This article shares with you several commonly used small functions in PHP. Friends who are interested can take a look, and friends in need can also refer to it
1. Get whether the website is http or https?
$http_type = ((isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on') || (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https')) ? 'https://' : 'http://';
2. Delete the empty data in the array,
function where_data($data) { foreach ($data as $k => $v) { if (empty($v) && $v !='0') { unset($data[$k]); } } return $data; }
3. Intercept part of the rich text
/** * 将富文本中文字截取其中的一部分 * @param $content * @return string */ function html_substr_content($content,$length=100) { $content = htmlspecialchars_decode($content); //把一些预定义的 HTML 实体转换为字符 $content = str_replace(" ", "", $content); //将空格替换成空 $content = strip_tags($content); //函数剥去字符串中的 HTML、XML 以及 PHP 的标签,获取纯文本内容 $con = mb_substr($content, 0, $length, "utf-8"); //返回字符串中的前100字符串长度的字符 return $con; }
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