3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 1; $b = &$a; echo (++$a)+(++$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)
8.3.40.0140.00018.80
8.3.30.0070.00718.72
8.3.20.0070.01119.98
8.3.10.0030.00521.78
8.3.00.0000.00819.79
8.2.170.0180.00422.96
8.2.160.0160.00420.58
8.2.150.0040.00424.18
8.2.140.0090.00924.66
8.2.130.0040.00426.16
8.2.120.0080.00017.48
8.2.110.0030.00722.20
8.2.100.0080.00417.72
8.2.90.0040.00418.09
8.2.80.0030.00517.97
8.2.70.0060.00317.63
8.2.60.0070.00018.03
8.2.50.0030.00518.07
8.2.40.0040.00421.01
8.2.30.0000.00719.86
8.2.20.0050.00217.70
8.2.10.0000.00717.86
8.2.00.0030.00517.89
8.1.270.0040.00420.33
8.1.260.0050.00326.35
8.1.250.0000.00728.09
8.1.240.0030.00622.05
8.1.230.0090.00320.92
8.1.220.0030.00517.74
8.1.210.0080.00018.77
8.1.200.0060.00317.23
8.1.190.0030.00616.88
8.1.180.0040.00418.10
8.1.170.0080.00018.43
8.1.160.0040.00421.95
8.1.150.0060.00318.79
8.1.140.0000.00817.42
8.1.130.0070.00017.63
8.1.120.0000.00817.39
8.1.110.0070.00317.29
8.1.100.0030.00317.32
8.1.90.0030.00317.34
8.1.80.0000.00817.39
8.1.70.0000.00717.39
8.1.60.0040.00417.44
8.1.50.0030.00517.44
8.1.40.0030.00517.30
8.1.30.0080.00017.64
8.1.20.0050.00317.66
8.1.10.0000.00717.47
8.1.00.0080.00017.41
8.0.300.0050.00220.16
8.0.290.0000.00816.63
8.0.280.0070.00018.47
8.0.270.0000.00817.23
8.0.260.0100.00017.29
8.0.250.0080.00016.83
8.0.240.0050.00216.90
8.0.230.0040.00416.89
8.0.220.0070.00016.81
8.0.210.0040.00416.74
8.0.200.0030.00316.84
8.0.190.0000.00716.88
8.0.180.0000.00716.77
8.0.170.0000.00816.85
8.0.160.0030.00516.73
8.0.150.0030.00316.82
8.0.140.0030.00316.66
8.0.130.0000.00613.20
8.0.120.0000.00816.76
8.0.110.0000.00716.86
8.0.100.0040.00416.76
8.0.90.0050.00316.88
8.0.80.0120.00916.80
8.0.70.0000.00716.69
8.0.60.0000.00716.93
8.0.50.0030.00516.86
8.0.30.0050.01517.16
8.0.20.0090.01217.40
8.0.10.0000.00816.93
8.0.00.0100.00816.69
7.4.330.0050.00015.08
7.4.320.0030.00316.43
7.4.300.0030.00316.41
7.4.290.0000.00716.32
7.4.280.0000.00716.50
7.4.270.0000.00616.41
7.4.260.0030.00316.48
7.4.250.0020.00516.49
7.4.240.0020.00516.43
7.4.230.0000.00716.62
7.4.220.0090.00916.44
7.4.210.0050.00916.45
7.4.200.0000.00716.42
7.4.160.0090.01216.34
7.4.150.0100.00717.40
7.4.140.0090.00917.86
7.4.130.0100.00816.48
7.4.120.0140.00316.42
7.4.110.0040.01316.65
7.4.100.0070.01116.55
7.4.90.0100.00716.49
7.4.80.0080.01219.39
7.4.70.0110.00516.45
7.4.60.0030.01316.56
7.4.50.0000.00816.55
7.4.40.0000.01616.48
7.4.30.0070.01316.61
7.4.00.0060.00914.99
7.3.330.0020.00212.93
7.3.320.0030.00313.06
7.3.310.0070.00016.04
7.3.300.0000.00716.19
7.3.290.0000.00616.09
7.3.280.0080.01116.16
7.3.270.0030.01917.40
7.3.260.0070.01116.47
7.3.250.0080.01316.20
7.3.240.0090.00916.18
7.3.230.0130.00716.50
7.3.210.0140.00716.34
7.3.200.0100.01019.39
7.3.190.0140.00316.20
