3v4l.org

run code in 300+ PHP versions simultaneously
<?php $b = [1, 2, 3]; foreach($b ?: [] as &$v){ $v = $v*2; unset($v); } 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)
8.3.60.0110.00716.63
8.3.50.0150.00322.05
8.3.40.0140.00718.76
8.3.30.0070.00718.62
8.3.20.0090.00020.26
8.3.10.0050.00323.48
8.3.00.0050.00319.13
8.2.180.0150.00318.04
8.2.170.0030.01022.96
8.2.160.0030.01620.39
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0090.00017.38
8.2.120.0040.00426.35
8.2.110.0030.00620.39
8.2.100.0060.00617.93
8.2.90.0030.00619.25
8.2.80.0060.00317.97
8.2.70.0070.00517.37
8.2.60.0040.00417.80
8.2.50.0040.00418.07
8.2.40.0060.00319.37
8.2.30.0000.00820.52
8.2.20.0040.00417.67
8.2.10.0040.00418.11
8.2.00.0030.00318.01
8.1.280.0120.00325.92
8.1.270.0030.00524.04
8.1.260.0080.00028.09
8.1.250.0050.00228.09
8.1.240.0150.00720.70
8.1.230.0100.00517.79
8.1.220.0000.00817.79
8.1.210.0030.00618.77
8.1.200.0040.00417.35
8.1.190.0000.00817.36
8.1.180.0090.00018.10
8.1.170.0030.00618.49
8.1.160.0070.00021.93
8.1.150.0070.00018.81
8.1.140.0040.00419.52
8.1.130.0040.00417.70
8.1.120.0050.00317.45
8.1.110.0040.00417.34
8.1.100.0050.00317.27
8.1.90.0030.00317.34
8.1.80.0060.00317.39
8.1.70.0040.00417.34
8.1.60.0060.00317.61
8.1.50.0000.00817.53
8.1.40.0030.00517.42
8.1.30.0050.00317.71
8.1.20.0040.00417.60
8.1.10.0040.00417.49
8.1.00.0060.00617.35
8.0.300.0030.00618.77
8.0.290.0000.00916.75
8.0.280.0040.00418.46
8.0.270.0070.00017.25
8.0.260.0030.00617.18
8.0.250.0000.00816.88
8.0.240.0000.00716.89
8.0.230.0090.00016.85
8.0.220.0070.00016.77
8.0.210.0030.00316.89
8.0.200.0040.00416.90
8.0.190.0000.00816.85
8.0.180.0070.00016.91
8.0.170.0050.00316.81
8.0.160.0070.00016.93
8.0.150.0000.00916.71
8.0.140.0030.00316.75
8.0.130.0000.00613.37
8.0.120.0040.00416.86
8.0.110.0080.00016.77
8.0.100.0000.00716.98
8.0.90.0040.00416.76
8.0.80.0110.00416.75
8.0.70.0040.00416.75
8.0.60.0050.00316.78
8.0.50.0070.00016.89
8.0.30.0100.00717.08
8.0.20.0110.00817.40
8.0.10.0040.00416.81
8.0.00.0080.00916.65
7.4.330.0000.00516.79
7.4.320.0000.00716.58
7.4.300.0030.00316.59
7.4.290.0000.00716.48
7.4.280.0080.00016.62
7.4.270.0000.00716.48
7.4.260.0000.00816.58
7.4.250.0040.00416.45
7.4.240.0040.00416.52
7.4.230.0070.00016.61
7.4.220.0110.00716.62
7.4.210.0050.01116.57
7.4.200.0070.00016.39
7.4.160.0070.01016.60
7.4.150.0070.01017.40
7.4.140.0100.01117.86
7.4.130.0110.01016.44
7.4.120.0160.00316.54
7.4.110.0080.01216.45
7.4.100.0030.01316.55
7.4.90.0100.00716.53
7.4.80.0060.01219.39
7.4.70.0170.00716.43
7.4.60.0130.00716.32
7.4.50.0060.00616.47
7.4.40.0140.00316.36
7.4.30.0070.01016.29
7.4.00.0080.00614.80
7.3.330.0050.00013.22
7.3.320.0000.00513.02
7.3.310.0070.00016.30
7.3.300.0000.00616.30
7.3.290.0030.00316.26
7.3.280.0080.00716.29
7.3.270.0100.01017.40
7.3.260.0060.01216.39
7.3.250.0070.01016.30
7.3.240.0110.00816.47
7.3.230.0110.00716.40
