3v4l.org

run code in 300+ PHP versions simultaneously
<?php $n = 0 - 0.0000000000000001; var_dump($n); // float(-1.0E-33) var_dump(round($n)); // float(-0) -- huh?! var_dump(abs($n)); // float(1.0E-33) var_dump(abs(round($n))); // float(0) var_dump(round($n) == 0); // bool(true) var_dump(round($n) === 0); // bool(false)

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.60.0090.00616.86
8.3.50.0070.00918.32
8.3.40.0060.01019.02
8.3.30.0070.00718.84
8.3.20.0080.00018.94
8.3.10.0040.00418.95
8.3.00.0060.00319.51
8.2.180.0060.01218.41
8.2.170.0100.01019.08
8.2.160.0070.01422.96
8.2.150.0000.00825.66
8.2.140.0030.00524.66
8.2.130.0000.00826.16
8.2.120.0080.00021.37
8.2.110.0060.00322.40
8.2.100.0080.00417.97
8.2.90.0040.00419.30
8.2.80.0080.00018.05
8.2.70.0050.00517.75
8.2.60.0040.00418.03
8.2.50.0030.00518.07
8.2.40.0030.00618.41
8.2.30.0040.00420.02
8.2.20.0030.00717.64
8.2.10.0030.00417.69
8.2.00.0100.00017.73
8.1.280.0130.00725.92
8.1.270.0060.00323.99
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0190.00022.59
8.1.230.0060.00620.97
8.1.220.0040.00418.77
8.1.210.0050.00319.10
8.1.200.0060.00317.47
8.1.190.0040.00417.53
8.1.180.0040.00418.10
8.1.170.0000.00818.67
8.1.160.0040.00418.95
8.1.150.0040.00418.76
8.1.140.0080.00017.73
8.1.130.0040.00417.64
8.1.120.0040.00417.54
8.1.110.0000.00817.63
8.1.100.0070.00017.61
8.1.90.0070.00017.64
8.1.80.0000.00717.64
8.1.70.0030.00517.64
8.1.60.0040.00417.79
8.1.50.0000.00717.67
8.1.40.0040.00417.75
8.1.30.0000.00817.89
8.1.20.0050.00317.77
8.1.10.0050.00217.62
8.1.00.0000.00717.52
8.0.300.0040.00420.15
8.0.290.0050.00316.75
8.0.280.0000.00718.49
8.0.270.0000.00716.95
8.0.260.0050.00316.95
8.0.250.0040.00416.96
8.0.240.0000.00717.07
8.0.230.0000.00817.05
8.0.220.0030.00316.98
8.0.210.0030.00517.01
8.0.200.0000.00617.13
8.0.190.0030.00317.05
8.0.180.0100.00016.97
8.0.170.0040.00417.05
8.0.160.0040.00417.16
8.0.150.0040.00417.00
8.0.140.0000.00716.96
8.0.130.0030.00313.53
8.0.120.0000.01016.93
8.0.110.0080.00016.90
8.0.100.0040.00416.91
8.0.90.0040.00417.09
8.0.80.0070.00717.09
8.0.70.0000.00716.90
8.0.60.0030.00516.97
8.0.50.0030.00616.88
8.0.30.0120.00617.18
8.0.20.0140.00517.20
8.0.10.0040.00417.23
8.0.00.0110.01217.01
7.4.330.0050.00013.18
7.4.320.0000.00616.70
7.4.300.0000.00616.68
7.4.290.0030.00716.66
7.4.280.0040.00416.84
7.4.270.0040.00416.77
7.4.260.0000.00613.58
7.4.250.0000.00816.74
7.4.240.0030.00316.71
7.4.230.0000.00716.90
7.4.220.0190.00316.66
7.4.210.0120.00316.61
7.4.200.0030.00316.61
7.4.190.0040.00416.85
7.4.160.0060.00916.61
7.4.150.0120.00816.48
