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<?php $number = 1346.21; var_dump('-1', round(1346.21, -1)); var_dump(round(1346.21, -1)); var_dump(round(1346.21, -2)); var_dump(round(1346.21, -3)); var_dump(round(1346.21, -4)); var_dump(round(1346.21, -100));
Output for 7.1.25 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
string(2) "-1" float(1350) float(1350) float(1300) float(1000) float(0) float(0)

preferences:
161.92 ms | 403 KiB | 184 Q