7.3.180.0030.01216.36
7.3.170.0030.01316.27
7.3.160.0060.01016.21
7.3.120.0030.01314.80
7.3.110.0090.00914.88
7.3.100.0000.01414.96
7.3.90.0030.01014.54
7.3.80.0000.00914.84
7.3.70.0110.00014.67
7.3.60.0130.00314.75
7.3.50.0060.00614.78
7.3.40.0080.00314.49
7.3.30.0110.00614.73
7.3.20.0000.00916.49
7.3.10.0060.00616.49
7.3.00.0030.00716.61
7.2.330.0110.00816.69
7.2.320.0130.00316.20
7.2.310.0130.00516.49
7.2.300.0030.01516.64
7.2.290.0040.01216.71
7.2.250.0080.01214.90
7.2.240.0140.00615.17
7.2.230.0040.01115.14
7.2.220.0040.01514.88
7.2.210.0040.01414.90
7.2.200.0070.00715.09
7.2.190.0000.01514.79
7.2.180.0070.00714.85
7.2.170.0110.00015.14
7.2.60.0070.01016.83
7.2.00.0000.01319.16
7.1.330.0030.01115.61
7.1.320.0120.00415.46
7.1.310.0030.01315.72
7.1.300.0060.00615.46
7.1.290.0090.00315.80
7.1.280.0030.00915.76
7.1.270.0100.00315.57
7.1.260.0070.00415.49
7.1.200.0110.00015.54
7.1.100.0000.01018.18
7.1.70.0000.01016.80
7.1.60.0130.01320.03
7.1.50.0070.01416.94
7.1.00.0030.08022.28
7.0.200.0000.01016.74
7.0.60.0070.03720.02
7.0.50.0070.08017.79
7.0.40.0130.07320.30
7.0.30.0230.05320.10
7.0.20.0270.06720.21
7.0.10.0230.04320.16
7.0.00.0070.07020.16
5.6.280.0000.07720.92
5.6.210.0030.08320.54
5.6.200.0100.07718.14
5.6.190.0130.08320.57
5.6.180.0270.06020.57
5.6.170.0270.08320.40
5.6.160.0030.04020.56
5.6.150.0100.05018.21
5.6.140.0100.06318.16
5.6.130.0100.08018.17
5.6.120.0130.08021.05
5.6.110.0100.04021.00
5.6.100.0100.08020.99
5.6.90.0100.08020.97
5.6.80.0130.07020.37
5.6.70.0230.07720.36
5.5.350.0030.08020.43
5.5.340.0070.05017.93
5.5.330.0130.07320.07
5.5.320.0230.04320.13
5.5.310.0170.04020.41
5.5.300.0100.07717.91
5.5.290.0130.08017.92
5.5.280.0070.04320.76
5.5.270.0030.09020.76
5.5.260.0100.03320.87
5.5.250.0100.08320.68
5.5.240.0100.06720.25
5.4.450.0130.05319.48
5.4.440.0170.05019.43
5.4.430.0170.04719.50
5.4.420.0230.06319.12
5.4.410.0170.05319.42
5.4.400.0370.05018.78
5.4.390.0230.05019.21
5.4.380.0270.04018.95
5.4.370.0200.04718.90
5.4.360.0200.05318.92
5.4.350.0230.04319.15
5.4.340.0170.05318.77
5.4.320.0130.05719.20
5.4.310.0230.04319.00
5.4.300.0230.04318.99
5.4.290.0170.05018.80
5.4.280.0230.04718.95
5.4.270.0170.04719.25
5.4.260.0200.04319.25
5.4.250.0130.05019.27
5.4.240.0130.05019.25
5.4.230.0200.04719.14
5.4.220.0170.05319.30
5.4.210.0270.04719.26
5.4.200.0230.04716.87
5.4.190.0230.07319.26
5.4.180.0130.05318.86
5.4.170.0070.06319.30
5.4.160.0200.05019.13
5.4.150.0200.05019.21
5.4.140.0170.05016.26
5.4.130.0100.05716.26
5.4.120.0230.04716.24
5.4.110.0130.05316.26
5.4.100.0200.04316.24
5.4.90.0200.04316.54
5.4.80.0300.04716.46
5.4.70.0130.05016.29
5.4.60.0270.04716.31
5.4.50.0100.05316.27
5.4.40.0170.05016.13
5.4.30.0230.04316.20
5.4.20.0170.04716.20
5.4.10.0070.05316.54
5.4.00.0170.04715.89

preferences:
60.89 ms | 400 KiB | 5 Q