Fixer.io vs. ExchangeRate.host - Available Currenc

<?php

// 2021-03-08

// Fixer.io

$fixer = json_decode('{"success":true,"timestamp":1615231266,"base":"EUR","date":"2021-03-08","rates":{"AED":4.354847,"AFN":91.99815,"ALL":123.540712,"AMD":622.9708,"ANG":2.128964,"AOA":733.037011,"ARS":107.3771,"AUD":1.547314,"AWG":2.134029,"AZN":2.028573,"BAM":1.954695,"BBD":2.394809,"BDT":100.572902,"BGN":1.954767,"BHD":0.447152,"BIF":2327.869824,"BMD":1.185572,"BND":1.599258,"BOB":8.189845,"BRL":6.845525,"BSD":1.186111,"BTC":2.3253035e-5,"BTN":86.586123,"BWP":13.304275,"BYN":3.092704,"BYR":23237.203237,"BZD":2.390812,"CAD":1.500667,"CDF":2368.771727,"CHF":1.108948,"CLF":0.03164,"CLP":873.054156,"CNY":7.737163,"COP":4275.171167,"CRC":726.218319,"CUC":1.185572,"CUP":31.417647,"CVE":110.673494,"CZK":26.405465,"DJF":210.700182,"DKK":7.436746,"DOP":68.585038,"DZD":157.915233,"EGP":18.651769,"ERN":17.783803,"ETB":47.661162,"EUR":1,"FJD":2.418329,"FKP":0.857176,"GBP":0.857127,"GEL":3.94792,"GGP":0.857176,"GHS":6.799255,"GIP":0.857176,"GMD":60.879275,"GNF":11944.633637,"GTQ":9.153485,"GYD":247.916047,"HKD":9.211832,"HNL":28.75013,"HRK":7.579593,"HTG":89.370107,"HUF":367.782059,"IDR":17030.105109,"ILS":3.957237,"IMP":0.857176,"INR":86.971458,"IQD":1732.712884,"IRR":49918.491632,"ISK":151.894973,"JEP":0.857176,"JMD":177.48994,"JOD":0.840522,"JPY":129.096652,"KES":130.060906,"KGS":100.535619,"KHR":4813.420657,"KMF":492.308474,"KPW":1067.048158,"KRW":1353.934116,"KWD":0.359287,"KYD":0.988426,"KZT":498.140753,"LAK":11107.620777,"LBP":1807.398498,"LKR":232.766543,"LRD":206.172218,"LSL":18.447449,"LTL":3.500684,"LVL":0.71714,"LYD":5.340976,"MAD":10.722902,"MDL":20.815513,"MGA":4457.749382,"MKD":61.507691,"MMK":1672.360738,"MNT":3372.514099,"MOP":9.490549,"MRO":423.248855,"MUR":47.364071,"MVR":18.269411,"MWK":924.745909,"MXN":25.451578,"MYR":4.869737,"MZN":88.360381,"NAD":18.447289,"NGN":450.516648,"NIO":41.609107,"NOK":10.098307,"NPR":138.537558,"NZD":1.662047,"OMR":0.456403,"PAB":1.186111,"PEN":4.391954,"PGK":4.185429,"PHP":57.795765,"PKR":186.342232,"PLN":4.592547,"PYG":7887.919852,"QAR":4.316653,"RON":4.88704,"RSD":117.511766,"RUB":88.290675,"RWF":1160.67459,"SAR":4.447993,"SBD":9.464276,"SCR":25.139853,"SDG":449.921261,"SEK":10.16266,"SGD":1.600604,"SHP":0.857176,"SLL":12092.829806,"SOS":691.79402,"SRD":16.78065,"STD":24045.92191,"SVC":10.378973,"SYP":607.932325,"SZL":18.447197,"THB":36.575111,"TJS":13.515252,"TMT":4.149501,"TND":3.26803,"TOP":2.715547,"TRY":9.179761,"TTD":8.051025,"TWD":33.505437,"TZS":2749.340318,"UAH":32.934277,"UGX":4343.378002,"USD":1.185572,"UYU":52.091753,"UZS":12442.573716,"VEF":11.840895,"VND":27321.135887,"VUV":129.17695,"WST":2.983271,"XAF":655.559758,"XAG":0.047077,"XAU":0.000705,"XCD":3.204066,"XDR":0.830097,"XOF":654.434969,"XPF":119.920147,"YER":296.866592,"ZAR":18.410801,"ZMK":10671.561643,"ZMW":26.0046,"ZWL":381.754446}}', true);

