php - テキストのインデントをユーザーが書いたものと同じに保つ方法</h1> <div id="body"><p>i am using php.my project is to build a forum...everything is fine and ok except onething...there is a <code><textarea></code> on top of my site,through whi</a></h1> </div> <div class="d-flex fw-wrap pb8 mb16 bb bc-black-075" style="font-size:14px;margin-top:10px;"> <div class="flex--item ws-nowrap mr16 mb8" title="2022-04-17 15:46:40Z" > <span class="fc-light mr2">翻译自：<a href="https://stackoverflow.com/questions/15770730" style="margin-right:20px;text-decoration:underline;" rel="nofollow">https://stackoverflow.com/questions/15770730</a></span> <time itemprop="dateCreated" datetime="2013-04-02T17:45:43.393">2013-04-02T17:45:43.393</time> </div> <div class="flex--item ws-nowrap mb8" title="Viewed 6 times"> <span class="fc-light mr2"></span> 2283 次 </div> </div> <div id="mainbar" role="main" aria-label="question and answers"> <div class="question" data-questionid="4" data-position-on-page="0" data-score="763" id="question"> <div 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class="post-tag js-gps-track" title="show questions tagged 'mysql'" rel="tag">mysql</a><a href="/tags/forum" class="post-tag js-gps-track" title="show questions tagged 'forum'" rel="tag">forum</a> </div> </div> </div> </div> <span class="d-none" itemprop="commentCount">4</span> </div> </div> <div class="js-zone-container zone-container-responsive"> <div id="dfp-isb" class="everyonelovesstackoverflow everyonelovesinline-sidebar mx-auto" style="min-height: auto; height: auto; display: none;"></div> <div class="js-report-ad-button-container mx-auto" style="width: 300px"></div> </div> <div id="answers"> <a name="tab-top"></a> <div id="answers-header"> <div class="answers-subheader d-flex ai-center mb8"> <div class="flex--item fl1"> <h2 class="mb0" data-answercount=""> 5 に答える <span style="display:none;" itemprop="answerCount">5</span> </h2> </div> </div> </div> <a name="7"></a> <div id="answer-7" class="answer js-answer accepted-answer" data-answerid="7" data-parentid="4" data-score="506" data-position-on-page="1" data-highest-scored="1" data-question-has-accepted-highest-score="1" itemprop="suggestedAnswer" itemscope="" itemtype="https://schema.org/Answer"> <div class="post-layout"> <div class="votecell post-layout--left"> <div class="js-voting-container d-flex jc-center fd-column ai-stretch gs4 fc-black-200" data-post-id="7"> <button class="js-vote-up-btn flex--item s-btn s-btnunset c-pointer " data-controller="s-tooltip" data-s-tooltip-placement="right" aria-pressed="false" aria-label="Up vote" data-selected-classes="fc-theme-primary" data-unselected-classes="" aria-describedby="--stacks-s-tooltip-dgvag2l3"> <svg aria-hidden="true" class="svg-icon iconArrowUpLg" width="36" height="36" viewBox="0 0 36 36"><path d="M2 25h32L18 9 2 25Z"></path></svg> </button><div id="--stacks-s-tooltip-dgvag2l3" class="s-popover s-popovertooltip pe-none" aria-hidden="true" role="tooltip">This answer is useful<div class="s-popover--arrow"></div></div> <div class="js-vote-count flex--item d-flex fd-column ai-center fc-black-500 fs-title" itemprop="upvoteCount" data-value="3"> 3 </div> <button class="js-vote-down-btn flex--item s-btn s-btnunset c-pointer " data-controller="s-tooltip" data-s-tooltip-placement="right" aria-pressed="false" aria-label="Down vote" data-selected-classes="fc-theme-primary" data-unselected-classes="" aria-describedby="--stacks-s-tooltip-gn8ppsfv"> <svg aria-hidden="true" class="svg-icon iconArrowDownLg" width="36" height="36" viewBox="0 0 36 36"><path d="M2 11h32L18 27 2 11Z"></path></svg> </button> </div> </div> <div class="answercell post-layout--right"> <div class="s-prose js-post-body" itemprop="text"> <p>単純なテキスト領域を使用する代わりに、tinyMCE のような WYSIWYG エディターを試してみてください。設定を少しいじった後、ユーザーが入力した内容の HTML を作成できるようになるため、改行を取得して<code><br></code>タグに変換し、 <code> </code>(x4) または x8 または必要なものに変換するタブ。すべてのコントロールを削除して、必ずしも WYSIWYG エディターのように見えないようにすることもできます。</p> <p>編集: WYSIWYG (What You See Is What You Get) - tinyMCE ( <a href="http://www.tinymce.com/" rel="nofollow">http://www.tinymce.com/</a> ) はそのようなエディタの 1 つです。彼らのサイトの指示に従うことができますが、基本的には JS から読み込まれ、テキスト領域がエディターで上書きされます。ユーザーが保存などをクリックすると (ユーザーが完了したことを JS 経由で tinyMCE に伝えます)、表示どおりにテキストを取得し、それを html に変換します。変換されたテキストは、DB に保存するものです。保存されているのはhtmlであるため、すべての改行と空白が保持されます。このようなツールを実装するには、いくつかの JS スキルが必要です。試してみて、どのような問題が発生するかを確認してください。これは一種の過剰な解決策です。しかし、tinyMCE を適切にセットアップすれば、DB に格納されるものを完全に制御できます。