3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 5; $b = &$a; echo ++$a; echo $b++; echo $b;

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)
8.3.40.0140.00018.73
8.3.30.0150.00018.96
8.3.20.0000.00720.21
8.3.10.0070.00021.92
8.3.00.0030.00322.52
8.2.170.0100.00322.96
8.2.160.0050.00519.11
8.2.150.0000.00824.18
8.2.140.0110.00024.66
8.2.130.0040.00426.16
8.2.120.0050.00319.23
8.2.110.0030.00622.25
8.2.100.0110.00019.45
8.2.90.0040.00419.16
8.2.80.0060.00318.05
8.2.70.0050.00317.49
8.2.60.0040.00417.93
8.2.50.0000.00818.07
8.2.40.0080.00018.34
8.2.30.0000.00717.99
8.2.20.0000.00717.70
8.2.10.0000.00717.55
8.2.00.0070.00417.77
8.1.270.0080.00022.24
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0060.00323.80
8.1.230.0110.00018.76
8.1.220.0050.00317.74
8.1.210.0060.00318.77
8.1.200.0100.00017.10
8.1.190.0000.00717.28
8.1.180.0040.00418.74
8.1.170.0000.00818.54
8.1.160.0030.00322.05
8.1.150.0000.00718.48
8.1.140.0070.00017.38
8.1.130.0030.00317.71
8.1.120.0030.00417.37
8.1.110.0000.01017.32
8.1.100.0030.00517.33
8.1.90.0000.00717.40
8.1.80.0070.00017.41
8.1.70.0000.00717.35
8.1.60.0040.00417.52
8.1.50.0030.00617.42
8.1.40.0000.00817.43
8.1.30.0000.00717.51
8.1.20.0000.00817.57
8.1.10.0050.00317.39
8.1.00.0070.00017.47
8.0.300.0040.00418.77
8.0.290.0000.00717.18
8.0.280.0030.00318.43
8.0.270.0030.00317.24
8.0.260.0000.00616.67
8.0.250.0030.00316.88
8.0.240.0000.00716.91
8.0.230.0030.00316.84
8.0.220.0030.00316.75
8.0.210.0070.00016.75
8.0.200.0030.00316.88
8.0.190.0030.00316.85
8.0.180.0030.00316.83
8.0.170.0040.00416.83
8.0.160.0000.00716.77
8.0.150.0000.00716.87
8.0.140.0040.00416.78
8.0.130.0030.00313.28
8.0.120.0000.00716.77
8.0.110.0000.00716.79
8.0.100.0000.00916.85
8.0.90.0070.00016.84
8.0.80.0090.00616.78
8.0.70.0040.00416.68
8.0.60.0000.00716.80
8.0.50.0030.00516.76
8.0.30.0140.00417.19
8.0.20.0140.00517.40
8.0.10.0070.00016.97
8.0.00.0080.01016.71
7.4.330.0050.00015.00
7.4.320.0000.00716.52
7.4.300.0000.00716.45
7.4.290.0070.00016.52
7.4.280.0030.00516.55
7.4.270.0030.00316.54
7.4.260.0030.00316.44
7.4.250.0070.00016.39
7.4.240.0020.00516.51
7.4.230.0030.00316.32
7.4.220.0160.00316.45
7.4.210.0070.00816.46
7.4.200.0040.00416.25
7.4.190.0030.00316.70
7.4.160.0090.00916.40
7.4.150.0120.00617.40
7.4.140.0130.01117.86
7.4.130.0060.01116.42
7.4.120.0140.00316.54
7.4.110.0120.00616.41
7.4.100.0130.01116.52
7.4.90.0060.01116.39
7.4.80.0080.01119.39
7.4.70.0070.01316.21
7.4.60.0060.00916.59
7.4.50.0000.00816.53
7.4.40.0110.00422.77
7.4.30.0100.00716.40
7.4.00.0040.01414.96
7.3.330.0060.00013.00
7.3.320.0050.00013.10
7.3.310.0070.00016.30
7.3.300.0000.00716.23
7.3.290.0090.01016.36
7.3.280.0080.01016.29
7.3.270.0110.00517.40
7.3.260.0120.00416.69
7.3.250.0140.00516.51
7.3.240.0030.01416.66
7.3.230.0110.01116.39
7.3.210.0160.00016.46
7.3.200.0060.01719.39
7.3.190.0100.01316.42
7.3.180.0090.01716.21
7.3.170.0120.00616.50
7.3.160.0030.01316.32
7.3.120.0060.00614.50
7.2.330.0040.01416.65
7.2.320.0110.01416.68
7.2.310.0080.01116.44
7.2.300.0130.00316.27
7.2.290.0060.00916.25
7.2.00.0070.00719.22
7.1.100.0110.00018.04
7.1.70.0080.00016.88
7.1.60.0060.01919.82
7.1.50.0030.01716.93
7.1.00.0030.04022.48
7.0.200.0030.00716.88
7.0.140.0070.06322.04
7.0.60.0070.03719.95
7.0.50.0030.04017.87
7.0.40.0130.04020.06
7.0.30.0270.04020.21
7.0.20.0370.07320.21
7.0.10.0070.09320.04
7.0.00.0130.08019.99
5.6.280.0000.07721.11
