flock

Nom:flock

Catégorie:Système de fichiers

Langage de programmation:php

Description en une ligne:Verrouiller ou libérer le fichier.

Exemple

 <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">// verrouillage exclusif</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">fichier $</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">fichier $</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"écrire quelque chose"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
  <span class="token comment">// Libérez le verrouillage</span>
  <span class="token function">Flock</span> <span class="token punctuation">(</span> <span class="token variable">fichier $</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">autre</span>
  <span class="token punctuation">{</span>
  <span class="token keyword">Echo</span> <span class="token string double-quoted-string">"Fichier de verrouillage d&#39;erreur!"</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">fichier $</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

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