str_rot13
文字列でROT13変換を実行します
文字列のエンコードとデコード:
<span class="token php language-php"><span class="token delimiter important"><?php</span> <span class="token keyword">echo</span> <span class="token function">str_rot13</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"I Love Shanghai"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span> <span class="token keyword">echo</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span> <span class="token keyword">echo</span> <span class="token function">str_rot13</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"v ybir funatunv"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span> <span class="token delimiter important">?></span></span>