3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr1 = [1,2,3]; $arr2 = $arr1; debug_zval_dump($arr2); key($arr2); debug_zval_dump($arr2); unset($arr1); unset($arr2); $arr1 = [1,2,3]; $arr2 = $arr1; debug_zval_dump($arr2); end($arr2); debug_zval_dump($arr2);

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)
8.3.60.0080.00816.37
8.3.50.0120.00821.99
8.3.40.0110.00418.63
8.3.30.0110.00418.60
8.3.20.0080.00020.23
8.3.10.0080.00023.69
8.3.00.0080.00017.50
8.2.180.0090.00916.38
8.2.170.0110.00722.96
8.2.160.0070.00720.10
8.2.150.0040.00424.18
8.2.140.0030.00524.66
8.2.130.0070.00026.16
8.2.120.0070.00317.50
8.2.110.0000.00920.21
8.2.100.0130.00017.72
8.2.90.0040.00419.05
8.2.80.0090.00017.97
8.2.70.0060.00317.61
8.2.60.0000.00817.93
8.2.50.0030.00618.07
8.2.40.0000.00920.92
8.2.30.0070.00020.61
8.2.20.0030.00517.61
8.2.10.0000.00818.11
8.2.00.0060.00318.10
8.1.280.0070.01125.92
8.1.270.0060.00323.84
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0110.00021.88
8.1.230.0000.01222.60
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0030.00617.22
8.1.190.0000.00817.23
8.1.180.0000.00718.10
8.1.170.0050.00218.98
8.1.160.0000.00721.94
8.1.150.0050.00320.56
8.1.140.0090.00019.42
8.1.130.0030.00317.62
8.1.120.0000.00717.34
8.1.110.0070.00017.37
8.1.100.0000.00717.27
8.1.90.0040.00417.39
8.1.80.0000.00817.30
8.1.70.0000.00717.23
8.1.60.0000.00717.43
8.1.50.0030.00617.35
8.1.40.0030.00617.36
8.1.30.0000.01217.61
8.1.20.0070.00017.57
8.1.10.0000.00717.57
8.1.00.0000.00817.45
8.0.300.0060.00318.77
8.0.290.0030.00516.63
8.0.280.0040.00418.38
8.0.270.0040.00417.09
8.0.260.0060.00017.19
8.0.250.0040.00416.85
8.0.240.0070.00016.92
8.0.230.0040.00416.92
8.0.220.0040.00416.80
8.0.210.0050.00216.77
8.0.200.0030.00316.77
8.0.190.0000.00716.77
8.0.180.0080.00016.73
8.0.170.0040.00416.79
8.0.160.0060.00316.79
8.0.150.0000.00716.80
8.0.140.0000.00716.73
8.0.130.0030.00313.24
8.0.120.0000.00816.70
8.0.110.0030.00316.83
8.0.100.0070.00016.83
8.0.90.0040.00416.82
8.0.80.0060.00916.77
8.0.70.0080.00016.86
8.0.60.0000.00716.66
8.0.50.0070.00016.69
8.0.30.0050.00917.22
8.0.20.0090.01117.40
8.0.10.0050.00217.02
8.0.00.0090.01016.59
7.4.330.0000.00515.08
7.4.320.0030.00316.45
7.4.300.0030.00316.51
7.4.290.0030.00316.51
7.4.280.0000.00816.48
7.4.270.0030.00316.34
7.4.260.0000.00916.42
7.4.250.0000.00716.38
7.4.240.0010.00616.52
7.4.230.0040.00416.34
7.4.220.0070.01116.60
7.4.210.0120.00416.54
7.4.200.0080.00016.43
7.4.160.0070.01016.50
7.4.150.0090.00917.40
7.4.140.0130.00617.86
7.4.130.0090.00916.40
7.4.120.0100.00616.45
7.4.110.0160.00716.39
7.4.100.0190.00616.38
