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run code in 300+ PHP versions simultaneously
<?php $x = 9007199254740992.0; echo ($x + 0)."\n"; echo ($x + 1)."\n"; echo ($x + 2)."\n"; echo ($x + 3)."\n";
Output for git.master, git.master_jit, rfc.property-hooks
9.007199254741E+15 9.007199254741E+15 9.007199254741E+15 9.007199254741E+15

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