gethostbyname
返回主机名对应的 IPv4地址
gethostbyname()
示例:
<span class="token php language-php"><span class="token delimiter important"><?php</span> <span class="token variable">$ip</span> <span class="token operator">=</span> <span class="token function">gethostbyname</span><span class="token punctuation">(</span><span class="token string double-quoted-string">"www.gitbox.net"</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token keyword">echo</span> <span class="token variable">$ip</span><span class="token punctuation">;</span> <span class="token delimiter important">?></span></span>