How to not escape backslashes in php

How to prevent backslash escaping in php: 1. Use "str_replace("\/", "/", json_encode($a));"; 2. Use "json_encode($a, JSON_UNESCAPED_SLASHES)".

The operating environment of this article: Windows7 system, PHP7.1 version, DELL G3 computer

php How to prevent backslash conversion Meaning?

How to use json_encode without automatically escaping slashes.

For the following array $a, there are two ways to solve it:

$a = array(
 'http://www.baidu.com',
 'http://www.baidu.com',
 'http://www.baidu.com',
 'http://www.baidu.com',
 'http://www.baidu.com'
);

One, regular replacement:

$a = str_replace("\/", "/", json_encode($a));

var_dump($a);

Second, if the PHP version is 5.4 and above:

var_dump(json_encode($a,JSON_UNESCAPED_SLASHES));

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