Forráskód:

	<?php
		$fu   = fopen( "https://api.coingecko.com/api/v3/exchange_rates" , "r" ) ;

		$json = "";
		while (!feof($fu))  $json .= fread($fu, 1024);

		fclose( $fu ) ;

		$adat = json_decode( $json ) ;
	?>

	<div style=' margin: 18px 0 18px 48px; font-family: Courier; color:#226;'>
		<pre><?php print_r($adat); ?></pre>
	</div>

Eredmény:

stdClass Object
(
    [rates] => stdClass Object
        (
            [btc] => stdClass Object
                (
                    [name] => Bitcoin
                    [unit] => BTC
                    [value] => 1
                    [type] => crypto
                )

            [eth] => stdClass Object
                (
                    [name] => Ether
                    [unit] => ETH
                    [value] => 36.071
                    [type] => crypto
                )

            [ltc] => stdClass Object
                (
                    [name] => Litecoin
                    [unit] => LTC
                    [value] => 790.492
                    [type] => crypto
                )

            [bch] => stdClass Object
                (
                    [name] => Bitcoin Cash
                    [unit] => BCH
                    [value] => 288.342
                    [type] => crypto
                )

            [bnb] => stdClass Object
                (
                    [name] => Binance Coin
                    [unit] => BNB
                    [value] => 135.38
                    [type] => crypto
                )

            [eos] => stdClass Object
                (
                    [name] => EOS
                    [unit] => EOS
                    [value] => 149114.841
                    [type] => crypto
                )

            [xrp] => stdClass Object
                (
                    [name] => XRP
                    [unit] => XRP
                    [value] => 39011.245
                    [type] => crypto
                )

            [xlm] => stdClass Object
                (
                    [name] => Lumens
                    [unit] => XLM
                    [value] => 291411.782
                    [type] => crypto
                )

            [link] => stdClass Object
                (
                    [name] => Chainlink
                    [unit] => LINK
                    [value] => 5147.064
                    [type] => crypto
                )

            [dot] => stdClass Object
                (
                    [name] => Polkadot
                    [unit] => DOT
                    [value] => 18566.1
                    [type] => crypto
                )

            [yfi] => stdClass Object
                (
                    [name] => Yearn.finance
                    [unit] => YFI
                    [value] => 16.218
                    [type] => crypto
                )

            [usd] => stdClass Object
                (
                    [name] => US Dollar
                    [unit] => $
                    [value] => 95798.577
                    [type] => fiat
                )

            [aed] => stdClass Object
                (
                    [name] => United Arab Emirates Dirham
                    [unit] => DH
                    [value] => 351867.215
                    [type] => fiat
                )

            [ars] => stdClass Object
                (
                    [name] => Argentine Peso
                    [unit] => $
                    [value] => 101199708.508
                    [type] => fiat
                )

            [aud] => stdClass Object
                (
                    [name] => Australian Dollar
                    [unit] => A$
                    [value] => 153016.672
                    [type] => fiat
                )

            [bdt] => stdClass Object
                (
                    [name] => Bangladeshi Taka
                    [unit] => ৳
                    [value] => 11611558.048
                    [type] => fiat
                )

            [bhd] => stdClass Object
                (
                    [name] => Bahraini Dinar
                    [unit] => BD
                    [value] => 36104.28
                    [type] => fiat
                )

            [bmd] => stdClass Object
                (
                    [name] => Bermudian Dollar
                    [unit] => $
                    [value] => 95798.577
                    [type] => fiat
                )

            [brl] => stdClass Object
                (
                    [name] => Brazil Real
                    [unit] => R$
                    [value] => 552000.98
                    [type] => fiat
                )

            [cad] => stdClass Object
                (
                    [name] => Canadian Dollar
                    [unit] => CA$
                    [value] => 136972.422
                    [type] => fiat
                )

            [chf] => stdClass Object
                (
                    [name] => Swiss Franc
                    [unit] => Fr.
                    [value] => 86954.548
                    [type] => fiat
                )

            [clp] => stdClass Object
                (
                    [name] => Chilean Peso
                    [unit] => CLP$
                    [value] => 91664868.469
                    [type] => fiat
                )

            [cny] => stdClass Object
                (
                    [name] => Chinese Yuan
                    [unit] => ¥
                    [value] => 699061.376
                    [type] => fiat
                )