7.4.140.0070.01117.86
7.4.130.0090.01216.74
7.4.120.0090.01216.67
7.4.110.0090.01216.65
7.4.100.0110.00616.71
7.4.90.0090.00916.54
7.4.80.0140.00319.39
7.4.70.0110.00716.79
7.4.60.0120.00616.66
7.4.50.0040.00416.50
7.4.40.0060.00616.52
7.4.30.0030.01316.77
7.4.00.0060.00915.34
7.3.330.0000.00613.24
7.3.320.0000.00513.20
7.3.310.0030.00316.45
7.3.300.0000.00716.17
7.3.290.0090.01016.42
7.3.280.0090.00616.48
7.3.270.0060.01116.60
7.3.260.0090.01116.39
7.3.240.0100.00716.72
7.3.230.0100.00716.57
7.3.210.0100.00716.49
7.3.200.0110.00716.49
7.3.190.0140.00616.43
7.3.180.0030.01316.48
7.3.170.0090.00916.48
7.3.160.0080.00816.33
7.3.120.0090.00915.11
7.3.110.0110.00415.04
7.3.100.0000.01515.20
7.3.90.0060.00915.07
7.3.80.0110.00315.08
7.3.70.0030.01315.07
7.3.60.0070.00715.03
7.3.50.0060.00614.95
7.3.40.0070.01015.06
7.3.30.0080.00815.19
7.3.20.0040.01216.82
7.3.10.0030.01416.89
7.3.00.0090.00616.87
7.2.330.0100.00716.68
7.2.320.0050.01516.54
7.2.310.0090.00916.79
7.2.300.0070.01016.73
7.2.290.0110.01116.80
7.2.250.0030.01715.36
7.2.240.0070.01015.41
7.2.230.0000.01315.35
7.2.220.0100.00715.23
7.2.210.0060.01214.98
7.2.200.0000.01815.45
7.2.190.0000.01815.15
7.2.180.0070.00715.13
7.2.170.0040.01215.27
7.2.60.0060.01217.23
7.2.00.0040.01419.42
7.1.330.0060.00616.09
7.1.320.0030.01216.13
7.1.310.0080.00415.93
7.1.300.0090.00315.82
7.1.290.0030.01016.11
7.1.280.0000.01116.02
7.1.270.0080.00816.03
7.1.260.0100.00716.03
7.1.200.0160.00516.10
7.1.100.0190.01118.43
7.1.70.0080.00617.48
7.1.60.0140.01019.25
7.1.50.0030.01317.14
7.1.00.0000.07722.58
7.0.200.0060.00616.78
7.0.140.0000.07322.20
7.0.120.0070.06322.28
7.0.60.0270.05320.31
7.0.50.0070.07718.18
7.0.40.0230.07020.43
7.0.30.0330.05320.38
7.0.20.0330.04320.41
7.0.10.0130.04320.25
7.0.00.0070.07320.55
5.6.280.0100.06721.27
5.6.210.0030.04020.99
5.6.200.0070.08318.49
5.6.190.0030.06020.87
5.6.180.0300.05320.90
5.6.170.0370.06720.62
5.6.160.0070.03720.62
5.6.150.0100.05718.47
5.6.140.0000.04318.47
5.6.130.0030.04018.49
5.6.120.0070.07721.29
5.6.110.0070.04021.18
5.6.100.0070.08321.29
5.6.90.0100.08321.16
5.6.80.0070.08020.66
5.5.350.0270.07320.69
5.5.340.0000.07718.16
5.5.330.0030.06020.59
5.5.320.0230.08020.55
5.5.310.0170.04020.68
5.5.300.0070.06718.14
5.5.290.0070.08018.12
5.5.280.0070.07321.13
5.5.270.0130.05321.15
5.5.260.0070.08720.92
5.5.250.0030.07320.84
5.5.240.0230.07020.54
5.4.450.0630.06019.58
5.4.440.0570.05719.77
5.4.430.0400.05019.88
5.4.420.0370.05319.81
5.4.410.0300.05019.45
5.4.400.0500.04319.36
5.4.390.0430.04019.29
5.4.380.0430.04019.47
5.4.370.0500.04719.56
5.4.360.0500.04019.04
