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<?php $x = 10; $k1 = 1.5; $k2 = '1,5'; print ($x * $k1) . PHP_EOL; print ($x * $k2) . PHP_EOL;
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
15 Warning: A non-numeric value encountered in /in/re9qK on line 9 10
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
15 Notice: A non well formed numeric value encountered in /in/re9qK on line 9 10
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.3.32 - 7.3.33
15 10

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228.25 ms | 402 KiB | 330 Q