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)
8.3.60.0070.00716.75
8.3.50.0110.01221.99
8.3.40.0070.01018.71
8.3.30.0070.00718.63
8.3.20.0100.00320.21
8.3.10.0040.00423.65
8.3.00.0030.00619.38
8.2.180.0140.00316.38
8.2.170.0100.01022.96
8.2.160.0090.00620.38
8.2.150.0040.00424.18
8.2.140.0000.00724.66
8.2.130.0040.00417.50
8.2.120.0080.00026.35
8.2.110.0030.00622.08
8.2.100.0040.00817.80
8.2.90.0050.00319.28
8.2.80.0070.00217.97
8.2.70.0040.00417.50
8.2.60.0060.00317.93
8.2.50.0000.00818.07
8.2.40.0100.00019.28
8.2.30.0040.00420.64
8.2.20.0070.00417.59
8.2.10.0080.00018.06
8.2.00.0050.00217.98
8.1.280.0140.00425.92
8.1.270.0040.00723.79
8.1.260.0040.00428.09
8.1.250.0050.00328.09
8.1.240.0130.01022.47
8.1.230.0000.01117.79
8.1.220.0000.00817.74
8.1.210.0080.00018.77
8.1.200.0000.00817.35
8.1.190.0040.00417.23
8.1.180.0000.00918.10
8.1.170.0060.00318.79
8.1.160.0080.00021.87
8.1.150.0060.00318.88
8.1.140.0040.00419.60
8.1.130.0020.00517.63
8.1.120.0070.00017.48
8.1.110.0070.00017.34
8.1.100.0030.00317.46
8.1.90.0000.00717.49
8.1.80.0050.00317.41
8.1.70.0000.00717.26
8.1.60.0060.00317.60
8.1.50.0050.00517.55
8.1.40.0040.00417.47
8.1.30.0000.00917.63
8.1.20.0060.00317.57
8.1.10.0090.00017.49
8.1.00.0030.00517.40
8.0.300.0070.00018.77
8.0.290.0050.00216.75
8.0.280.0040.00418.33
8.0.270.0070.00017.26
8.0.260.0030.00317.29
8.0.250.0030.00316.97
8.0.240.0070.00016.83
8.0.230.0030.00316.96
8.0.220.0000.00716.92
8.0.210.0030.00516.92
8.0.200.0030.00316.95
8.0.190.0030.00516.94
8.0.180.0000.00816.87
8.0.170.0080.00016.87
8.0.160.0030.00516.99
8.0.150.0000.00816.73
8.0.140.0030.00316.68
8.0.130.0060.00013.27
8.0.120.0040.00416.77
8.0.110.0050.00316.86
8.0.100.0040.00416.78
8.0.90.0050.00316.92
8.0.80.0060.00916.88
8.0.70.0000.00716.75
8.0.60.0020.00516.83
8.0.50.0040.00416.84
8.0.30.0100.00617.11
8.0.20.0110.00917.40
8.0.10.0070.00017.05
8.0.00.0110.00516.80
7.4.330.0000.00516.66
7.4.320.0070.00016.61
7.4.300.0040.00416.50
7.4.290.0080.00016.35
7.4.280.0000.00816.49
7.4.270.0030.00316.55
7.4.260.0030.00316.47
7.4.250.0030.00516.53
7.4.240.0000.00716.52
7.4.230.0000.00716.59
7.4.220.0030.01716.45
7.4.210.0090.00616.54
7.4.200.0000.00816.33
7.4.160.0090.00616.50
7.4.150.0160.00717.40
7.4.140.0150.00717.86
7.4.130.0060.01216.50
7.4.120.0070.01016.48
7.4.110.0130.00316.38
7.4.100.0130.01016.42
7.4.90.0120.00616.59
7.4.80.0110.00719.39
7.4.70.0060.01216.62
7.4.60.0160.00016.42
7.4.50.0070.00416.47
7.4.40.0100.00716.54
7.4.30.0100.00716.73
7.4.00.0030.01314.80
7.3.330.0000.00613.19
7.3.320.0050.00013.30
7.3.310.0000.00716.20
7.3.300.0030.00316.34
7.3.290.0030.00316.34
7.3.280.0040.01116.33
7.3.270.0160.00617.40
