fflush

例

<span class="token php language-php"><span class="token delimiter important"><？php</span>
file <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">//いくつかのコード</span>

<span class="token function">ffflush</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>