使用PHP检测纯文本格式的表情符号

Question

我想以以下形式更改表达式：[E-01] - [E-02] - [E-03] - [E-04] ...至<img src = "E-XX.png">我怎样才能做到这一点？输入$message = "Hello [E-02] World [E-01]";期望的输出Hello <img src="E-02.png"> World <img src="E-01.png">

Answer 1

Preg_replace是您的朋友：

$message = "Hello [E-02] World [E-01]";

$replaced = preg_replace('/\[(E-\d\d)\]/', '<img src="/assets/images/emoji/$1.png" height="20" width="20" />', $message);

echo $replaced;

输出：

Hello <img src="/assets/images/emoji/E-02.png" height="20" width="20" /> World <img src="/assets/images/emoji/E-01.png" height="20" width="20" />