Command line progress bar in PHP

Question

I am currently trying to add a progress bar to a command line script and I\'ve tried various solutions (including Zend and Console_ProgressBar). The problem they both have i

Answer 1

Other answers seem overly complex. My solution is to simply echo \033[0G escape sequence before the next update and it moves the cursor back to the beginning.

function progressBar($done, $total) {
    $perc = floor(($done / $total) * 100);
    $left = 100 - $perc;
    $write = sprintf("\033[0G\033[2K[%'={$perc}s>%-{$left}s] - $perc%% - $done/$total", "", "");
    fwrite(STDERR, $write);
}

Calling the function for the first time outputs the progress bar and each subsequent call overwrites the last line with a new progress bar.

EDIT: I have changed echoing \r to the escape sequence \033[0G and this should now work on OSX as well as Linux/Unix.

EDIT 2: Fixed possible error on line 3 as per @tbjers suggestion.

EDIT 3: Updated with new version that prints to STDERR and now also on GitHub: https://github.com/MacroMan/PHPTerminalProgressBar

EDIT 4: Now with composer: composer require macroman/terminal-progress-bar

use TerminalProgress\Bar;

$pg = new Bar(1000);

for ($i = 0; $i < 1000; $i++) {
    usleep(10000);
    $pg->tick();
}