3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "x"; $a++; echo($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)
8.3.40.0090.00618.66
8.3.30.0070.00718.54
8.3.20.0000.00818.59
8.3.10.0040.00418.55
8.3.00.0050.00319.38
8.2.170.0120.00622.96
8.2.160.0090.00618.98
8.2.150.0030.00624.18
8.2.140.0060.00324.66
8.2.130.0060.00326.16
8.2.120.0040.00419.68
8.2.110.0090.00022.04
8.2.100.0120.00019.95
8.2.90.0030.00517.63
8.2.80.0030.00718.66
8.2.70.0030.00617.50
8.2.60.0050.00318.04
8.2.50.0080.00318.07
8.2.40.0070.00018.34
8.2.30.0050.00517.64
8.2.20.0070.00317.64
8.2.10.0000.00717.57
8.2.00.0040.00417.77
8.1.270.0060.00323.99
8.1.260.0080.00026.35
8.1.250.0000.00828.09
8.1.240.0000.00920.54
8.1.230.0080.00417.82
8.1.220.0000.00717.74
8.1.210.0110.00018.77
8.1.200.0030.00617.35
8.1.190.0050.00317.10
8.1.180.0100.00018.10
8.1.170.0040.00418.50
8.1.160.0000.00819.04
8.1.150.0000.00718.55
8.1.140.0040.00417.30
8.1.130.0000.00717.29
8.1.120.0070.00017.44
8.1.110.0050.00317.46
8.1.100.0000.00717.44
8.1.90.0030.00517.31
8.1.80.0040.00317.29
8.1.70.0030.00317.27
8.1.60.0040.00417.50
8.1.50.0040.00417.51
8.1.40.0040.00417.34
8.1.30.0000.00917.41
8.1.20.0000.00917.55
8.1.10.0070.00017.45
8.1.00.0000.00717.34
8.0.300.0000.00718.77
8.0.290.0040.00416.88
8.0.280.0090.00018.47
8.0.270.0000.00717.13
8.0.260.0030.00516.73
8.0.250.0020.00616.96
8.0.240.0040.00416.88
8.0.230.0040.00416.87
8.0.220.0000.01016.79
8.0.210.0000.00616.75
8.0.200.0000.00816.80
8.0.190.0070.00016.89
8.0.180.0070.00016.78
8.0.170.0050.00316.83
8.0.160.0070.00016.71
8.0.150.0040.00416.81
8.0.140.0040.00416.66
8.0.130.0030.00513.34
8.0.120.0100.00016.72
8.0.110.0040.00416.77
8.0.100.0030.00516.93
8.0.90.0000.00716.65
8.0.80.0030.01716.80
8.0.70.0000.00716.73
8.0.60.0040.00416.71
8.0.50.0040.00416.83
8.0.30.0120.00916.88
8.0.20.0070.01117.08
8.0.10.0040.00416.80
8.0.00.0130.01016.52
7.4.330.0030.00313.03
7.4.320.0040.00416.42
7.4.300.0060.00016.45
7.4.290.0000.00916.50
7.4.280.0000.00716.34
7.4.270.0060.00316.52
7.4.260.0060.00013.21
7.4.250.0040.00416.54
7.4.240.0060.00016.41
7.4.230.0030.00316.54
7.4.220.0090.01016.61
7.4.210.0120.00316.45
7.4.200.0030.00316.48
7.4.190.0040.00416.59
7.4.160.0000.01516.38
7.4.150.0140.00316.33
7.4.140.0040.01517.86
7.4.130.0160.00916.31
7.4.120.0130.00716.43
7.4.110.0090.01216.43
7.4.100.0090.01316.32
7.4.90.0130.00516.40
7.4.80.0060.01019.39
7.4.70.0060.01016.66
7.4.60.0130.00316.51
7.4.50.0070.00016.34
7.4.40.0070.01116.41
7.4.30.0170.00016.54
7.4.00.0000.01515.06
7.3.330.0000.00613.10
7.3.320.0030.00312.97
7.3.310.0000.00816.33
7.3.300.0040.00416.25
7.3.290.0040.01116.26
7.3.280.0040.01116.28
7.3.270.0100.00716.25
7.3.260.0070.01216.48
7.3.240.0110.00716.60
7.3.230.0100.00716.65
7.3.210.0140.00316.25
7.3.200.0130.00316.26
7.3.190.0030.01316.47
7.3.180.0120.00616.29
7.3.170.0170.00616.37
7.3.160.0080.00816.29
7.3.120.0070.00314.99
7.2.330.0100.00716.58
7.2.320.0150.00916.66
7.2.310.0070.01116.48
7.2.300.0090.01116.62
7.2.290.0140.00416.56
7.2.00.0060.00619.02
7.1.100.0070.00718.36
7.1.70.0040.00416.73
7.1.60.0040.00817.22
7.1.50.0070.01416.73
7.1.00.0000.07722.50
7.0.200.0030.00616.76
7.0.140.0030.06721.90
7.0.120.0030.07322.26
7.0.60.0070.03719.96
7.0.50.0070.06317.88
7.0.40.0070.07320.21
7.0.30.0300.04320.18
7.0.20.0130.05020.12
7.0.10.0100.05020.30
7.0.00.0100.04020.19
5.6.280.0070.07021.00
