PHP Safe::html_entity_decode方法代码示例

//.........这里部分代码省略.........
     // the end of line string for mail messages
     if (!defined('M_EOL')) {
         define('M_EOL', "\n");
     }
     // encode the subject line
     $subject = Mailer::encode_subject($subject);
     // make some text out of an array
     if (is_array($headers)) {
         $headers = implode(M_EOL, $headers);
     }
     // From: header
     if (!preg_match('/^From: /im', $headers)) {
         $headers .= M_EOL . 'From: ' . $from;
     }
     // Reply-To: header
     if (!preg_match('/^Reply-To: /im', $headers)) {
         $headers .= M_EOL . 'Reply-To: ' . $from;
     }
     // Return-Path: header --to process errors
     if (!preg_match('/^Return-Path: /im', $headers)) {
         $headers .= M_EOL . 'Return-Path: ' . $from;
     }
     // Message-ID: header --helps to avoid spam filters
     if (!preg_match('/^Message-ID: /im', $headers)) {
         $headers .= M_EOL . 'Message-ID: <uniqid.' . uniqid() . '@' . $context['host_name'] . '>';
     }
     // MIME-Version: header
     if (!preg_match('/^MIME-Version: /im', $headers)) {
         $headers .= M_EOL . 'MIME-Version: 1.0';
     }
     // arrays are easier to manage
     if (is_string($message)) {
         // turn HTML entities to UTF-8
         $message = Safe::html_entity_decode($message, ENT_QUOTES, 'UTF-8');
         $copy = $message;
         $message = array();
         $message['text/plain; charset=utf-8'] = $copy;
         unset($copy);
     }
     // turn attachments to some array too
     if (is_string($attachments)) {
         $attachments = array($attachments);
     } elseif (!is_array($attachments)) {
         $attachments = array();
     }
     // we only consider objects from this server
     $my_prefix = $context['url_to_home'] . $context['url_to_root'];
     // transcode objects that will be transmitted along the message (i.e., images)
     foreach ($message as $type => $part) {
         // search throughout the full text
         $head = 0;
         while ($head = strpos($part, ' src="', $head)) {
             $head += strlen(' src="');
             // a link has been found
             if ($tail = strpos($part, '"', $head + 1)) {
                 $reference = substr($part, $head, $tail - $head);
                 // remember local links only
                 if (!strncmp($reference, $my_prefix, strlen($my_prefix))) {
                     // local name
                     $name = urldecode(substr($reference, strlen($my_prefix)));
                     // content-id to be used instead of the link
                     $cid = sprintf('%u@%s', crc32($name), $context['host_name']);
                     // transcode the link in this part
                     $part = substr($part, 0, $head) . 'cid:' . $cid . substr($part, $tail);
                     // remember to put content in attachments of this message, if not done yet
                     if (!in_array($name, $attachments)) {

 /**
  * encode a sequence of HTML tags, or plain text, to PDF
  *
  * @param string the text to append
  * @return the content of PDF
  * @see articles/fetch_as_pdf.php
  */
 function encode($text)
 {
     global $context;
     //
     // meta information
     //
     // encode it to iso8859 -- sorry
     // document title
     if ($context['page_title']) {
         $this->SetTitle(utf8::to_iso8859(Safe::html_entity_decode($context['page_title'], ENT_COMPAT, 'ISO-8859-15')));
     }
     // document author
     if ($context['page_author']) {
         $this->SetAuthor(utf8::to_iso8859(Safe::html_entity_decode($context['page_author'], ENT_COMPAT, 'ISO-8859-15')));
     }
     // document subject
     if ($context['subject']) {
         $this->SetSubject(utf8::to_iso8859(Safe::html_entity_decode($context['subject'], ENT_COMPAT, 'ISO-8859-15')));
     }
     // document creator (typically, the tool used to produce the document)
     $this->SetCreator('yacs');
     //
     // PDF content
     //
     // start the rendering engine
     $this->AliasNbPages();
     $this->AddPage();
     $this->SetFont('Arial', 'B', 16);
     // reference view.php instead of ourself to achieve correct links
     $text = str_replace('/fetch_as_pdf.php', '/view.php', $text);
     // remove all unsupported tags
     $text = strip_tags($text, "<a><b><blockquote><br><code><div><em><font><h1><h2><h3><h4><hr><i><img><li><p><pre><strong><table><tr><tt><u><ul>");
     // spaces instead of carriage returns
     $text = str_replace("\n", ' ', $text);
     // transcode to ISO8859-15 characters
     $text = utf8::to_iso8859(Safe::html_entity_decode($text, ENT_COMPAT, 'ISO-8859-15'));
     // locate every HTML/XML tag
     $areas = preg_split('/<(.*)>/U', $text, -1, PREG_SPLIT_DELIM_CAPTURE);
     $height = 5;
     $link = '';
     foreach ($areas as $index => $entity) {
         // a tag entity
         if ($index % 2) {
             @(list($tag, $attributes) = explode(' ', $entity, 2));
             switch (strtolower($tag)) {
                 case 'a':
                     if (preg_match('/href="(.*)"/i', $attributes, $matches)) {
                         $link = $matches[1];
                         // suppress local references (eg, in table of content)
                         if (preg_match('/(#.*)/', $link)) {
                             $link = '';
                         } elseif ($link[0] == '/') {
                             $link = $context['url_to_home'] . $link;
                         }
                     }
                     break;
                 case 'b':
                     $this->SetFont('', 'B');
                     break;
                 case '/b':
                     $this->SetFont('', '');
                     break;
                 case 'blockquote':
                     $this->Ln($height);
                     break;
                 case '/blockquote':
                     $this->Ln($height);
                     break;
                 case 'br':
                     $this->Ln($height);
                     break;
                 case 'code':
                     $this->SetFont('Courier', '', 11);
                     $this->SetFontSize(11);
                     break;
                 case '/code':
                     $this->SetFont('Times', '', 12);
                     $this->SetFontSize(12);
                     break;
                 case 'div':
                 case '/div':
                     $this->Ln($height);
                     break;
                 case 'em':
                     $this->SetFont('', 'I');
                     break;
                 case '/em':
                     $this->SetFont('', '');
                     break;
                 case 'font':
                     if (preg_match('/color="#(.{6})"/i', $attributes, $matches)) {
                         $color = $matches[1];
                         $r = hexdec($color[0] . $color[1]);
//.........这里部分代码省略.........

    return;
}
// keep only titles and ISO8859-1 labels
$titles = array();
$links = array();
$count = 0;
foreach ($items as $url => $label) {
    // we are not interested into all attributes
    if (is_array($label)) {
        $label = $label[1];
    }
    // strip codes
    include_once '../../codes/codes.php';
    $label = Codes::strip($label);
    // remove every html tag
    $label = strip_tags(Safe::html_entity_decode($label));
    // remember this
    $titles[$count] = $label;
    $links[$count] = $url;
    $count++;
}
// cache handling --except on scripts/validate.php
if (!headers_sent() && (isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] == 'GET')) {
    // this is a schockwave object
    Safe::header('Content-Type: application/x-shockwave-flash');
    // enable 30-minute caching (30*60 = 1800), even through https, to help IE6 on download
    http::expire(1800);
    // the original content
    $page = '';
    for ($index = 0; $index < $count; $index++) {
        $page .= $titles[$index] . ':' . $links[$index] . ':';