<?php
 namespace TechSoft\Laravel\Util; use Illuminate\Support\Str; use TechSoft\Laravel\Assets\AssetsUtil; use TechSoft\Laravel\Data\DataUtil; class HtmlUtil { public static function replaceImageSrcToLazyLoad($content, $dataAttr = 'data-src', $useAssets = false) { preg_match_all('/(<img.*?)src="(.*?)"(.*?>)/i', $content, $mat); if ($useAssets) { foreach ($mat[0] as $k => $v) { $content = str_replace($v, $mat[1][$k] . $dataAttr . '="' . DataUtil::fix($mat[2][$k]) . '"' . $mat[3][$k], $content); } } else { foreach ($mat[0] as $k => $v) { $content = str_replace($v, $mat[1][$k] . $dataAttr . '="' . DataUtil::fix($mat[2][$k]) . '"' . $mat[3][$k], $content); } } return $content; } public static function replaceImageSrcToFull($content, $useAssets = false) { preg_match_all('/(<img.*?)src="(.*?)"(.*?>)/i', $content, $mat); foreach ($mat[0] as $k => $v) { $content = str_replace($v, $mat[1][$k] . 'src="' . DataUtil::fixFull($mat[2][$k]) . '"' . $mat[3][$k], $content); } return $content; } public static function extractTextAndImages($content) { $summary = [ 'text' => '', 'images' => [] ]; $text = preg_replace('/<[^>]+>/', '', $content); $summary['text'] = $text; preg_match_all('/<img.*?src="(.*?)".*?>/i', $content, $mat); if (!empty($mat[1])) { $summary['images'] = $mat[1]; } return $summary; } public static function cover($content) { preg_match_all('/<img.*?src="(.*?)".*?>/i', $content, $mat); if (!empty($mat[1][0])) { return $mat[1][0]; } return null; } public static function text($content, $limit = null) { $text = preg_replace('/<[^>]+>/', '', $content); if (null !== $limit) { $text = Str::limit($text, $limit); } return $text; } public static function filter($content) { return clean($content, [ 'HTML.Allowed' => 'b,strong,i,em,u,a[href|title],ul,ol,li,p[style],br,span[style],img[style|width|height|alt|src],span,br,h1,h2,h3,h4,h5,blockquote', 'CSS.AllowedProperties' => 'font,font-size,font-weight,font-style,font-family,text-decoration,padding-left,color,background-color,text-align,max-width,border,width', 'AutoFormat.AutoParagraph' => true, 'AutoFormat.RemoveEmpty' => true, 'CSS.MaxImgLength' => null, ]); } public static function filter2($content) { preg_match_all('/<iframe.*?<\\/iframe>/i', $content, $mat1); preg_match_all('/<audio.*?<\\/audio>/i', $content, $mat2); $replaces = [ 'search' => [], 'replace' => [], ]; $index = 0; foreach (array_merge($mat1[0], $mat2[0]) as $v) { $replaces['search'][] = $v; $replaces['replace'][] = '--iframe--' . ($index++) . '--'; } $content = str_replace($replaces['search'], $replaces['replace'], $content); $content = clean($content, [ 'HTML.Allowed' => 'b,strong,i,em,u,a[href|title],ul,ol,li,p[style],br,span[style],img[style|width|height|alt|src],span,br,h1,h2,h3,h4,h5,blockquote', 'CSS.AllowedProperties' => 'font,font-size,font-weight,font-style,font-family,text-decoration,padding-left,color,background-color,text-align,max-width,border,width', 'AutoFormat.AutoParagraph' => true, 'AutoFormat.RemoveEmpty' => true, 'CSS.MaxImgLength' => null, ]); return str_replace($replaces['replace'], $replaces['search'], $content); } public static function text2html($text, $htmlspecialchars = true) { if (empty($text)) { return ''; } if ($htmlspecialchars) { $text = htmlspecialchars($text, ENT_QUOTES, 'UTF-8', false); } $text = str_replace("\r", '', $text); $text = str_replace("\n", '</p><p>', $text); $text = str_replace('<p></p>', '<p>&nbsp;</p>', $text); return '<p>' . $text . '</p>'; } public static function text2htmlSimpleRich($text, $htmlspecialchars = true) { $content = self::text2html($text, $htmlspecialchars); $content = preg_replace('|([\w\d]*)\s?(https?://([\d\w\.-]+\.[\w\.]{2,6})[^\s\]\[\<\>]*/?)|i', '<a href="$2" target="_blank">$0</a>', $content); return $content; } public static function html2text($text) { return str_replace(array( '</p>', '<p>' ), array( "\n", '' ), $text); } public static function workCount($content) { $content = preg_replace('/<[^>]+>/', '^', $content); preg_match_all('/[a-z0-9]+/i', $content, $mat); $englishCount = count($mat[0]); $content = str_replace('^', '', $content); $content = preg_replace('/[^\x{4e00}-\x{9fa5}]+/u', '', $content); $chineseCount = mb_strlen($content, 'utf-8'); return $englishCount + $chineseCount; } } 