</p> </div> <div class="mt24"> <div class="user-action-time" style="color:#999;text-align:right;">于 2013-04-02T19:03:47.537 に答える</div> </div> </div> </div> </div><a name="7"></a> <div id="answer-7" class="answer js-answer accepted-answer" data-answerid="7" data-parentid="4" data-score="506" data-position-on-page="1" data-highest-scored="1" data-question-has-accepted-highest-score="1" itemprop="suggestedAnswer" itemscope="" itemtype="https://schema.org/Answer"> <div class="post-layout"> <div class="votecell post-layout--left"> <div class="js-voting-container d-flex jc-center fd-column ai-stretch gs4 fc-black-200" data-post-id="7"> <button class="js-vote-up-btn flex--item s-btn s-btnunset c-pointer " data-controller="s-tooltip" data-s-tooltip-placement="right" aria-pressed="false" aria-label="Up vote" data-selected-classes="fc-theme-primary" data-unselected-classes="" aria-describedby="--stacks-s-tooltip-dgvag2l3"> <svg aria-hidden="true" class="svg-icon iconArrowUpLg" width="36" height="36" viewBox="0 0 36 36"><path d="M2 25h32L18 9 2 25Z"></path></svg> </button><div id="--stacks-s-tooltip-dgvag2l3" class="s-popover s-popovertooltip pe-none" aria-hidden="true" role="tooltip">This answer is useful<div class="s-popover--arrow"></div></div> <div class="js-vote-count flex--item d-flex fd-column ai-center fc-black-500 fs-title" itemprop="upvoteCount" data-value="1"> 1 </div> <button class="js-vote-down-btn flex--item s-btn s-btnunset c-pointer " data-controller="s-tooltip" data-s-tooltip-placement="right" aria-pressed="false" aria-label="Down vote" data-selected-classes="fc-theme-primary" data-unselected-classes="" aria-describedby="--stacks-s-tooltip-gn8ppsfv"> <svg aria-hidden="true" class="svg-icon iconArrowDownLg" width="36" height="36" viewBox="0 0 36 36"><path d="M2 11h32L18 27 2 11Z"></path></svg> </button> </div> </div> <div class="answercell post-layout--right"> <div class="s-prose js-post-body" itemprop="text"> <p><code><pre></code>タグまたはまたはを含む任意のタグで<code>white-space: pre</code>ラップしてエコーアウトします<code>white-space: pre-wrap</code>。その上にも使用してください<code>htmlspecialchars</code>。</p> </div> <div class="mt24"> <div class="user-action-time" style="color:#999;text-align:right;">于 2013-04-02T17:47:20.623 に答える</div> </div> </div> </div> </div><a name="7"></a> <div id="answer-7" class="answer js-answer accepted-answer" data-answerid="7" data-parentid="4" data-score="506" data-position-on-page="1" data-highest-scored="1" data-question-has-accepted-highest-score="1" itemprop="suggestedAnswer" itemscope="" itemtype="https://schema.org/Answer"> <div class="post-layout"> <div class="votecell post-layout--left"> <div class="js-voting-container d-flex jc-center fd-column ai-stretch gs4 fc-black-200" data-post-id="7"> <button class="js-vote-up-btn flex--item s-btn s-btnunset c-pointer " data-controller="s-tooltip" data-s-tooltip-placement="right" aria-pressed="false" aria-label="Up vote" data-selected-classes="fc-theme-primary" data-unselected-classes="" aria-describedby="--stacks-s-tooltip-dgvag2l3"> <svg aria-hidden="true" class="svg-icon iconArrowUpLg" width="36" height="36" viewBox="0 0 36 36"><path d="M2 25h32L18 9 2 25Z"></path></svg> </button><div id="--stacks-s-tooltip-dgvag2l3" class="s-popover s-popovertooltip pe-none" aria-hidden="true" role="tooltip">This answer is useful<div class="s-popover--arrow"></div></div> <div class="js-vote-count flex--item d-flex fd-column ai-center fc-black-500 fs-title" itemprop="upvoteCount" data-value="0"> 0 </div> <button class="js-vote-down-btn flex--item s-btn s-btn__unset c-pointer " data-controller="s-tooltip" data-s-tooltip-placement="right" aria-pressed="false" aria-label="Down vote" data-selected-classes="fc-theme-primary" data-unselected-classes="" aria-describedby="--stacks-s-tooltip-gn8ppsfv"> <svg aria-hidden="true" class="svg-icon iconArrowDownLg" width="36" height="36" viewBox="0 0 36 36"><path d="M2 11h32L18 27 2 11Z"></path></svg> </button> </div> </div> <div class="answercell post-layout--right"> <div class="s-prose js-post-body" itemprop="text"> <p>私はちょうどあなたのために働くかもしれないより簡単な代替案を思いつきました. テキスト領域を単純にエンコードする関数 onSubmit() をフォームに追加して、JSエンコードされたテキストをDBに保存します。<code>document.getElementById('textArea').value = encodeURI(document.getElementById('textArea').value);</code></p> <p>次に、そのテキストを解析して正しく表示するだけで済みます。これは、php が urldecode() 関数を使用して行うと私は信じています。ただし、正しく表示するために HTML に変換する必要がある場合は、regEx の置き換えが必要になる場合があります。</p> </div> <div class="mt24"> <div class="user-action-time" style="color:#999;text-align:right;">于 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