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<?php echo print_r(0.1 + 0.2, true) . "\n"; echo "Old precision: " . ini_set("precision", -1) . "\n"; echo print_r(0.1 + 0.2, true) . "\n"; echo "Round with 14: " . print_r(round(0.1 + 0.2, 14), true);
Output for git.master, git.master_jit, rfc.property-hooks
0.3 Old precision: 14 0.30000000000000004 Round with 14: 0.3

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