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array

新しい配列を作成します
名前:array
カテゴリ:配列
対応言語:php
一言説明:配列を作成します。

例1

$ carsという名前のインデックス配列を作成し、3つの要素を割り当て、配列値を含むテキストを印刷します。

 <span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$ cars</span> <span class="token operator">=</span><span class="token keyword"></span></span><mark><span class="token keyword">配列</span><span class="token punctuation">(</span> <span class="token string double-quoted-string">"Volvo"</span> <span class="token punctuation">、</span> <span class="token string double-quoted-string">"BMW"</span> <span class="token punctuation">、</span> <span class="token string double-quoted-string">"Toyota"</span> <span class="token punctuation">)</span></mark><span class="token punctuation"></span> <span class="token punctuation">;</span>
<span class="token keyword">エコー</span><span class="token string double-quoted-string">「私は好き」</span> <span class="token operator">。</span> <span class="token variable">$ cars</span> <span class="token punctuation">[</span> <span class="token number">0</span> <span class="token punctuation">]</span> <span class="token operator">。</span> <span class="token string double-quoted-string">"、"</span> <span class="token operator">。</span> <span class="token variable">$ cars</span> <span class="token punctuation">[</span> <span class="token number">1</span> <span class="token punctuation">]</span> <span class="token operator">。</span> <span class="token string double-quoted-string">" そして "</span> <span class="token operator">。</span> <span class="token variable">$ cars</span> <span class="token punctuation">[</span> <span class="token number">2</span> <span class="token punctuation">]</span> <span class="token operator">。</span> <span class="token string double-quoted-string">「。」</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

$ ageという名前の連想配列を作成します:

 <span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$ age</span> <span class="token operator">=</span><span class="token keyword"></span></span><mark> <span class="token keyword">array</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"bill"</span> <span class="token operator">=></span> <span class="token string double-quoted-string">"60"</span> <span class="token punctuation">、</span> <span class="token string double-quoted-string">"Steve"</span> <span class="token operator">=></span> <span class="token string double-quoted-string">"56"</span> <span class="token punctuation">、</span> <span class="token string double-quoted-string">"mark"</span> <span class="token operator">=></span> <span class="token string double-quoted-string">"31"</span> <span class="token punctuation">)</span></mark><span class="token punctuation"></span> <span class="token punctuation">;</span>
<span class="token keyword">エコー</span><span class="token string double-quoted-string">「法案は」</span> <span class="token operator">。</span> <span class="token variable">$ age</span> <span class="token punctuation">[</span> <span class="token string single-quoted-string">&#39;bill&#39;</span> <span class="token punctuation">]</span> <span class="token operator">。</span> <span class="token string double-quoted-string">「年齢。」</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3

インデックスアレイの値を反復して印刷します。

 <span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$ cars</span> <span class="token operator">=</span><span class="token keyword"></span></span><mark><span class="token keyword">配列</span><span class="token punctuation">(</span> <span class="token string double-quoted-string">"Volvo"</span> <span class="token punctuation">、</span> <span class="token string double-quoted-string">"BMW"</span> <span class="token punctuation">、</span> <span class="token string double-quoted-string">"Toyota"</span> <span class="token punctuation">)</span></mark><span class="token punctuation"></span> <span class="token punctuation">;</span>
<span class="token variable">$ arrlength</span> <span class="token operator">=</span> <span class="token function">count</span> <span class="token punctuation">(</span> <span class="token variable">$ cars</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>

<span class="token keyword">for</span> <span class="token punctuation">(</span> <span class="token variable">$ x</span> <span class="token operator">=</span> <span class="token number">0</span> <span class="token punctuation">;</span> <span class="token variable">$ x</span> <span class="token operator"><</span> <span class="token variable">$ arrlength</span> <span class="token punctuation">;</span> <span class="token variable">$ x</span> <span class="token operator">++</span> <span class="token punctuation">)</span>
  <span class="token punctuation">{</span>
  <span class="token keyword">echo</span> <span class="token variable">$ cars</span> <span class="token punctuation">[</span> <span class="token variable">$ x</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 punctuation">}</span>
<span class="token delimiter important">?></span>

