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<?php /** * @see https://community.developer.authorize.net/t5/The-Authorize-Net-Developer-Blog/Precision-Math-with-PHP/ba-p/8368 */ var_dump(ceil((0.2 + 1.4) * 3)); // Should be 16. But it's 15! // Using BC Math var_dump(bcadd('0.2', '1.4', 2) * 10); // It's 16 like we would expect it to be.
Output for 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.32, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
float(5) float(16)
Output for 7.3.32 - 7.3.33, 7.4.33, 8.0.13
float(5) Fatal error: Uncaught Error: Call to undefined function bcadd() in /in/pUiVG:10 Stack trace: #0 {main} thrown in /in/pUiVG on line 10
Process exited with code 255.
Output for 5.5.0 - 5.5.38
float(5) Fatal error: Call to undefined function bcadd() in /in/pUiVG on line 10
Process exited with code 255.
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193.15 ms | 401 KiB | 295 Q