Ésta es una mejora de la respuesta anterior que maneja cambia el tamaño de terminal y usa 2 líneas en lugar de 1. La primera línea es información como el tiempo/porcentaje de la segunda línea es la barra de progreso.
<?
/*
Copyright (c) 2010, dealnews.com, Inc.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of dealnews.com, Inc. nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
/**
* show a status bar in the console
*
* <code>
* for($x=1;$x<=100;$x++){
*
* show_status($x, 100);
*
* usleep(100000);
*
* }
* </code>
*
* @param int $done how many items are completed
* @param int $total how many items are to be done total
* @param int $size optional size of the status bar
* @return void
*
*/
function show_status($done, $total, $size=30, $lineWidth=-1) {
if($lineWidth <= 0){
$lineWidth = $_ENV['COLUMNS'];
}
static $start_time;
// to take account for [ and ]
$size -= 3;
// if we go over our bound, just ignore it
if($done > $total) return;
if(empty($start_time)) $start_time=time();
$now = time();
$perc=(double)($done/$total);
$bar=floor($perc*$size);
// jump to the begining
echo "\r";
// jump a line up
echo "\x1b[A";
$status_bar="[";
$status_bar.=str_repeat("=", $bar);
if($bar<$size){
$status_bar.=">";
$status_bar.=str_repeat(" ", $size-$bar);
} else {
$status_bar.="=";
}
$disp=number_format($perc*100, 0);
$status_bar.="]";
$details = "$disp% $done/$total";
$rate = ($now-$start_time)/$done;
$left = $total - $done;
$eta = round($rate * $left, 2);
$elapsed = $now - $start_time;
$details .= " " . formatTime($eta)." ". formatTime($elapsed);
$lineWidth--;
if(strlen($details) >= $lineWidth){
$details = substr($details, 0, $lineWidth-1);
}
echo "$details\n$status_bar";
flush();
// when done, send a newline
if($done == $total) {
echo "\n";
}
}
No sé por qué el código anterior tiene una licencia Estoy copiarlo para estar seguro. El código de abajo no tiene licencia. Libre de usar para cualquier propósito.
function formatTime($sec){
if($sec > 100){
$sec /= 60;
if($sec > 100){
$sec /= 60;
return number_format($sec) . " hr";
}
return number_format($sec) . " min";
}
return number_format($sec) . " sec";
}
class Timer {
public $time;
function __construct(){
$this->start();
}
function start($offset=0){
$this->time = microtime(true) + $offset;
}
function seconds(){
return microtime(true) - $this->time;
}
};
// We need this to limit the frequency of the progress bar. Or else it
// hugely slows down the app.
class FPSLimit {
public $frequency;
public $maxDt;
public $timer;
function __construct($freq){
$this->setFrequency($freq);
$this->timer = new Timer();
$this->timer->start();
}
function setFrequency($freq){
$this->frequency = $freq;
$this->maxDt = 1.0/$freq;
}
function frame(){
$dt = $this->timer->seconds();
if($dt > $this->maxDt){
$this->timer->start($dt - $this->maxDt);
return true;
}
return false;
}
};
class Progress {
// generic progress class to update different things
function update($units, $total){}
}
class SimpleProgress extends Progress {
private $cols;
private $limiter;
private $units;
private $total;
function __construct(){
// change the fps limit as needed
$this->limiter = new FPSLimit(10);
echo "\n";
}
function __destruct(){
$this->draw();
}
function updateSize(){
// get the number of columns
$this->cols = exec("tput cols");
}
function draw(){
$this->updateSize();
show_status($this->units, $this->total, $this->cols, $this->cols);
}
function update($units, $total){
$this->units = $units;
$this->total = $total;
if(!$this->limiter->frame())
return;
$this->draw();
}
}
// example
$tasks = rand() % 700 + 600;
$done = 0;
$progress = new SimpleProgress();
for($done = 0; $done <= $tasks; $done++){
usleep((rand() % 127)*100);
$progress->update($done, $tasks);
}
Me acaba de lanzar mi progressbar: https://github.com/Ex3v/PHP-ProgressBar – ex3v