Using regular expressions to verify whether Chinese strings are included.
[code]$str=.quot;.Lt; br.gt; beyond PHP:.quot;
if (preg_match (.Quot; /^.#91;.Quot); Quot; this is not a pure Chinese string.Quot;
}
[/code]
or
[code]/^ (.#91; \x00-\x7F.#93; |.#91; \x80-\xFE.#93;.#91;)