3v4l.org

run code in 300+ PHP versions simultaneously
<?php isset($x); $y=1; isset($y);

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)
8.3.40.0110.00418.42
8.3.30.0110.00418.45
8.3.20.0000.00818.44
8.3.10.0030.00618.60
8.3.00.0030.00519.26
8.2.170.0070.00722.96
8.2.160.0030.01218.83
8.2.150.0050.00324.18
8.2.140.0090.00024.66
8.2.130.0040.00426.16
8.2.120.0000.01319.07
8.2.110.0100.00020.90
8.2.100.0040.00817.59
8.2.90.0070.00419.34
8.2.80.0000.00819.25
8.2.70.0080.00017.38
8.2.60.0030.00717.68
8.2.50.0090.00018.07
8.2.40.0000.00818.09
8.2.30.0000.00817.98
8.2.20.0030.00517.57
8.2.10.0050.00217.48
8.2.00.0000.00817.58
8.1.270.0000.00824.66
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0080.00022.36
8.1.230.0040.00721.03
8.1.220.0080.00017.74
8.1.210.0000.00818.82
8.1.200.0100.00017.23
8.1.190.0060.00317.40
8.1.180.0040.00418.10
8.1.170.0030.00520.45
8.1.160.0030.00618.82
8.1.150.0040.00418.56
8.1.140.0040.00417.43
8.1.130.0070.00017.86
8.1.120.0040.00317.30
8.1.110.0000.00717.29
8.1.100.0070.00017.39
8.1.90.0030.00417.27
8.1.80.0050.00317.36
8.1.70.0000.00717.28
8.1.60.0050.00317.39
8.1.50.0000.00717.39
8.1.40.0040.00417.48
8.1.30.0000.00717.52
8.1.20.0070.00017.57
8.1.10.0040.00417.36
8.1.00.0040.00417.43
8.0.300.0040.00419.98
8.0.290.0040.00416.63
8.0.280.0000.00718.24
8.0.270.0030.00317.23
8.0.260.0000.00616.75
8.0.250.0040.00416.89
8.0.240.0000.00816.79
8.0.230.0070.00016.76
8.0.220.0000.00716.79
8.0.210.0000.00716.70
8.0.200.0000.00616.94
8.0.190.0000.00816.88
8.0.180.0070.00416.82
8.0.170.0040.00416.81
8.0.160.0000.00716.83
8.0.150.0030.00616.77
8.0.140.0070.00316.75
8.0.130.0030.00313.24
8.0.120.0000.00716.82
8.0.110.0000.00816.80
8.0.100.0080.00016.83
8.0.90.0040.00416.71
8.0.80.0070.00716.75
8.0.70.0000.00816.77
8.0.60.0000.00716.62
8.0.50.0040.00416.77
8.0.30.0090.00917.14
8.0.20.0140.00417.17
8.0.10.0000.00716.96
8.0.00.0090.01116.79
7.4.330.0000.00512.85
7.4.320.0060.00016.45
7.4.300.0060.00016.38
7.4.290.0070.00016.38
7.4.280.0030.00316.35
7.4.270.0040.00416.57
7.4.260.0000.00513.20
7.4.250.0050.00316.49
7.4.240.0030.00416.49
7.4.230.0070.00016.32
7.4.220.0100.01316.46
7.4.210.0110.00416.45
7.4.200.0030.00616.60
7.4.190.0070.00016.33
7.4.160.0130.00316.36
7.4.150.0160.00316.27
7.4.140.0100.00816.44
7.4.130.0030.01316.30
7.4.120.0100.01016.36
7.4.110.0060.01116.53
7.4.100.0100.00716.59
7.4.90.0090.00916.38
7.4.80.0150.00319.39
7.4.70.0040.01116.42
7.4.60.0090.00616.30
7.4.50.0050.00516.38
7.4.40.0070.00416.30
7.4.30.0130.00316.63
7.4.00.0070.01014.63
7.3.330.0030.00313.04
7.3.320.0050.00312.89
7.3.310.0000.00716.07
7.3.300.0030.00316.16
7.3.290.0100.00616.10
7.3.280.0080.00716.10
7.3.270.0000.01816.27
7.3.260.0110.00516.01
7.3.250.0120.00516.26
7.3.240.0060.01016.47
7.3.230.0000.01716.13
7.3.210.0100.00716.04
7.3.200.0100.00616.23
7.3.190.0070.01416.06
7.3.180.0060.01016.45
7.3.170.0120.00916.07
7.3.160.0060.00916.12
7.3.120.0040.01114.34
7.3.10.0040.01116.63
7.3.00.0130.00316.73
7.2.330.0120.00616.49
7.2.320.0100.00616.57
7.2.310.0070.01016.43
7.2.300.0120.00416.27
7.2.290.0090.01516.34
7.2.130.0070.01016.56
7.2.120.0040.01116.67
7.2.110.0100.00316.79
7.2.100.0060.01016.77
7.2.90.0030.00716.94
7.2.80.0030.01016.80
7.2.70.0030.01316.74
7.2.60.0070.00316.66
7.2.50.0130.00016.52
7.2.40.0060.00616.86
7.2.30.0140.00016.69
7.2.20.0100.00316.82
7.2.10.0120.00016.94
7.2.00.0120.00016.89
7.1.250.0080.00415.60
7.1.70.0040.00416.80
7.1.60.0110.01419.40
7.1.50.0070.01316.81
7.1.00.0000.04322.40
7.0.200.0030.00516.56
7.0.140.0100.06722.07
