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@ 2018-10-10T00:45:18Z

<?php

echo number_format(23.77499999999997, 2) . \PHP_EOL; //returns 23.78
echo number_format(2.77499999999997, 2); //returns 2.77

Output
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number_format: documentation ( source)

preferences:dark modelive previewkey bindings

25.32 ms | 404 KiB | 5 Q