html_entity_decode

名前:html_entity_decode

カテゴリ:弦

対応言語:php

一言説明:HTMLエンティティを文字に変換します。

例

例1

HTMLエンティティを文字に変換します。

 <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>

上記のコードのHTML出力は次のとおりです（ソースコードを参照）：

 <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"><html></span></span><span class="token punctuation"></span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation"><body></span></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>

上記のコードのブラウザ出力：

 <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2

HTMLエンティティを文字に変換します。

 <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">//二重引用符のみを変換します</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">//ダブルと単一の引用を変換します</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">//見積マークは変換されません</span>
<span class="token delimiter important">？></span></span>

上記のコードのHTML出力（ソースコードを参照）：

 <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"><html></span><span class="token operator"></span>
<span class="token operator"><body></span><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>
ビル<span class="token operator">＆</span> <span class="token string single-quoted-string">「スティーブ</span><span class="token operator">」</span> <span class="token operator"><br></span>
ビル<span class="token operator">＆＆</span> <span class="token operator">「</span><span class="token comment">スティーブ」</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>

上記のコードのブラウザ出力：

ビル＆「スティーブ」
ビル＆「スティーブ」
ビル＆「スティーブ」

例3

西ヨーロッパの文字セットを使用して、HTMLエンティティを文字に変換します。

 <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">"私の名前は？yvind？saneです。私はノルウェー人です。」</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>

上記のコードのHTML出力（ソースコードを参照）：

 <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"><html></span><span class="token operator"></span>
<span class="token operator"><body></span><span class="token operator"></span>
私の名前は<span class="token operator">？</span>イヴィンド<span class="token operator">？</span>正気<span class="token operator">。</span><span class="token constant">私</span>はノルウェー語です<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>

上記のコードのブラウザ出力：

私の名前は？yvind？saneです。私はノルウェー人です。

例

例1

例2

例3

html_entity_decodeを使用してフォーム送信でHTMLエンティティを復元する方法

html_entity_decodeとmb_convert_encodingマルチバイト文字を一緒にハンドルします

html_entity_decodeの使用における一般的なエラー：エンコードパラメーターは無視されます

HTMLENTITIESとHTML_ENTITY_DECODEを組み合わせて、双方向のエンティティ変換を実装します

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