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@ 2019-05-17T14:34:43Z

<?php

$myCoins = array('BTC' => 45, 'ETH' => 12);
$coinReader = implode(',', array_keys($myCoins));
echo $coinReader;

Output
Performance
VLD
References
Branches

implode: documentation ( source)
array_keys: documentation ( source)

preferences:dark modelive previewkey bindings

32.49 ms | 405 KiB | 5 Q