Fetch crypto exchanges with coins they offer from coinmarketcap.com (Don't use for live sites, this is experimental and for practise)

cmc.php

/**
 * Title: coinmarketcap exchanges
 * Author: Mattias Ghodsian
 * Description: Fetch Coin exchanges with coins they offer (Don't use for live sites, this is experimental and for practise)
 * Site: https://coinmarketcap.com/exchanges/volume/24-hour/all/
 * Donate a cup of coffee: https://www.buymeacoffee.com/mattiasghodsian
 * Donate Eth: 	0xBBB96204E45D11C9799c6B12E6eE6F0d4A071Ef5
 **/
function getExchangeData($exchanges, $coins){
	$data 			= ['meta' => ['source' => 'coinmarketcap.com', 'datatype' => 'exchanges', 'interval' => '24h', 'version' => 'alpha (practise)', 'created' => '9/05/2018', 'developer' => 'Mattias Ghodsian'] ];
	$url 			= 'https://coinmarketcap.com/exchanges/volume/24-hour/all/';
	libxml_use_internal_errors(true); 
	$doc 			= new DOMDocument(); 
	$doc->loadHTMLFile($url);
	$xpath 			= new DOMXpath($doc);
	$elements 		= $xpath->query("//table");

	if (!is_null($elements)) {
		foreach ($elements as $key => $element) {

			$sort = preg_replace('/[0-9]+. /', '#split#', $element->nodeValue); 		// make it easy to split the string
			$sort = str_replace('#CurrencyPairVolume (24h)PriceVolume (%)', '', $sort); // remove unwanted data
			$sort = explode('#split#', $sort); 											// split the data with our temp keyword
			unset($sort[0]); 															// remove unwanted data
			
			foreach ($sort as $key => $row) {	
				$currencieList 	= [];
				$row 			= str_replace(PHP_EOL, ' ', $row); 						// replace \n with space
				$splitRow 		= explode(' ', $row); 									// split data to array
				$row 			= str_replace([$splitRow[0], ' 1 '], '', $row); 		// remove exchange name
				$currencies 	= explode('% ', $row); 									// split currencies
				unset( $currencies[array_pop($currencies)] ); 							// remove last array

				foreach ($currencies as $currency) {
					$currency 		= preg_replace('/^([0-9]* \w+ )?(.*)$/', '$2', $currency); // remove number and space start of string
					$currency 		= explode(' ', $currency);
					$name 	  		= strtolower($currency[0]);
					$currencieList[]  = $currency;
				}

				$data[strtolower( $splitRow[0] )] = [
					'name' => $splitRow[0],
					'currencies' => $currencieList
				];

			}
		}
		return $data;
	}else{
		return false;
	}
}