html_entity_decode

實例

例子1

把HTML 實體轉換為字符：

 <span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$str</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"<? W3S?h°°|§>"</span> <span class="token punctuation">;</span>
<span class="token keyword">echo</span> <span class="token function">html_entity_decode</span> <span class="token punctuation">(</span> <span class="token variable">$str</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

以上代碼的HTML 輸出如下（查看源代碼）：

 <span class="token doctype"><span class="token punctuation"><!</span> <span class="token doctype-tag">DOCTYPE</span> <span class="token name">html</span> <span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span> html</span> <span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><</span> body</span> <span class="token punctuation">></span></span>
<span class="token php language-php"><span class="token delimiter important"><?</span> <span class="token constant">W3S</span> <span class="token operator">?</span> h <span class="token operator">??</span> <span class="token operator">?</span> <span class="token delimiter important">?></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span> body</span> <span class="token punctuation">></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"></</span> html</span> <span class="token punctuation">></span></span>

以上代碼的瀏覽器輸出：

 <span class="token php language-php"><span class="token delimiter important"><?</span> <span class="token constant">W3S</span> <span class="token operator">?</span> h <span class="token operator">??</span> <span class="token operator">?</span> <span class="token delimiter important">?></span></span>

例子2

把HTML 實體轉換為字符：

 <span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$str</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"Bill &amp; &#039;Steve&#039;"</span> <span class="token punctuation">;</span>
<span class="token keyword">echo</span> <span class="token function">html_entity_decode</span> <span class="token punctuation">(</span> <span class="token variable">$str</span> <span class="token punctuation">,</span> <span class="token constant">ENT_COMPAT</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span> <span class="token comment">// 只轉換雙引號</span>
<span class="token keyword">echo</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>
<span class="token keyword">echo</span> <span class="token function">html_entity_decode</span> <span class="token punctuation">(</span> <span class="token variable">$str</span> <span class="token punctuation">,</span> <span class="token constant">ENT_QUOTES</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span> <span class="token comment">// 轉換雙引號和單引號</span>
<span class="token keyword">echo</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>
<span class="token keyword">echo</span> <span class="token function">html_entity_decode</span> <span class="token punctuation">(</span> <span class="token variable">$str</span> <span class="token punctuation">,</span> <span class="token constant">ENT_NOQUOTES</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span> <span class="token comment">// 不轉換任何引號</span>
<span class="token delimiter important">?></span></span>

以上代碼的HTML 輸出（查看源代碼）：

 <span class="token operator"><</span> <span class="token operator">!</span> <span class="token constant">DOCTYPE</span> html <span class="token operator">></span>
<span class="token operator"><</span> html <span class="token operator">></span>
<span class="token operator"><</span> body <span class="token operator">></span>
Bill <span class="token operator">&</span> <span class="token operator">&</span> <span class="token comment">#039;Steve&#039;<br></span>
Bill <span class="token operator">&</span> <span class="token string single-quoted-string">&#39;Steve&#39;</span> <span class="token operator"><</span> br <span class="token operator">></span>
Bill <span class="token operator">&</span> <span class="token operator">&</span> <span class="token comment">#039;Steve&#039;</span>
<span class="token operator"><</span> <span class="token operator">/</span> body <span class="token operator">></span>
<span class="token operator"><</span> <span class="token operator">/</span> html <span class="token operator">></span>

以上代碼的瀏覽器輸出：

 Bill & 'Steve'
Bill & 'Steve'
Bill & 'Steve'

例子3

通過使用西歐字符集，把HTML 實體轉換為字符：

 <span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token variable">$str</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"My name is ?yvind ?sane. I&#39;m Norwegian."</span> <span class="token punctuation">;</span>
<span class="token keyword">echo</span> <span class="token function">html_entity_decode</span> <span class="token punctuation">(</span> <span class="token variable">$str</span> <span class="token punctuation">,</span> <span class="token constant">ENT_QUOTES</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"ISO-8859-1"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

以上代碼的HTML 輸出（查看源代碼）：

 <span class="token operator"><</span> <span class="token operator">!</span> <span class="token constant">DOCTYPE</span> html <span class="token operator">></span>
<span class="token operator"><</span> html <span class="token operator">></span>
<span class="token operator"><</span> body <span class="token operator">></span>
My name is <span class="token operator">?</span> yvind <span class="token operator">?</span> sane <span class="token operator">.</span> <span class="token constant">I</span> &#39;m Norwegian <span class="token operator">.</span>
<span class="token operator"><</span> <span class="token operator">/</span> body <span class="token operator">></span>
<span class="token operator"><</span> <span class="token operator">/</span> html <span class="token operator">></span>

以上代碼的瀏覽器輸出：

 My name is ?yvind ?sane. I'm Norwegian.