3v4l.org

run code in 300+ PHP versions simultaneously
<?php $vars = get_defined_vars(); $mystring = null; $vars = @array_diff(get_defined_vars(),$vars); print_r($vars); echo '</pre>';

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)
8.3.40.0110.00718.67
8.3.30.0140.00019.15
8.3.20.0050.00320.16
8.3.10.0000.00823.71
8.3.00.0030.00519.25
8.2.170.0110.00422.96
8.2.160.0070.00720.13
8.2.150.0080.00024.18
8.2.140.0070.00024.66
8.2.130.0040.00426.16
8.2.120.0050.00322.13
8.2.110.0060.00320.52
8.2.100.0080.00317.91
8.2.90.0060.00319.18
8.2.80.0040.00417.97
8.2.70.0040.00417.75
8.2.60.0000.01217.80
8.2.50.0100.00018.07
8.2.40.0000.00819.94
8.2.30.0000.00818.00
8.2.20.0000.00717.78
8.2.10.0040.00418.11
8.2.00.0040.00417.69
8.1.270.0080.00023.99
8.1.260.0050.00326.35
8.1.250.0000.00728.09
8.1.240.0230.00023.95
8.1.230.0040.00722.07
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0030.00617.35
8.1.190.0080.00417.25
8.1.180.0040.00418.10
8.1.170.0050.00318.57
8.1.160.0000.00722.04
8.1.150.0080.00018.62
8.1.140.0040.00417.43
8.1.130.0000.00717.92
8.1.120.0000.00717.36
8.1.110.0040.00417.43
8.1.100.0040.00417.33
8.1.90.0040.00417.35
8.1.80.0000.00717.49
8.1.70.0040.00417.35
8.1.60.0070.00417.62
8.1.50.0040.00417.39
8.1.40.0000.00717.53
8.1.30.0080.00017.55
8.1.20.0040.00417.66
8.1.10.0040.00417.39
8.1.00.0000.00717.42
8.0.300.0000.00718.77
8.0.290.0040.00417.05
8.0.280.0040.00418.48
8.0.270.0000.00717.20
8.0.260.0000.00817.19
8.0.250.0030.00416.92
8.0.240.0000.00717.05
8.0.230.0000.00716.89
8.0.220.0040.00416.88
8.0.210.0030.00516.92
8.0.200.0070.00017.03
8.0.190.0060.00317.01
8.0.180.0070.00016.97
8.0.170.0040.00417.00
8.0.160.0000.00716.89
8.0.150.0030.00316.86
8.0.140.0070.00016.91
8.0.130.0000.00613.39
8.0.120.0050.00316.82
8.0.110.0000.00716.84
8.0.100.0040.00416.97
8.0.90.0000.00717.07
8.0.80.0040.01116.87
8.0.70.0000.00716.99
8.0.60.0000.00816.91
8.0.50.0040.00416.77
8.0.30.0090.00917.04
8.0.20.0110.00817.40
8.0.10.0000.00817.00
8.0.00.0040.01616.68
7.4.330.0030.00315.00
7.4.320.0070.00016.44
7.4.300.0070.00016.42
7.4.290.0070.00016.43
7.4.280.0030.00516.55
7.4.270.0000.00816.55
7.4.260.0030.00316.50
7.4.250.0080.00016.36
7.4.240.0050.00216.54
7.4.230.0040.00416.48
7.4.220.0150.00316.64
7.4.210.0080.00816.49
7.4.200.0030.00316.65
7.4.190.0020.00516.68
7.4.160.0130.00616.49
7.4.150.0150.00317.40
7.4.140.0100.00717.86
7.4.130.0100.01016.60
7.4.120.0140.00816.49
7.4.110.0140.00416.50
7.4.100.0150.00316.20
7.4.90.0140.00316.51
7.4.80.0070.01019.39
7.4.70.0090.00616.38
7.4.60.0070.01516.12
7.4.50.0040.00416.51
7.4.40.0000.01616.54
7.4.30.0110.01116.48
