PHP文本换行转函数nl2br()与nl2p()文本换行转p段落

<?php
        
$str = "Welcome to 
www.scutephp.com";
        
echo nl2br($str);
        
?>

Welcome to <br />
www.scutephp.com

<?php
function nl2p($text) {
  return "<p>" . str_replace("\n", "</p>
                    <div class="aritcle_card">
                        <a class="aritcle_card_img" href="/ai/1043">
                            <img src="https://img.php.cn/upload/ai_manual/001/503/042/68b6cbfc2f82e961.png" alt="微软文字转语音">
                        </a>
                        <div class="aritcle_card_info">
                            <a href="/ai/1043">微软文字转语音</a>
                            <p>微软文本转语音，支持选择多种语音风格，可调节语速。</p>
                            <div class="">
                                <img src="/static/images/card_xiazai.png" alt="微软文字转语音">
                                <span>0</span>
                            </div>
                        </div>
                        <a href="/ai/1043" class="aritcle_card_btn">
                            <span>查看详情</span>
                            <img src="/static/images/cardxiayige-3.png" alt="微软文字转语音">
                        </a>
                    </div>
                <p>", $text) . "</p>";
}
?>

/**
 * Returns string with newline formatting converted into HTML paragraphs.
 *
 * @param string $string String to be formatted.
 * @param boolean $line_breaks When true, single-line line-breaks will be converted to HTML break tags.
 * @param boolean $xml When true, an XML self-closing tag will be applied to break tags (<br />).
 * @return string
 */
function nl2p($string, $line_breaks = true, $xml = true)
{
    // Remove existing HTML formatting to avoid double-wrapping things
    $string = str_replace(array('<p>', '</p>', '<br>', '<br />'), '', $string);
       
    // It is conceivable that people might still want single line-breaks
    // without breaking into a new paragraph.
    if ($line_breaks == true)
        return '<p>'.preg_replace(array("/([\n]{2,})/i", "/([^>])\n([^<])/i"), array("</p>\n<p>", '<br'.($xml == true ? ' /' : '').'>'), trim($string)).'</p>';
    else
        return '<p>'.preg_replace("/([\n]{1,})/i", "</p>\n<p>", trim($string)).'</p>';
}