is_scalar

Exemple

Vérifiez si la variable est un scalaire:

 <span class="token php language-php"><span class="token delimiter important"><? Php</span>  
<span class="token variable">$ a</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"bonjour"</span> <span class="token punctuation">;</span>  
<span class="token keyword">Echo</span> <span class="token string double-quoted-string">"a is"</span> <span class="token operator">.</span> <span class="token punctuation">(</span> <span class="token function">is_scalar</span> <span class="token punctuation">(</span> <span class="token variable">$ a</span> <span class="token punctuation">)</span> <span class="token operator">?</span> <span class="token string single-quoted-string">&#39;Scalar&#39;</span> <span class="token punctuation">:</span> <span class="token string single-quoted-string">&#39;pas scalar&#39;</span> <span class="token punctuation">)</span> <span class="token operator">.</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>  
  
<span class="token variable">$ b</span> <span class="token operator">=</span> <span class="token number">0</span> <span class="token punctuation">;</span>  
<span class="token keyword">Echo</span> <span class="token string double-quoted-string">"B est"</span> <span class="token operator">.</span> <span class="token punctuation">(</span> <span class="token function">is_scalar</span> <span class="token punctuation">(</span> <span class="token variable">$ b</span> <span class="token punctuation">)</span> <span class="token operator">?</span> <span class="token string single-quoted-string">&#39;Scalar&#39;</span> <span class="token punctuation">:</span> <span class="token string single-quoted-string">&#39;pas scalar&#39;</span> <span class="token punctuation">)</span> <span class="token operator">.</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>  
  
<span class="token variable">$ c</span> <span class="token operator">=</span> <span class="token number">32</span> <span class="token punctuation">;</span>  
<span class="token keyword">Echo</span> <span class="token string double-quoted-string">"C est"</span> <span class="token operator">.</span> <span class="token punctuation">(</span> <span class="token function">is_scalar</span> <span class="token punctuation">(</span> <span class="token variable">$ c</span> <span class="token punctuation">)</span> <span class="token operator">?</span> <span class="token string single-quoted-string">&#39;Scalar&#39;</span> <span class="token punctuation">:</span> <span class="token string single-quoted-string">&#39;pas scalar&#39;</span> <span class="token punctuation">)</span> <span class="token operator">.</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>  
  
<span class="token variable">$ d</span> <span class="token operator">=</span> <span class="token constant">null</span> <span class="token punctuation">;</span>  
<span class="token keyword">Echo</span> <span class="token string double-quoted-string">"d est"</span> <span class="token operator">.</span> <span class="token punctuation">(</span> <span class="token function">is_scalar</span> <span class="token punctuation">(</span> <span class="token variable">$ d</span> <span class="token punctuation">)</span> <span class="token operator">?</span> <span class="token string single-quoted-string">&#39;Scalar&#39;</span> <span class="token punctuation">:</span> <span class="token string single-quoted-string">&#39;pas scalar&#39;</span> <span class="token punctuation">)</span> <span class="token operator">.</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>  
  
<span class="token variable">$ e</span> <span class="token operator">=</span> <span class="token keyword">array</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"rouge"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"vert"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"bleu"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>  
<span class="token keyword">Echo</span> <span class="token string double-quoted-string">"e is"</span> <span class="token operator">.</span> <span class="token punctuation">(</span> <span class="token function">is_scalar</span> <span class="token punctuation">(</span> <span class="token variable">$ e</span> <span class="token punctuation">)</span> <span class="token operator">?</span> <span class="token string single-quoted-string">&#39;Scalar&#39;</span> <span class="token punctuation">:</span> <span class="token string single-quoted-string">&#39;pas scalar&#39;</span> <span class="token punctuation">)</span> <span class="token operator">.</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>  
<span class="token delimiter important">?></span></span>

Essayez-le vous-même