チャットワークの絵文字（エモーティコン）を全部ダウンロードする

cw.php

<?php
/**
 * チャットワークの絵文字をダウンロードする
 *
 * 実行するとカレントディレクトリに画像ファイルをダウンロードします。
 * 
 */

$files = [
  "image/emoticon/emo_smile.gif",
  "image/emoticon/emo_sad.gif",
  "image/emoticon/emo_more_smile.gif",
  "image/emoticon/emo_lucky.gif",
  "image/emoticon/emo_surprise.gif",
  "image/emoticon/emo_wink.gif",
  "image/emoticon/emo_tears.gif",
  "image/emoticon/emo_sweat.gif",
  "image/emoticon/emo_mumu.gif",
  "image/emoticon/emo_kiss.gif",
  "image/emoticon/emo_tongueout.gif",
  "image/emoticon/emo_blush.gif",
  "image/emoticon/emo_wonder.gif",
  "image/emoticon/emo_snooze.gif",
  "image/emoticon/emo_love.gif",
  "image/emoticon/emo_grin.gif",
  "image/emoticon/emo_talk.gif",
  "image/emoticon/emo_yawn.gif",
  "image/emoticon/emo_puke.gif",
  "image/emoticon/emo_ikemen.gif",
  "image/emoticon/emo_otaku.gif",
  "image/emoticon/emo_ninmari.gif",
  "image/emoticon/emo_nod.gif",
  "image/emoticon/emo_shake.gif",
  "image/emoticon/emo_wry_smile.gif",
  "image/emoticon/emo_whew.gif",
  "image/emoticon/emo_clap.gif",
  "image/emoticon/emo_bow.gif",
  "image/emoticon/emo_roger.gif",
  "image/emoticon/emo_muscle.gif",
  "image/emoticon/emo_dance.gif",
  "image/emoticon/emo_komanechi.gif",
  "image/emoticon/emo_devil.gif",
  "image/emoticon/emo_star.gif",
  "image/emoticon/emo_heart.gif",
  "image/emoticon/emo_flower.gif",
  "image/emoticon/emo_cracker.gif",
  "image/emoticon/emo_cake.gif",
  "image/emoticon/emo_coffee.gif",
  "image/emoticon/emo_beer.gif",
  "image/emoticon/emo_handshake.gif",
  "image/emoticon/emo_yes.gif"
];

$cw_base_url = 'https://www.chatwork.com/';

foreach ($files as $file) {
    $url = $cw_base_url . $file;
    $cmd = 'curl -O %s';
    shell_exec(sprintf($cmd, escapeshellarg($url)));
}