PHP正则获取页面所有图片地址

<?php
//取得页面所有的图片地址
function getimages($str)
{
$match_str = "/((http://)+([^ rn()^$!`"'|[]{}<>]*)((.gif)|(.jpg)|(.bmp)|(.png)|(.GIF)|(.JPG)|(.PNG)|(.BMP)))/";
preg_match_all ($match_str,$str,$out,PREG_PATTERN_ORDER);
return $out;
}
?>

preg_match_all("/<img .*srcs*=s*["|']?s*([^ alt="PHP正则获取页面所有图片地址" >"'s]*)/i",str_ireplace("\","",$content),$arr);

<?php
$ext = 'gif|jpg|jpeg|bmp|png';//罗列图片后缀从而实现多扩展名匹配
$str = '<p><img title="绿色软件" alt="绿色软件" onload="ResizeImage(this,860)" src="data/soft_img/2010091101619.jpg" /></p><p><img title="绿色软件" alt="绿色软件" onload="ResizeImage(this,860)" src="data/soft_img/2010091029938.jpg" /></p>
                    <div class="aritcle_card">
                        <a class="aritcle_card_img" href="/ai/992">
                            <img src="https://img.php.cn/upload/ai_manual/000/000/000/175680267675436.jpg" alt="阿里妈妈·创意中心">
                        </a>
                        <div class="aritcle_card_info">
                            <a href="/ai/992">阿里妈妈·创意中心</a>
                            <p>阿里妈妈营销创意中心</p>
                            <div class="">
                                <img src="/static/images/card_xiazai.png" alt="阿里妈妈·创意中心">
                                <span>45</span>
                            </div>
                        </div>
                        <a href="/ai/992" class="aritcle_card_btn">
                            <span>查看详情</span>
                            <img src="/static/images/cardxiayige-3.png" alt="阿里妈妈·创意中心">
                        </a>
                    </div>
                <p><img title="绿色软件" alt="绿色软件" onload="ResizeImage(this,860)" src="data/soft_img/2010092839019.jpg" /></p>';
preg_match_all("/(href|src)=(["|']?)([^ "'>]+.($ext))\2/i", $str, $matches);
var_dump($matches);
?>

array(5) {
[0]=>
array(3) {
[0]=>
string(57) "src="data/soft_img/2010091101619.jpg""
[1]=>
string(57) "src="sonyericsson/w715/ 2010091029938.jpg""
[2]=>
string(57) "src="data/soft_img/2010092839019.jpg""
}
[1]=>
array(3) {
[0]=>
string(3) "src"
[1]=>
string(3) "src"
[2]=>
string(3) "src"
}
[2]=>
array(3) {
[0]=>
string(1) """
[1]=>
string(1) """
[2]=>
string(1) """
}
[3]=>
array(3) {
[0]=>
string(51) "data/soft_img/2010091101619.jpg"
[1]=>
string(51) "data/soft_img/2010091029938.jpg"
[2]=>
string(51) "data/soft_img/2010092839019.jpg"
}
[4]=>
array(3) {
[0]=>
string(3) "jpg"
[1]=>
string(3) "jpg"
[2]=>
string(3) "jpg"
}
}

$newstext=preg_replace(preg_replace('/(<img [^ alt="PHP正则获取页面所有图片地址" >]+srcs*=s*”?([^>"s]+)”?[^>]*>)/im', ‘<a href=”$2″>$1</a>', $newstext);