            [czk] => stdClass Object
                (
                    [name] => Czech Koruna
                    [unit] => Kč
                    [value] => 2311428.067
                    [type] => fiat
                )

            [dkk] => stdClass Object
                (
                    [name] => Danish Krone
                    [unit] => kr.
                    [value] => 687843.075
                    [type] => fiat
                )

            [eur] => stdClass Object
                (
                    [name] => Euro
                    [unit] => €
                    [value] => 92216.38
                    [type] => fiat
                )

            [gbp] => stdClass Object
                (
                    [name] => British Pound Sterling
                    [unit] => £
                    [value] => 76861.401
                    [type] => fiat
                )

            [gel] => stdClass Object
                (
                    [name] => Georgian Lari
                    [unit] => ₾
                    [value] => 270151.987
                    [type] => fiat
                )

            [hkd] => stdClass Object
                (
                    [name] => Hong Kong Dollar
                    [unit] => HK$
                    [value] => 746164.578
                    [type] => fiat
                )

            [huf] => stdClass Object
                (
                    [name] => Hungarian Forint
                    [unit] => Ft
                    [value] => 37104834.294
                    [type] => fiat
                )

            [idr] => stdClass Object
                (
                    [name] => Indonesian Rupiah
                    [unit] => Rp
                    [value] => 1569461753.55
                    [type] => fiat
                )

            [ils] => stdClass Object
                (
                    [name] => Israeli New Shekel
                    [unit] => ₪
                    [value] => 342556.647
                    [type] => fiat
                )

            [inr] => stdClass Object
                (
                    [name] => Indian Rupee
                    [unit] => ₹
                    [value] => 8329872.987
                    [type] => fiat
                )

            [jpy] => stdClass Object
                (
                    [name] => Japanese Yen
                    [unit] => ¥
                    [value] => 14738898.477
                    [type] => fiat
                )

            [krw] => stdClass Object
                (
                    [name] => South Korean Won
                    [unit] => ₩
                    [value] => 138980555.138
                    [type] => fiat
                )

            [kwd] => stdClass Object
                (
                    [name] => Kuwaiti Dinar
                    [unit] => KD
                    [value] => 29589.019
                    [type] => fiat
                )

            [lkr] => stdClass Object
                (
                    [name] => Sri Lankan Rupee
                    [unit] => Rs
                    [value] => 28394522.261
                    [type] => fiat
                )

            [mmk] => stdClass Object
                (
                    [name] => Burmese Kyat
                    [unit] => K
                    [value] => 200985414.692
                    [type] => fiat
                )

            [mxn] => stdClass Object
                (
                    [name] => Mexican Peso
                    [unit] => MX$
                    [value] => 1974995.822
                    [type] => fiat
                )

            [myr] => stdClass Object
                (
                    [name] => Malaysian Ringgit
                    [unit] => RM
                    [value] => 426782.66
                    [type] => fiat
                )

            [ngn] => stdClass Object
                (
                    [name] => Nigerian Naira
                    [unit] => ₦
                    [value] => 144457548.32
                    [type] => fiat
                )

            [nok] => stdClass Object
                (
                    [name] => Norwegian Krone
                    [unit] => kr
                    [value] => 1081885.71
                    [type] => fiat
                )

            [nzd] => stdClass Object
                (
                    [name] => New Zealand Dollar
                    [unit] => NZ$
                    [value] => 170141.146
                    [type] => fiat
                )

            [php] => stdClass Object
                (
                    [name] => Philippine Peso
                    [unit] => ₱
                    [value] => 5561921.782
                    [type] => fiat
                )

            [pkr] => stdClass Object
                (
                    [name] => Pakistani Rupee
                    [unit] => ₨
                    [value] => 26682985.745
                    [type] => fiat
                )

            [pln] => stdClass Object
                (
                    [name] => Polish Zloty
                    [unit] => zł
                    [value] => 384721.529
                    [type] => fiat
                )

            [rub] => stdClass Object
                (
                    [name] => Russian Ruble
                    [unit] => ₽
                    [value] => 8741367.345
                    [type] => fiat
                )

            [sar] => stdClass Object
                (
                    [name] => Saudi Riyal
                    [unit] => SR
                    [value] => 359301.951
                    [type] => fiat
                )

            [sek] => stdClass Object
                (
                    [name] => Swedish Krona
                    [unit] => kr
                    [value] => 1041264.24
                    [type] => fiat
                )