自分で試してみてください

例4

繰り返して、連想配列のすべての値を印刷します。

 <span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$ age</span> <span class="token operator">=</span><span class="token keyword"></span></span><mark> <span class="token keyword">array</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"bill"</span> <span class="token operator">=></span> <span class="token string double-quoted-string">"60"</span> <span class="token punctuation">、</span> <span class="token string double-quoted-string">"Steve"</span> <span class="token operator">=></span> <span class="token string double-quoted-string">"56"</span> <span class="token punctuation">、</span> <span class="token string double-quoted-string">"mark"</span> <span class="token operator">=></span> <span class="token string double-quoted-string">"31"</span> <span class="token punctuation">)</span></mark><span class="token punctuation"></span> <span class="token punctuation">;</span>

<span class="token keyword">foreach</span> <span class="token punctuation">(</span> <span class="token variable">$</span> <span class="token keyword">as</span> <span class="token variable">$ x</span> <span class="token operator">=></span> <span class="token variable">$ x_value</span> <span class="token punctuation">)</span>
  <span class="token punctuation">{</span>
  <span class="token keyword">echo</span> <span class="token string double-quoted-string">"key ="</span> <span class="token operator">。</span> <span class="token variable">$ x</span> <span class="token operator">。</span> <span class="token string double-quoted-string">"、value ="</span> <span class="token operator">。</span> <span class="token variable">$ x_value</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 punctuation">}</span>
<span class="token delimiter important">?></span>

自分で試してみてください

例5

多次元配列を作成します。

 <span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token comment">// 2次元配列:</span>
<span class="token variable">$ cars</span> <span class="token operator">=</span><span class="token keyword"></span></span><mark><span class="token keyword">配列</span>
  <span class="token punctuation">(</span>
  <span class="token keyword">配列</span><span class="token punctuation">(</span> <span class="token punctuation">"</span> <span class="token punctuation">Volvo</span> <span class="token string double-quoted-string">"</span> <span class="token punctuation">、</span> <span class="token number">100、96</span> <span class="token number">)</span> <span class="token punctuation">、</span>
  <span class="token keyword">配列</span><span class="token punctuation">(</span> <span class="token punctuation">"</span> <span class="token punctuation">BMW</span> <span class="token string double-quoted-string">"</span> <span class="token punctuation">、</span> <span class="token number">60、59</span> <span class="token number">)</span> <span class="token punctuation">、</span>
  <span class="token keyword">array</span> <span class="token punctuation">(</span> <span class="token punctuation">"</span> <span class="token punctuation">Toyota</span> <span class="token string double-quoted-string">"</span> <span class="token punctuation">、</span> <span class="token number">110、100</span> <span class="token number">)</span>
  <span class="token punctuation">))</span></mark><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

類似の関数
  • 配列内の現在の要素を返します current

    current

    配列内の現在の要素を返します
  • 連想配列からキー名を取得します key

    key

    連想配列からキー名を取得します
  • 配列から重複した値を削除します array_unique

    array_unique

    配列から重複した値を削除します
  • インデックスチェックを使用して配列の差を計算し、コールバック関数を使用してデータを比較します array_udiff_assoc

    array_udiff_assoc

    インデックスチェックを使用して配列の差を
  • コールバック関数を使用して、アレイのユニットをフィルタリングします array_filter

    array_filter

    コールバック関数を使用して、アレイのユニ
  • 「Natural Sort」アルゴリズムを使用して配列をソートします natsort

    natsort

    「NaturalSort」アルゴリズムを
  • 配列内のすべての値を要約します array_sum

    array_sum

    配列内のすべての値を要約します
  • キーとして1つの配列を使用して、その値として別の配列を使用して配列を作成します array_combine

    array_combine

    キーとして1つの配列を使用して、その値と