如何在php中的文本内找到自定义标签

Question

我在寻找PHP解决方案，我有一些带有一些自定义标记的HTML内容，例如

$html = "he approaches very silently towards him but at the last point of time, the man gets the hint and manages to escape from the attack. ,
[vid] youtubeURL/watch?time_continue=58&v=eED6VRcj1Rs [/vid] What happens in the latter is just breath-taking and comes with a reason why this video has gone viral in such short span of time";

我只想要下面提到的文本的输出：

[vid] youtubeURL/watch?time_continue=58&v=eED6VRcj1Rs [/vid]

   or
[vid] youtubeURL/watch?time_continue=58&v=eED6VRcj1Rs [Endvid]

$ FWithReplaceWord将是youtube“ v =” ID eED6VRcj1Rs

需要输出

<div class='embed-responsive embed-responsive-16by9 vid1'><iframe class='embed-responsive-item' src='//www.youtube.com/embed/$FWithReplaceWord' allowfullscreen></iframe></div>

我在用

preg_match_all('~([vid](.*?)[/vid])~', $html, $matches);

但是它不起作用。请帮帮我。

Answer 1

逻辑

<?php

$html = "he approaches very silently towards him but at the last point of time, the man gets the hint and manages to escape from the attack. , [vid] youtubeURL/watch?time_continue=58&v=eED6VRcj1Rs [/vid] What happens in the latter is just breath-taking and comes with a reason why this video has gone viral in such short span of time";

function getBetweenTwoStrings ($string, $start, $end) {
 $string = " ".$string;
 $ini = strpos($string, $start);
 if ($ini == 0) return "";
 $ini += strlen($start);
 $len = strpos($string, $end, $ini) - $ini;
 return substr($string, $ini, $len);
}

// Assuming you need in array as well
$tag[0] = "[vid]";
$tag[1] = getBetweenTwoStrings($html, "[vid]", "[/vid]");
$tag[2] = "[/vid]";

echo $tag[0];
echo $tag[1];
echo $tag[2];

?>

输出：

[vid] youtubeURL/watch?time_continue=58&v=eED6VRcj1Rs [/vid]

注意：

Now you can play around the way you want the output.