shuffle
配列を破壊します
アレイ内の要素をランダムな順序で並べ替えます。
<span class="token php language-php"><span class="token delimiter important"><?php</span> <span class="token variable">$ my_array</span> <span class="token operator">=</span> <span class="token keyword">array</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"red"</span> <span class="token punctuation">、</span> <span class="token string double-quoted-string">"green"</span> <span class="token punctuation">、</span> <span class="token string double-quoted-string">"blue"</span> <span class="token punctuation">、</span> <span class="token string double-quoted-string">"Yellow"</span> <span class="token punctuation">、</span> <span class="token string double-quoted-string">"Purple"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span> <span class="token function"></span></span><mark><span class="token function">シャッフル</span><span class="token punctuation">(</span> <span class="token variable">$ my_array</span> <span class="token punctuation">)</span></mark><span class="token punctuation"></span> <span class="token punctuation">;</span> <span class="token function">print_r</span> <span class="token punctuation">(</span> <span class="token variable">$ my_array</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span> <span class="token delimiter important">?></span>
アレイ内の要素をランダムな順序で再配置します。
<span class="token php language-php"><span class="token delimiter important"><?php</span> <span class="token variable">$ my_array</span> <span class="token operator">=</span> <span class="token keyword">array</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"a"</span> <span class="token operator">=></span> <span class="token string double-quoted-string">"red"</span> <span class="token punctuation">、</span> <span class="token string double-quoted-string">"b"</span> <span class="token operator">=></span> <span class="token string double-quoted-string">"green"</span> <span class="token punctuation">、</span> <span class="token string double-quoted-string">"c"</span> <span class="token operator">=></span> <span class="token string double-quoted-string">"blue"</span> <span class="token punctuation">、</span> <span class="token string double-quoted-string">"d"</span> <span class="token operator">=></span> <span class="token string double-quoted-string">"Yellow"</span> <span class="token punctuation">、</span> <span class="token string double-quoted-string">"e"</span> <span class="token operator">=></span> <span class="token string double-quoted-string">"purple"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span> <span class="token function"></span></span><mark><span class="token function">シャッフル</span><span class="token punctuation">(</span> <span class="token variable">$ my_array</span> <span class="token punctuation">)</span></mark><span class="token punctuation"></span> <span class="token punctuation">;</span> <span class="token function">print_r</span> <span class="token punctuation">(</span> <span class="token variable">$ my_array</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span> <span class="token delimiter important">?></span>