chr

名前:chr

カテゴリ:弦

対応言語:php

一言説明:指定されたASCII値から文字を返します。

例

例1

異なるASCII値から文字を返す：

 <span class="token php language-php"><span class="token delimiter important"><？php</span>
<span class="token keyword">エコー</span><span class="token function">CHR</span> <span class="token punctuation">（</span> <span class="token number">61</span> <span class="token punctuation">）</span> <span class="token operator">。</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span> <span class="token comment">// Decimal</span>
<span class="token keyword">エコー</span><span class="token function">CHR</span> <span class="token punctuation">（</span> <span class="token number">061</span> <span class="token punctuation">）</span> <span class="token operator">。</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span> <span class="token comment">// octal値</span>
<span class="token keyword">エコー</span><span class="token function">CHR</span> <span class="token punctuation">（</span> <span class="token number">0x61</span> <span class="token punctuation">）</span> <span class="token operator">。</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span> <span class="token comment">// 16進数</span>
<span class="token delimiter important">？></span></span>

自分で試してみてください

例2

Octal値046を使用して、ASCII文字：＆。

 <span class="token php language-php"><span class="token delimiter important"><？php</span>
<span class="token variable">$ str</span> <span class="token operator">=</span> <span class="token function">chr</span> <span class="token punctuation">（</span> <span class="token number">046</span> <span class="token punctuation">）</span> <span class="token punctuation">;</span>
<span class="token keyword">echo</span> <span class="token punctuation">（</span> <span class="token string double-quoted-string">"you <span class="token interpolation"><span class="token variable">$ str</span></span> me forever！"</span> <span class="token punctuation">）</span> <span class="token punctuation">;</span>
<span class="token delimiter important">？></span></span>

自分で試してみてください

例3

小数値43および61を使用して、ASCII文字を追加します： + and =。

 <span class="token php language-php"><span class="token delimiter important"><？php</span>
<span class="token variable">$ str</span> <span class="token operator">=</span> <span class="token function">chr</span> <span class="token punctuation">（</span> <span class="token number">43</span> <span class="token punctuation">）</span> <span class="token punctuation">;</span>
<span class="token variable">$ str2</span> <span class="token operator">=</span> <span class="token function">chr</span> <span class="token punctuation">（</span> <span class="token number">61</span> <span class="token punctuation">）</span> <span class="token punctuation">;</span>
<span class="token keyword">echo</span> <span class="token punctuation">（</span> <span class="token string double-quoted-string">"2 <span class="token interpolation"><span class="token variable">$ str</span></span> 2 <span class="token interpolation"><span class="token variable">$ str2</span></span> 4"</span> <span class="token punctuation">）</span> <span class="token punctuation">;</span>
<span class="token delimiter important">？></span></span>

自分で試してみてください