3v4l.org

run code in 300+ PHP versions simultaneously
<?php function a(&$a) { $a++; } a(strlen('a')); echo $a;

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)
8.3.40.0070.00718.70
8.3.30.0070.01119.09
8.3.20.0080.00020.12
8.3.10.0080.00023.71
8.3.00.0050.00320.86
8.2.170.0070.00722.96
8.2.160.0100.00720.48
8.2.150.0050.00224.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0040.00419.36
8.2.110.0090.00022.08
8.2.100.0060.00620.39
8.2.90.0040.00419.13
8.2.80.0030.00517.97
8.2.70.0060.00317.50
8.2.60.0080.00017.90
8.2.50.0030.00618.07
8.2.40.0070.00319.82
8.2.30.0040.00418.18
8.2.20.0000.00717.58
8.2.10.0070.00018.00
8.2.00.0000.00717.55
8.1.270.0090.00024.00
8.1.260.0080.00026.35
8.1.250.0000.00828.09
8.1.240.0000.00822.02
8.1.230.0070.00418.99
8.1.220.0000.00717.74
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0050.00317.23
8.1.180.0030.00518.10
8.1.170.0040.00418.58
8.1.160.0000.00721.85
8.1.150.0000.00718.57
8.1.140.0040.00417.36
8.1.130.0000.00717.68
8.1.120.0000.00817.33
8.1.110.0040.00417.30
8.1.100.0000.00817.38
8.1.90.0000.00717.22
8.1.80.0000.00817.29
8.1.70.0030.00317.22
8.1.60.0000.00817.55
8.1.50.0080.00017.46
8.1.40.0060.00617.46
8.1.30.0050.00317.50
8.1.20.0000.00717.63
8.1.10.0020.00517.42
8.1.00.0060.00317.32
8.0.300.0040.00418.77
8.0.290.0000.00716.75
8.0.280.0030.00318.31
8.0.270.0000.00717.10
8.0.260.0030.00317.19
8.0.250.0050.00217.00
8.0.240.0030.00616.96
8.0.230.0000.00716.93
8.0.220.0000.00816.85
8.0.210.0030.00316.88
8.0.200.0000.00716.84
8.0.190.0060.00316.96
8.0.180.0070.00316.80
8.0.170.0000.00816.93
8.0.160.0040.00416.88
8.0.150.0030.00316.76
8.0.140.0110.00016.74
8.0.130.0060.00013.34
8.0.120.0040.00416.88
8.0.110.0050.00216.82
8.0.100.0000.00716.93
8.0.90.0030.00516.80
8.0.80.0120.01016.83
8.0.70.0040.00416.87
8.0.60.0040.00416.74
8.0.50.0040.00416.93
8.0.30.0120.01017.10
8.0.20.0100.00917.40
8.0.10.0000.00716.94
8.0.00.0090.00816.52
7.4.330.0020.00215.02
7.4.320.0030.00316.39
7.4.300.0000.00716.43
7.4.290.0020.00516.36
7.4.280.0030.00316.53
7.4.270.0030.00316.41
7.4.260.0100.00016.43
7.4.250.0070.00016.38
7.4.240.0020.00516.50
7.4.230.0030.00316.35
7.4.220.0000.01616.49
7.4.210.0040.01116.54
7.4.200.0070.00016.54
7.4.160.0130.01016.63
7.4.150.0150.00617.40
7.4.140.0130.00817.86
7.4.130.0080.00916.43
7.4.120.0140.00316.36
7.4.110.0130.00916.57
7.4.100.0070.01416.50
7.4.90.0090.00916.48
7.4.80.0120.00619.39
7.4.70.0030.01216.34
7.4.60.0140.00316.55
7.4.50.0000.00816.34
7.4.40.0130.00316.54
7.4.30.0110.01116.23
7.4.00.0030.01315.04
7.3.330.0060.00013.38
7.3.320.0000.00513.16
7.3.310.0000.00716.35
7.3.300.0040.00416.33
7.3.290.0030.01016.34
7.3.280.0090.01016.37
7.3.270.0060.01017.40
7.3.260.0110.00716.52
7.3.250.0090.01016.45
7.3.240.0090.01216.49
7.3.230.0070.01016.39
7.3.210.0120.00616.29
7.3.200.0030.01319.39
7.3.190.0140.00616.53
7.3.180.0100.01016.40
7.3.170.0090.00616.43
7.3.160.0070.00916.50
7.3.120.0040.01114.82
7.2.330.0150.00616.56
7.2.320.0130.00316.35
7.2.310.0150.00616.41
7.2.300.0100.00616.37
7.2.290.0040.01316.70
7.2.60.0070.00716.79
7.2.00.0000.01619.29
7.1.200.0060.00315.64
7.1.100.0000.01217.98
7.1.70.0030.00617.06
7.1.60.0130.00719.70
7.1.50.0030.02016.82
7.1.00.0000.08022.45
7.0.200.0000.00716.80
7.0.140.0000.07722.12
7.0.60.0070.07019.89
7.0.50.0000.05717.83
7.0.40.0100.07020.26
7.0.30.0130.06020.06
7.0.20.0470.07320.07
7.0.10.0070.07020.12
