3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'b'; $$a = 'c'; var_dump($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)
8.3.60.0090.01216.63
8.3.50.0130.01022.12
8.3.40.0070.00718.84
8.3.30.0110.00418.59
8.3.20.0000.00721.91
8.3.10.0030.00620.35
8.3.00.0040.00421.89
8.2.180.0110.00425.92
8.2.170.0070.00718.74
8.2.160.0000.01522.96
8.2.150.0050.00324.18
8.2.140.0000.00824.66
8.2.130.0050.00226.16
8.2.120.0000.00819.95
8.2.110.0090.00020.39
8.2.100.0080.00417.72
8.2.90.0000.00818.22
8.2.80.0040.00418.98
8.2.70.0050.00317.93
8.2.60.0040.00417.80
8.2.50.0040.00418.22
8.2.40.0050.00320.84
8.2.30.0040.00419.18
8.2.20.0040.00418.12
8.2.10.0080.00017.93
8.2.00.0000.00717.55
8.1.280.0070.00725.92
8.1.270.0090.00023.96
8.1.260.0000.00826.35
8.1.250.0000.00828.09
8.1.240.0030.00622.65
8.1.230.0110.00021.04
8.1.220.0030.00617.74
8.1.210.0030.00618.84
8.1.200.0040.00417.35
8.1.190.0000.00817.23
8.1.180.0000.00718.10
8.1.170.0060.00318.64
8.1.160.0040.00422.04
8.1.150.0000.00718.89
8.1.140.0030.00619.55
8.1.130.0030.00317.56
8.1.120.0100.00017.40
8.1.110.0040.00417.46
8.1.100.0070.00017.46
8.1.90.0040.00417.45
8.1.80.0030.00317.48
8.1.70.0040.00417.45
8.1.60.0060.00317.62
8.1.50.0040.00417.48
8.1.40.0030.00617.41
8.1.30.0030.00617.54
8.1.20.0000.00817.61
8.1.10.0080.00317.45
8.1.00.0040.00417.36
8.0.300.0000.00720.23
8.0.290.0080.00016.63
8.0.280.0000.00718.54
8.0.270.0030.00316.86
8.0.260.0000.00717.29
8.0.250.0020.00516.95
8.0.240.0000.00616.88
8.0.230.0000.00716.84
8.0.220.0040.00416.75
8.0.210.0000.00716.77
8.0.200.0000.00616.80
8.0.190.0050.00316.90
8.0.180.0040.00416.91
8.0.170.0030.00516.89
8.0.160.0040.00416.91
8.0.150.0030.00316.79
8.0.140.0000.00716.73
8.0.130.0050.00013.39
8.0.120.0000.00816.77
8.0.110.0060.00316.94
8.0.100.0040.00416.70
8.0.90.0040.00416.73
8.0.80.0110.00416.93
8.0.70.0000.00816.73
8.0.60.0040.00416.84
8.0.50.0000.00716.74
8.0.30.0090.00916.99
8.0.20.0080.01117.40
8.0.10.0040.00416.82
8.0.00.0100.00716.53
7.4.330.0000.00415.21
7.4.320.0070.00016.57
7.4.300.0030.00316.49
7.4.290.0080.00016.59
7.4.280.0060.00316.54
7.4.270.0030.00316.62
7.4.260.0030.00316.49
7.4.250.0070.00016.53
7.4.240.0000.00816.41
7.4.230.0030.00316.33
7.4.220.0130.00816.40
7.4.210.0090.00616.63
7.4.200.0000.00716.68
7.4.160.0080.00916.41
7.4.150.0100.00717.40
7.4.140.0140.00617.86
7.4.130.0100.00916.40
7.4.120.0040.01516.42
7.4.110.0110.01116.50
7.4.100.0120.00616.50
7.4.90.0100.00716.44
7.4.80.0060.00919.39
7.4.70.0070.01016.56
7.4.60.0090.00616.31
7.4.50.0000.01016.55
7.4.40.0000.01516.57
7.4.30.0030.01316.35
7.4.00.0090.00614.55
7.3.330.0000.00513.03
7.3.320.0000.00513.03
7.3.310.0050.00316.05
7.3.300.0030.00316.21
7.3.290.0030.01316.16
7.3.280.0080.00916.23
7.3.270.0070.01117.40
7.3.260.0110.00616.41
7.3.250.0130.00516.22
7.3.240.0070.01016.18
7.3.230.0090.00916.39
7.3.210.0030.01316.42
7.3.200.0130.00316.24
7.3.190.0080.00816.28
7.3.180.0090.00916.26
7.3.170.0080.00816.14
7.3.160.0160.00616.36
7.2.330.0070.01016.29
7.2.320.0120.00916.63
7.2.310.0100.00616.44
7.2.300.0060.01016.31
7.2.290.0040.01316.64
7.2.60.0100.00316.80
7.2.00.0040.00819.39
7.1.200.0030.00615.84
7.1.100.0070.00418.09
7.1.70.0000.01117.08
7.1.60.0030.01017.03
7.1.50.0230.01334.88
7.1.00.0070.07322.34
7.0.200.0280.00714.67
7.0.120.0030.07321.96
7.0.110.0070.07322.06
7.0.100.0030.07322.00
7.0.90.0070.07322.19
7.0.80.0100.05722.00
7.0.70.0030.07322.18
7.0.60.0030.06721.71
7.0.50.0030.07322.16
7.0.40.0000.07322.17
7.0.30.0000.07722.06
7.0.20.0070.07022.05
7.0.10.0000.06722.19
7.0.00.0030.07322.04
5.6.260.0070.06720.86
5.6.250.0100.06721.03
5.6.240.0000.08020.86
5.6.230.0030.07721.00
5.6.220.0030.07320.82
5.6.210.0030.06020.95
5.6.200.0000.08021.02
5.6.190.0100.07021.08
5.6.180.0030.07321.03
5.6.170.0000.07720.96
5.6.160.0100.06721.03
5.6.150.0030.07021.02
5.6.140.0000.07720.92
5.6.130.0070.06321.06
5.6.120.0130.06020.82
5.6.110.0070.07021.06
5.6.100.0000.08020.91
5.6.90.0130.05721.01
5.6.80.0030.07020.41
5.6.70.0030.07020.39
5.6.60.0030.07320.42
5.6.50.0030.07020.43
5.6.40.0070.06320.35
5.6.30.0000.07320.43
5.6.20.0030.07320.19
5.6.10.0070.06020.17
5.6.00.0000.06720.12

preferences:
55.52 ms | 401 KiB | 5 Q