KrISS json

A simple and smart (or stupid) json schema validator

This project was an hobby when exploring the functional programming in PHP. It is not intended to be used in the real world, but for now (2023-05), it validates old drafts to draft7.

php schema/test.php

tests suite:	nb tests	nb files
draft3: 	  520/520	    35/35
draft4: 	  735/735	    38/38
draft6: 	  995/995	    48/48
draft7: 	1286/1286	    57/57
draft2019-09: 	1571/1651	    59/68
draft2020-12: 	1579/1677	    58/68
draft-next: 	1623/1724	    58/68

To validate a schema, include schema/json.php and call json_schema function.

<?php

include_once(__DIR__ . '/schema/json.php');

$json = 'https://json-schema.org/learn/examples/address.schema.json';
$address = file_get_contents($json);

$data = '
{
  "locality":"locality",
  "region":"region"
}
';
var_dump(json_schema(json_decode($address), json_decode($data)));

$data = '
{
  "locality":"locality",
  "region":"region",
  "country-name":"country-name"
}
';
var_dump(json_schema(json_decode($address), json_decode($data)));

$data = '
{
  "locality":"locality",
  "region":"region",
  "country-name":"country-name",
  "post-office-box":"post-office-box"
}
';
var_dump(json_schema(json_decode($address), json_decode($data)));

$data = '
{
  "locality":"locality",
  "region":"region",
  "country-name":"country-name",
  "post-office-box":"post-office-box",
  "street-address":"street-address"
}
';
var_dump(json_schema(json_decode($address), json_decode($data)));

php index.php will output:

bool(false)
bool(true)
bool(false)
bool(true)

I did not plan to update the code to valid more recent drafts, but don't hesitate to pull request!

Licence

Copyleft (ɔ) - Tontof - https://tontof.net

Use KrISS json at your own risk.

Free software means users have the four essential freedoms:

• to run the program
• to study and change the program in source code form
• to redistribute exact copies, and
• to distribute modified versions.