feof

例

<span class="token php language-php"><span class="token delimiter important"><？php</span>
<span class="token variable">$ file</span> <span class="token operator">=</span> <span class="token function">fopen</span> <span class="token punctuation">（</span> <span class="token string double-quoted-string">"test.txt"</span> <span class="token punctuation">、</span> <span class="token string double-quoted-string">"r"</span> <span class="token punctuation">）</span> <span class="token punctuation">;</span>

<span class="token comment">//ファイルの最後までテキスト内のすべての行を出力します。</span>
<span class="token keyword">while</span> <span class="token punctuation">（</span> <span class="token operator">！</span> <span class="token function">feof</span> <span class="token punctuation">（</span> <span class="token variable">$ file</span> <span class="token punctuation">）</span> <span class="token punctuation">）</span>
  <span class="token punctuation">{</span>
  <span class="token keyword">echo</span> <span class="token function">fgets</span> <span class="token punctuation">（</span> <span class="token variable">$ file</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 punctuation">}</span>

<span class="token function">fclose</span> <span class="token punctuation">（</span> <span class="token variable">$ file</span> <span class="token punctuation">）</span> <span class="token punctuation">;</span>
<span class="token delimiter important">？></span></span>

出力：

こんにちは、これはテストファイルです。 
ここには3つの行があります。 
これが最後の行です。