No more than 3 backslashes are allowed in json_encode output.

Question

I have a piece of code that handles a very large amount of data and converts it using json_encode (around 255,000 characters). But I noticed that each time json_encode returns no more than 3 backslashes in the result. Is this intentional, a bug, or something else?

<?php
header("content-type: application/json");
function Json_Zip($dir, $data) {
if ($dh = opendir($dir)) {
    while (($entry2 = readdir($dh)) !== false) {
        if ($entry2 != "." && $entry2 != "..") {
            $entry2 = $dir . $entry2;
                if (is_dir($entry2)) {
                    $data[$entry2] = 0;
                    $data = Json_Zip($entry2."/", $data);
                } else {
                    $fileContent = file_get_contents($entry2);
                    $data[$entry2] = $fileContent;
                }
        }
    }
}
return $data;
}

file_put_contents("content.json",json_encode(Json_Zip("./", []), JSON_UNESCAPED_UNICODE));

When I use a script to convert a file to a directory, this happens:

(starting with: "hercher "Nom : Le mei") (after json_encode After: "hercher "Nom : Le mei"), I tried updating the PHP version, but nothing changed.

Answer 1

I didn't validate the function in PHP, but your JSON input is wrong.

JSON consists of key-value pairs, for example:

{"hercher Nom": "Le mei"}

Or multiple key-value pairs separated by commas:

{"hercher Nom": "Le mei", "hercher Nom 2": "Le mei 2"}

You can adjust the arrangement of the content slightly for readability, but this is not technically necessary: ​​

{
    "hercher Nom": "Le mei",
    "hercher Nom 2": "Le mei 2"
}