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格式化多行文本到Js可用格式

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Release： 2016-05-26 08:19:06
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js里现在存写模板的场景好多，如：弹框类的html代码模板等，js不支持换行的长文本写法，必需要一行行的加起来，如：

var content = '

row 1
'
+ '
row 2
';
而不可以写成：
var content = '
 row 1

row2 
 ';
于是小加工一php小段代码，简化手工打的操作

 [文件]     tojs.php 

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html lang="en">
    <head>
      <meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
      <title>Str To Js String</title>
        <style type="text/css">
.content-box { border: 1px #f0f0f0 slid; border-left: 4px #e0e0e0 solid; padding: 5px 5px 5px 10px; }
</style>
    </head>
    <body>
<h1>输入格式化的文本：</h1>
<?php 
$jsContent  = &#39;&#39;;
if(isset($_POST[&#39;content&#39;]) && $_POST[&#39;content&#39;]) { 
    $content    = strtr(htmlspecialchars($_POST[&#39;content&#39;]), array("\r\n" => "\n"));
    $rows       = explode("\n", $content);
    foreach($rows as $row) {
        $jsContent .= &#39;+ \&#39;&#39; . $row . "&#39;<br/>";
    }
    $jsContent{0}   = &#39; &#39;;
} 
?>
        <form action="#" method="post">
            <textarea name="content" style="width: 99%;height: 300px; "></textarea>
            <p><input type="submit" value="提交" /></p>
        </form>
<h2>格式化后的结果：</h2>
<p class="content-box">
    <?php echo $jsContent;?>
</p>
    </body>
</html>
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source：php.cn
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