3v4l.org

run code in 300+ PHP versions simultaneously
<?php $num = 3; var_dump($num-- ); var_dump($num);

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)
8.3.40.0090.00618.72
8.3.30.0040.01120.25
8.3.20.0000.00720.34
8.3.10.0040.00421.92
8.3.00.0040.00422.39
8.2.170.0120.00322.96
8.2.160.0180.00022.16
8.2.150.0060.00324.18
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0040.00420.66
8.2.110.0000.01022.08
8.2.100.0110.00717.82
8.2.90.0000.00817.50
8.2.80.0050.00317.97
8.2.70.0030.00617.80
8.2.60.0100.00017.91
8.2.50.0000.00718.10
8.2.40.0080.00020.60
8.2.30.0000.00719.49
8.2.20.0000.00717.60
8.2.10.0070.00017.50
8.2.00.0040.00417.68
8.1.270.0080.00023.99
8.1.260.0050.00226.35
8.1.250.0000.00728.09
8.1.240.0100.00022.29
8.1.230.0060.00619.09
8.1.220.0020.00517.74
8.1.210.0030.00518.77
8.1.200.0030.00617.23
8.1.190.0030.00616.98
8.1.180.0040.00418.10
8.1.170.0080.00018.59
8.1.160.0000.00718.75
8.1.150.0000.00718.48
8.1.140.0040.00417.38
8.1.130.0030.00317.87
8.1.120.0000.00817.30
8.1.110.0020.00517.43
8.1.100.0000.00817.35
8.1.90.0050.00217.39
8.1.80.0000.00717.39
8.1.70.0040.00417.31
8.1.60.0080.00017.50
8.1.50.0030.00517.46
8.1.40.0000.00717.49
8.1.30.0050.00317.45
8.1.20.0050.00317.54
8.1.10.0040.00417.46
8.1.00.0050.00517.34
8.0.300.0000.00819.65
8.0.290.0080.00016.63
8.0.280.0000.00718.39
8.0.270.0030.00317.07
8.0.260.0000.00816.67
8.0.250.0030.00316.95
8.0.240.0040.00416.83
8.0.230.0030.00316.88
8.0.220.0030.00316.72
8.0.210.0030.00316.71
8.0.200.0000.00716.78
8.0.190.0050.00216.77
8.0.180.0060.00316.86
8.0.170.0000.00816.71
8.0.160.0030.00316.80
8.0.150.0070.00016.75
8.0.140.0070.00016.78
8.0.130.0050.00013.25
8.0.120.0040.00416.82
8.0.110.0070.00016.82
8.0.100.0000.00716.76
8.0.90.0070.00016.89
8.0.80.0070.00716.84
8.0.70.0000.00716.70
8.0.60.0000.00716.83
8.0.50.0070.00016.64
8.0.30.0120.00616.98
8.0.20.0100.00917.40
8.0.10.0000.00816.82
8.0.00.0050.01216.52
7.4.330.0000.00515.00
7.4.320.0000.00616.52
7.4.300.0030.00316.45
7.4.290.0000.00716.54
7.4.280.0030.00316.43
7.4.270.0030.00316.46
7.4.260.0000.00513.14
7.4.250.0000.00716.31
7.4.240.0030.00416.40
7.4.230.0070.00016.49
7.4.220.0090.00916.54
7.4.210.0040.01116.50
7.4.200.0050.00316.52
7.4.190.0000.00716.50
7.4.160.0090.00616.40
7.4.150.0080.00817.40
7.4.140.0090.00917.86
7.4.130.0110.01016.37
7.4.120.0100.00816.47
7.4.110.0180.00316.49
7.4.100.0070.01016.28
7.4.90.0100.01016.40
7.4.80.0120.00619.39
7.4.70.0070.01016.32
7.4.60.0000.01616.20
7.4.50.0000.00616.18
7.4.40.0060.00622.77
7.4.30.0040.01316.54
7.4.00.0030.01314.84
7.3.330.0020.00213.06