7.4.90.0090.00916.34
7.4.80.0110.00719.39
7.4.70.0050.01116.29
7.4.60.0120.00316.40
7.4.50.0000.00816.54
7.4.40.0100.00716.36
7.4.30.0180.00016.32
7.4.00.0030.01115.09
7.3.330.0030.00312.99
7.3.320.0000.00613.11
7.3.310.0040.00416.24
7.3.300.0030.00316.24
7.3.290.0000.00716.14
7.3.280.0080.01016.22
7.3.270.0090.00917.40
7.3.260.0230.00016.59
7.3.250.0130.00616.20
7.3.240.0070.01216.36
7.3.230.0070.01016.39
7.3.210.0040.01316.43
7.3.200.0170.00016.30
7.3.190.0090.00616.18
7.3.180.0060.00916.16
7.3.170.0100.00716.46
7.3.160.0080.00816.17
7.2.330.0090.00916.46
7.2.320.0110.00616.32
7.2.310.0100.00716.22
7.2.300.0050.01416.46
7.2.290.0100.00716.46
7.2.60.0120.00316.81
7.2.00.0070.00719.32
7.1.200.0090.00615.74
7.1.100.0000.01318.16
7.1.70.0030.00917.14
7.1.60.0070.01819.43
7.1.50.0040.01816.77
7.1.00.0030.07722.37
7.0.200.0230.00314.63
7.0.60.0030.05020.00
7.0.50.0070.07017.81
7.0.40.0070.04019.98
7.0.30.0200.08020.01
7.0.20.0300.04020.00
7.0.10.0070.04320.23
7.0.00.0170.06320.12
5.6.280.0070.06321.11
5.6.210.0070.08020.69
5.6.200.0070.08318.20
5.6.190.0070.04720.64
5.6.180.3700.04020.50
5.6.170.0330.07020.47
5.6.160.0000.04720.46
5.6.150.0130.07718.11
5.6.140.0100.07018.18
5.6.130.0070.04018.18
5.6.120.0100.05020.96
5.6.110.0000.04320.94
5.6.100.0170.07720.95
5.6.90.0070.08720.99
5.6.80.0030.04020.40
5.5.350.3100.03320.38
5.5.340.0170.04717.92
5.5.330.0030.05020.13
5.5.320.0170.08020.32
5.5.310.0200.05720.29
5.5.300.0100.07317.90
5.5.290.0170.02717.88
5.5.280.0100.03320.96
5.5.270.0130.05020.75
5.5.260.0030.08720.76
5.5.250.0070.08320.57
5.5.240.0070.06320.14
5.4.450.0570.05319.44
5.4.440.0530.06719.53
5.4.430.0570.05019.41
5.4.420.0530.06019.50
5.4.410.0730.06019.27
5.4.400.0530.05719.24
5.4.390.0700.05319.16
5.4.380.0730.05319.24
5.4.370.0600.06019.24
5.4.360.0530.05719.31
5.4.350.0670.06319.16
5.4.340.0530.05719.20
5.4.320.0570.06019.24
5.4.310.0630.04318.81
5.4.300.0530.05319.23
5.4.290.0630.05319.09
5.4.280.0630.05019.26
5.4.270.0670.06719.30
5.4.260.0630.04318.99
5.4.250.0670.05018.77
5.4.240.0530.05719.10
5.4.230.0800.05718.77
5.4.220.0530.07018.91
5.4.210.0570.04719.21
5.4.200.0600.05319.27
5.4.190.0070.05318.80
5.4.180.0170.04719.15
5.4.170.0030.05718.80
5.4.160.0400.06018.99
5.4.150.0470.06718.75
5.4.140.0670.04716.34
5.4.130.0570.04716.30
5.4.120.0670.04716.27
5.4.110.0530.05016.36
5.4.100.0430.06016.48
5.4.90.0530.06016.18
5.4.80.0630.04716.34
5.4.70.0600.05316.43
5.4.60.0630.06016.42
5.4.50.0630.06016.43
5.4.40.0630.05016.46
5.4.30.0670.04716.50
5.4.20.0530.05016.15
5.4.10.0500.05316.05
5.4.00.0570.04315.82

preferences:
57.65 ms | 401 KiB | 5 Q