3v4l.org

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<?php $arr = array(7, NAN, 3,); sort($arr); var_dump($arr); var_dump(7 < 3);
Output for 7.1.10 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
array(3) { [0]=> float(NAN) [1]=> int(3) [2]=> int(7) } bool(false)
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.7
array(3) { [0]=> int(7) [1]=> float(NAN) [2]=> int(3) } bool(false)
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
array(3) { [0]=> int(3) [1]=> float(NAN) [2]=> int(7) } bool(false)

preferences:
156.22 ms | 401 KiB | 179 Q