Example how to pretty display decoded json in PHP. Keeps structure for bindings. By clicking on element it possible to get full path from top parent to the nested elements.

prettyArray.php

<?php
declare(strict_types = 1);

function isSequential($array)
{
    return array_keys($array) === range(0, count($array) - 1);
}

function prettyArray($value, $is_last = true, $indent = 0)
{

    $result = '';

    $soft_indent = str_repeat('&nbsp;', 4);

    if (is_array($value)) {

        $result .= '<div>';

        $is_sequential = isSequential($value);

        $result .= '<div>';
        $result .= str_repeat($soft_indent, $indent);
        $result .= $is_sequential ? '[' : '{';
        $result .= '</div>';

        $indent++;

        end($value);
        $last_key = key($value);

        foreach ($value as $key => $item) {
            $result .= '<div data-key="' . $key . '">';
            $result .= str_repeat($soft_indent, $indent);

            if (!$is_sequential) {
                $result .= '<span class="key">"' . $key . '":</span>&nbsp;';
            }

            $result .= prettyArray($item, $last_key === $key, $indent + 1);

            $result .= '</div>';
        }

        $result .= '<div>';
        $result .= str_repeat($soft_indent, $indent - 1);
        $result .= $is_sequential ? ']' : '}';
        $result .= $is_last ? '' : ',';
        $result .= '</div>';

        $result .= '</div>';

    } else {

        if (is_string($value)) {
            $result .= '<span class="string">"' . $value . '"</span>';
        } elseif (is_numeric($value)) {
            $result .= '<span class="num">' . $value . '</span>';
        } elseif (is_bool($value)) {
            $result .= '<span class="boolean">' . var_export($value, true) . '</span>';
        } else {
            $result .= '<span class="null">' . var_export($value, true) . '</span>';
        }

        $result .= $is_last ? '' : ',';
    }

    return $result;
}

$test = [
    'test1' => 1,
    'test2' => [23, 54, 76],
    'test3' => [
        'value1' => null,
        'value2' => false,
    ],
    'test4' => 'string',
];

?>
<style>
    .key {
        color: red;
    }

    .string {
        color: green;
    }
</style>
<?= prettyArray($test); ?>