sha1_file

Name:sha1_file

Kategorie:Saite

Programmiersprache:php

Kurzbeschreibung:Berechnen Sie den SHA-1-Hash der Datei.

Beispiel

Beispiel 1

Berechnen Sie den SHA-1-Hash der Textdatei "test.txt":

 <span class="token php language-php"><span class="token delimiter important"><? Php</span>
<span class="token variable">$ Dateiname</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"test.txt"</span> <span class="token punctuation">;</span>
<span class="token variable">$ SHA1FILE</span> <span class="token operator">=</span> <span class="token function">SHA1_FILE</span> <span class="token punctuation">(</span> <span class="token variable">$ Dateiname</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token keyword">echo</span> <span class="token variable">$ SHA1FILE</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

Ausgabe des obigen Codes:

 AAF4C61DDCC5E8A2DABEDE0F3B482CD9AEA9434D

Beispiel 2

Speichern des SHA-1-Hashs von "test.txt" in der Datei:

 <span class="token php language-php"><span class="token delimiter important"><? Php</span>
<span class="token variable">$ SHA1FILE</span> <span class="token operator">=</span> <span class="token function">SHA1_FILE</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"test.txt"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token function">Datei_put_Contents</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"sha1file.txt"</span> <span class="token punctuation">,</span> <span class="token variable">$ sHA1FILE</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

Testen Sie, ob "test.txt" geändert wurde (d. H. Ob SHA-1 geändert wurde):

 <span class="token php language-php"><span class="token delimiter important"><? Php</span>
<span class="token variable">$ SHA1FILE</span> <span class="token operator">=</span> <span class="token function">file_get_contents</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"sha1file.txt"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token keyword">if</span> <span class="token punctuation">(</span> <span class="token function">sha1_file</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"test.txt"</span> <span class="token punctuation">)</span> <span class="token operator">==</span> <span class="token variable">$ SHA1FILE</span> <span class="token punctuation">)</span>
  <span class="token punctuation">{</span>
  <span class="token keyword">Echo</span> <span class="token string double-quoted-string">"Die Datei ist in Ordnung."</span> <span class="token punctuation">;</span>
  <span class="token punctuation">}</span>
<span class="token keyword">anders</span>
  <span class="token punctuation">{</span>
  <span class="token keyword">Echo</span> <span class="token string double-quoted-string">"Die Datei wurde geändert."</span> <span class="token punctuation">;</span>
  <span class="token punctuation">}</span>
<span class="token delimiter important">?></span></span>

Ausgabe des obigen Codes: