3v4l.org

run code in 300+ PHP versions simultaneously
<?php $store = array(); $first = array('one' => 1, 'two' => 2); $store = $first; var_dump($store); $second = array('two' => 2, 'three' => 3); $store = array_merge($store, $second); var_dump($store);

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)
8.3.60.0110.01116.50
8.3.50.0100.01018.07
8.3.40.0070.01118.54
8.3.30.0070.00719.05
8.3.20.0070.00020.07
8.3.10.0090.00021.78
8.3.00.0060.00319.25
8.2.180.0180.00316.47
8.2.170.0120.00322.96
8.2.160.0100.00320.52
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0050.00319.23
8.2.110.0080.00319.21
8.2.100.0080.00317.50
8.2.90.0000.00719.06
8.2.80.0080.00017.97
8.2.70.0030.00617.63
8.2.60.0080.00017.80
8.2.50.0030.00518.07
8.2.40.0040.00419.75
8.2.30.0050.00317.89
8.2.20.0050.00317.55
8.2.10.0050.00318.09
8.2.00.0000.00717.77
8.1.270.0000.00920.39
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0060.00321.99
8.1.230.0070.00420.90
8.1.220.0060.00317.74
8.1.210.0080.00018.77
8.1.200.0060.00317.23
8.1.190.0040.00417.10
8.1.180.0080.00018.10
8.1.170.0050.00318.66
8.1.160.0000.00821.91
8.1.150.0040.00418.77
8.1.140.0080.00017.37
8.1.130.0040.00417.74
8.1.120.0050.00317.36
8.1.110.0070.00017.36
8.1.100.0000.00717.37
8.1.90.0070.00017.35
8.1.80.0030.00517.39
8.1.70.0000.00717.27
8.1.60.0000.00817.38
8.1.50.0030.00517.32
8.1.40.0000.00817.40
8.1.30.0000.00817.57
8.1.20.0000.00817.46
8.1.10.0040.00417.46
8.1.00.0040.00417.41
8.0.300.0000.00718.77
8.0.290.0070.00016.63
8.0.280.0070.00018.32
8.0.270.0070.00017.22
8.0.260.0040.00417.18
8.0.250.0070.00016.91
8.0.240.0000.00816.82
8.0.230.0070.00016.83
8.0.220.0030.00316.83
8.0.210.0040.00416.76
8.0.200.0060.00016.89
8.0.190.0040.00416.94
8.0.180.0040.00416.85
8.0.170.0070.00016.79
8.0.160.0000.00716.93
8.0.150.0000.00716.81
8.0.140.0070.00016.79
8.0.130.0000.00713.20
8.0.120.0000.00816.83
8.0.110.0000.00816.72
8.0.100.0040.00416.67
8.0.90.0040.00416.74
8.0.80.0030.01816.86
8.0.70.0050.00316.83
8.0.60.0000.00716.84
8.0.50.0000.00816.70
8.0.30.0110.01117.04
8.0.20.0120.01617.40
8.0.10.0050.00316.71
8.0.00.0100.00916.72
7.4.330.0000.00515.03
7.4.320.0060.00016.50
7.4.300.0030.00316.32
7.4.290.0030.00316.44
7.4.280.0030.00616.53
7.4.270.0030.00616.48
7.4.260.0030.00316.45
7.4.250.0050.00316.48
7.4.240.0020.00516.38
7.4.230.0000.00716.35
7.4.220.0100.01616.42
7.4.210.0050.00916.48
7.4.200.0080.00016.33
7.4.160.0040.01216.34
7.4.150.0140.00317.40
7.4.140.0120.00717.86
7.4.130.0080.00916.35
7.4.120.0090.00816.38
7.4.110.0150.00316.32
7.4.100.0180.00616.31
7.4.90.0090.00916.52
7.4.80.0120.00919.39
7.4.70.0060.00916.43
7.4.60.0070.01016.37
7.4.50.0020.00216.40
7.4.40.0080.00816.55
7.4.30.0110.00516.45
7.4.00.0100.00314.76
7.3.330.0030.00313.04
7.3.320.0070.00712.93
7.3.310.0030.00316.25
7.3.300.0000.00716.20
7.3.290.0000.00616.21
7.3.280.0080.00916.20
7.3.270.0060.01217.40
7.3.260.0140.01116.54
7.3.250.0200.00216.32
7.3.240.0040.01216.14
7.3.230.0110.00816.39
7.3.210.0070.01016.20
7.3.200.0080.00819.39
7.3.190.0090.00916.18
7.3.180.0050.01116.18
7.3.170.0070.01016.27
7.3.160.0220.00016.34
7.3.10.0000.00916.61
7.3.00.0030.01316.74
7.2.330.0060.01116.36
7.2.320.0090.00616.51
7.2.310.0120.00816.56
7.2.300.0110.00816.64
7.2.290.0110.01216.25
7.2.130.0070.00716.73
7.2.120.0100.00716.82
7.2.110.0100.00016.76
7.2.100.0040.01116.62
7.2.90.0100.00016.88
7.2.80.0040.00416.61
7.2.70.0040.01016.64
7.2.60.0040.01116.77
7.2.50.0060.00316.66
7.2.40.0100.00016.77
7.2.30.0100.00616.59
7.2.20.0110.00316.66
7.2.10.0030.01016.84
7.2.00.0090.00517.91
7.1.250.0030.01315.73
7.1.200.0030.00915.64
7.1.100.0040.00717.59
7.1.70.0030.01016.81
