跳至
/**
* 获取文章第一张图片做为缩略图
* @param $content
* @return bool|string
*/
private static function thumb($content){
$content = stripslashes($content);
if(preg_match_all("/(src)=([\"|']?)([^ \"'>]+\.(gif|jpg|jpeg|bmp|png))\\2/i", $content, $matches)) {
$str = $matches[3][0];
$str = substr($str, 6);
if (preg_match('/upload/', $str)) {
return $str;
}
}
return '';
}
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