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run code in 200+ PHP versions simultaneously
<?php printf("%e", 100.256); echo "\n"; printf("%e", 10785475724624520.25648);
based on rb16X
Output for 5.2.1 - 7.4.0
1.002560e+2 1.078548e+16
Output for 4.3.0 - 5.2.0
1.00256e+2 1.07855e+16