<code><code class="language-php hljs" data-lang="php"><span style="display:flex;"><span><span style="color:#19177c">$user_agent</span> <span style="color:#666">=</span> <span style="color:#19177c">$_SERVER</span>[<span style="color:#ba2121">"HTTP_USER_AGENT"</span>]; </span></span><span 用 PHP 检测移动设备 style="display:flex;"><span><span style="color:#008000;font-weight:bold">if</span>(preg_match(<span style="color:#ba2121">"/(<strong class="keylink">Android</strong>|<strong class="keylink">WEB</strong>os|avant<strong class="keylink">Go</strong>|<a style="color:#f60; text-decoration:underline;" href=https://www.php.cn/faq/"https://www.php.cn/zt/16413.html" target="_blank">iphone</a>|ipod|ipad|bolt|boost|cricket|docomo|fone|hiptop|opera mini|mini|kitkat|mobi|palm|phone|pie|tablet|up.browser|up.link|webos|wos)/i"</span>,<span style="color:#19177c">$user_agent</span> )) </span></span><span style="display:flex;"><span>{ </span></span><span style="display:flex;"><span><span style="color:#008000;font-weight:bold">echo</span> <span style="color:#ba2121">"mobile device detected"</span>; </span></span><span style="display:flex;"><span>} </span></span><span style="display:flex;"><span><span style="color:#008000;font-weight:bold">else</span>{ </span></span><span style="display:flex;"><span><span style="color:#008000;font-weight:bold">echo</span> <span style="color:#ba2121">"mobile device not detected"</span>; </span></span><span style="display:flex;"><span>} </span></span></code></code>
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