7.3.210.0100.00716.52
7.3.200.0160.00416.43
7.3.190.0080.01316.30
7.3.180.0070.01116.54
7.3.170.0140.00316.37
7.3.160.0030.01316.50
7.3.120.0100.01014.91
7.3.110.0040.01414.75
7.3.100.0120.00314.75
7.3.90.0030.01014.65
7.3.80.0090.00615.02
7.3.70.0040.00714.78
7.3.60.0040.01114.87
7.3.50.0100.00314.91
7.3.40.0030.00614.99
7.3.30.0030.00714.89
7.3.20.0170.00016.38
7.3.10.0050.00916.65
7.3.00.0060.00916.55
7.2.330.0070.01016.68
7.2.320.0140.00316.54
7.2.310.0160.00016.77
7.2.300.0000.01716.68
7.2.290.0090.00916.77
7.2.250.0070.01015.08
7.2.240.0000.02015.20
7.2.230.0100.01015.20
7.2.220.0040.01114.90
7.2.210.0060.00915.10
7.2.200.0000.01214.86
7.2.190.0090.00615.04
7.2.180.0130.00615.08
7.2.170.0030.01315.07
7.2.130.0070.01016.86
7.2.120.0000.01416.86
7.2.110.0110.00416.81
7.2.100.0070.00716.80
7.2.90.0100.00617.00
7.2.80.0030.00616.68
7.2.70.0090.00616.78
7.2.60.0070.00716.92
7.2.50.0030.00716.74
7.2.40.0070.00716.81
7.2.30.0040.01116.94
7.2.20.0100.00017.04
7.2.10.0040.01417.09
7.2.00.0050.00818.06
7.1.330.0030.01315.80
7.1.320.0060.00615.91
7.1.310.0070.01015.76
7.1.300.0060.01215.82
7.1.290.0030.00615.73
7.1.280.0030.00715.55
7.1.270.0060.00315.80
7.1.260.0080.00615.96
7.1.250.0000.01415.64
7.1.200.0050.00515.82
7.1.100.0070.00718.13
7.1.70.0000.00716.93
7.1.60.0070.01419.48
7.1.50.0040.01217.11
7.1.00.0000.07722.36
7.0.200.0400.00314.38
7.0.70.0070.04021.76
7.0.60.0100.08021.68
7.0.50.0070.08322.14
7.0.40.0130.07720.18
7.0.30.0100.08020.18
7.0.20.0070.08320.15
7.0.10.0230.06720.10
7.0.00.0030.04020.13
5.6.280.0100.05720.90
5.6.220.0030.04720.67
5.6.210.0030.08020.66
5.6.200.0070.06021.02
5.6.190.0030.06721.03
5.6.180.0070.08321.04
5.6.170.0030.08721.04
5.6.160.0030.05021.00
5.6.150.0030.08321.04
5.6.140.0000.05321.06
5.6.130.0000.08720.94
5.6.120.0100.08721.04
5.6.110.0030.07321.15
5.6.100.0100.08321.12
5.6.90.0070.09020.91
5.6.80.0030.08020.33
5.6.70.0000.08320.39
5.6.60.0000.08020.39
5.6.50.0100.08020.45
5.6.40.0030.06020.37
5.6.30.0000.08020.38
5.6.20.0000.07020.37
5.6.10.0100.07720.48
5.6.00.0070.04320.43
5.5.360.0070.08320.34
5.5.350.0100.07720.31
5.5.340.0100.08320.91
5.5.330.0000.09020.76
5.5.320.0070.08020.92
5.5.310.0070.08320.90
5.5.300.0070.07020.82
5.5.290.0100.05720.89
5.5.280.0000.08720.64
5.5.270.0030.05720.82
5.5.260.0030.05320.87
5.5.250.0030.08320.62
5.5.240.0070.08020.18
5.5.230.0070.07320.24
5.5.220.0030.06720.21
5.5.210.0070.07720.14
5.5.200.0070.07720.28
5.5.190.0030.08020.28
5.5.180.0030.06720.12
5.5.160.0030.08020.10
5.5.150.0000.08720.14
5.5.140.0130.07020.12
5.5.130.0000.08020.07
5.5.120.0070.07020.25
5.5.110.0000.04320.25
5.5.100.0030.08020.10
5.5.90.0070.05720.07
5.5.80.0030.04020.14
5.5.70.0100.07320.13
5.5.60.0170.06020.08
5.5.50.0000.04320.11
5.5.40.0000.08020.13
5.5.30.0130.07320.14
5.5.20.0000.08720.14
5.5.10.0100.07019.97
5.5.00.0070.05020.04

preferences:
52.65 ms | 401 KiB | 5 Q