PHP [JSON API] Auslesen und Suchanfrrage eines API-Objekts

[
    {
        "id": "bitcoin", 
        "name": "Bitcoin", 
        "symbol": "BTC", 
        "rank": "1", 
        "price_usd": "2433.16", 
        "price_btc": "1.0", 
        "24h_volume_usd": "1554460000.0", 
        "market_cap_usd": "39778698747.0", 
        "available_supply": "16348575.0", 
        "total_supply": "16348575.0", 
        "percent_change_1h": "1.35", 
        "percent_change_24h": "7.94", 
        "percent_change_7d": "33.15", 
        "last_updated": "1495626860"
    }, 
    {
        "id": "ethereum", 
        "name": "Ethereum", 
        "symbol": "ETH", 
        "rank": "2", 
        "price_usd": "211.425", 
        "price_btc": "0.0892244", 
        "24h_volume_usd": "681576000.0", 
        "market_cap_usd": "19426316405.0", 
        "available_supply": "91882778.0", 
        "total_supply": "91882778.0", 
        "percent_change_1h": "4.63", 
        "percent_change_24h": "20.88", 
        "percent_change_7d": "133.92", 
        "last_updated": "1495626863"
    }, 
    {
        "id": "ripple", 
        "name": "Ripple", 
        "symbol": "XRP", 
        "rank": "3", 
        "price_usd": "0.344936", 
        "price_btc": "0.00014557", 
        "24h_volume_usd": "212675000.0", 
        "market_cap_usd": "13291259579.0", 
        "available_supply": "38532538149.0", 
        "total_supply": "99994742943.0", 
        "percent_change_1h": "-1.9", 
        "percent_change_24h": "9.59", 
        "percent_change_7d": "-8.28", 
        "last_updated": "1495626842"
    }
]

$url = 'https://api.coinmarketcap.com/v1/ticker/?limit=30'; 
$data = file_get_contents($url); 
$basics = json_decode($data, true); 

   foreach ($basics as $basic) {
	echo $basic['name'] . '<br>';
        echo $basic['percent_change_24h'] . '<br><br>';
   }

$basics = json_decode($data, true);

$lower = array_filter($basics, function ($item) {
    return $item['percent_change_24h'] < 20;
});

$upper = array_filter($basics, function ($item) {
    return $item['percent_change_24h'] > 20;
});

Parse error: syntax error, unexpected T_VARIABLE in .../test.php on line 9

<?php

$basics = [
    ['percent_change_24h' => 12],
    ['percent_change_24h' => 22],
];

$lower = array_filter($basics, function ($item) {
    return $item['percent_change_24h'] < 20;
});

$upper = array_filter($basics, function ($item) {
    return $item['percent_change_24h'] > 20;
});

foreach ($lower as $item) {
    print_r($item);
}

foreach ($upper as $item) {
    print_r($item);
}

<?php

$url = 'https://api.coinmarketcap.com/v1/ticker/?limit=30'; 
$data = file_get_contents($url);  

$basics = json_decode($data, true);
 
 
$lower = array_filter($basics, function ($item) {
    return $item['percent_change_24h'] < 20;
});
 
$upper = array_filter($basics, function ($item) {
    return $item['percent_change_24h'] > 20;
});
 
foreach ($lower as $item) {
    print_r($item);
}
 
foreach ($upper as $item) {
    print_r($item);
}


?>

$lower = array_filter($basics, function ($item) {

<?php

$url = 'https://api.coinmarketcap.com/v1/ticker/?limit=30';
$data = file_get_contents($url);

$basics = json_decode($data, true);

function lower($item)
{
    return $item['percent_change_24h'] < 20;
}

function upper($item)
{
    return $item['percent_change_24h'] > 20;
}

$lower = array_filter($basics, 'lower');
 
$upper = array_filter($basics, 'upper');

?>

<p>lower</p>
<pre>
<?php print_r($lower) ?>
</pre>

<p>upper</p>
<pre>
<?php print_r($upper) ?>
</pre>

$lower = [];
foreach ($basics as $item) {
    if ($item['percent_change_24h'] < 20) {
        $lower[] = $item;
    }
}

Parse error: syntax error, unexpected '$url' (T_VARIABLE) in /users/compytyec/www/index.php on line 3