fgets

實例

例子1

 <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 keyword">迴聲</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 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>

輸出類似：

您好，這是一個測試文件。

例子2

 <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 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">迴聲</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>

輸出類似：

您好，這是一個測試文件。 
這裡有三行。 
這是最後一行。