// ExchangeRate.host

$erh = json_decode('{"motd":{"msg":"If you or your company use this project or like what we doing, please consider backing us so we can continue maintaining and evolving this project.","url":"https://exchangerate.host/#/donate"},"success":true,"base":"EUR","date":"2021-03-08","rates":{"AED":4.374218,"AFN":92.21223,"ALL":123.260433,"AMD":623.302941,"ANG":2.138338,"AOA":743.366978,"ARS":107.728872,"AUD":1.546453,"AWG":2.143524,"AZN":2.025398,"BAM":1.952676,"BBD":2.381693,"BDT":101.012569,"BGN":1.95512,"BHD":0.448781,"BIF":2317.560742,"BMD":1.190847,"BND":1.597746,"BOB":8.213734,"BRL":6.779371,"BSD":1.190847,"BTC":0.000024,"BTN":86.724938,"BWP":13.273007,"BYN":3.109065,"BZD":2.401212,"CAD":1.506943,"CDF":2356.906915,"CHF":1.109447,"CLF":0.031652,"CLP":873.367975,"CNH":7.767956,"CNY":7.750983,"COP":4348.952886,"CRC":729.561972,"CUC":1.190847,"CUP":30.664302,"CVE":110.74874,"CZK":26.337598,"DJF":212.076565,"DKK":7.436169,"DOP":68.866776,"DZD":158.441396,"EGP":18.705581,"ERN":17.862267,"ETB":48.211834,"EUR":1,"FJD":2.422004,"FKP":0.861211,"GBP":0.861211,"GEL":3.959565,"GGP":0.861211,"GHS":6.837856,"GIP":0.861211,"GMD":61.209519,"GNF":12075.280699,"GTQ":9.181571,"GYD":249.227522,"HKD":9.249032,"HNL":28.68567,"HRK":7.560289,"HTG":92.660508,"HUF":367.014827,"IDR":17062.745533,"ILS":3.969425,"IMP":0.861211,"INR":87.14086,"IQD":1738.041376,"IRR":50140.598867,"ISK":152.904712,"JEP":0.861211,"JMD":178.140243,"JOD":0.84431,"JPY":129.025855,"KES":130.516795,"KGS":100.782737,"KHR":4848.421325,"KMF":492.236484,"KPW":1071.761999,"KRW":1348.822982,"KWD":0.360766,"KYD":0.992693,"KZT":500.31023,"LAK":11154.813952,"LBP":1801.179225,"LKR":233.485246,"LRD":207.11799,"LSL":18.219896,"LYD":5.329969,"MAD":10.719787,"MDL":20.966049,"MGA":4490.912819,"MKD":61.515647,"MMK":1679.664383,"MNT":3398.182977,"MOP":9.525715,"MRO":425.132055,"MRU":42.78989,"MUR":47.75295,"MVR":18.339039,"MWK":930.736893,"MXN":25.384468,"MYR":4.871158,"MZN":88.803817,"NAD":18.291405,"NGN":490.497469,"NIO":41.575373,"NOK":10.171617,"NPR":138.759899,"NZD":1.663286,"OMR":0.458196,"PAB":1.190847,"PEN":4.388612,"PGK":4.236393,"PHP":57.931871,"PKR":187.11583,"PLN":4.585232,"PYG":7942.761923,"QAR":4.40209,"RON":4.880447,"RSD":117.330499,"RUB":88.268532,"RWF":1183.506451,"SAR":4.467699,"SBD":9.545871,"SCR":25.238274,"SDG":452.521733,"SEK":10.16426,"SGD":1.60157,"SHP":0.861211,"SLL":12148.719918,"SOS":689.187439,"SRD":16.855244,"SSP":155.119687,"STD":24218.80476,"STN":24.710068,"SVC":10.42412,"SYP":610.587462,"SZL":18.230879,"THB":36.49945,"TJS":13.574376,"TMT":4.179872,"TND":3.266492,"TOP":2.719224,"TRY":8.974816,"TTD":8.086106,"TWD":33.433854,"TZS":2762.510414,"UAH":33.072146,"UGX":4357.666019,"USD":1.190847,"UYU":52.305751,"UZS":12446.158695,"VES":2238319.235377,"VND":27482.656834,"VUV":129.259234,"WST":2.994397,"XAF":655.957,"XAG":0.046463,"XAU":0.000697,"XCD":3.218323,"XDR":0.831591,"XOF":655.957,"XPD":0.000505,"XPF":119.331742,"XPT":0.001044,"YER":298.128541,"ZAR":18.293421,"ZMW":26.124098,"ZWL":383.452626}}', true);

$fRates = array_keys($fixer['rates']);

$eRates = array_keys($erh['rates']);

/**

* Currencies that Fixer supports, but ERH doesn't support.

*/

echo json_encode(array_diff($fRates, $eRates), JSON_PRETTY_PRINT);