7.3.260.0060.01516.33
7.3.250.0150.00216.38
7.3.240.0100.00716.33
7.3.230.0100.00716.52
7.3.210.0100.00716.33
7.3.200.0060.00916.22
7.3.190.0060.01016.39
7.3.180.0120.00416.37
7.3.170.0100.00616.36
7.3.160.0050.01116.46
7.2.330.0070.01116.51
7.2.320.0080.00816.50
7.2.310.0090.00916.53
7.2.300.0060.01116.66
7.2.290.0100.01016.40
7.2.60.0080.00516.48
7.2.00.0000.01219.17
7.1.200.0040.00315.76
7.1.100.0000.01218.11
7.1.70.0070.00017.28
7.1.60.0000.01217.26
7.1.50.0000.01116.95
7.1.40.0080.00416.74
7.1.30.0040.00716.73
7.1.20.0030.00716.80
7.1.10.0000.00916.63
7.1.00.0040.00416.70
7.0.200.0000.00716.86
7.0.190.0040.00416.56
7.0.180.0040.00416.25
7.0.170.0030.00516.51
7.0.160.0050.00316.06
7.0.150.0030.00616.06
7.0.140.0000.00816.36
7.0.130.0060.00316.58
7.0.120.0000.00816.70
7.0.110.0020.00516.27
7.0.100.0000.00816.33
7.0.90.0040.00416.39
7.0.80.0070.00316.57
7.0.70.0040.00416.30
7.0.60.0040.00415.99
7.0.50.0000.01116.42
7.0.40.0000.01115.66
7.0.30.0050.00315.66
7.0.20.0030.00615.66
7.0.10.0000.00715.66
7.0.00.0000.01015.66
5.6.300.0070.04820.74
5.6.290.0130.04020.86
5.6.280.0030.04320.99
5.6.270.0100.03620.97
5.6.260.0070.03921.08
5.6.250.0000.04721.05
5.6.240.0030.04920.86
5.6.230.0000.04920.93
5.6.220.0040.04220.77
5.6.210.0030.04220.59
5.6.200.0100.03621.02
5.6.190.0100.04120.95
5.6.180.0030.04821.05
5.6.170.0270.04120.86
5.6.160.0070.06520.93
5.6.150.0100.04620.69
5.6.140.0000.04620.95
5.6.130.0100.03520.81
5.6.120.0030.04520.92
5.6.110.0030.04920.96
5.6.100.0030.04620.91
5.6.90.0070.04120.84
5.6.80.0090.04720.25
5.6.70.0100.04020.19
5.6.60.0100.03920.36
5.6.50.0090.04120.31
5.6.40.0150.04720.18
5.6.30.0060.04520.35
5.6.20.0160.03620.39
5.6.10.0060.04120.21
5.6.00.0030.04620.11
5.5.380.0030.05017.47
5.5.370.0100.04017.56
5.5.360.0030.04217.45
5.5.350.0070.03717.44
5.5.340.0070.04817.94
5.5.330.0070.03918.03
5.5.320.0000.04417.70
5.5.310.0000.04718.07
5.5.300.0000.04417.74
5.5.290.0030.04217.94
5.5.280.0070.04217.86
5.5.270.0000.04718.02
5.5.260.0030.04717.85
5.5.250.0130.03517.92
5.5.240.0000.05117.09
5.5.230.0030.04417.42
5.5.220.0000.04617.31
5.5.210.0030.04217.32
5.5.200.0060.04217.42
5.5.190.0000.04417.37
5.5.180.0110.04017.42
5.5.160.0100.03617.32
5.5.150.0000.04417.46
5.5.140.0070.03517.32
5.5.130.0000.04517.32
5.5.120.0030.04017.18
5.5.110.0000.04617.36
5.5.100.0030.04416.98
5.5.90.0070.04017.22
5.5.80.0040.04017.27
5.5.70.0000.04617.20
5.5.60.0000.04117.30
5.5.50.0040.03617.10
5.5.40.0030.04117.36
5.5.30.0000.04217.21
5.5.20.0060.03816.98
5.5.10.0060.03517.27
5.5.00.0040.03717.18
5.4.450.0030.04319.36
5.4.440.0030.04519.44
5.4.430.0200.05019.24
5.4.420.0060.03919.55
5.4.410.0070.04119.18
5.4.400.0130.04319.08