5.6.210.0000.04320.56
5.6.200.0170.07718.13
5.6.190.0100.05720.35
5.6.180.0330.07720.27
5.6.170.0200.05320.42
5.6.160.0070.04320.37
5.6.150.0070.07718.13
5.6.140.0070.06718.17
5.6.130.0030.05318.21
5.6.120.0100.06321.00
5.6.110.0130.08020.96
5.6.100.0130.07321.10
5.6.90.0130.06020.99
5.6.80.0000.08720.39
5.5.350.0170.06320.32
5.5.340.0000.04017.98
5.5.330.0100.05020.29
5.5.320.0200.07020.29
5.5.310.0330.07320.24
5.5.300.0030.05317.87
5.5.290.0070.03717.91
5.5.280.0130.06320.77
5.5.270.0070.07020.86
5.5.260.0200.07320.75
5.5.250.0030.05020.70
5.5.240.0270.07320.25
5.4.450.0300.05719.41
5.4.440.0300.04319.39
5.4.430.0270.04319.20
5.4.420.0270.06019.48
5.4.410.0270.03319.15
5.4.400.0270.07318.95
5.4.390.0200.04719.09
5.4.380.0370.06018.89
5.4.370.0270.07719.16
5.4.360.0230.07719.25
5.4.350.0370.06019.13
5.4.340.0330.04019.09
5.4.320.0200.06319.27
5.4.310.0330.06719.24
5.4.300.0230.07719.19
5.4.290.0300.07019.06
5.4.280.0270.04018.88
5.4.270.0330.07019.09
5.4.260.0400.06318.92
5.4.250.0170.04719.13
5.4.240.0270.03318.92
5.4.230.0430.05719.15
5.4.220.0370.06719.07
5.4.210.0370.06719.12
5.4.200.0270.05319.25
5.4.190.0200.06319.12
5.4.180.0230.04018.91
5.4.170.0270.07319.12
5.4.160.0330.07018.83
5.4.150.0300.04319.02
5.4.140.0230.06716.34
5.4.130.0230.07016.17
5.4.120.0270.06316.32
5.4.110.0170.07316.39
5.4.100.0200.07016.21
5.4.90.0230.03716.13
5.4.80.0230.07016.42
5.4.70.0330.06316.41
5.4.60.0300.06016.36
5.4.50.0330.06016.36
5.4.40.0270.06316.27
5.4.30.0300.06016.29
5.4.20.0300.03016.38
5.4.10.0270.04316.35
5.4.00.0270.04015.76
5.3.290.0230.04014.69
5.3.280.0230.07714.49
5.3.270.0170.04014.54
5.3.260.0300.07314.44
5.3.250.0300.06714.43
5.3.240.0370.04014.46
5.3.230.0300.06014.64
5.3.220.0270.07014.42
5.3.210.0300.06314.51
5.3.200.0330.05014.40
5.3.190.0230.04014.40
5.3.180.0230.04014.60
5.3.170.0230.07714.46
5.3.160.0270.07314.42
5.3.150.0230.05014.54
5.3.140.0300.06714.40
5.3.130.0270.04714.49
5.3.120.0170.07714.41
5.3.110.0200.03714.38
5.3.100.0270.07013.91
5.3.90.0270.04013.86
5.3.80.0330.06713.92
5.3.70.0170.06013.92
5.3.60.0270.05713.87
5.3.50.0230.07013.85
5.3.40.0300.05713.88
5.3.30.0230.04713.76
5.3.20.0300.04313.62
5.3.10.0230.07013.49
5.3.00.0500.02013.73
5.2.170.0200.02712.02
5.2.160.0200.03312.02
5.2.150.0200.02712.02
5.2.140.0200.06012.02
5.2.130.0200.06012.02
5.2.120.0230.05312.02
5.2.110.0270.05712.02
5.2.100.0130.03312.02
5.2.90.0270.05312.02
5.2.80.0130.03312.02
5.2.70.0200.03712.02
5.2.60.0300.05712.02
5.2.50.0230.04712.02
5.2.40.0170.04312.02
5.2.30.0200.02712.02
5.2.20.0100.03712.02
5.2.10.0230.05312.02
5.2.00.0230.03312.02
5.1.60.0170.05312.02
5.1.50.0230.04712.02
5.1.40.0200.04312.02
5.1.30.0270.05012.02
5.1.20.0100.04712.02
5.1.10.0200.05012.02
5.1.00.0170.05312.02
5.0.50.0070.04012.02
5.0.40.0070.02712.02
5.0.30.0130.05312.02
5.0.20.0070.03012.02
5.0.10.0130.04012.02
5.0.00.0030.04312.02
4.4.90.0030.01712.02
4.4.80.0030.03312.02
4.4.70.0130.02712.02
4.4.60.0070.02312.02
4.4.50.0100.02012.02
4.4.40.0130.03312.02
4.4.30.0200.02712.02
4.4.20.0070.02312.02
4.4.10.0070.04012.02
4.4.00.0030.04012.02
4.3.110.0100.03712.02
4.3.100.0070.02312.02
4.3.90.0100.03012.02
4.3.80.0070.02712.02
4.3.70.0070.01712.02
4.3.60.0100.03312.02
4.3.50.0070.02012.02
4.3.40.0130.03012.02
4.3.30.0070.01712.02
4.3.20.0030.02012.02
4.3.10.0100.02712.02
4.3.00.0030.02312.02

preferences:
43.52 ms | 400 KiB | 5 Q