs($fileID, $myErr); fflush($fileID); fclose($fileID);
    $fileID = @fopen('php://stdout', 'a') or die("Could not open STDOUT");
    fputs($fileID, $myErr); fflush($fileID); fclose($fileID);
   }
  }

  function writeMsg($file) {	// VOID METHOD
   $msg = "\nFile: '$file' has been deleted";
   if (@array_search($file, $this->fileNameArray) === @sizeof($this->fileNameArray) - 1) $msg .= "\n";
   $fileID = fopen('php://stdout', 'a') or die("Could not open STDOUT");
   fputs($fileID, $msg);
   fflush($fileID); fclose($fileID);
  }

is there some behavior about stdout and the class-to-method relationship going on that is preventing writeMsg from functioning while writeErr works just fine?

Phil