3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ' '; $b = ' '; var_dump($a, $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)
8.3.60.0110.00418.30
8.3.50.0150.00618.06
8.3.40.0070.00718.71
8.3.30.0110.00318.60
8.3.20.0040.00418.52
8.3.10.0070.00021.63
8.3.00.0040.00420.80
8.2.180.0120.00918.43
8.2.170.0030.01122.96
8.2.160.0090.00619.25
8.2.150.0040.00424.18
8.2.140.0000.00724.66
8.2.130.0000.00821.07
8.2.120.0070.00026.35
8.2.110.0150.00919.32
8.2.100.0060.00617.91
8.2.90.0000.00819.12
8.2.80.0050.00317.97
8.2.70.0000.00917.38
8.2.60.0040.00417.80
8.2.50.0040.00818.10
8.2.40.0040.00420.42
8.2.30.0030.00520.54
8.2.20.0050.00217.57
8.2.10.0000.00717.98
8.2.00.0000.00817.97
8.1.280.0080.01125.92
8.1.270.0080.00023.74
8.1.260.0050.00328.09
8.1.250.0000.00728.09
8.1.240.0040.00423.98
8.1.230.0000.01117.45
8.1.220.0000.00917.74
8.1.210.0030.00618.77
8.1.200.0060.00317.09
8.1.190.0080.00017.22
8.1.180.0000.00818.10
8.1.170.0040.00418.65
8.1.160.0000.00719.03
8.1.150.0000.00718.73
8.1.140.0000.00719.41
8.1.130.0090.00017.63
8.1.120.0000.00717.39
8.1.110.0000.00817.29
8.1.100.0000.00717.32
8.1.90.0050.00317.36
8.1.80.0060.00317.34
8.1.70.0000.00717.21
8.1.60.0000.00717.50
8.1.50.0030.00517.43
8.1.40.0090.00017.35
8.1.30.0040.00417.51
8.1.20.0000.00717.48
8.1.10.0000.00817.30
8.1.00.0040.00417.39
8.0.300.0080.00018.77
8.0.290.0040.00416.75
8.0.280.0000.00718.28
8.0.270.0000.00717.18
8.0.260.0040.00417.16
8.0.250.0000.00716.80
8.0.240.0050.00316.85
8.0.230.0040.00416.88
8.0.220.0030.00616.86
8.0.210.0000.00816.71
8.0.200.0090.00016.91
8.0.190.0030.00616.84
8.0.180.0040.00416.82
8.0.170.0050.00216.84
8.0.160.0030.00316.76
8.0.150.0000.00716.74
8.0.140.0040.00416.84
8.0.130.0030.00313.30
8.0.120.0030.00516.67
8.0.110.0040.00416.64
8.0.100.0000.00916.76
8.0.90.0070.00016.85
8.0.80.0110.00716.77
8.0.70.0040.00416.93
8.0.60.0040.00416.81
8.0.50.0070.00016.61
8.0.30.0140.00617.06
8.0.20.0090.01017.40
8.0.10.0000.00716.80
8.0.00.0090.01116.61
7.4.330.0000.00515.08
7.4.320.0030.00316.53
7.4.300.0070.00016.52
7.4.290.0060.00016.48
7.4.280.0000.00716.40
7.4.270.0000.00816.45
7.4.260.0000.00816.43
7.4.250.0040.00416.51
7.4.240.0030.00316.53
7.4.230.0030.00316.32
7.4.220.0170.00316.47
7.4.210.0100.01016.53
7.4.200.0000.00716.53
7.4.160.0030.01316.38
7.4.150.0080.01217.40
7.4.140.0070.01117.86
7.4.130.0100.00716.45
7.4.120.0100.00816.49
7.4.110.0130.00316.27
7.4.100.0100.01016.39
7.4.90.0140.00516.25
7.4.80.0090.00919.39
7.4.70.0060.00916.26
7.4.60.0060.01816.26