5.6.210.0070.03720.76
5.6.200.0100.08318.11
5.6.190.0100.04720.39
5.6.180.0230.07320.67
5.6.170.0300.07320.48
5.6.160.0070.08320.38
5.6.150.0100.04718.18
5.6.140.0030.04018.09
5.6.130.0100.04718.11
5.6.120.0070.04721.01
5.6.110.0130.03020.98
5.6.100.0030.04721.00
5.6.90.0100.07721.11
5.6.80.0070.04720.48
5.6.70.4430.03020.52
5.5.350.0100.08320.43
5.5.340.0070.08317.98
5.5.330.0030.08720.23
5.5.320.0270.07720.49
5.5.310.0270.04320.17
5.5.300.0030.04018.02
5.5.290.0070.07717.88
5.5.280.0170.07020.89
5.5.270.0100.08320.84
5.5.260.0070.04020.86
5.5.250.0230.06720.46
5.5.240.0270.07720.20
5.4.450.4070.04019.39
5.4.440.0070.03719.46
5.4.430.1430.04719.54
5.4.420.4270.03319.11
5.4.410.4130.03319.23
5.4.400.3800.03718.80
5.4.390.3830.04019.21
5.4.380.3800.04019.01
5.4.370.3830.04319.07
5.4.360.4470.03718.92
5.4.350.2630.03318.91
5.4.340.2400.04019.03
5.4.320.2700.03718.80
5.4.310.3170.03019.07
5.4.300.3230.03719.07
5.4.290.3100.03319.14
5.4.280.3370.03719.05
5.4.270.3770.03719.00
5.4.260.3870.04318.99
5.4.250.4100.03019.00
5.4.240.3700.03718.89
5.4.230.4070.04019.05
5.4.220.3630.04019.05
5.4.210.4030.03719.15
5.4.200.4000.03719.05
5.4.190.3730.04019.17
5.4.180.3400.04319.06
5.4.170.3730.03718.96
5.4.160.3700.04018.95
5.4.150.4070.05318.77
5.4.140.4000.03016.21
5.4.130.4070.04316.19
5.4.120.3900.03716.39
5.4.110.4500.04016.32
5.4.100.3800.03716.46
5.4.90.4030.03316.38
5.4.80.4100.03316.29
5.4.70.4230.03716.44
5.4.60.4070.03716.32
5.4.50.4070.03716.43
5.4.40.3600.03316.29
5.4.30.3900.03016.36
5.4.20.3900.03316.36
5.4.10.3830.03316.38
5.4.00.3800.03715.87
5.3.290.2730.04014.59
5.3.280.3900.04014.48
5.3.270.3770.03714.57
5.3.260.4500.03714.56
5.3.250.3700.04314.69
5.3.240.3900.03714.52
5.3.230.3700.03314.61
5.3.220.4000.03714.53
5.3.210.3930.04014.37
5.3.200.4030.03714.49
5.3.190.3930.03014.48
5.3.180.3830.03014.48
5.3.170.3700.04014.55
5.3.160.3830.03014.35
5.3.150.4100.03014.45
5.3.140.3870.04014.56
5.3.130.4000.04014.48
5.3.120.3900.03714.51
5.3.110.3700.04314.48
5.3.100.4030.03713.91
5.3.90.4130.03314.00
5.3.80.3630.04013.83
5.3.70.3870.03314.10
5.3.60.3800.03713.93
5.3.50.3800.03313.87
5.3.40.4130.03313.76
5.3.30.4000.03313.70
5.3.20.3800.02713.47
5.3.10.3870.04013.58
5.3.00.4070.04013.55
5.2.170.3100.03011.03
5.2.160.3430.03011.13
5.2.150.3100.03711.13
5.2.140.3370.03311.13
5.2.130.3370.03011.09
5.2.120.3400.02711.06
5.2.110.2870.03010.95
5.2.100.3430.03011.04
5.2.90.3400.03010.91
5.2.80.3670.03711.07
5.2.70.3470.02711.24
5.2.60.3700.02311.01
5.2.50.3330.02710.96
5.2.40.3330.03010.97
5.2.30.2830.02310.97
5.2.20.2800.02710.95
5.2.10.2530.02710.85
5.2.00.2770.02710.72
5.1.60.2800.02310.03
5.1.50.2670.02010.00
5.1.40.2700.0309.93
5.1.30.2730.02710.34
5.1.20.2630.02010.25
5.1.10.2470.0309.96
5.1.00.2830.02310.11
5.0.50.1500.0278.56
5.0.40.1230.0238.42
5.0.30.1300.0278.12
5.0.20.1270.0208.32
5.0.10.1270.0208.07
5.0.00.1330.0308.13
4.4.90.1470.0205.80
4.4.80.1330.0175.79
4.4.70.1270.0175.82
4.4.60.1530.0205.81
4.4.50.1370.0135.77
4.4.40.1330.0235.81
4.4.30.1530.0135.81
4.4.20.1430.0175.86
4.4.10.1470.0135.83
4.4.00.1270.0275.94
4.3.110.1270.0135.77
4.3.100.1370.0175.76
4.3.90.1500.0135.67
4.3.80.1330.0235.67
4.3.70.1330.0135.70
4.3.60.1430.0175.71
4.3.50.1470.0175.74
4.3.40.1470.0305.69
4.3.30.0870.0235.24
4.3.20.0670.0175.24
4.3.10.0670.0175.24
4.3.00.0370.0175.24

preferences:
36.89 ms | 400 KiB | 5 Q