count
Calculez le nombre d'unités dans un tableau ou le nombre d'attributs dans un objet
Calculez le nombre de nœuds enfants de l'élément <CAR>:
<span class="token php language-php"><span class="token delimiter important"><? Php</span> <span class="token variable">$ xml</span> <span class="token operator">=</span> <span class="token string heredoc-string"><span class="token delimiter symbol"><span class="token punctuation"><<<</span> xml</span> <Cars> <car name = "Volvo"> <enfant /> <enfant /> <enfant /> <enfant /> </car> <car name = "bmw"> <enfant /> <enfant /> </car> </cars> <span class="token delimiter symbol">Xml <span class="token punctuation">;</span></span></span> <span class="token variable">$ elem</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">SimplexMlelement</span> <span class="token punctuation">(</span> <span class="token variable">$ xml</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span> <span class="token keyword">foreach</span> <span class="token punctuation">(</span> <span class="token variable">$ elem</span> <span class="token keyword">as</span> <span class="token variable">$ car</span> <span class="token punctuation">)</span> <span class="token punctuation">{</span> <span class="token function">printf</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"% s a% d enfants. <br>"</span> <span class="token punctuation">,</span> <span class="token variable">$ car</span> <span class="token punctuation">[</span> <span class="token string single-quoted-string">'name'</span> <span class="token punctuation">]</span> <span class="token punctuation">,</span> <span class="token variable">$ car</span> <span class="token operator">-></span> <span class="token function">count</span> <span class="token punctuation">(</span> <span class="token punctuation">)</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span> <span class="token punctuation">}</span> <span class="token delimiter important">?></span></span>