3v4l.org

run code in 300+ PHP versions simultaneously
<?php $list = array('A', 'B', 'C', 'D'); foreach ($list as $key => &$val) { var_dump($val); unset($list[1], $list[2], $list[3]); } echo var_dump($list); var_dump("1e1" == "10");

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)
8.3.60.0070.01318.56
8.3.50.0250.00721.09
8.3.40.0090.00918.60
8.3.30.0070.00720.17
8.3.20.0030.00618.60
8.3.10.0030.00621.18
8.3.00.0080.00019.56
8.2.180.0070.00716.50
8.2.170.0040.01122.96
8.2.160.0140.00020.14
8.2.150.0050.00324.18
8.2.140.0000.00824.66
8.2.130.0070.00026.16
8.2.120.0070.00021.18
8.2.110.0030.00720.39
8.2.100.0000.01217.66
8.2.90.0040.00419.21
8.2.80.0060.00317.97
8.2.70.0050.00317.63
8.2.60.0000.00817.90
8.2.50.0000.00818.07
8.2.40.0040.00419.89
8.2.30.0040.00419.46
8.2.20.0070.00017.63
8.2.10.0040.00417.73
8.2.00.0000.00717.62
8.1.280.0140.00425.92
8.1.270.0040.00423.99
8.1.260.0120.00626.35
8.1.250.0080.00028.09
8.1.240.0090.00022.46
8.1.230.0040.00720.90
8.1.220.0050.00318.77
8.1.210.0080.00018.96
8.1.200.0080.00017.36
8.1.190.0030.00717.53
8.1.180.0040.00418.10
8.1.170.0080.00018.59
8.1.160.0030.00518.79
8.1.150.0040.00418.51
8.1.140.0000.00717.50
8.1.130.0000.00717.80
8.1.120.0000.00817.47
8.1.110.0070.00017.33
8.1.100.0040.00417.45
8.1.90.0000.00717.51
8.1.80.0040.00417.42
8.1.70.0000.00717.41
8.1.60.0060.00617.60
8.1.50.0040.00417.44
8.1.40.0080.00017.55
8.1.30.0000.00817.60
8.1.20.0030.00617.61
8.1.10.0040.00417.56
8.1.00.0050.00317.54
8.0.300.0070.00019.98
8.0.290.0040.00417.18
8.0.280.0030.00318.32
8.0.270.0070.00017.25
8.0.260.0060.00016.73
8.0.250.0040.00417.01
8.0.240.0060.00316.89
8.0.230.0060.00016.84
8.0.220.0050.00316.88
8.0.210.0000.00716.92
8.0.200.0030.00316.95
8.0.190.0040.00416.93
8.0.180.0040.00416.90
8.0.170.0040.00416.77
8.0.160.0000.00716.93
8.0.150.0040.00416.83
8.0.140.0060.00316.86
8.0.130.0060.00013.29
8.0.120.0030.00616.72
8.0.110.0000.00716.77
8.0.100.0020.00516.88
8.0.90.0040.00416.68
8.0.80.0060.01016.89
8.0.70.0040.00416.79
8.0.60.0040.00416.84
8.0.50.0050.00316.79
8.0.30.0110.01017.16
8.0.20.0080.01217.40
8.0.10.0060.00317.05
8.0.00.0090.00816.80
7.4.330.0000.00616.69
7.4.320.0000.00816.43
7.4.300.0060.00016.40
7.4.290.0020.00516.50
7.4.280.0000.00716.52
7.4.270.0000.00616.66
7.4.260.0000.00513.17
7.4.250.0040.00416.55
7.4.240.0000.00716.63
7.4.230.0000.00716.71
7.4.220.0030.01516.52
7.4.210.0080.00916.52
7.4.200.0030.00316.35
7.4.190.0000.00716.56
7.4.160.0040.01216.54
7.4.150.0140.00417.40
7.4.140.0140.00417.86
7.4.130.0080.01116.56
7.4.120.0070.01016.59
7.4.110.0060.01216.65
7.4.100.0070.01716.63
7.4.90.0070.01116.58
7.4.80.0090.01319.39
7.4.70.0070.01116.56
7.4.60.0170.00616.57
7.4.50.0030.00616.52
7.4.40.0120.00022.77
7.4.30.0150.00316.50
7.4.00.0030.01015.01
7.3.330.0050.00013.00
7.3.320.0060.00013.10
7.3.310.0000.00716.09
7.3.300.0030.00316.27
7.3.290.0000.01516.23
7.3.280.0080.01016.28
7.3.270.0100.00717.40
7.3.260.0110.00718.24
7.3.250.0080.01416.40
7.3.240.0130.01016.25
7.3.230.0110.00716.39
7.3.210.0100.00716.67
7.3.200.0070.01019.39
7.3.190.0000.01616.29
