flock

이름:flock

분류:파일 시스템

사용 언어:php

한 줄 설명:파일을 잠그거나 해제합니다.

예

 <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">"w+"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>

<span class="token comment">// 독점 잠금</span>
<span class="token keyword">if</span> <span class="token punctuation">(</span> <span class="token function">flock</span> <span class="token punctuation">(</span> <span class="token variable">$ file</span> <span class="token punctuation">,</span> <span class="token constant">lock_ex</span> <span class="token punctuation">)</span> <span class="token punctuation">)</span>
  <span class="token punctuation">{</span>
  <span class="token function">fwrite</span> <span class="token punctuation">(</span> <span class="token variable">$ 파일</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"글을 쓰십시오"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
  <span class="token comment">// 릴리스 잠금</span>
  <span class="token function">플록</span> <span class="token punctuation">(</span> <span class="token variable">$ file</span> <span class="token punctuation">,</span> <span class="token constant">lock_un</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
  <span class="token punctuation">}</span>
<span class="token keyword">또 다른</span>
  <span class="token punctuation">{</span>
  <span class="token keyword">Echo</span> <span class="token string double-quoted-string">"오류 잠금 파일!"</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">$ 파일</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>