正则表达式单词所有字母

Question

我正在尝试写一些正则表达式来匹配用任何字符写的单词，并使用preg_replace突出显示它们

范例：

Search "cera" in "my sentence which contain cera, or Céra CErA or even cERa"

预期收益：

my sentence which contain <span class="highlight">cera</span>, or <span class="highlight">Céra</span> and <span class="highlight">CErA</span> or even <span class="highlight">cERa</span>"

这是我的正则表达式，但是它不起作用吗？

$string = preg_replace('\bcera\b\p{L}', '<span class="highlight">$1</span>', $text);

Answer 1

此函数同时返回正则表达式搜索以查找值。 $ text和$ search设置为演示

function txt_replace($search) {
    mb_regex_encoding('UTF-8');
    $match=Array("aáàâäåãAÁÀÂÄÅÃ","cçCÇ","eéèêëEÉÈÊË","iíìîïIÍÌÎÏ","nñNÑ","oóòôöõOÓÒÔÖÕ","uúùûüUÚÙÛÜ","yÿýYÝ","æÆ", "ɶŒœ");   
    foreach($match as $key => $value) {
            $search=mb_ereg_replace("([$value])", "[$value]*", $search);
    }
    return "({$search})";
}

$text="sàlut bonjour new york salut";
$search="sàlut";
$string=preg_replace('/'.txt_replace($search).'/i','<span class="highlight">$1</span>', $text);
echo $string;

Answer 2

试试$string = preg_replace('/(c[e|é|è]ra)/i{L}', '<span class="highlight">$1</span>', $text);

我删除了\\ bi，看不到为什么使用了。