PHP在终端中实现进度条来处理数据的示例详解

<?php

// 设置总任务数
$totalTasks = 100;

// 初始化进度条
$progressBar = new ProgressBar($totalTasks);

// 模拟任务处理
for ($i = 1; $i <= $totalTasks; $i++) {
    // 执行任务
    // 这里可以是你的任务处理逻辑

    // 更新进度条
    $progressBar->update($i);
    usleep(100000); // 模拟任务执行时间，单位是微秒（1秒 = 1000000 微秒）
}

// 完成后，输出新行
$progressBar->finish();
echo "\n";

// 进度条类的定义
class ProgressBar
{
    protected $total;
    protected $barLength;
    protected $current = 0;

    public function __construct($total, $barLength = 50)
    {
        $this->total = $total;
        $this->barLength = $barLength;
        $this->draw();
    }

    public function update($current)
    {
        $this->current = $current;
        $this->draw();
    }

    public function draw()
    {
        $progress = ($this->current / $this->total);
        $bar = floor($this->barLength * $progress);

        echo "\r[";
        echo str_repeat("=", $bar);
        echo str_repeat(" ", $this->barLength - $bar);
        echo "] " . number_format($progress * 100, 2) . "%";
    }

    public function finish()
    {
        $this->update($this->total);
    }
}