is_object

Beispiel

Überprüfen Sie, ob die Variable ein Objekt ist:

 <span class="token php language-php"><span class="token delimiter important"><? Php</span>
<span class="token keyword">Funktion</span> <span class="token function-definition function">get_cars</span> <span class="token punctuation">(</span> <span class="token variable">$ obj</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 operator">!</span> <span class="token function">is_object</span> <span class="token punctuation">(</span> <span class="token variable">$ obj</span> <span class="token punctuation">)</span> <span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token constant boolean">false</span> <span class="token keyword">zurückgeben</span> <span class="token punctuation">;</span>
  <span class="token punctuation">}</span>
<span class="token keyword">Return</span> <span class="token variable">$ obj</span> <span class="token operator">-></span> <span class="token property">Autos</span> <span class="token punctuation">;</span>
<span class="token punctuation">}</span>

<span class="token variable">$ obj</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">STDClass</span> <span class="token punctuation">(</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token variable">$ obj</span> <span class="token operator">-></span> <span class="token property">cars</span> <span class="token operator">=</span> <span class="token keyword">array</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"volvo"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"bmw"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"audi"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>

<span class="token function">var_dump</span> <span class="token punctuation">(</span> <span class="token function">get_cars</span> <span class="token punctuation">(</span> <span class="token constant">null</span> <span class="token punctuation">)</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token keyword">echo</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>
<span class="token function">var_dump</span> <span class="token punctuation">(</span> <span class="token function">get_cars</span> <span class="token punctuation">(</span> <span class="token variable">$ obj</span> <span class="token punctuation">)</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

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