php gb2312怎么转换为utf8

php gb2312转换为utf8的方法：1、打开相应的PHP文件；2、检查原始编码；3、通过使用preg_replace和iconv函数将gb2312页面转换为utf8页面即可。

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本文操作环境：Windows7系统、PHP7.1、Dell G3电脑。

php gb2312怎么转换为utf8？

PHP gb2312页面转换为utf8页面

用到2个函数 preg_replace, iconv

$html = preg_replace('/charset=gb2312/', 'charset=UTF8', $html); // $enc = mb_detect_encoding($html); $html = iconv('gbk', 'utf-8', $html);
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https://php.net/manual/en/function.iconv.php
https://www.php.net/manual/en/function.preg-replace.php

参考php官网的示例

Example #2 Using indexed arrays with preg_replace()<?php$string = 'The quick brown fox jumps over the lazy dog.';$patterns = array();$patterns[0] = '/quick/';$patterns[1] = '/brown/';$patterns[2] = '/fox/';$replacements = array();$replacements[2] = 'bear';$replacements[1] = 'black';$replacements[0] = 'slow';echo preg_replace($patterns, $replacements, $string);?>Example #1 iconv() example<?php$text = "This is the Euro symbol '€'.";echo 'Original : ', $text, PHP_EOL;echo 'TRANSLIT : ', iconv("UTF-8", "ISO-8859-1//TRANSLIT", $text), PHP_EOL;echo 'IGNORE : ', iconv("UTF-8", "ISO-8859-1//IGNORE", $text), PHP_EOL;echo 'Plain: ', iconv("UTF-8", "ISO-8859-1", $text), PHP_EOL;?>
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* testurl.php

<?php/** * Created by PhpStorm. * User: mingzhanghui * Date: 8/30/2019 * Time: 09:38 */function __autoload($className) {include dirname(__FILE__).'/lib/'.$className.'.php';}header('Content-Type: text/html; charset=UTF8');// http://47.93.27.106:8064/testurl.php?url=https://www.sk666.vip$url = $_GET['url'];try {$html = Curl::testURL($url);$html = preg_replace('/charset=gb2312/', 'charset=UTF8', $html);// $enc = mb_detect_encoding($html);$html = iconv('gbk', 'utf-8', $html);echo $html;} catch (Exception $e) {Response::fail($e->getMessage(), $e->getCode());}
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* Curl.php

<?php/** * Created by PhpStorm. * User: mingzhanghui * Date: 8/29/2019 * Time: 15:34 */class Curl{/** * @param $map * @return string */public static function buildQuery(/* array */ $map) {$a = [];array_walk($map, function($value, $name) use (&$a) {array_push($a, sprintf("%s=%s", urlencode($name), urlencode($value)));});return implode('&', $a);}/** * https://www.ft12.com * @param $u * @return mixed * @throws Exception */public static function shortURL($u) {$api = "http://api.ft12.com/api.php";return self::get($api, ['url' => $u,'apikey' => '******', // 发邮件至aiqing174@qq.com索取apikey]);}public static function testURL($u) {$api = "http://qbview.url.cn/getResourceInfo";return self::get($api, ['appid' => 31,'url' => $u]);}/** * @param $host string * @param $params array assoc * @return mixed * @throws Exception */protected static function get($host, $params) {$ch = curl_init();$headers = ["Accept: application/json","X-Requested-with: XMLHttpRequest",];$qs = self::buildQuery($params);$fullURL = sprintf("%s?%s", $host, $qs);curl_setopt_array($ch, [CURLOPT_URL => $fullURL,CURLOPT_HEADER => 0,CURLOPT_RETURNTRANSFER => 1,CURLOPT_HTTPHEADER => $headers,CURLOPT_CONNECTTIMEOUT => 5]);$data = curl_exec($ch);$errno = curl_errno($ch);if ($errno) {throw new Exception("%s\n", curl_error($ch), $errno);}curl_close($ch);return $data;}}
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原网页内容如下:

