debug_zval_dump

实例

将内部 zend 值的字符串表示形式转储到输出：

<span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$a</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"Hello world!"</span><span class="token punctuation">;</span>
<span class="token keyword">echo</span> <span class="token function">debug_zval_dump</span><span class="token punctuation">(</span><span class="token variable">$a</span><span class="token punctuation">)</span> <span class="token operator">.</span> <span class="token string double-quoted-string">"<br>"</span><span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

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