php - 如何将换行符转换为\n

Question

我有一个来自数据库的返回字符串。

返回字符串必须采用 javascript 格式。

<?php
    $db = "this is a line
           this is a new line";
?>

我将如何将上述转换为:

<?php $db = "this is a line \n this is a new line"; ?>

Javascript:

<script>
    var jdb = <?php echo $db; ?>
</script>

Answer 1

试试这个(2014-11-08 更新):

<?php

   $db = "this is a line
          this is a new line
          ";

?>
<script type="text/javascript">
  var jdb = <?php echo json_encode($db) ?>;
</script>