如何执行 preg_replace() 来删除除“Post”之外的任何内容还是“帖子”?

发布于 2024-11-08 22:23:08 字数 79 浏览 0 评论 0原文

我有一个字符串,它返回各种内容,如数字、空格等。我想要的只是“Post”或“Posts”。有人可以给我一个如何在 PHP 中执行此操作的示例吗?

I have a string that returns various stuff like numbers, spaces, etc. All I want from it is just "Post" or "Posts". Can someone give me an example of how to do this in PHP?

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背叛残局 2024-11-15 22:23:08

是的,像这样使用 preg_match

$myData = "There are 15 posts in this forum.";
preg_match("/Posts?/", $myData, $results);
if($results[0][0] === "Posts") {
     // It was "posts"
} else {
     // Assume it was "post"
}

Yup, use preg_match like so:

$myData = "There are 15 posts in this forum.";
preg_match("/Posts?/", $myData, $results);
if($results[0][0] === "Posts") {
     // It was "posts"
} else {
     // Assume it was "post"
}
清眉祭 2024-11-15 22:23:08
$post = preg_replace('/.*(Posts?).*/', '$1', $string);

如果您只想检测单词 Post 是否在字符串中,那么使用 strpos() 会更有效。

if (strpos($string, 'Post') !== FALSE) {
   ... Post  is present ...
}
$post = preg_replace('/.*(Posts?).*/', '$1', $string);

If you just want to detect if the word Post is in the string, then using strpos() would be far more efficient.

if (strpos($string, 'Post') !== FALSE) {
   ... Post  is present ...
}
神妖 2024-11-15 22:23:08

如果您正在测试字符串是否包含单词“Posts”,那么您可以使用如下内容:

if (preg_match("/Posts/i", $theString)) {
  // do something
}

if you are testing to see if the string contains the word "Posts" then you could use something like this:

if (preg_match("/Posts/i", $theString)) {
  // do something
}
清眉祭 2024-11-15 22:23:08

如果我没看错的话,似乎您不需要字符串 Post/Posts,只要它们存在即可。如果是这种情况,最快的方法是使用 strpos函数。您可以按如下方式使用它:

if( strpos($haystack,"Post") !== false ) {
    //You get here if Post or Posts was found.
}

If I'm reading that correctly, it seems that you don't need the string Post/Posts, just if they exist. If that is the case the fastest way would be to use the strpos function. You could use it as follows:

if( strpos($haystack,"Post") !== false ) {
    //You get here if Post or Posts was found.
}
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