7.4.00.0070.00714.69
7.3.330.0030.00313.13
7.3.320.0000.00613.13
7.3.310.0000.00716.07
7.3.300.0000.00716.18
7.3.290.0030.01016.19
7.3.280.0070.00916.22
7.3.270.0160.00817.40
7.3.260.0130.00316.40
7.3.250.0100.01216.26
7.3.240.0050.01016.16
7.3.230.0070.01016.49
7.3.210.0170.00016.43
7.3.200.0090.00919.39
7.3.190.0110.01016.61
7.3.180.0070.01516.40
7.3.170.0090.00616.27
7.3.160.0150.00016.32
7.3.120.0090.00314.89
7.2.330.0030.01516.54
7.2.320.0090.00916.45
7.2.310.0030.01316.30
7.2.300.0040.01216.52
7.2.290.0110.00716.61
7.2.60.0030.01216.73
7.2.00.0070.00719.43
7.1.200.0070.00715.73
7.1.100.0070.00717.81
7.1.70.0090.00617.20
7.1.60.0060.01819.46
7.1.50.0100.00316.94
7.1.00.0000.08022.31
7.0.200.0030.00316.30
7.0.140.0030.07022.02
7.0.110.0070.04719.99
7.0.100.0000.08319.99
7.0.90.0070.08319.91
7.0.80.0000.08719.91
7.0.70.0030.05319.91
7.0.60.0070.08019.97
7.0.50.0130.08019.85
7.0.40.0130.04319.70
7.0.30.0070.04319.88
7.0.20.0100.03319.65
7.0.10.0000.04319.70
7.0.00.0000.04019.74
5.6.280.0130.06321.11
5.6.260.0100.07020.73
5.6.250.0130.07320.64
5.6.240.0070.07320.56
5.6.230.0130.07020.55
5.6.220.0130.07020.45
5.6.210.0030.07720.64
5.6.200.0100.07320.69
5.6.190.0130.06320.64
5.6.180.0030.04320.46
5.6.170.0100.03720.65
5.6.160.0030.04320.61
5.6.150.0000.04320.55
5.6.140.0130.03320.67
5.6.130.0070.04020.61
5.6.120.0030.04020.60
5.6.110.0070.04020.43
5.6.100.0030.06020.54
5.6.90.0000.04320.56
5.6.80.0070.03719.96
5.6.70.0130.06719.95
5.6.60.0000.04319.98
5.6.50.0070.04719.99
5.6.40.0000.04020.00
5.6.30.0100.05720.04
5.6.20.0100.03319.91
5.6.10.0070.03719.90
5.6.00.0030.04019.99
5.5.380.0130.04020.53
5.5.370.0130.03720.51
5.5.360.0030.08320.54
5.5.350.0000.08320.15
5.5.340.0200.07320.96
5.5.330.0100.04720.77
5.5.320.0030.04320.94
5.5.310.0030.05720.80
5.5.300.0030.04020.95
5.5.290.0100.03720.88
5.5.280.0070.04020.88
5.5.270.0000.04720.87
5.5.260.0000.04720.76
5.5.250.0100.06720.61
5.5.240.0030.03720.08
5.5.230.0070.04720.36
5.5.220.0000.04020.26
5.5.210.0170.05020.32
5.5.200.0000.04020.23
5.5.190.0030.04020.33
5.5.180.0070.03720.35
5.5.160.0070.03720.15
5.5.150.0130.02720.24
5.5.140.0030.03720.24
5.5.130.0070.03720.14
5.5.120.0030.04320.32
5.5.110.0130.03020.11
5.5.100.0100.03020.22
5.5.90.0070.06320.24
5.5.80.0070.03019.97
5.5.70.0070.03720.23
5.5.60.0130.07020.13
5.5.50.0130.05020.22
5.5.40.0030.03319.99
5.5.30.0030.03320.23
5.5.20.0100.07020.22
5.5.10.0070.07720.10
5.5.00.0070.06019.95
5.4.450.0070.04319.58
5.4.440.0000.04319.27
5.4.430.0030.04019.48
5.4.420.0070.07319.25
5.4.410.0000.04019.27
5.4.400.0000.07018.93
5.4.390.0100.03719.03
5.4.380.0030.04019.02
