PHP CLI Progress Indicator

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May 27th, 2004, 10:20 AM

errolbert

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Location: Oxford, MS USA

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PHP CLI Progress Indicator

I don't know if this is useful to anyone else, but I saw on the Perl forums someone else was looking for a solution to this . I finally had to break out my ASCII tables to figure out \010 is the backspace character I needed.

Anyway, if anyone is interested, I've written a simple progess bar for PHP command line interface (CLI) scripts. I've posted it, including comments, below.

PHP Code:


		
			
function progressBar($current, $total, $label)

{

    // This function assumes that you start with completion of 0%.

    

    // If the first time you call this function is with 1%

    // completion, you will delete the last 106 characters of

    // output from your program.

    

    // If this is the case, simply call this function before with

    // a hard coded 0.

    

    // check to see if this is the first go-round

    if ($current == 0)

    {

        // this is the first time so output the progess bar label

        if ($label == "")

            echo "Progress: ";

        else if ($label != "none")

            echo $label;

        

        // start the bar with a nice edge

        echo "|";

    }

    else

    {

        // this isn't the first time so remove the previous progress bar

        for ($place = 106; $place >= 0; $place--)

        {

            // echo a backspace to remove the previous character

            echo "\010";

        }

    }

    

    // output the progess bar as it should be

    for ($place = 0; $place <= 100; $place++)

    {

        // output stars if we're finished through this point

        // or spaces if not

        if ($place <= ($current / $total * 100))

            echo "*";

        else

            echo " ";

    }

    

    // end the bar with a nice edge and a label

    echo "| 100%";

    

    // check to see if this is the last go-round

    if ($current == $total)

    {

        // this is the end of the progress bar, output an end of line

        echo "\n";

    }

}

May 27th, 2004, 10:31 AM

draelon

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nice, but who uses php in command line? hehe

Comments on this post

kicken disagrees: I do

Noodles23 disagrees: So do I!

__________________
Draelon

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=======================================================

August 5th, 2009, 01:10 PM

mikiroro

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Join Date: Aug 2009

Posts: 1

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Reputation Power: 0

Not bad, but I've improved it.

PHP Code:


		
			
function progressBar($current=0, $total=100, $size=50)

{

  // first call must have $current=0,

  // otherwise you'll delete some last

  // part of your's app output

    

  // percent indicator must be four characters, if shorter, add some spaces

  $perc = ($current/$total)*100;

  for($i=strlen($perc); $i<=4; $i++)

    $perc = ' '.$perc;



  $total_size = $size + $i + 3;



  // if it's not first go, remove the previous bar

  if($current > 0)

  {

    for($place = $total_size; $place > 0; $place--)

    {

      // echo a backspace (hex:08) to remove the previous character

      echo "\x08";

    }

  }

    

  // output the progess bar as it should be

  for($place = 0; $place <= $size; $place++)

  {

    // output green spaces if we're finished through this point

    // or grey spaces if not

    if($place <= ($current / $total * $size))

      echo '[42m [0m';

    else

      echo '[47m [0m';

  }

    

  // end a bar with a percent indicator

  echo " $perc%";

    

  if($current == $total)

  {

    // if it's the end, add a new line

    echo "\n";

  }

}

@draelon: I do

Comments on this post

Noodles23 agrees: Nice work

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