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?&gt;
&lt;div id="ds-map.diff" class="refentry"&gt;
 &lt;div class="refnamediv"&gt;
  &lt;h1 class="refname"&gt;Ds\Map::diff&lt;/h1&gt;
  &lt;p class="verinfo"&gt;(PECL ds &amp;gt;= 1.0.0)&lt;/p&gt;&lt;p class="refpurpose"&gt;&lt;span class="refname"&gt;Ds\Map::diff&lt;/span&gt; &amp;mdash; &lt;span class="dc-title"&gt;Creates a new map using keys that aren&amp;#039;t in another map&lt;/span&gt;&lt;/p&gt;

 &lt;/div&gt;

 &lt;div class="refsect1 description" id="refsect1-ds-map.diff-description"&gt;
  &lt;h3 class="title"&gt;Descrizione&lt;/h3&gt;
  &lt;div class="methodsynopsis dc-description"&gt;
   &lt;span class="modifier"&gt;public&lt;/span&gt; &lt;span class="methodname"&gt;&lt;strong&gt;Ds\Map::diff&lt;/strong&gt;&lt;/span&gt;(&lt;span class="methodparam"&gt;&lt;span class="type"&gt;&lt;a href="class.ds-map.php" class="type Ds\Map"&gt;Ds\Map&lt;/a&gt;&lt;/span&gt; &lt;code class="parameter"&gt;$map&lt;/code&gt;&lt;/span&gt;): &lt;span class="type"&gt;&lt;a href="class.ds-map.php" class="type Ds\Map"&gt;Ds\Map&lt;/a&gt;&lt;/span&gt;&lt;/div&gt;

  &lt;p class="para rdfs-comment"&gt;
    Returns the result of removing all keys from the current instance that are
    present in a given &lt;code class="parameter"&gt;map&lt;/code&gt;.
  &lt;/p&gt;
  &lt;p class="para"&gt;
    &lt;code class="code"&gt;A \ B = {x âˆˆ A | x âˆ‰ B}&lt;/code&gt;
  &lt;/p&gt;
 &lt;/div&gt;


 &lt;div class="refsect1 parameters" id="refsect1-ds-map.diff-parameters"&gt;
  &lt;h3 class="title"&gt;Elenco dei parametri&lt;/h3&gt;
  &lt;dl&gt;
   
    &lt;dt&gt;&lt;code class="parameter"&gt;map&lt;/code&gt;&lt;/dt&gt;
    &lt;dd&gt;
     &lt;p class="para"&gt;
        The map containing the keys to exclude in the resulting map.
     &lt;/p&gt;
    &lt;/dd&gt;
   
  &lt;/dl&gt;
 &lt;/div&gt;


 &lt;div class="refsect1 returnvalues" id="refsect1-ds-map.diff-returnvalues"&gt;
  &lt;h3 class="title"&gt;Valori restituiti&lt;/h3&gt;
  &lt;p class="para"&gt;
    The result of removing all keys from the current instance that are
    present in a given &lt;code class="parameter"&gt;map&lt;/code&gt;.
  &lt;/p&gt;
 &lt;/div&gt;


 &lt;div class="refsect1 seealso" id="refsect1-ds-map.diff-seealso"&gt;
  &lt;h3 class="title"&gt;Vedere anche:&lt;/h3&gt;
  &lt;p class="para"&gt;
   &lt;ul class="simplelist"&gt;
    &lt;li&gt;&lt;a href="https://en.wikipedia.org/wiki/Complement_(set_theory)" class="link external"&gt;&amp;raquo;&amp;nbsp;Complement&lt;/a&gt; on Wikipedia&lt;/li&gt;
   &lt;/ul&gt;
  &lt;/p&gt;
 &lt;/div&gt;