7.0.00.0030.08320.14
5.6.280.0070.07020.93
5.6.210.0070.04020.50
5.6.200.0070.05318.15
5.6.190.0030.08320.51
5.6.180.0330.05020.62
5.6.170.0170.04020.50
5.6.160.0170.07320.47
5.6.150.0100.07718.18
5.6.140.0170.06718.29
5.6.130.0000.06318.12
5.6.120.0170.07021.02
5.6.110.0130.07021.01
5.6.100.0100.05021.03
5.6.90.0130.08020.88
5.6.80.0100.05720.29
5.5.350.4070.03720.53
5.5.340.0030.08717.96
5.5.330.0170.02720.37
5.5.320.0000.05020.34
5.5.310.0130.04720.28
5.5.300.0000.05718.01
5.5.290.0030.07017.97
5.5.280.0100.08020.77
5.5.270.0000.07320.81
5.5.260.0130.08020.87
5.5.250.0070.03720.68
5.5.240.0270.04020.14
5.4.450.3830.03019.47
5.4.440.3630.04019.20
5.4.430.3730.03319.29
5.4.420.4230.03719.52
5.4.410.4400.02719.07
5.4.400.3800.04718.95
5.4.390.3500.03319.06
5.4.380.3770.03319.16
5.4.370.3830.03719.23
5.4.360.4330.04019.20
5.4.350.3600.03719.27
5.4.340.3330.04018.96
5.4.320.3300.04019.08
5.4.310.3330.03018.99
5.4.300.3300.03719.06
5.4.290.3470.03318.94
5.4.280.3670.03719.06
5.4.270.3600.04018.86
5.4.260.3800.04718.94
5.4.250.3730.04319.23
5.4.240.3600.04019.25
5.4.230.3570.03719.14
5.4.220.3770.03719.16
5.4.210.3430.02719.23
5.4.200.3570.02718.94
5.4.190.3370.03719.12
5.4.180.3470.02719.21
5.4.170.3970.03719.21
5.4.160.3470.03319.19
5.4.150.3300.04019.18
5.4.140.3730.04016.29
5.4.130.3300.03316.36
5.4.120.3270.03016.38
5.4.110.3530.04016.35
5.4.100.3330.03316.46
5.4.90.3570.04016.37
5.4.80.3530.04316.18
5.4.70.3370.03716.24
5.4.60.3400.03716.39
5.4.50.3600.03016.51
5.4.40.3500.03016.59
5.4.30.3430.03316.51
5.4.20.3370.03716.28
5.4.10.3430.02716.16
5.4.00.2670.03715.81
5.3.290.3470.03314.88
5.3.280.3830.04014.59
5.3.270.4130.04714.50
5.3.260.3630.04314.61
5.3.250.3270.04014.76
5.3.240.3570.04314.54
5.3.230.3430.03714.59
5.3.220.3200.03714.72
5.3.210.3430.02714.68
5.3.200.3700.02714.54
5.3.190.3570.03714.79
5.3.180.3600.04014.78
5.3.170.3730.04014.56
5.3.160.3370.03714.55
5.3.150.3430.03714.57
5.3.140.3400.03714.62
5.3.130.3630.04714.66
5.3.120.3170.03314.51
5.3.110.3200.03014.46
5.3.100.3330.03714.12
5.3.90.3570.03313.95
5.3.80.3370.04014.06
5.3.70.3530.03013.91
5.3.60.3600.04013.93
5.3.50.4200.04013.86
5.3.40.4470.03714.10
5.3.30.3430.03313.88
5.3.20.3430.03013.84
5.3.10.3430.03313.73
5.3.00.3700.04313.54
5.2.170.3830.02311.25
5.2.160.3730.03011.05
5.2.150.3300.02711.21
5.2.140.3170.03011.06
5.2.130.2830.02711.01
5.2.120.2770.02711.02
5.2.110.2900.02711.01
5.2.100.3300.03311.23
5.2.90.3430.03011.18
5.2.80.3230.03011.02
5.2.70.3070.02711.01
5.2.60.2930.02711.02
5.2.50.3070.02711.13
5.2.40.2530.03310.93
5.2.30.3000.03011.01
5.2.20.3030.02310.93
5.2.10.2200.03010.83
5.2.00.2630.03010.68
5.1.60.2530.0239.91
5.1.50.2530.0279.88
5.1.40.2430.0279.90
5.1.30.2270.02710.24
5.1.20.2200.02310.28
5.1.10.2600.02310.14
5.1.00.2300.03010.18
5.0.50.1100.0208.47
5.0.40.1370.0238.49
5.0.30.1300.0338.07
5.0.20.1330.0178.21
5.0.10.1430.0278.16
5.0.00.1330.0378.04
4.4.90.1430.0176.95
4.4.80.1330.0206.95
4.4.70.1600.0076.95
4.4.60.1370.0176.95
4.4.50.1100.0176.95
4.4.40.1330.0306.95
4.4.30.1100.0176.95
4.4.20.1130.0106.95
4.4.10.1230.0106.95
4.4.00.1130.0236.95
4.3.110.1170.0106.95
4.3.100.1270.0206.95
4.3.90.1570.0206.95
4.3.80.1330.0306.95
4.3.70.1400.0176.95
4.3.60.1500.0176.95
4.3.50.1400.0106.95
4.3.40.1300.0276.95
4.3.30.0830.0206.95
4.3.20.0700.0176.95
4.3.10.0900.0176.95
4.3.00.0830.0236.95

preferences:
60.43 ms | 400 KiB | 5 Q