7.3.180.0080.01116.63
7.3.170.0040.01216.32
7.3.160.0090.01216.42
7.3.120.0090.00914.95
7.3.110.0060.01214.71
7.3.100.0040.01114.64
7.3.90.0060.00614.57
7.3.80.0030.01414.80
7.3.70.0070.00714.79
7.3.60.0070.00714.89
7.3.50.0000.01414.58
7.3.40.0040.00814.66
7.3.30.0030.00614.82
7.3.20.0000.01216.71
7.3.10.0030.01216.57
7.3.00.0120.00316.55
7.2.330.0160.00316.43
7.2.320.0000.01616.66
7.2.310.0130.01016.75
7.2.300.0060.01516.47
7.2.290.0070.01016.45
7.2.240.0030.01214.89
7.2.230.0030.01315.04
7.2.220.0090.00614.96
7.2.210.0080.00315.26
7.2.200.0000.01315.02
7.2.190.0070.00714.74
7.2.180.0030.01315.23
7.2.170.0040.00714.86
7.2.160.0060.00314.85
7.2.150.0030.01016.87
7.2.140.0030.00917.12
7.2.130.0000.01316.72
7.2.120.0090.00016.61
7.2.110.0000.01216.88
7.2.100.0070.00317.05
7.2.90.0110.00316.96
7.2.80.0070.01017.11
7.2.70.0070.00416.85
7.2.60.0060.00916.88
7.2.50.0030.00916.80
7.2.40.0100.00317.07
7.2.30.0100.00616.95
7.2.20.0090.00016.63
7.2.10.0040.00816.97
7.2.00.0030.01118.13
7.1.330.0040.01215.74
7.1.320.0150.00015.98
7.1.310.0040.00715.84
7.1.300.0070.00715.96
7.1.290.0000.01115.75
7.1.280.0000.01315.69
7.1.270.0000.01315.77
7.1.260.0100.00615.79
7.1.250.0030.00615.83
7.1.200.0000.01115.85
7.1.100.0030.00618.38
7.1.70.0110.00616.80
7.1.60.0100.00717.18
7.1.50.0080.00416.82
7.1.40.0060.01516.60
7.1.30.0140.00616.62
7.1.20.0120.01216.70
7.1.10.0210.00016.57
7.1.00.0040.00416.55
7.0.200.0050.00516.47
7.0.190.0060.00616.65
7.0.180.0100.00516.20
7.0.170.0000.01316.20
7.0.160.0070.01416.22
7.0.150.0100.01316.20
7.0.140.0060.00616.20
7.0.130.0040.01216.38
7.0.120.0050.01416.47
7.0.110.0090.00916.40
7.0.100.0000.02416.20
7.0.90.0040.00816.31
7.0.80.0000.01616.20
7.0.70.0040.01116.23
7.0.60.0050.00516.20
7.0.50.0040.01116.41
7.0.40.0070.01416.20
7.0.30.0000.01016.20
7.0.20.0030.01016.20
7.0.10.0040.00416.20
7.0.00.0100.00616.20
5.6.300.0070.07320.78
5.6.290.0030.04520.99
5.6.280.0030.04820.81
5.6.270.0110.04220.84
5.6.260.0120.07820.84
5.6.250.0070.07521.01
5.6.240.0000.05120.85
5.6.230.0070.08720.80
5.6.220.0100.07920.73
5.6.210.0100.07920.88
5.6.200.0030.08220.81
5.6.190.0070.06420.98
5.6.180.0000.08420.81
5.6.170.0030.06820.67
5.6.160.0070.07220.96
5.6.150.0030.08520.80
5.6.140.0000.05520.66
5.6.130.0030.04120.96
5.6.120.0030.04320.76
5.6.110.0000.04420.66
5.6.100.0260.03620.70
5.6.90.0090.04420.75
5.6.80.0100.03520.31
5.6.70.0030.04020.14
5.6.60.0060.03520.25
5.6.50.0030.03720.32
5.6.40.0070.03720.12
5.6.30.0030.04420.23
5.6.20.0030.03920.14
5.6.10.0030.06420.28
5.6.00.0130.07020.21
5.5.380.0070.06617.47
5.5.370.0090.03517.61
5.5.360.0100.03517.43
5.5.350.0030.06517.43
5.5.340.0030.04217.96
5.5.330.0030.07917.95
5.5.320.0030.05518.04
5.5.310.0060.03917.84
5.5.300.0030.04118.12
5.5.290.0000.08018.03
5.5.280.0030.08118.06
5.5.270.0000.05417.96
5.5.260.0030.04517.83
5.5.250.0000.04317.57
5.5.240.0030.04217.41
5.5.230.0000.04417.51
5.5.220.0000.04017.21
5.5.210.0030.04317.21
5.5.200.0030.08217.29
5.5.190.0000.04617.38
5.5.180.0030.06517.07
5.5.160.0070.05117.31
5.5.150.0000.08017.29
5.5.140.0000.05117.29
5.5.130.0030.07917.37
