Find a regular expression and replace the emoticon of a rule with an emoticon icon (<img> emoticon ).

Find a regular expression, replace the emoticon of a rule with the expression icon (& lt; img & gt; expression), and find a regular expression, replace the emojis of a rule with the emoticon icon (& lt; img & gt; emoticon) [happy] with & lt; imgsrc = 'Images/Aug .png '/& gt; (is the naming rules for images in Chinese invalid ?) In fact, it is better to use JS to calculate a regular expression and replace the emoticons of a rule with emoticons (emoticons)
Find a regular expression and replace the emoticon of a rule with an emoticon icon (emoticon)

[Happy] is replaced by (the naming rules for images in Chinese are not standard ?)

In fact, it is better to use JS for comparison.

------ Solution --------------------
$ Str = '[happy] emoticon image ';
Echo preg_replace ('/\ [(. *) \]/', "", $ str );

------ Solution --------------------
This year, everything is regular...
It is not wise to use a Chinese name as a file name.

Function replaceStr ($ str ){
$ Str = substr ($ str, strpos ($ str, '[') + 1, strlen ($ str)-2 );
Return "";
}