查找 [链接] 和 [/链接] 之间的所有 URL 并将其替换为超链接

Question

我在制作或找到一个可以转动的脚本时遇到麻烦

[link]https://google.com[/link]

到

<a href="https://google.com">https://google.com</a>

等等。我试过这些东西...

$message = str_replace("[link]", "<a href="", $message);
$message = str_replace("[/link]", "" target="_blank">LINK</a>", $message);

preg_match('@((https?://)?([-\w]+\.[-\w\.]+)+\w(:\d+)?(/([-\w/_\.]*(\?\S+)?)?)*)@', $message, $url);
foreach($url as $link){
  $between = get_string_between($fullstring, '[link]', '[/link]');
  $message = str_replace("[link]", "<a href="", $message);
  $message = str_replace("[/link]", "" target="_blank">$between</a>", $message);
}

function get_string_between($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);
}
preg_match('@((https?://)?([-\w]+\.[-\w\.]+)+\w(:\d+)?(/([-\w/_\.]*(\?\S+)?)?)*)@', $message, $url);
foreach($url as $link){
  $message = str_replace("[link]", "<a href="", $message);
  $message = str_replace("[/link]", "" target="_blank">LINK</a>", $message);
}

但错误是输出不是

<a href="https://google.com">https://google.com</a>

但

<a href="https://google.com">LINK</a>

或者每次都使用相同的$between变量

<a href="https://gyazo.com/f8df70551ddf79c5f5a841b904324db7">https://gyazo.com/f8df70551ddf79c5f5a841b904324db7</a>
<a href="https://google.com">https://gyazo.com/f8df70551ddf79c5f5a841b904324db7</a>

我用 preg_match(( 尝试过的代码得到了很多随机的东西。

Array(
  [0] => https://gyazo.com/f8df70551ddf79c5f5a841b904324db7
  [1] => https://gyazo.com/f8df70551ddf79c5f5a841b904324db7
  [2] => https://
  [3] => gyazo.co
  [4] => 
  [5] => /f8df70551ddf79c5f5a841b904324db7
  [6] => f8df70551ddf79c5f5a841b904324db7
)

是

的，我已经尝试了其他一些过滤器，然后是这里描述的。

Answer 1

<?php
function PregGet( $text, $regex ) {
    preg_match_all( $regex, $text, $matches );
    return $matches[2];
}
function PregReplace( $text, $regex, $replace ) {
    return preg_replace( $regex, $replace, $text );
}
$text    = '[link]https://google.com[/link] <br>[link]https://yahoo.com[/link]';
$matches = PregGet( $text, '([(link)](.*?)[/(link)])' );
foreach ( $matches as $match ) {
    $a = str_replace('[link]', '', str_replace('[/link]', '', $match))
    $text = PregReplace( $text, '([(link)](' . $a . ')[/(link)])', '<a href="' . $a . '">' . $a . '</a>' );
}

Answer 2

你可以删除"[link]"和"[/link]"，然后，获取实际的URL并构建链接：

<?php
$links = array(
    '[link]https://google.com[/link]',
    '[link]https://gyazo.com/f8df70551ddf79c5f5a841b904324db7[/link]'
);
foreach ($links as $link){
    $link = str_replace('[link]', '', $link);
    $link = str_replace('[/link]', '', $link);
    $message = '<a href="'. $link . '">' . $link . '</a>';
    echo $message . "n";
}

这输出：

<a href="https://google.com">https://google.com</a>
<a href="https://gyazo.com/f8df70551ddf79c5f5a841b904324db7">https://gyazo.com/f8df70551ddf79c5f5a841b904324db7</a>

Answer 3

嗨，您可以在 [link]

[/link] 块之间找到字符串。看到这里。

function get_string_between($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);
}
$message = "[link]https://google.com[/link]";
$url = get_string_between($message, '[link]', '[/link]');
$message = str_replace("[link]", "<a href="", $message);
$message = str_replace("[/link]", "" target="_blank">".$url."</a>", $message);
echo $message

希望这对您有所帮助。