strval

例

異なる変数の文字列値を返します：

 <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 string double-quoted-string">"hello"</span> <span class="token punctuation">;</span>
<span class="token keyword">エコー</span><span class="token function">strval</span> <span class="token punctuation">（</span> <span class="token variable">$ a</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 variable">$ b</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"1234.56789"</span> <span class="token punctuation">;</span>
<span class="token keyword">エコー</span><span class="token function">strval</span> <span class="token punctuation">（</span> <span class="token variable">$ b</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 variable">$ c</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"1234.56789hello"</span> <span class="token punctuation">;</span>
<span class="token keyword">エコー</span><span class="token function">strval</span> <span class="token punctuation">（</span> <span class="token variable">$ c</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 variable">$ d</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"hello1234.56789"</span> <span class="token punctuation">;</span>
<span class="token keyword">エコー</span><span class="token function">strval</span> <span class="token punctuation">（</span> <span class="token variable">$ d</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 variable">$ e</span> <span class="token operator">=</span> <span class="token number">1234</span> <span class="token punctuation">;</span>
<span class="token keyword">エコー</span><span class="token function">strval</span> <span class="token punctuation">（</span> <span class="token variable">$ e</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 delimiter important">？></span></span>

自分で試してみてください