5.4.390.0100.04519.23
5.4.380.0060.03818.95
5.4.370.0120.03519.07
5.4.360.0000.04919.03
5.4.350.0030.04018.98
5.4.340.0120.03719.07
5.4.320.0070.03719.03
5.4.310.0120.03019.00
5.4.300.0070.04019.20
5.4.290.0030.04019.06
5.4.280.0000.04818.89
5.4.270.0040.04018.92
5.4.260.0000.04519.20
5.4.250.0100.03319.07
5.4.240.0030.04018.98
5.4.230.0040.03618.94
5.4.220.0030.04119.05
5.4.210.0040.03718.92
5.4.200.0000.04419.13
5.4.190.0040.04019.05
5.4.180.0060.03818.89
5.4.170.0060.03419.15
5.4.160.0030.03919.06
5.4.150.0160.04219.19
5.4.140.0000.04116.77
5.4.130.0040.03516.67
5.4.120.0030.03516.49
5.4.110.0130.03716.42
5.4.100.0070.03016.61
5.4.90.0070.04216.49
5.4.80.0030.03416.69
5.4.70.0030.03316.71
5.4.60.0000.03816.68
5.4.50.0000.03716.71
5.4.40.0030.03416.68
5.4.30.0030.03316.56
5.4.20.0100.02616.52
5.4.10.0000.04016.61
5.4.00.0030.06916.13
5.3.290.0170.03015.66
5.3.280.0030.04015.66
5.3.270.0000.04315.66
5.3.260.0060.04115.66
5.3.250.0060.03515.66
5.3.240.0090.02815.66
5.3.230.0030.04015.66
5.3.220.0040.03515.66
5.3.210.0040.03915.66
5.3.200.0000.03815.66
5.3.190.0000.04315.66
5.3.180.0030.03715.66
5.3.170.0040.03515.66
5.3.160.0030.03915.66
5.3.150.0000.03915.66
5.3.140.0000.03915.66
5.3.130.0000.03915.66
5.3.120.0000.04015.66
5.3.110.0030.06115.66
5.3.100.0040.03915.66
5.3.90.0040.04215.66
5.3.80.0060.03715.66
5.3.70.0000.04015.66
5.3.60.0000.03815.66
5.3.50.0030.03715.66
5.3.40.0030.03515.66
5.3.30.0030.04215.66
5.3.20.0000.04015.66
5.3.10.0060.02915.66
5.3.00.0030.06915.66
5.2.170.0030.03015.66
5.2.160.0000.03115.66
5.2.150.0000.03215.66
5.2.140.0000.03215.66
5.2.130.0030.03715.66
5.2.120.0030.02915.66
5.2.110.0030.04215.66
5.2.100.0000.03515.66
5.2.90.0090.03115.66
5.2.80.0030.02915.66
5.2.70.0000.03515.66
5.2.60.0040.03215.66
5.2.50.0000.03215.66
5.2.40.0070.02615.66
5.2.30.0000.03215.66
5.2.20.0070.02415.66
5.2.10.0030.03015.66
5.2.00.0060.02615.66
5.1.60.0060.02215.66
5.1.50.0000.02615.66
5.1.40.0000.02815.66
5.1.30.0060.02415.66
5.1.20.0060.02515.66
5.1.10.0030.02615.66
5.1.00.0000.03015.66
5.0.50.0030.01915.66
5.0.40.0030.02015.66
5.0.30.0040.03015.66
5.0.20.0030.02015.66
5.0.10.0000.02115.66
5.0.00.0000.03315.66
4.4.90.0000.01915.66
4.4.80.0000.01815.66
4.4.70.0000.01815.66
4.4.60.0000.01815.66
4.4.50.0030.01415.66
4.4.40.0000.02515.66
4.4.30.0030.01315.66
4.4.20.0000.01715.66
4.4.10.0000.01615.66
4.4.00.0070.02015.66
4.3.110.0030.03715.66
4.3.100.0000.01615.66
4.3.90.0030.01415.66
4.3.80.0030.02315.66
4.3.70.0000.01715.66
4.3.60.0000.02015.66
4.3.50.0000.01715.66
4.3.40.0000.02615.66
4.3.30.0000.01615.66
4.3.20.0000.01715.66
4.3.10.0000.02515.66
4.3.00.0030.01415.66

preferences:
54.4 ms | 401 KiB | 5 Q