3v4l.org

run code in 300+ PHP versions simultaneously
<?php function a($a) { unset($a); for ($i = 0; $i < 255; $i++) { $GLOBALS['v'][$i] = 'hi'.$i; } var_dump(func_get_arg(0)); } a("1st"); ?>

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)
8.3.60.0080.00616.63
8.3.50.0070.01016.34
8.3.40.0030.01018.85
8.3.30.0120.00318.76
8.3.20.0000.00720.35
8.3.10.0070.00021.91
8.3.00.0050.00319.80
8.2.180.0050.00918.41
8.2.170.0110.00422.96
8.2.160.0100.00320.13
8.2.150.0030.00624.18
8.2.140.0030.00724.66
8.2.130.0080.00026.16
8.2.120.0040.00421.13
8.2.110.0040.00420.56
8.2.100.0080.00417.78
8.2.90.0030.00517.89
8.2.80.0000.00918.05
8.2.70.0050.00317.63
8.2.60.0090.00017.93
8.2.50.0050.00318.07
8.2.40.0040.00419.23
8.2.30.0030.00519.89
8.2.20.0000.00817.75
8.2.10.0040.00418.12
8.2.00.0000.00818.00
8.1.280.0130.00725.92
8.1.270.0040.00420.33
8.1.260.0070.00026.35
8.1.250.0000.00728.09
8.1.240.0030.00622.13
8.1.230.0060.00623.77
8.1.220.0040.00717.79
8.1.210.0000.00818.91
8.1.200.0060.00317.36
8.1.190.0050.00317.48
8.1.180.0000.00818.10
8.1.170.0080.00318.40
8.1.160.0040.00421.99
8.1.150.0000.00718.91
8.1.140.0060.00317.38
8.1.130.0030.00317.64
8.1.120.0000.00717.46
8.1.110.0000.00717.47
8.1.100.0000.01117.47
8.1.90.0070.00017.45
8.1.80.0000.00717.30
8.1.70.0000.00717.53
8.1.60.0050.00317.53
8.1.50.0030.00617.55
8.1.40.0040.00417.48
8.1.30.0050.00317.72
8.1.20.0030.00517.56
8.1.10.0000.00817.58
8.1.00.0080.00017.52
8.0.300.0080.00019.86
8.0.290.0040.00416.75
8.0.280.0030.00318.38
8.0.270.0030.00317.32
8.0.260.0000.00717.28
8.0.250.0080.00016.93
8.0.240.0000.00816.87
8.0.230.0070.00016.86
8.0.220.0030.00316.93
8.0.210.0000.00716.96
8.0.200.0060.00016.98
8.0.190.0050.00216.88
8.0.180.0060.00316.93
8.0.170.0040.00416.94
8.0.160.0040.00416.98
8.0.150.0000.00716.81
8.0.140.0040.00416.84
8.0.130.0030.00313.29
8.0.120.0030.00516.77
8.0.110.0070.00016.90
8.0.100.0080.00016.89
8.0.90.0040.00416.91
8.0.80.0030.01316.83
8.0.70.0040.00416.93
8.0.60.0030.00316.79
8.0.50.0070.00016.88
8.0.30.0060.01116.84
8.0.20.0120.00517.40
8.0.10.0000.00816.82
8.0.00.0090.01016.71
7.4.330.0050.00015.08
7.4.320.0000.00616.54
7.4.300.0030.00316.47
7.4.290.0070.00016.56
7.4.280.0060.00316.62
7.4.270.0070.00016.62
7.4.260.0050.00216.64
7.4.250.0040.00416.46
7.4.240.0030.00516.47
7.4.230.0070.00016.61
7.4.220.0130.01316.59
7.4.210.0060.00916.57
7.4.200.0030.00316.63
7.4.160.0130.00416.54
7.4.150.0070.01017.40
7.4.140.0170.00517.86
7.4.130.0160.00416.45
7.4.120.0080.01116.61
7.4.110.0090.01016.49
7.4.100.0160.00616.57
7.4.90.0100.00716.50
7.4.80.0090.01519.39
7.4.70.0120.00616.53
7.4.60.0100.00716.64
7.4.50.0050.00316.29
7.4.40.0120.00316.59
7.4.30.0070.01316.53
7.4.00.0070.00715.11
7.3.330.0000.00513.16