5.4.370.0030.03719.09
5.4.360.0070.03319.03
5.4.350.0000.04019.00
5.4.340.0030.03718.95
5.4.320.0030.03719.27
5.4.310.0000.04019.27
5.4.300.0000.05319.07
5.4.290.0070.03719.19
5.4.280.0000.04018.98
5.4.270.0030.03718.95
5.4.260.0000.04019.09
5.4.250.0000.04319.11
5.4.240.0000.04019.11
5.4.230.0070.03718.92
5.4.220.0070.03719.00
5.4.210.0030.04318.99
5.4.200.0070.04019.11
5.4.190.0000.08319.23
5.4.180.0070.03318.92
5.4.170.0030.07019.15
5.4.160.0100.07018.95
5.4.150.0070.04319.22
5.4.140.0000.08016.32
5.4.130.0000.08016.48
5.4.120.0100.06316.41
5.4.110.0030.07316.29
5.4.100.0070.07316.50
5.4.90.0070.04716.38
5.4.80.0030.04316.46
5.4.70.0070.04716.48
5.4.60.0100.05016.50
5.4.50.0070.07016.50
5.4.40.0130.06316.55
5.4.30.0030.07716.25
5.4.20.0200.06016.05
5.4.10.0070.06716.35
5.4.00.0130.05015.81
5.3.290.0000.04014.59
5.3.280.0030.03714.59
5.3.270.0030.08014.63
5.3.260.0070.07014.52
5.3.250.0030.07314.60
5.3.240.0030.06314.53
5.3.230.0030.08014.59
5.3.220.0100.07314.49
5.3.210.0100.04714.51
5.3.200.0070.07314.43
5.3.190.0000.08314.51
5.3.180.0100.07014.44
5.3.170.0170.05314.42
5.3.160.0070.07314.50
5.3.150.0170.06014.64
5.3.140.0070.07714.48
5.3.130.0030.04314.57
5.3.120.0100.07314.38
5.3.110.0070.08014.48
5.3.100.0070.07313.97
5.3.90.0030.08013.88
5.3.80.0100.07313.91
5.3.70.0100.03713.80
5.3.60.0170.06713.86
5.3.50.0000.08013.87
5.3.40.0070.03714.02
5.3.30.0000.04013.98
5.3.20.0030.07013.55
5.3.10.0070.06713.59
5.3.00.0130.06313.46
5.2.170.0000.03311.50
5.2.160.0030.06311.50
5.2.150.0070.06311.50
5.2.140.0000.06711.50
5.2.130.0070.05711.50
5.2.120.0030.06311.50
5.2.110.0070.06011.50
5.2.100.0070.06011.50
5.2.90.0070.06011.50
5.2.80.0030.06711.50
5.2.70.0030.06711.50
5.2.60.0030.06311.50
5.2.50.0070.05011.50
5.2.40.0130.04711.50
5.2.30.0030.06011.50
5.2.20.0030.06011.50
5.2.10.0070.04711.50
5.2.00.0100.05311.50
5.1.60.0070.04311.50
5.1.50.0030.05311.50
5.1.40.0070.05011.50
5.1.30.0000.06011.50
5.1.20.0030.04711.50
5.1.10.0000.05711.50
5.1.00.0000.05311.50
5.0.50.0030.03311.50
5.0.40.0030.04711.50
5.0.30.0000.05711.50
5.0.20.0030.04011.50
5.0.10.0000.04711.50
5.0.00.0070.06311.50
4.4.90.0030.02311.50
4.4.80.0000.03711.50
4.4.70.0000.03711.50
4.4.60.0030.03311.50
4.4.50.0000.02711.50
4.4.40.0030.04011.50
4.4.30.0000.04011.50
4.4.20.0000.03711.50
4.4.10.0000.03311.50
4.4.00.0070.04711.50
4.3.110.0070.03311.50
4.3.100.0000.03311.50
4.3.90.0000.03311.50
4.3.80.0030.04711.50
4.3.70.0030.03311.50
4.3.60.0030.03711.50
4.3.50.0070.03011.50
4.3.40.0000.05311.50
4.3.30.0030.03311.50
4.3.20.0030.03711.50
4.3.10.0000.03711.50
4.3.00.0000.03311.50

preferences:
45.47 ms | 400 KiB | 5 Q