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@ 2017-07-07T10:40:55Z

<?php

echo ' ' . json_encode(round('1.123456789123456789', 10), JSON_NUMERIC_CHECK) . PHP_EOL;
echo json_encode('1.123456789123456789');

Output
Performance
VLD
References
Branches

round: documentation ( source)
json_encode: documentation ( source)

preferences:dark modelive preview

38.36 ms | 402 KiB | 5 Q