            [sgd] => stdClass Object
                (
                    [name] => Singapore Dollar
                    [unit] => S$
                    [value] => 129397.916
                    [type] => fiat
                )

            [thb] => stdClass Object
                (
                    [name] => Thai Baht
                    [unit] => ฿
                    [value] => 3245799.488
                    [type] => fiat
                )

            [try] => stdClass Object
                (
                    [name] => Turkish Lira
                    [unit] => ₺
                    [value] => 3460206.284
                    [type] => fiat
                )

            [twd] => stdClass Object
                (
                    [name] => New Taiwan Dollar
                    [unit] => NT$
                    [value] => 3144492.493
                    [type] => fiat
                )

            [uah] => stdClass Object
                (
                    [name] => Ukrainian hryvnia
                    [unit] => ₴
                    [value] => 3997984.816
                    [type] => fiat
                )

            [vef] => stdClass Object
                (
                    [name] => Venezuelan bolívar fuerte
                    [unit] => Bs.F
                    [value] => 9592.311
                    [type] => fiat
                )

            [vnd] => stdClass Object
                (
                    [name] => Vietnamese đồng
                    [unit] => ₫
                    [value] => 2439487559.506
                    [type] => fiat
                )

            [zar] => stdClass Object
                (
                    [name] => South African Rand
                    [unit] => R
                    [value] => 1773826.379
                    [type] => fiat
                )

            [xdr] => stdClass Object
                (
                    [name] => IMF Special Drawing Rights
                    [unit] => XDR
                    [value] => 73173.922
                    [type] => fiat
                )

            [xag] => stdClass Object
                (
                    [name] => Silver - Troy Ounce
                    [unit] => XAG
                    [value] => 2967.876
                    [type] => commodity
                )

            [xau] => stdClass Object
                (
                    [name] => Gold - Troy Ounce
                    [unit] => XAU
                    [value] => 32.822
                    [type] => commodity
                )

            [bits] => stdClass Object
                (
                    [name] => Bits
                    [unit] => μBTC
                    [value] => 1000000
                    [type] => crypto
                )

            [sats] => stdClass Object
                (
                    [name] => Satoshi
                    [unit] => sats
                    [value] => 100000000
                    [type] => crypto
                )

            [cop] => stdClass Object
                (
                    [name] => Colombian Peso
                    [unit] => $
                    [value] => 395997489.691
                    [type] => fiat
                )

            [kes] => stdClass Object
                (
                    [name] => Kenyan Shilling
                    [unit] => KSh
                    [value] => 12367596.291
                    [type] => fiat
                )

            [ron] => stdClass Object
                (
                    [name] => Romanian Leu
                    [unit] => lei
                    [value] => 458999.722
                    [type] => fiat
                )

            [dop] => stdClass Object
                (
                    [name] => Dominican Peso
                    [unit] => RD$
                    [value] => 5926957.754
                    [type] => fiat
                )

            [crc] => stdClass Object
                (
                    [name] => Costa Rican Colón
                    [unit] => ₡
                    [value] => 48371856.558
                    [type] => fiat
                )

            [hnl] => stdClass Object
                (
                    [name] => Honduran Lempira
                    [unit] => L
                    [value] => 2436589.865
                    [type] => fiat
                )

            [zmw] => stdClass Object
                (
                    [name] => Zambian Kwacha
                    [unit] => ZK
                    [value] => 2673570.732
                    [type] => fiat
                )

            [svc] => stdClass Object
                (
                    [name] => Salvadoran Colón
                    [unit] => ₡
                    [value] => 836194.931
                    [type] => fiat
                )

            [bam] => stdClass Object
                (
                    [name] => Bosnia and Herzegovina Convertible Mark
                    [unit] => KM
                    [value] => 180616.817
                    [type] => fiat
                )

            [pen] => stdClass Object
                (
                    [name] => Peruvian Sol
                    [unit] => S/
                    [value] => 354656.391
                    [type] => fiat
                )

            [gtq] => stdClass Object
                (
                    [name] => Guatemalan Quetzal
                    [unit] => Q
                    [value] => 737801.363
                    [type] => fiat
                )

            [lbp] => stdClass Object
                (
                    [name] => Lebanese Pound
                    [unit] => ل.ل
                    [value] => 8558575491.851
                    [type] => fiat
                )

            [amd] => stdClass Object
                (
                    [name] => Armenian Dram
                    [unit] => ֏
                    [value] => 38198021.527
                    [type] => fiat
                )

        )

)