58 lines
1.5 KiB
PHP
58 lines
1.5 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* This is my open source code, please do not use it for commercial applications.
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* For the full copyright and license information,
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* please view the LICENSE file that was distributed with this source code
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*
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* @author Yuandong<837215079@qq.com>
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* @link https://github.com/gzydong/hyperf-chat
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*/
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namespace App\Helpers;
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/**
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* 字符串助手类
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* Class StringHelper
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*
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* @package App\Helper
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*/
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class StringHelper
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{
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/**
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* 替换文本中的url 为 a标签
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*
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* @param string $str 字符串
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* @return null|string|string[]
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*/
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public static function formatUrlLink(string $str)
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{
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$re = '@((https|http)?://([-\w\.]+)+(:\d+)?(/([\w/_\-.#%]*(\?\S+)?)?)?)@';
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return preg_replace_callback($re, function ($matches) {
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return sprintf('<a href="%s" target="_blank">%s</a>', trim($matches[0], '"'), $matches[0]);
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}, $str);
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}
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/**
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* 从HTML文本中提取所有图片
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*
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* @param string $content HTML文本
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* @return array
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*/
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public static function getHtmlImage(string $content): array
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{
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$pattern = "/<img.*?src=[\'|\"](.*?)[\'|\"].*?[\/]?>/";
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preg_match_all($pattern, htmlspecialchars_decode($content), $match);
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$data = [];
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if (!empty($match[1])) {
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foreach ($match[1] as $img) {
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if (!empty($img)) $data[] = $img;
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}
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return $data;
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}
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return $data;
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}
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}
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