htmlentities
將所有適用的字符轉換為HTML實體-將字符轉換為HTML 轉義字符
把字符轉換為HTML 實體:
<span class="token php language-php"><span class="token delimiter important"><?php</span> <span class="token variable">$str</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"<? W3S?h????>"</span> <span class="token punctuation">;</span> <span class="token keyword">echo</span> <span class="token function">htmlentities</span> <span class="token punctuation">(</span> <span class="token variable">$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 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> <span class="token operator"><</span> ? <span class="token constant">W3S</span> ?h°°|§ <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:
<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>
把字符轉換為HTML 實體:
<span class="token php language-php"><span class="token delimiter important"><?php</span> <span class="token variable">$str</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"Bill & 'Steve'"</span> <span class="token punctuation">;</span> <span class="token keyword">echo</span> <span class="token function">htmlentities</span> <span class="token punctuation">(</span> <span class="token variable">$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">htmlentities</span> <span class="token punctuation">(</span> <span class="token variable">$str</span> <span class="token punctuation">,</span> <span class="token constant">ENT_QUOTES</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span> <span class="token comment">// 轉換雙引號和單引號</span> <span class="token keyword">echo</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span> <span class="token keyword">echo</span> <span class="token function">htmlentities</span> <span class="token punctuation">(</span> <span class="token variable">$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 輸出如下(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 string single-quoted-string">'Steve'</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;Tarzan'<br></span> Bill <span class="token operator">&</span> <span class="token string single-quoted-string">'Steve'</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'
通過使用西歐字符集,把一些字符轉換為HTML 實體:
<span class="token php language-php"><span class="token delimiter important"><?php</span> <span class="token variable">$str</span> <span class="token operator">=</span> <span class="token string double-quoted-string">"My name is ?yvind ?sane. I'm Norwegian."</span> <span class="token punctuation">;</span> <span class="token keyword">echo</span> <span class="token function">htmlentities</span> <span class="token punctuation">(</span> <span class="token variable">$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 comment">// Will only convert double quotes (not single quotes), and uses the character-set Western European</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 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 ?yvind ?sane <span class="token operator">.</span> <span class="token constant">I</span> '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.