7.3.320.0060.00013.04
7.3.310.0000.00716.29
7.3.300.0030.00316.18
7.3.290.0100.00316.20
7.3.280.0120.00616.15
7.3.270.0090.00617.40
7.3.260.0140.00616.48
7.3.250.0110.00616.22
7.3.240.0080.00816.22
7.3.230.0140.00316.39
7.3.210.0080.01716.18
7.3.200.0100.00719.39
7.3.190.0030.01716.16
7.3.180.0100.00616.38
7.3.170.0110.00516.37
7.3.160.0030.01216.09
7.3.120.0030.01314.68
7.2.330.0100.00716.55
7.2.320.0140.00316.51
7.2.310.0150.00616.57
7.2.300.0070.01016.32
7.2.290.0130.00316.50
7.2.60.0100.00316.70
7.2.00.0040.01219.17
7.1.200.0040.00815.79
7.1.100.0060.00618.30
7.1.70.0040.00416.83
7.1.60.0100.01419.32
7.1.50.0090.01217.07
7.1.00.0030.07022.29
7.0.200.0030.00616.63
7.0.140.0030.07322.11
7.0.100.0000.07319.93
7.0.90.0200.05719.93
7.0.80.0100.06320.01
7.0.70.0230.07019.97
7.0.60.0230.03320.06
7.0.50.0230.07720.38
7.0.40.0130.04720.18
7.0.30.0070.05020.01
7.0.20.0170.07720.05
7.0.10.0130.07020.13
7.0.00.0170.07320.06
5.6.280.0100.06320.88
5.6.250.0200.06720.75
5.6.240.0130.07320.56
5.6.230.0070.06020.59
5.6.220.0070.04720.70
5.6.210.0030.06320.55
5.6.200.0100.08021.05
5.6.190.0100.06020.98
5.6.180.0070.08321.08
5.6.170.0030.09320.93
5.6.160.0100.07321.02
5.6.150.0100.07721.02
5.6.140.0030.06321.00
5.6.130.0170.07321.09
5.6.120.0130.07720.93
5.6.110.0030.07321.03
5.6.100.0070.04021.06
5.6.90.0000.08721.10
5.6.80.0100.07320.49
5.6.70.0070.04020.55
5.6.60.0070.04320.43
5.6.50.0100.07020.55
5.6.40.0030.05020.49
5.6.30.0130.06720.43
5.6.20.0000.05020.30
5.6.10.0100.07020.37
5.6.00.0070.07320.27
5.5.380.0030.05320.56
5.5.370.0170.05320.48
5.5.360.0200.06720.39
5.5.350.0070.07320.47
5.5.340.0100.07720.73
5.5.330.0100.08020.88
5.5.320.0170.06020.91
5.5.310.0030.08320.88
5.5.300.0100.07720.79
5.5.290.0000.09020.79
5.5.280.0100.06020.85
5.5.270.0070.08020.88
5.5.260.0000.07720.85
5.5.250.0170.07720.70
5.5.240.0070.05720.25
5.5.230.0100.07320.01
5.5.220.0100.04020.17
5.5.210.0130.05720.26
5.5.200.0130.05720.26
5.5.190.0130.07320.21
5.5.180.0130.06720.23
5.5.160.0130.06320.23
5.5.150.0170.05320.26
5.5.140.0000.04320.27
5.5.130.0100.06720.13
5.5.120.0030.07320.26
5.5.110.0000.07020.25
5.5.100.0070.06020.07
5.5.90.0100.07020.14
5.5.80.0070.03720.00
5.5.70.0100.08319.99
5.5.60.0200.06720.15
5.5.50.0000.05320.14
5.5.40.0100.06720.13
5.5.30.0100.07720.07
5.5.20.0100.07019.99
5.5.10.0070.07020.06
5.5.00.0100.04320.06
5.4.450.0030.06719.14
5.4.440.0170.06319.37
5.4.430.0000.05719.46
5.4.420.0100.04719.14
5.4.410.0100.06319.31
5.4.400.0070.07319.13
5.4.390.0100.04319.24
5.4.380.0000.04718.79
5.4.370.0130.04019.07
