array_pad

名前:array_pad

カテゴリ:配列

対応言語:php

一言説明:指定された長さの値で配列を入力します。

例

例1

5つの要素を返し、「青」値を配列の新しい要素に挿入します。

 <span class="token php language-php"><span class="token delimiter important"><？php</span>
<span class="token variable">$ a</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 punctuation">;</span>
<span class="token function">print_r</span> <span class="token punctuation">（</span><span class="token function"></span></span><mark> <span class="token function">array_pad</span> <span class="token punctuation">（</span> <span class="token variable">$ a</span> <span class="token punctuation">、</span> <span class="token number">5</span> <span class="token punctuation">、</span> <span class="token string double-quoted-string">"blue"</span> <span class="token punctuation">）</span></mark><span class="token punctuation"></span> <span class="token punctuation">）</span> <span class="token punctuation">;</span>
<span class="token delimiter important">？></span>

自分で試してみてください

例2

負のサイズのパラメーターを使用します：

 <span class="token php language-php"><span class="token delimiter important"><？php</span>
<span class="token variable">$ a</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 punctuation">;</span>
<span class="token function">print_r</span> <span class="token punctuation">（</span><span class="token function"></span></span><mark> <span class="token function">array_pad</span> <span class="token punctuation">（</span> <span class="token variable">$ a</span> <span class="token punctuation">、</span> <span class="token operator">-5</span> <span class="token punctuation">、</span> <span class="token number">"</span> <span class="token string double-quoted-string">blue"</span> <span class="token punctuation">）</span></mark><span class="token punctuation"></span> <span class="token punctuation">）</span> <span class="token punctuation">;</span>
<span class="token delimiter important">？></span>

自分で試してみてください