Online PHP editor | output for QAr6Q

@ 2015-11-18T10:34:06Z

<?php

function objectType($name, ...$fields) {
    if (empty($fields)) {
        throw new \RuntimeException();
    }

    if (!is_string(key($fields[0]))) {
        $interfaces = array_shift($fields);
    } else {
        $interfaces = [];
    }

    if (empty($fields)) {
        throw new \RuntimeException();
    }

    $def = [
        'name' => $name,
        'interfaces' => $interfaces,
        'fields' => [],
    ];

    foreach ($fields as &$field) {
        $def['fields'][$field['name']] = $field;
    }
    
    return $def;
}

function field($name, $type, ...$args) {
    $def = [
        'name' => $name,
        'type' => $type,
        'args' => [],
        'resolve' => null,
    ];

    if (!empty($args) && is_callable(end($args))) {
        $def['resolve'] = array_pop($args);
    }

    foreach ($args as &$arg) {
        $def['args'][$arg['name']] = $arg;
    }

    return $def;
}

function argument($name, $type, $value = null) {
    $def = [
        'name' => $name,
        'type' => $type,
        'defaultValue' => $value,
    ];
    
    return $def;
}

$IntType = ['name' => 'Int'];
$StringType = ['name' => 'String'];

$BlogType = objectType('Blog',
    field('id', $IntType),
    field('name', $StringType));

$UserType = objectType('Blog',
    field('id', $IntType, function () {}),
    field('email', $StringType));

$QueryType = objectType('Query',
    field('blog', $BlogType, argument('id', $IntType)),
    field('user', $UserType, argument('id', $IntType)));

var_dump($QueryType);

Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: array(3) { ["name"]=> string(5) "Query" ["interfaces"]=> array(0) { } ["fields"]=> array(2) { ["blog"]=> array(4) { ["name"]=> string(4) "blog" ["type"]=> array(3) { ["name"]=> string(4) "Blog" ["interfaces"]=> array(0) { } ["fields"]=> array(2) { ["id"]=> array(4) { ["name"]=> string(2) "id" ["type"]=> array(1) { ["name"]=> string(3) "Int" } ["args"]=> array(0) { } ["resolve"]=> NULL } ["name"]=> array(4) { ["name"]=> string(4) "name" ["type"]=> array(1) { ["name"]=> string(6) "String" } ["args"]=> array(0) { } ["resolve"]=> NULL } } } ["args"]=> array(1) { ["id"]=> array(3) { ["name"]=> string(2) "id" ["type"]=> array(1) { ["name"]=> string(3) "Int" } ["defaultValue"]=> NULL } } ["resolve"]=> NULL } ["user"]=> array(4) { ["name"]=> string(4) "user" ["type"]=> array(3) { ["name"]=> string(4) "Blog" ["interfaces"]=> array(0) { } ["fields"]=> array(2) { ["id"]=> array(4) { ["name"]=> string(2) "id" ["type"]=> array(1) { ["name"]=> string(3) "Int" } ["args"]=> array(0) { } ["resolve"]=> object(Closure)#1 (0) { } } ["email"]=> array(4) { ["name"]=> string(5) "email" ["type"]=> array(1) { ["name"]=> string(6) "String" } ["args"]=> array(0) { } ["resolve"]=> NULL } } } ["args"]=> array(1) { ["id"]=> array(3) { ["name"]=> string(2) "id" ["type"]=> array(1) { ["name"]=> string(3) "Int" } ["defaultValue"]=> NULL } } ["resolve"]=> NULL } } }
Output for 5.5.0 - 5.5.38: Parse error: syntax error, unexpected '.', expecting '&' or variable (T_VARIABLE) in /in/QAr6Q on line 3
Process exited with code 255.

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