How to convert string to json in php

php method to convert string to json: first create a PHP sample file; then use the "var_dump(json_decode($json));" method to convert json.

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php converts string to json

<?php
$json = &#39;{"a":1,"b":2,"c":3,"d":4,"e":5}&#39;;
var_dump(json_decode($json));
var_dump(json_decode($json, true));?>

The results are

object(stdClass)#1 (5) {
    ["a"] => int(1)
    ["b"] => int(2)
    ["c"] => int(3)
    ["d"] => int(4)
    ["e"] => int(5)
}
array(5) {
    ["a"] => int(1)
    ["b"] => int(2)
    ["c"] => int(3)
    ["d"] => int(4)
    ["e"] => int(5)
}

If you return null after json_decode, have you written the string like this "{ 'bar': 'baz' }", this is OK in JS It is parsed into JSON normally, but it should be written as '{ "bar": "baz" }' in PHP, and the attributes and values ​​must use double quotes.

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