7.0.120.0000.06721.95
7.0.60.0070.05319.92
7.0.50.0070.06017.82
7.0.40.0100.03720.02
7.0.30.0270.04320.21
7.0.20.0170.04720.19
7.0.10.0100.05020.01
7.0.00.0100.07020.30
5.6.280.0030.07021.09
5.6.210.0070.04020.45
5.6.200.0030.08718.19
5.6.190.0130.07020.57
5.6.180.0500.08320.51
5.6.170.0230.05720.46
5.6.160.0100.06720.38
5.6.150.0030.05718.21
5.6.140.0030.06018.18
5.6.130.0030.08018.13
5.6.120.0130.06721.13
5.6.110.0070.04020.95
5.6.100.0000.07720.98
5.6.90.0130.07721.09
5.6.80.0170.03020.37
5.5.350.0100.04020.37
5.5.340.0070.06017.91
5.5.330.0100.08320.28
5.5.320.0230.04320.34
5.5.310.0230.05320.29
5.5.300.0000.09017.97
5.5.290.0070.05717.87
5.5.280.0100.08020.79
5.5.270.0000.04720.85
5.5.260.0130.06320.76
5.5.250.0130.04020.45
5.5.240.0000.07020.16
5.4.450.0130.05719.48
5.4.440.0100.07719.50
5.4.430.0030.05019.39
5.4.420.0070.05319.32
5.4.410.0000.08718.98
5.4.400.0070.07718.93
5.4.390.0030.05318.96
5.4.380.0000.06318.81
5.4.370.0030.05719.17
5.4.360.0130.06719.08
5.4.350.0000.07019.00
5.4.340.0030.05319.14
5.4.320.0130.05718.79
5.4.310.0100.03019.14
5.4.300.0100.03719.15
5.4.290.0030.03718.91
5.4.280.0030.04018.96
5.4.270.0030.03718.80
5.4.260.0030.03719.08
5.4.250.0030.03718.99
5.4.240.0000.04019.07
5.4.230.0030.03719.07
5.4.220.0070.03719.14
5.4.210.0070.03319.02
5.4.200.0030.06319.13
5.4.190.0030.03719.18
5.4.180.0100.03018.90
5.4.170.0070.03319.17
5.4.160.0100.03718.90
5.4.150.0070.03319.12
5.4.140.0000.03716.48
5.4.130.0000.04016.28
5.4.120.0000.03716.36
5.4.110.0030.03716.34
5.4.100.0070.03016.34
5.4.90.0030.03716.27
5.4.80.0030.03316.35
5.4.70.0030.03316.37
5.4.60.0070.03016.30
5.4.50.0030.03316.21
5.4.40.0070.03016.23
5.4.30.0070.03316.21
5.4.20.0030.03316.38
5.4.10.0070.04316.24
5.4.00.0030.04315.82
5.3.290.0100.03314.61
5.3.280.0030.03714.51
5.3.270.0030.04314.42
5.3.260.0030.03714.59
5.3.250.0030.03314.54
5.3.240.0070.04014.53
5.3.230.0030.03714.52
5.3.220.0070.03014.44
5.3.210.0030.03714.49
5.3.200.0070.04014.35
5.3.190.0000.04014.53
5.3.180.0070.03714.51
5.3.170.0000.03714.57
5.3.160.0030.03314.46
5.3.150.0000.04014.64
5.3.140.0070.03314.47
5.3.130.0030.04314.47
5.3.120.0000.04014.52
5.3.110.0030.04014.44
5.3.100.0100.07313.91
5.3.90.0200.03713.94
5.3.80.0030.07013.95
5.3.70.0030.06713.99
5.3.60.0070.07713.94
5.3.50.0130.06013.88
5.3.40.0130.06013.91
5.3.30.0130.02713.99
5.3.20.0030.03713.79
5.3.10.0030.06313.61
5.3.00.0030.07013.56
5.2.170.0030.06711.29
5.2.160.0000.06711.31
5.2.150.0070.03011.14
5.2.140.0000.03311.04
5.2.130.0000.07011.08
5.2.120.0070.06311.03
5.2.110.0030.05311.02
5.2.100.0070.06011.18
5.2.90.0000.06710.92
5.2.80.0070.04711.05
5.2.70.0070.06010.96
5.2.60.0000.06710.95
5.2.50.0000.06010.98
5.2.40.0130.05010.98
5.2.30.0030.06310.78
5.2.20.0070.03310.91
5.2.10.0070.02710.81
5.2.00.0070.04310.61
5.1.60.0000.0309.96
5.1.50.0030.0309.94
5.1.40.0000.04710.03
5.1.30.0100.02710.18
5.1.20.0000.02710.23
5.1.10.0000.02710.10
5.1.00.0070.04010.01
5.0.50.0000.0478.58
5.0.40.0000.0238.41
5.0.30.0000.0708.20
5.0.20.0070.0408.25
5.0.10.0030.0338.07
5.0.00.0000.0608.16
4.4.90.0030.0177.87
4.4.80.0100.0307.87
4.4.70.0030.0377.87
4.4.60.0000.0277.88
4.4.50.0030.0277.88
4.4.40.0030.0537.88
4.4.30.0070.0307.88
4.4.20.0030.0137.88
4.4.10.0030.0277.88
4.4.00.0030.0437.88
4.3.110.0030.0137.88
4.3.100.0100.0307.88
4.3.90.0000.0337.88
4.3.80.0030.0507.88
4.3.70.0070.0307.88
4.3.60.0000.0307.88
4.3.50.0000.0277.88
4.3.40.0030.0307.88
4.3.30.0030.0377.88
4.3.20.0000.0237.88
4.3.10.0000.0237.88
4.3.00.0000.0277.88

preferences:
50.06 ms | 400 KiB | 5 Q