number_format

例

例1

フォーマット番号：

 <span class="token php language-php"><span class="token delimiter important"><？php</span>
<span class="token keyword">echo</span> <span class="token function">number_format</span> <span class="token punctuation">（</span> <span class="token string double-quoted-string">"5000000"</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 keyword">echo</span> <span class="token function">number_format</span> <span class="token punctuation">（</span> <span class="token string double-quoted-string">"5000000"</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">"<br>"</span> <span class="token punctuation">;</span>
<span class="token keyword">echo</span> <span class="token function">number_format</span> <span class="token punctuation">（</span> <span class="token string double-quoted-string">"5000000"</span> <span class="token punctuation">、</span> <span class="token number">2</span> <span class="token punctuation">、</span> <span class="token string double-quoted-string">"、"</span> <span class="token punctuation">、</span> <span class="token string double-quoted-string">"。"</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2

価格を返したい：1つのパラメーターが数値（小数点なしでフォーマットされている）を丸め、2つのパラメーターが必要な結果を提供します。

 <span class="token php language-php"><span class="token delimiter important"><？php</span>
<span class="token variable">$ num</span> <span class="token operator">=</span> <span class="token number">4999.9</span> <span class="token punctuation">;</span>
<span class="token variable">$ formattednum</span> <span class="token operator">=</span> <span class="token function">number_format</span> <span class="token punctuation">（</span> <span class="token variable">$ num</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 keyword">echo</span> <span class="token variable">$ formattednum</span> <span class="token punctuation">;</span>
<span class="token variable">$ formattednum</span> <span class="token operator">=</span> <span class="token function">number_format</span> <span class="token punctuation">（</span> <span class="token variable">$ num</span> <span class="token punctuation">、</span> <span class="token number">2</span> <span class="token punctuation">）</span> <span class="token punctuation">;</span>
<span class="token keyword">echo</span> <span class="token variable">$ formattednum</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