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run code in 300+ PHP versions simultaneously

@ 2021-09-03T14:52:24Z

<?php

$json = '{
"world": {
    "france": {
        "city": {
            "city_1": {
                "name": "paris",
                "titre": "lorem ipsum"
            },
            "city_2": {
                "name": "marseille",
                "titre": "dolor sit amet"
            }
        }
    },
    "usa": {
        "city": {
            "city_1": {
                "name": "new york",
                "titre": "lorem ipsum"
            },
            "city_2": {
                "name": "los angeles",
                "titre": "lorem ipsum"
            },
            "city_3": {
                "name": "portland",
                "titre": "lorem ipsum"
            }
        }
    }
}
}';

$data = json_decode($json, true);
$scenario = '';
foreach($data['world'] as $country=>$cities) {
    $cityArray = array();
    foreach($cities['city'] as $key=>$values) {
        $cityArray[] = $values['name'];
    }    
    $scenario .= '<option value="'.$country.'" data-city="'.implode(',', $cityArray).'">'.$country.'</option>';
}

echo $scenario;

Output for git.master, git.master_jit, rfc.property-hooks: <option value="france" data-city="paris,marseille">france</option><option value="usa" data-city="new york,los angeles,portland">usa</option>

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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