console-progress.php

<?php
/**
 * Show a status bar in the console.
 *
 * <code>
 * for ($x = 1; $x <= 100; ++$x) {
 *     show_status($x, 100);
 *     usleep(100000);
 * }
 * </code>
 *
 * Source: https://stackoverflow.com/questions/2124195/command-line-progress-bar-in-php
 *
 * @param int $done  how many items are completed
 * @param int $total how many items are to be done total
 * @param int $size  optional size of the status bar
 */
function consoleProgress($done, $total, $size = 30) {
    static $startTime;
    // if we go over our bound, just ignore it
    if ($done > $total) return;

    if (empty($startTime)) {
        $startTime = time();
    }
    $now = time();

    $perc = (float) ($done / $total);
    $bar  = floor($perc * $size);

    $statusBar  = "\r[";
    $statusBar .= str_repeat("=", $bar);
    if ($bar < $size) {
        $statusBar .= ">";
        $statusBar .= str_repeat(" ", $size - $bar);
    } else {
        $statusBar .= "=";
    }

    $disp = number_format($perc * 100, 0);

    $statusBar .= "] {$disp}%  {$done}/{$total}";

    $rate = ($now - $startTime) / $done;
    $left = $total - $done;
    $eta  = round($rate * $left, 2);

    $elapsed = $now - $startTime;

    $statusBar .= ' remaining: ' . number_format($eta) . ' sec.  elapsed: ' . number_format($elapsed) . ' sec.  ';

    echo $statusBar;

    flush();

    // when done, send a newline
    if ($done === $total) {
        echo "\n";
    }
}