7.4.50.0030.00916.45
7.4.40.0090.01116.27
7.4.30.0170.00016.65
7.4.00.0050.00315.01
7.3.330.0030.00312.88
7.3.320.0050.00012.90
7.3.310.0000.00716.06
7.3.300.0000.00616.02
7.3.290.0090.01016.17
7.3.280.0100.00816.16
7.3.270.0180.00317.40
7.3.260.0150.00916.14
7.3.250.0070.01116.21
7.3.240.0070.00916.30
7.3.230.0070.00716.48
7.3.210.0060.01116.05
7.3.200.0100.00716.52
7.3.190.0040.01616.29
7.3.180.0120.00916.35
7.3.170.0030.01716.21
7.3.160.0100.00716.19
7.3.10.0100.00616.13
7.3.00.0130.00716.03
7.2.330.0130.00716.11
7.2.320.0030.01816.25
7.2.310.0060.01016.18
7.2.300.0090.00616.35
7.2.290.0030.01716.56
7.2.130.0120.00716.36
7.2.120.0170.00316.39
7.2.110.0160.00516.27
7.2.100.0130.00316.40
7.2.90.0120.00816.13
7.2.80.0160.00916.12
7.2.70.0120.00916.21
7.2.60.0100.00716.48
7.2.50.0100.01016.68
7.2.40.0060.01016.25
7.2.30.0120.00716.34
7.2.20.0130.00616.27
7.2.10.0100.01016.45
7.2.00.0070.01217.43
7.1.250.0120.01015.45
7.1.200.0090.00615.69
7.1.100.0040.00718.10
7.1.70.0070.00017.11
7.1.60.0090.01220.41
7.1.00.0030.07022.36
7.0.200.0450.00714.49
7.0.60.0230.08021.66
7.0.50.0030.08017.81
7.0.40.0370.06720.21
7.0.30.0570.05720.02
7.0.20.0570.06020.23
7.0.10.0570.06020.18
7.0.00.0530.05320.32
5.6.280.0070.07020.89
5.6.210.0070.04320.72
5.6.200.0000.04318.19
5.6.190.0430.06020.38
5.6.180.0470.06020.64
5.6.170.0570.05020.47
5.6.160.0270.06720.54
5.6.150.0370.06020.43
5.6.140.0330.06320.33
5.6.130.0300.06720.33
5.6.120.0100.08020.31
5.6.110.0170.05320.29
5.6.100.0300.05720.20
5.6.90.0400.05720.29
5.6.80.0470.05319.69
5.6.70.0500.06019.70
5.6.60.0530.04319.71
5.6.50.0400.06019.91
5.6.40.0400.06319.57
5.6.30.0370.06719.69
5.6.20.0430.05719.66
5.6.10.0470.05319.80
5.6.00.0470.05019.67
5.5.350.0230.07320.32
5.5.340.0070.04717.92
5.5.330.0430.07720.43
5.5.320.0500.05320.21
5.5.310.0570.05020.38
5.5.300.0430.05720.32
5.5.290.0270.07020.13
5.5.280.0000.06720.13
5.5.270.0100.05720.13
5.5.260.0500.07320.10
5.5.250.0430.05019.86
5.5.240.0470.05319.49
5.5.230.0500.05719.55
5.5.220.0470.06019.39
5.5.210.0530.04719.59
5.5.200.0530.05019.29
5.5.190.0470.04719.36
5.5.180.0470.05019.40
5.5.160.0470.05319.45
5.5.150.0500.05019.53
5.5.140.0200.04319.48
5.5.130.0200.05019.51
5.5.120.0130.06019.67
5.5.110.0470.06019.52
5.5.100.0500.06019.47
5.5.90.0430.06019.46
5.5.80.0470.05719.38
5.5.70.0470.06019.50
5.5.60.0500.05019.45
5.5.50.0570.04719.34
5.5.40.0470.05719.29
5.5.30.0400.05019.40
5.5.20.0430.05019.29
5.5.10.0530.07319.29
5.5.00.0530.07719.45

preferences:
58.77 ms | 400 KiB | 5 Q