Validate that JSON array has one associative array with fixed integer value - php

Question

I am trying to validate some JSON using Opis's package. I am trying to validate that an array has at least one associative array with an id of value 1. Here is the code I've got:
$json = [
[
'id' => 1,
],
[
'id' => 2,
],
[
'id' => 3
]
];
$rules = [
'type' => 'array',
'contains' => [
'type' => 'array',
'properties' => [
'id' => [
'type' => 'integer',
'const' => 1,
],
],
'required' => ['id']
],
'minContains' => 1,
];
$validated = Common::validateJSON($json, json_encode($rules));
and here is the validateJSON method code:
public static function validateJSON($json, $rules)
{
$validator = new Validator();
// Validate
$result = $validator->validate($json, $rules);
if ($result->isValid()) {
return true;
}
$errorMessages = [];
if ($result->hasError()) {
$formatter = new ErrorFormatter();
$errorMessages[] = $formatter->format($result->error());
}
return $errorMessages;
}
so, in this case $validated returns:
array:1 [
0 => array:1 [
"/" => array:1 [
0 => "At least 1 array items must match schema"
]
]
]
changing $rules to this:
$rules = [
'type' => 'array',
'contains' => [
'type' => 'array',
],
'minContains' => 1,
];
returns the same result which is weird for me.
Changing const to any number doesn't change what is returned. So, my guess is that I am doing something wrong but I don't know what.
I've been googling various things nothing helped. I've been looking at the JSON schema site, particularly here but I haven't figured it out.

Answer 1

Before validating, as I am not json decoding the data as it is not coming from an http request, do this:
$json = json_encode($json);
$json = json_decode($json); // this, I think, will turn associative arrays into objects which makes it work
and the second type must be object.