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<?php declare(strict_types=1); $value = 1616497508.79562548484415745842262445584; var_dump( json_encode($value), number_format($value, 6, '.', ''), DateTimeImmutable::createFromFormat( 'U.u', json_encode($value) ), DateTimeImmutable::createFromFormat( 'U.u', number_format($value, 6, '.', '') ), );
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
string(18) "1616497508.7956254" string(17) "1616497508.795625" bool(false) object(DateTimeImmutable)#1 (3) { ["date"]=> string(26) "2021-03-23 11:05:08.795625" ["timezone_type"]=> int(1) ["timezone"]=> string(6) "+00:00" }
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 string(18) "1616497508.7956254" string(17) "1616497508.795625" bool(false) object(DateTimeImmutable)#1 (3) { ["date"]=> string(26) "2021-03-23 11:05:08.795625" ["timezone_type"]=> int(1) ["timezone"]=> string(6) "+00:00" }

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158.72 ms | 402 KiB | 153 Q