5.5.120.0000.08517.38
5.5.110.0030.04117.37
5.5.100.0030.06617.29
5.5.90.0100.06917.21
5.5.80.0100.06417.29
5.5.70.0070.07716.98
5.5.60.0030.06816.95
5.5.50.0060.05517.30
5.5.40.0030.04117.31
5.5.30.0000.03917.30
5.5.20.0000.08117.18
5.5.10.0000.04817.30
5.5.00.0030.03917.17
5.4.450.0030.08119.38
5.4.440.0070.04419.29
5.4.430.0030.05219.19
5.4.420.0070.03819.47
5.4.410.0100.04019.32
5.4.400.0000.03818.87
5.4.390.0070.05018.94
5.4.380.0000.04918.81
5.4.370.0000.06518.81
5.4.360.0030.08519.00
5.4.350.0070.07918.84
5.4.340.0070.08719.03
5.4.320.0070.08219.08
5.4.310.0030.08018.89
5.4.300.0070.07519.07
5.4.290.0000.07119.07
5.4.280.0060.03618.95
5.4.270.0030.04618.96
5.4.260.0030.04019.02
5.4.250.0200.03618.86
5.4.240.0100.03018.80
5.4.230.0130.05518.89
5.4.220.0130.07618.96
5.4.210.0040.04218.99
5.4.200.0000.04519.12
5.4.190.0030.03919.05
5.4.180.0070.03318.88
5.4.170.0100.06219.11
5.4.160.0000.04419.02
5.4.150.0030.04118.96
5.4.140.0030.03516.58
5.4.130.0070.04116.53
5.4.120.0030.06616.57
5.4.110.0100.06616.64
5.4.100.0070.06016.44
5.4.90.0070.04316.40
5.4.80.0030.03616.32
5.4.70.0000.03916.54
5.4.60.0070.06416.65
5.4.50.0000.04216.58
5.4.40.0000.04016.42
5.4.30.0030.07016.50
5.4.20.0070.06316.45
5.4.10.0070.07016.36
5.4.00.0000.07416.20
5.3.290.0030.07716.20
5.3.280.0000.04316.20
5.3.270.0070.06416.20
5.3.260.0030.03716.20
5.3.250.0000.04816.20
5.3.240.0060.04716.20
5.3.230.0000.03916.20
5.3.220.0030.03816.20
5.3.210.0030.03816.20
5.3.200.0030.03816.20
5.3.190.0000.04116.20
5.3.180.0030.03716.20
5.3.170.0030.03616.20
5.3.160.0030.03416.20
5.3.150.0030.05116.20
5.3.140.0000.04016.20
5.3.130.0030.07816.20
5.3.120.0000.07016.20
5.3.110.0030.07016.20
5.3.100.0000.05316.20
5.3.90.0000.03916.20
5.3.80.0030.03516.20
5.3.70.0030.03416.20
5.3.60.0030.03616.20
5.3.50.0000.03916.20
5.3.40.0030.03416.20
5.3.30.0030.05716.20
5.3.20.0060.03216.20
5.3.10.0060.04216.20
5.3.00.0030.04416.20
5.2.170.0070.03816.20
5.2.160.0030.02716.20
5.2.150.0030.05716.20
5.2.140.0060.03816.20
5.2.130.0030.02616.20
5.2.120.0000.06616.20
5.2.110.0030.04516.20
5.2.100.0070.02616.20
5.2.90.0030.03416.20
5.2.80.0030.03716.20
5.2.70.0000.03116.20
5.2.60.0030.05916.20
5.2.50.0070.05316.20
5.2.40.0030.02816.20
5.2.30.0000.03916.20
5.2.20.0000.03316.20
5.2.10.0030.02616.20
5.2.00.0000.03116.20
5.1.60.0030.02316.20
5.1.50.0000.02716.20
5.1.40.0030.02216.20
5.1.30.0000.03816.20
5.1.20.0030.02916.20
5.1.10.0000.03216.20
5.1.00.0030.05016.20
5.0.50.0000.02216.20
5.0.40.0090.02816.20
5.0.30.0070.04716.20
5.0.20.0030.03016.20
5.0.10.0000.04716.20
5.0.00.0030.05816.20
4.4.90.0000.02016.20
4.4.80.0070.03016.20
4.4.70.0030.01316.20
4.4.60.0000.01616.20
4.4.50.0030.01816.20
4.4.40.0000.02516.20
4.4.30.0000.01716.20
4.4.20.0030.01416.20
4.4.10.0000.02216.20
4.4.00.0030.03716.20
4.3.110.0030.03116.20
4.3.100.0000.03416.20
4.3.90.0000.01816.20
4.3.80.0030.02616.20
4.3.70.0030.01616.20
4.3.60.0000.01616.20
4.3.50.0040.01216.20
4.3.40.0000.02716.20
4.3.30.0030.01716.20
4.3.20.0030.01516.20
4.3.10.0030.02916.20
4.3.00.0040.01816.20

preferences:
40.93 ms | 401 KiB | 5 Q