5.4.350.0600.05719.56
5.4.340.0430.04019.15
5.4.320.0400.04719.25
5.4.310.0500.06719.25
5.4.300.0570.06319.10
5.4.290.0530.03019.26
5.4.280.0600.06019.44
5.4.270.0530.06019.10
5.4.260.0500.03719.25
5.4.250.0530.06019.03
5.4.240.0500.07319.41
5.4.230.0570.06319.46
5.4.220.0530.05719.25
5.4.210.0500.05319.48
5.4.200.0630.05019.48
5.4.190.0500.04319.48
5.4.180.0600.05719.16
5.4.170.0500.04719.12
5.4.160.0470.03719.32
5.4.150.0430.04019.44
5.4.140.0430.03716.53
5.4.130.0470.04016.65
5.4.120.0600.04016.55
5.4.110.0470.05316.71
5.4.100.0600.04316.62
5.4.90.0530.04316.74
5.4.80.0470.03716.61
5.4.70.0430.04016.51
5.4.60.0430.04016.71
5.4.50.0530.04716.69
5.4.40.0530.03316.65
5.4.30.0530.05716.65
5.4.20.0500.05316.68
5.4.10.0730.04016.45
5.4.00.0500.03316.14
5.3.290.0470.04714.88
5.3.280.0470.03714.79
5.3.270.0500.05714.82
5.3.260.0430.05014.77
5.3.250.0630.05014.73
5.3.240.0430.03714.88
5.3.230.0570.06314.78
5.3.220.0470.03714.78
5.3.210.0570.05714.70
5.3.200.0530.04314.65
5.3.190.0530.04714.77
5.3.180.0500.05314.69
5.3.170.0470.04714.70
5.3.160.0570.06314.74
5.3.150.0530.03714.71
5.3.140.0570.03714.68
5.3.130.0570.04714.67
5.3.120.0430.04314.74
5.3.110.0670.05014.75
5.3.100.0470.07314.33
5.3.90.0630.05714.19
5.3.80.0370.04314.23
5.3.70.0600.05014.23
5.3.60.0670.04314.09
5.3.50.0500.04714.10
5.3.40.0470.04714.14
5.3.30.0330.03714.08
5.3.20.0400.04013.85
5.3.10.0330.03313.93
5.3.00.0370.03313.80
5.2.170.0300.03712.98
5.2.160.0430.04312.98
5.2.150.0300.03312.98
5.2.140.0300.03312.98
5.2.130.0270.03312.98
5.2.120.0300.03012.98
5.2.110.0370.02312.98
5.2.100.0270.03012.98
5.2.90.0300.03012.98
5.2.80.0230.03712.98
5.2.70.0370.02712.98
5.2.60.0270.03312.98
5.2.50.0300.03012.98
5.2.40.0230.03012.98
5.2.30.0270.03312.98
5.2.20.0200.03012.98
5.2.10.0330.02012.98
5.2.00.0170.03312.98
5.1.60.0170.03012.98
5.1.50.0200.02712.98
5.1.40.0230.02312.98
5.1.30.0300.02312.98
5.1.20.0270.02312.98
5.1.10.0200.02312.98
5.1.00.0170.02712.98
5.0.50.0130.01712.98
5.0.40.0070.01712.98
5.0.30.0070.03012.98
5.0.20.0070.02012.98
5.0.10.0030.02012.98
5.0.00.0030.03312.98
4.4.90.0100.01712.98
4.4.80.0170.01312.98
4.4.70.0070.02012.98
4.4.60.0100.01712.98
4.4.50.0130.01312.98
4.4.40.0170.02012.98
4.4.30.0130.01312.98
4.4.20.0070.01712.98
4.4.10.0100.01312.98
4.4.00.0130.02712.98
4.3.110.0030.01712.98
4.3.100.0100.01312.98
4.3.90.0070.01312.98
4.3.80.0070.02312.98
4.3.70.0030.01712.98
4.3.60.0070.01712.98
4.3.50.0030.01712.98
4.3.40.0070.02312.98
4.3.30.0030.01712.98
4.3.20.0070.01312.98
4.3.10.0030.01312.98
4.3.00.0030.01712.98

preferences:
46.1 ms | 401 KiB | 5 Q