7.1.60.0100.01419.50
7.1.50.0070.00416.89
7.1.00.0100.07022.41
7.0.200.0180.00416.32
7.0.140.0030.03321.92
7.0.60.0130.08020.01
7.0.50.0030.06717.86
7.0.40.0000.08720.20
7.0.30.0430.04320.02
7.0.20.0200.04720.00
7.0.10.0370.08020.20
7.0.00.0070.07020.20
5.6.280.0100.06321.07
5.6.210.0100.03720.54
5.6.200.0030.09018.22
5.6.190.0070.04020.38
5.6.180.0270.07720.74
5.6.170.0270.06320.54
5.6.160.0030.04020.46
5.6.150.0030.04018.16
5.6.140.0030.03718.12
5.6.130.0270.03318.11
5.6.120.0100.04021.12
5.6.110.0030.08720.85
5.6.100.0030.06321.10
5.6.90.0070.05720.86
5.6.80.0200.05720.37
5.6.70.0230.04320.39
5.5.350.0170.04320.34
5.5.340.0070.04017.95
5.5.330.0170.04020.41
5.5.320.0070.03320.37
5.5.310.0370.07320.16
5.5.300.0070.03717.91
5.5.290.0070.04317.92
5.5.280.0000.08720.79
5.5.270.0030.04720.76
5.5.260.0100.06320.64
5.5.250.0030.04020.74
5.5.240.0000.09020.25
5.4.450.0500.06319.13
5.4.440.0670.08019.09
5.4.430.0830.06019.56
5.4.420.0930.05319.48
5.4.410.0600.05719.43
5.4.400.0330.07018.65
5.4.390.0300.05718.71
5.4.380.0400.07318.72
5.4.370.0300.06018.68
5.4.360.0300.05318.72
5.4.350.0400.05718.49
5.4.340.0300.05718.68
5.4.320.0330.05318.59
5.4.310.0400.05718.66
5.4.300.0600.05318.62
5.4.290.0400.06018.57
5.4.280.0230.07018.64
5.4.270.0370.05718.64
5.4.260.0470.07018.64
5.4.250.0430.05718.64
5.4.240.0370.06318.48
5.4.230.0400.06718.66
5.4.220.0300.06018.51
5.4.210.0400.04718.50
5.4.200.0300.05316.45
5.4.190.0470.04318.63
5.4.180.0370.06318.53
5.4.170.0430.05018.47
5.4.160.0270.05718.70
5.4.150.0400.06018.68
5.4.140.0400.06016.28
5.4.130.0330.07016.19
5.4.120.0300.05016.04
5.4.110.0300.05316.12
5.4.100.0530.10016.34
5.4.90.0430.07016.19
5.4.80.0270.05316.13
5.4.70.0370.07716.32
5.4.60.0330.07016.01
5.4.50.0330.07316.19
5.4.40.0470.06316.23
5.4.30.0300.05716.19
5.4.20.0500.06016.21
5.4.10.0330.06016.03
5.4.00.0370.04715.78
5.3.290.0270.06314.56
5.3.280.0470.04714.57
5.3.270.0330.05314.55
5.3.260.0370.05014.59
5.3.250.0370.05714.70
5.3.240.0470.05714.61
5.3.230.0370.05714.70
5.3.220.0400.05714.53
5.3.210.0230.06314.48
5.3.200.0870.05714.58
5.3.190.0500.05714.48
5.3.180.0370.05014.59
5.3.170.0270.06014.59
5.3.160.0300.06714.55
5.3.150.0400.05314.61
5.3.140.0370.06014.61
5.3.130.0500.06314.64
5.3.120.0530.06314.48
5.3.110.0470.08014.60
5.3.100.0430.06013.96
5.3.90.0370.07014.09
5.3.80.0530.06314.11
5.3.70.0270.07314.00
5.3.60.0570.05714.07
5.3.50.0430.06313.98
5.3.40.0500.05013.86
5.3.30.0470.06713.89
5.3.20.0430.05313.80
5.3.10.0400.05313.57
5.3.00.0370.06313.73
5.2.170.0230.04711.11
5.2.160.0230.05711.07
5.2.150.0170.05011.11
5.2.140.0270.05011.18
5.2.130.0230.04711.18
5.2.120.0300.04311.05
5.2.110.0400.02711.10
5.2.100.0430.03711.13
5.2.90.0200.04711.08
5.2.80.0270.05011.07
5.2.70.0400.04711.14
5.2.60.0170.05711.20
5.2.50.0170.04311.15
5.2.40.0430.06011.04
5.2.30.0300.06311.01
5.2.20.0400.05710.99
5.2.10.0300.05710.91
5.2.00.0370.06010.80
5.1.60.0200.0439.96
5.1.50.0230.03710.05
5.1.40.0330.0439.97
5.1.30.0230.03710.30
5.1.20.0230.04310.32
5.1.10.0330.05010.18
5.1.00.0370.04710.18
5.0.50.0070.0378.61
5.0.40.0270.0238.44
5.0.30.0130.0478.32
5.0.20.0070.0338.33
5.0.10.0170.0408.34
5.0.00.0130.0478.36
4.4.90.0130.0236.85
4.4.80.0100.0236.85
4.4.70.0170.0236.85
4.4.60.0170.0206.85
4.4.50.0130.0236.85
4.4.40.0130.0406.85
4.4.30.0230.0236.85
4.4.20.0230.0236.85
4.4.10.0170.0276.85
4.4.00.0130.0406.85
4.3.110.0200.0206.85
4.3.100.0170.0276.85
4.3.90.0170.0306.85
4.3.80.0200.0476.85
4.3.70.0070.0336.85
4.3.60.0100.0276.85
4.3.50.0130.0236.85
4.3.40.0100.0376.85
4.3.30.0030.0236.85
4.3.20.0100.0276.85
4.3.10.0030.0276.85
4.3.00.0130.0236.79

preferences:
49.72 ms | 400 KiB | 5 Q