7.3.320.0030.00313.15
7.3.310.0030.00316.36
7.3.300.0050.00216.43
7.3.290.0070.00816.33
7.3.280.0130.00716.36
7.3.270.0070.01117.40
7.3.260.0140.00416.42
7.3.250.0060.01116.44
7.3.240.0090.00916.28
7.3.230.0070.01016.39
7.3.210.0120.00916.56
7.3.200.0070.01316.46
7.3.190.0030.01216.43
7.3.180.0130.00316.44
7.3.170.0000.01716.30
7.3.160.0070.01016.29
7.3.10.0000.01116.52
7.3.00.0040.01116.84
7.2.330.0090.00916.60
7.2.320.0100.01016.75
7.2.310.0100.00716.59
7.2.300.0130.00516.72
7.2.290.0070.01116.43
7.2.130.0090.00316.84
7.2.120.0050.00817.03
7.2.110.0040.00816.82
7.2.100.0080.00416.84
7.2.90.0090.00616.91
7.2.80.0040.00716.92
7.2.70.0040.00816.96
7.2.60.0040.00917.01
7.2.50.0050.00517.01
7.2.40.0030.00616.79
7.2.30.0060.00316.84
7.2.20.0090.00316.80
7.2.10.0000.00916.72
7.2.00.0070.00418.10
7.1.250.0040.00415.84
7.1.200.0030.01015.77
7.1.100.0030.00818.04
7.1.70.0040.00417.01
7.1.60.0130.01320.03
7.1.50.0120.00916.63
7.1.00.0070.07322.51
7.0.200.0070.00316.43
7.0.60.0170.06719.90
7.0.50.0030.07317.88
7.0.40.0030.04320.05
7.0.30.0270.05720.09
7.0.20.0100.04720.09
7.0.10.0070.06720.23
7.0.00.0130.07720.09
5.6.280.0000.03321.03
5.6.210.0170.07720.78
5.6.200.0070.07318.22
5.6.190.0170.07720.77
5.6.180.0070.05020.64
5.6.170.0330.07020.55
5.6.160.0100.08020.44
5.6.150.0100.07318.22
5.6.140.0030.06018.18
5.6.130.0000.04318.25
5.6.120.0130.06721.11
5.6.110.0100.08321.15
5.6.100.0030.06020.99
5.6.90.0000.04721.03
5.6.80.0130.07320.54
5.5.350.0170.03720.38
5.5.340.0100.05718.03
5.5.330.0100.08720.13
5.5.320.0270.03720.36
5.5.310.0230.07720.27
5.5.300.0070.04017.98
5.5.290.0070.07317.98
5.5.280.0100.05320.98
5.5.270.0130.08020.80
5.5.260.0100.08020.80
5.5.250.0070.08020.73
5.5.240.0000.08020.07
5.4.450.0300.06019.19
5.4.440.0400.05019.54
5.4.430.0430.04319.59
5.4.420.0300.05719.56
5.4.410.0470.04319.33
5.4.400.0270.05718.86
5.4.390.0300.05718.84
5.4.380.0370.04719.00
5.4.370.0270.05718.97
5.4.360.0400.05019.27
5.4.350.0400.04319.05
5.4.340.0400.06018.87
5.4.320.0430.04719.25
5.4.310.0400.04319.05
5.4.300.0400.05319.20
5.4.290.0330.05719.14
5.4.280.0430.04719.27
5.4.270.0500.04319.27
5.4.260.0470.04019.13
5.4.250.0530.04319.27
5.4.240.0330.05319.04
5.4.230.0230.06019.27
5.4.220.0370.05318.96
5.4.210.0300.05719.12
5.4.200.0470.04019.27
5.4.190.0330.05319.29
5.4.180.0330.05018.84
5.4.170.0400.05019.12
5.4.160.0270.06019.12
5.4.150.0370.05019.34
5.4.140.0400.04716.44
5.4.130.0400.04316.36
5.4.120.0430.04316.45
5.4.110.0400.05016.70
5.4.100.0270.05316.24
5.4.90.0370.05016.62
5.4.80.0330.04716.55
5.4.70.0230.04716.59
5.4.60.0200.07016.27
5.4.50.0170.03316.48
5.4.40.0300.06716.56
5.4.30.0000.04016.58
5.4.20.0200.03316.60
5.4.10.0330.05716.54

preferences:
38.68 ms | 400 KiB | 5 Q