PHP 大神求救！怎样让这个 只替换一次即可！ 悬赏1元 已结束
// 内链处理
if (! ! $tags = $this->model->getTags()) {
// 将A链接保护起来
$rega = "/<a .*?>.*?<\/a>/i";
preg_match_all($rega, $data->content, $matches1);
foreach ($matches1[0] as $key => $value) {
$data->content = str_replace($value, '#rega:' . $key . '#', $data->content);
}
// 执行内链替换
foreach ($tags as $value) {
$data->content = str_replace($value->name, '<a href="' . $value->link . '" target="_blank">' . $value->name . '</a>', $data->content);
}
// 还原A链接
$pattern = '/\#rega:([0-9]+)\#/';
if (preg_match_all($pattern, $data->content, $matches2)) {
$count = count($matches2[0]);
for ($i = 0; $i < $count; $i ++) {
$data->content = str_replace($matches2[0][$i], $matches1[0][$matches2[1][$i]], $data->content);
}
}
}