 &lt;div class="refsect1 examples" id="refsect1-ds-map.diff-examples"&gt;
  &lt;h3 class="title"&gt;Esempi&lt;/h3&gt;
  &lt;div class="example" id="example-4107"&gt;
   &lt;p&gt;&lt;strong&gt;Example #1 &lt;span class="function"&gt;&lt;strong&gt;Ds\Map::diff()&lt;/strong&gt;&lt;/span&gt; example&lt;/strong&gt;&lt;/p&gt;
   &lt;div class="example-contents"&gt;
&lt;div class="phpcode"&gt;&lt;code&gt;&lt;span style="color: #000000"&gt;&lt;span style="color: #0000BB"&gt;&amp;lt;?php&lt;br /&gt;$a &lt;/span&gt;&lt;span style="color: #007700"&gt;= new &lt;/span&gt;&lt;span style="color: #0000BB"&gt;\Ds\Map&lt;/span&gt;&lt;span style="color: #007700"&gt;([&lt;/span&gt;&lt;span style="color: #DD0000"&gt;"a" &lt;/span&gt;&lt;span style="color: #007700"&gt;=&amp;gt; &lt;/span&gt;&lt;span style="color: #0000BB"&gt;1&lt;/span&gt;&lt;span style="color: #007700"&gt;, &lt;/span&gt;&lt;span style="color: #DD0000"&gt;"b" &lt;/span&gt;&lt;span style="color: #007700"&gt;=&amp;gt; &lt;/span&gt;&lt;span style="color: #0000BB"&gt;2&lt;/span&gt;&lt;span style="color: #007700"&gt;, &lt;/span&gt;&lt;span style="color: #DD0000"&gt;"c" &lt;/span&gt;&lt;span style="color: #007700"&gt;=&amp;gt; &lt;/span&gt;&lt;span style="color: #0000BB"&gt;3&lt;/span&gt;&lt;span style="color: #007700"&gt;]);&lt;br /&gt;&lt;/span&gt;&lt;span style="color: #0000BB"&gt;$b &lt;/span&gt;&lt;span style="color: #007700"&gt;= new &lt;/span&gt;&lt;span style="color: #0000BB"&gt;\Ds\Map&lt;/span&gt;&lt;span style="color: #007700"&gt;([&lt;/span&gt;&lt;span style="color: #DD0000"&gt;"b" &lt;/span&gt;&lt;span style="color: #007700"&gt;=&amp;gt; &lt;/span&gt;&lt;span style="color: #0000BB"&gt;4&lt;/span&gt;&lt;span style="color: #007700"&gt;, &lt;/span&gt;&lt;span style="color: #DD0000"&gt;"c" &lt;/span&gt;&lt;span style="color: #007700"&gt;=&amp;gt; &lt;/span&gt;&lt;span style="color: #0000BB"&gt;5&lt;/span&gt;&lt;span style="color: #007700"&gt;, &lt;/span&gt;&lt;span style="color: #DD0000"&gt;"d" &lt;/span&gt;&lt;span style="color: #007700"&gt;=&amp;gt; &lt;/span&gt;&lt;span style="color: #0000BB"&gt;6&lt;/span&gt;&lt;span style="color: #007700"&gt;]);&lt;br /&gt;&lt;br /&gt;&lt;/span&gt;&lt;span style="color: #0000BB"&gt;var_dump&lt;/span&gt;&lt;span style="color: #007700"&gt;(&lt;/span&gt;&lt;span style="color: #0000BB"&gt;$a&lt;/span&gt;&lt;span style="color: #007700"&gt;-&amp;gt;&lt;/span&gt;&lt;span style="color: #0000BB"&gt;diff&lt;/span&gt;&lt;span style="color: #007700"&gt;(&lt;/span&gt;&lt;span style="color: #0000BB"&gt;$b&lt;/span&gt;&lt;span style="color: #007700"&gt;));&lt;br /&gt;&lt;/span&gt;&lt;span style="color: #0000BB"&gt;?&amp;gt;&lt;/span&gt;&lt;/span&gt;&lt;/code&gt;&lt;/div&gt;
   &lt;/div&gt;

   &lt;div class="example-contents"&gt;&lt;p&gt;Il precedente esempio visualizzerÃ&nbsp;
qualcosa simile a:&lt;/p&gt;&lt;/div&gt;
   &lt;div class="example-contents screen"&gt;
&lt;div class="examplescode"&gt;&lt;pre class="examplescode"&gt;object(Ds\Map)#3 (1) {
  [0]=&amp;gt;
  object(Ds\Pair)#4 (2) {
    [&amp;quot;key&amp;quot;]=&amp;gt;
    string(1) &amp;quot;a&amp;quot;
    [&amp;quot;value&amp;quot;]=&amp;gt;
    int(1)
  }
}&lt;/pre&gt;
&lt;/div&gt;
   &lt;/div&gt;
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 &lt;/div&gt;



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