PHP json编码的字符串转义

Question

我需要转义json编码的字符串。

我在字符串下面有encode。

json_encode(['test1' => '','test2' => '','test3' => ''])

它将存储在mysql表格中，

"{\"test1\":\"\",\"test2\":\"\",\"test3\":\"\"}"

我想存储像，

{"test":"","test2":"","test3":""}

谢谢！

Answer 1

尝试以下代码

<?php
$json = json_encode(['test1' => '','test2' => '','test3' => '']);
$dbjson = "{\"title\":\"\",\"description\":\"\",\"keywords\":\"\"}";

echo "<pre>";
$value = json_encode(json_decode($dbjson));
print_r($value); // output : {"title":"","description":"","keywords":""}
?>

Answer 2

添加JSON_UNESCAPED_SLASHES作为最后一个参数

echo json_encode(['test1' => '','test2' => '','test3' => ''],JSON_UNESCAPED_SLASHES)

输出

{"test1":"","test2":"","test3":""}

Answer 3

您可以使用stripslashes功能

$string = '{\"title\":\"\",\"description\":\"\",\"keywords\":\"\"}';
echo stripslashes($string);

您也可以使用preg_replace

<?php
 $string = '{\"title\":\"\",\"description\":\"\",\"keywords\":\"\"}';
 echo $new_str = preg_replace('~[\\\\/*?<>|]~', '', $string);
?>

输出：

{ "title ": "", "description ": "", "keywords ": ""}