PHP implements formatting multi-line text into Js available format

There are many scenarios for writing templates in js, such as: html code templates for pop-up frames, etc. JS does not support long text writing with line breaks, and it is necessary to add up one line, such as:

Copy the codeThe code is as follows:

var content = '<div>row 1</div>'

+ '<div>row 2</div>';

It cannot be written as:

Copy the codeThe code is as follows:

var content = '<div> row 1</div>

<div>row2 </div> ';

So I processed a small piece of php code to simplify the manual operation.

&lt;!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http:///TR/html4/"&gt;
&lt;html lang="en"&gt;
  &lt;head&gt;
   &lt;meta http-equiv="Content-Type" content="text/html;charset=UTF-8"&gt;
   &lt;title&gt;Str To Js String&lt;/title&gt;
    &lt;style type="text/css"&gt;
.content-box { border: 1px #f0f0f0 slid; border-left: 4px #e0e0e0 solid; padding: 5px 5px 5px 10px; }
&lt;/style&gt;
  &lt;/head&gt;
  &lt;body&gt;
&lt;h1&gt;Enter formatted text：&lt;/h1&gt;
&lt;?php 
$jsContent = '';
if(isset($_POST['content']) &amp;&amp; $_POST['content']) { 
  $content  = strtr(htmlspecialchars($_POST['content']), array("\r\n" =&gt; "\n"));
  $rows    = explode("\n", $content);
  foreach($rows as $row) {
    $jsContent .= '+ \'' . $row . "'&lt;br/&gt;";
  }
  $jsContent{0}  = ' ';
} 
?&gt;
    &lt;form action="#" method="post"&gt;
      &lt;textarea name="content" style="width: 99%;height: 300px; "&gt;&lt;/textarea&gt;
      &lt;p&gt;&lt;input type="submit" value="submit" /&gt;&lt;/p&gt;
    &lt;/form&gt;
&lt;h2&gt;Formatted results：&lt;/h2&gt;
&lt;div class="content-box"&gt;
  &lt;?php echo $jsContent;?&gt;
&lt;/div&gt;
  &lt;/body&gt;
&lt;/html&gt;

The above is the entire content of this article, I hope you like it.