Question

我真的不知道为什么在银字字体上, 以“ ” 取代某些字符的子字符串?

我的守则

$string1 = get_the_content();
$string = strip_tags($string1);
$stringcutted = substr($string,0,150);
$replacement = "...";
$final = substr($stringcutted, 0, -3).$replacement;

看看它是如何在 html 上完成的

strange icon1 strange icon2

有办法吗?

Answer 1

因为 PHP 字符串函数基于字节字符串; 它们没有字符编码知识。所以在像 UTF-8 这样的字符可以使用多个字节的字符串函数中, 它无法按照您想要的方式工作 :

<?php 
 $x =  Подмосковные вечера ;
 print(strlen($x)."
");        # 37, not 19
 print(substr($x,0,1)."
");    # �, not П
 print(substr($x,0,2)."
");    # П, not По
?>

查看 < a href=> "http://php.net/manual/en/ref.mbstring.php" rel=“nofollow” > 多字串函数 ,如果你想操纵非 ASCII 文本的话。

Answer 2

您需要检查字符编码。基本上, 您有一个以一个格式编码的字符串, 然后用另一种格式重新选择它。

For international stuff (and it looks like you are doing that) then I d use UTF-8: - In your HTML file add in the head (near the top) - In your PHP, make sure you re handling all strings as UTF-8 - If you also have a database, make sure the database, the tables and and fields are all configured as UTF-8 (warning: making this change may corrupt exising data without import / export!). - If you are reading template files with special characters, also make sure those are UTF-8. (If no special characters, then normal AscII will do)

很简单的答案。有很多关于字符编码的读物- 只是谷歌而已。

(替代解决方案,使用 ASCII, 但将一切转换为网络友好字符代码。但是这更能让所有代码都正确, 特别是当处理用户输入时。 )

Answer 3

You have to manually define the charset. Use mb_substr(). It should help. http://php.net/manual/en/function.mb-substr.php

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