如何使用php将以下字符串转换为数组

Question

How to convert the below string into array using php

String : "[{\\"site_id\\":1,\\"posts\\":{\\"0\\":146,\\"2\\":104,\\"3\\":80},\\"groups\\":[{\\"group_id\\":1,\\"site_id\\":1,\\"group_name\\":\\"Default List\\",\\"posts\\":{\\"0\\":146,\\"2\\":104,\\"3\\":80}}]}]"

php code: json_decode(string, true) ;

I am using above code to convert the string into an array, still no use

can know to how to convert the string into the array

I want to get the posts id from the string.

Answer 1

$jsonData = "[{\"site_id\":1,\"posts\":{\"0\":146,\"2\":104,\"3\":80},\"groups\":[{\"group_id\":1,\"site_id\":1,\"group_name\":\"Default List\",\"posts\":{\"0\":146,\"2\":104,\"3\":80}}]}]";    
$data = json_decode($jsonData);

Answer 2

It seems that your String is JSON - so you could translate that JSON into the appropriate datatype in php simply by using the built int json_decode function

http://php.net/manual/de/function.json-decode.php

$json = "['a','b','c']";
var_dump(json_decode($json), true);

produces

array(3) {
[0] => 'a', 
[1] => 'b',
[2] => 'c'

}