5.4.360.0030.07318.85
5.4.350.0100.03718.81
5.4.340.0070.06719.23
5.4.320.0070.05318.81
5.4.310.0100.07319.13
5.4.300.0070.04319.14
5.4.290.0100.06319.03
5.4.280.0100.05319.04
5.4.270.0100.07019.06
5.4.260.0070.03719.05
5.4.250.0070.06719.04
5.4.240.0070.05019.04
5.4.230.0070.04319.05
5.4.220.0130.06718.78
5.4.210.0070.04319.14
5.4.200.0030.07019.14
5.4.190.0170.03719.11
5.4.180.0100.07319.12
5.4.170.0100.06718.90
5.4.160.0030.04719.04
5.4.150.0130.06719.14
5.4.140.0030.07316.30
5.4.130.0030.07016.37
5.4.120.0130.06016.36
5.4.110.0070.06016.41
5.4.100.0130.05716.42
5.4.90.0100.05316.23
5.4.80.0070.03316.24
5.4.70.0170.06016.39
5.4.60.0100.07316.42
5.4.50.0030.06316.46
5.4.40.0130.06316.37
5.4.30.0100.03716.25
5.4.20.0100.06716.18
5.4.10.0030.07716.27
5.4.00.0070.07315.72
5.3.290.0130.07314.52
5.3.280.0130.03314.57
5.3.270.0000.05714.44
5.3.260.0070.05314.58
5.3.250.0100.06014.55
5.3.240.0100.07014.60
5.3.230.0070.07014.58
5.3.220.0070.07014.53
5.3.210.0000.09314.42
5.3.200.0070.07714.55
5.3.190.0070.04314.57
5.3.180.0030.04314.55
5.3.170.0130.03714.49
5.3.160.0100.04314.40
5.3.150.0100.07014.55
5.3.140.0070.07014.38
5.3.130.0030.08014.54
5.3.120.0100.06314.53
5.3.110.0100.07314.52
5.3.100.0170.03314.02
5.3.90.0070.06713.88
5.3.80.0030.06313.98
5.3.70.0030.04014.00
5.3.60.0000.07714.00
5.3.50.0100.06313.85
5.3.40.0170.04313.85
5.3.30.0100.06313.78
5.3.20.0070.06713.65
5.3.10.0000.04013.66
5.3.00.0030.07313.59
5.2.170.0030.05710.98
5.2.160.0070.03011.13
5.2.150.0030.05711.19
5.2.140.0030.05011.12
5.2.130.0000.04010.94
5.2.120.0030.05010.94
5.2.110.0030.03310.96
5.2.100.0070.05011.09
5.2.90.0070.02711.17
5.2.80.0030.05711.08
5.2.70.0070.05311.09
5.2.60.0030.04711.11
5.2.50.0000.03710.96
5.2.40.0030.04310.99
5.2.30.0000.06710.95
5.2.20.0000.06710.95
5.2.10.0070.05310.88
5.2.00.0000.06310.76
5.1.60.0070.0479.97
5.1.50.0070.05010.07
5.1.40.0070.04710.04
5.1.30.0000.03010.25
5.1.20.0000.05310.21
5.1.10.0030.05710.11
5.1.00.0070.02710.14
5.0.50.0030.0379.43
5.0.40.0070.0379.43
5.0.30.0000.0379.43
5.0.20.0030.0409.43
5.0.10.0030.0409.43
5.0.00.0070.0539.43
4.4.90.0000.0179.43
4.4.80.0030.0239.43
4.4.70.0070.0109.43
4.4.60.0070.0279.43
4.4.50.0070.0209.43
4.4.40.0030.0409.43
4.4.30.0100.0139.43
4.4.20.0000.0339.43
4.4.10.0030.0379.43
4.4.00.0070.0539.43
4.3.110.0000.0279.43
4.3.100.0000.0309.43
4.3.90.0000.0309.43
4.3.80.0000.0539.43
4.3.70.0070.0239.43
4.3.60.0070.0309.43
4.3.50.0000.0379.43
4.3.40.0000.0409.43
4.3.30.0030.0379.43
4.3.20.0030.0309.43
4.3.10.0070.0309.43
4.3.00.0000.0309.43

preferences:
38.23 ms | 400 KiB | 5 Q