<html><head><meta http-equiv="Content-Language" content="zh-CN"><meta http-equiv="content-type" content="text/html; charset=gb2312"><meta id="viewport" name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0"><meta content="telephone=no" name="format-detection"><link rel="stylesheet" type="text/css" href="http://rd.wechat.com/static/zh_CN/default/css/redirect_confirm.css?v=1375841702"><title>͡ʾ</title><style>.container { }.sectionContent { text-shadow:0 1px 0 #f5f5f5;font-size:18px; }.sectionPannel {}.firstP .lastP{ text-shadow:0 1px 0 #f5f5f5;}.lastP { font-size:14px; }a.normalLink { font-size:14px;text-decoration:none;color:#1587C1;font-weight:bold;text-shadow:0 1px 0 #f5f5f5; }.confirm{padding:20px 15px;}.confirm a.icon_info { display:block;border-radius:20px;background:#999;font-weight:bold;font-size:14px;color:#eee;text-shadow:0 1px 0 #333;border-top:1px solid #ddd;border-bottom:1px solid #fff;width:20px;height:20px;line-height:20px;margin:0 auto;text-decoration:none;padding:0;font-family:Georgia; }.confirm .greenBtn b{font-weight:400}.minorLink {margin-top: 20px;padding:10px;font-weight:normal;font-size:14px;text-shadow:0 1px 0 #f5f5f5;text-decoration:none;color:#737373;line-height:1.5;background:transparent url("http://rd.wechat.com/static/zh_CN/default/img/bg_line.png?v=") no-repeat top center;}.sectionPannel .sectionContent .url{max-height:100%;}.url_box{ margin: 5px; padding: 5px 0; border-top: 1px solid #B5B5B5; border-bottom: 1px solid #B5B5B5; box-shadow: inset 0 1px 0px #FEFEFE, 0 1px 0px #FEFEFE;}.url_box .url_wrp{margin: 0; max-height: 72px; overflow: hidden;}.icon_warn{height:160px;background:url("http://rd.wechat.com/static/zh_CN/default/img/icon_warn.png?v=") no-repeat center;margin-bottom:20px;-webkit-background-size:160px;background-size:160px;}.icon_link{height:100px;background:url("http://rd.wechat.com/static/zh_CN/default/img/icon_link.png?v=") no-repeat center;margin-bottom:20px;-webkit-background-size:100px;background-size:100px;}@media all and (-webkit-min-device-pixel-ratio: 1.5) {.icon_warn{background-image:url("http://rd.wechat.com/static/zh_CN/default/img/icon_warn_1.5x.png?v=");-webkit-background-size:160px;background-size:160px;}.icon_link{background-image:url("http://rd.wechat.com/static/zh_CN/default/img/icon_link_1.5x.png?v=");-webkit-background-size:160px;background-size:160px;}.minorLink{background-image:url("http://rd.wechat.com/static/zh_CN/default/img/bg_line_1.5x.png?v=");-webkit-background-size:320px 6px;background-size:320px 6px;}}</style></head><body><!-- Ԑɽ¸?1%mtt_original_url£¬֢ˇһ¸?§·ĎʵŔʼurl2 %mtt_qbview_url£¬ѨҪ³ꈡ+תëµõrl£¬ԲĻט¶¨в+³ꈡ±늶3 %mtt_proxy_url£¬ ǕͨOאתµŐ鈳¡£--><section class="container"><p class="confirm" style="padding-top:0"><!--alertIcon1 use for state1,alertIcon2 use for state2--><p class="sectionicon_link"></p><p class="section sectionPannel"><p class="sectionContent" style="margin-bottom:20px;word-break: break-all"><p class="url firstP" style="color:#737373;font-size:14px;">ţ½«Ҫ·Ďʵ<p class="url_box"><p class="url_wrp" id="url">https://www.sk666.vip</p></p><p style="color:red">´畚°²ȫ·萕£¬Ϊ±£֏źµİ²ȫ£¬ӑ°?9½ء£</p></p></p></p></p></section>
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