3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a1 = array('foo' => 'foo', 'bar' => 'bar'); $a2 = array('zuu' => 'zuu', 'bar' => 'bar2'); var_dump($a1+$a2, array_merge($a1,$a2));

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)
8.3.70.0120.00618.43
8.3.60.0070.01118.30
8.3.50.0110.00821.13
8.3.40.0090.00618.59
8.3.30.0120.00319.01
8.3.20.0040.00420.22
8.3.10.0040.00421.77
8.3.00.0040.00417.38
8.2.190.0120.00416.63
8.2.180.0110.00718.01
8.2.170.0030.01022.96
8.2.160.0000.01320.39
8.2.150.0000.00824.18
8.2.140.0070.00024.66
8.2.130.0040.00426.16
8.2.120.0050.00320.91
8.2.110.0110.00019.31
8.2.100.0040.01117.63
8.2.90.0060.00319.13
8.2.80.0060.00317.97
8.2.70.0030.00517.63
8.2.60.0000.00817.80
8.2.50.0060.00318.07
8.2.40.0000.00818.03
8.2.30.0020.00517.83
8.2.20.0040.00417.54
8.2.10.0040.00418.01
8.2.00.0000.00717.98
8.1.280.0040.01425.92
8.1.270.0040.00420.16
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00022.23
8.1.230.0120.00017.54
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0030.00617.00
8.1.190.0030.00517.13
8.1.180.0040.00418.10
8.1.170.0050.00320.31
8.1.160.0000.00821.84
8.1.150.0050.00218.82
8.1.140.0030.00617.30
8.1.130.0030.00317.78
8.1.120.0060.00317.41
8.1.110.0040.00417.34
8.1.100.0000.00717.28
8.1.90.0000.00717.39
8.1.80.0040.00417.34
8.1.70.0000.00717.34
8.1.60.0040.00417.50
8.1.50.0030.00617.46
8.1.40.0030.00617.44
8.1.30.0000.00817.61
8.1.20.0040.00417.56
8.1.10.0040.00417.40
8.1.00.0030.00517.27
8.0.300.0030.00618.77
8.0.290.0000.00716.75
8.0.280.0040.00418.30
8.0.270.0030.00317.19
8.0.260.0030.00317.18
8.0.250.0030.00316.96
8.0.240.0070.00016.96
8.0.230.0000.00716.85
8.0.220.0000.00716.76
8.0.210.0030.00316.77
8.0.200.0000.00816.98
8.0.190.0000.00817.00
8.0.180.0030.00516.92
8.0.170.0000.00916.75
8.0.160.0050.00316.75
8.0.150.0040.00416.79
8.0.140.0000.00916.77
8.0.130.0000.00613.34
8.0.120.0030.00516.88
8.0.110.0030.00516.88
8.0.100.0040.00416.76
8.0.90.0030.00316.85
8.0.80.0000.01616.92
8.0.70.0070.00016.84
8.0.60.0030.00516.99
8.0.50.0030.00316.82
8.0.30.0100.01516.96
8.0.20.0110.01417.40
8.0.10.0070.00016.98
8.0.00.0050.01216.82
7.4.330.0020.00215.03
7.4.320.0000.00616.29
7.4.300.0000.00616.32
7.4.290.0030.00316.52
7.4.280.0070.00016.55
7.4.270.0000.00716.44
7.4.260.0000.00716.40
7.4.250.0050.00216.47
7.4.240.0020.00516.50
7.4.230.0000.00716.26
7.4.220.0070.01016.46
7.4.210.0090.00716.57
7.4.200.0000.00716.24
7.4.160.0080.00816.68
7.4.150.0180.00517.40
7.4.140.0090.01417.86
7.4.130.0110.00816.36
7.4.120.0080.00816.51
7.4.110.0140.00416.25
7.4.100.0120.00616.49
7.4.90.0090.00916.19
7.4.80.0120.00819.39
7.4.70.0090.00916.46
7.4.60.0070.01016.30
7.4.50.0040.00416.22
7.4.40.0070.01116.61
7.4.30.0110.00716.38
7.4.00.0030.01314.89
7.3.330.0020.00213.00
7.3.320.0120.00413.02
7.3.310.0070.00016.13
7.3.300.0030.00316.08
7.3.290.0070.00016.19
7.3.280.0110.00716.20
7.3.270.0040.01517.40
7.3.260.0110.00716.47
7.3.250.0100.00816.46
7.3.240.0030.01416.29
7.3.230.0080.01116.39
7.3.210.0080.01516.22
7.3.200.0130.00319.39
7.3.190.0120.00416.59
7.3.180.0110.00516.48
7.3.170.0110.00716.32
7.3.160.0060.01216.19
7.2.330.0130.00716.34
7.2.320.0130.01016.60
7.2.310.0040.01416.46
7.2.300.0040.01216.32
7.2.290.0100.01016.50
7.2.00.0090.00918.98
7.1.100.0070.00718.01
7.1.70.0000.00716.85
7.1.60.0030.02019.50
7.1.50.0120.00916.80
7.1.00.0030.07722.35
7.0.200.0030.00616.88
7.0.110.0000.08719.99
7.0.100.0070.08019.93
7.0.90.0030.09019.93
7.0.80.0070.08019.87
7.0.70.0030.07019.93
7.0.60.0070.08319.87
7.0.50.0100.07719.92
7.0.40.0070.08019.89
7.0.30.0100.07019.75
7.0.20.0100.08019.78
7.0.10.0030.09019.73
7.0.00.0170.07019.86
5.6.280.0000.07720.90
5.6.260.0170.06320.73
5.6.250.0000.08020.64
5.6.240.0070.07720.47
5.6.230.0030.08320.54
5.6.220.0070.07320.53
5.6.210.0070.06320.62
5.6.200.0130.08020.64
5.6.190.0070.07720.56
5.6.180.0100.07720.61
5.6.170.0100.08320.64
5.6.160.0070.07720.59
5.6.150.0030.05320.58
5.6.140.0170.04020.61
5.6.130.0070.08020.62
5.6.120.0070.08320.69
5.6.110.0030.08720.60
5.6.100.0000.05320.55
5.6.90.0070.04020.60
5.6.80.0030.04020.02
5.6.70.0030.04319.95
5.6.60.0070.03719.91
5.6.50.0030.04020.23
5.6.40.0100.04319.91
5.6.30.0030.03719.98
5.6.20.0070.04719.90
5.6.10.0100.06719.98
5.6.00.0070.03319.91
5.5.380.0130.07717.40
5.5.370.0030.08017.58
5.5.360.0030.05017.53
5.5.350.0000.05317.46
5.5.340.0130.07718.10
5.5.330.0070.08018.13
5.5.320.0070.07717.99
5.5.310.0170.06718.16
5.5.300.0070.08718.25
5.5.290.0130.07318.13
5.5.280.0130.07717.86
5.5.270.0070.08017.88
5.5.260.0070.06318.08
5.5.250.0100.04017.68
5.5.240.0030.03717.52
5.5.230.0100.03317.24
5.5.220.0070.03317.47
5.5.210.0030.03717.53
5.5.200.0000.05017.20
5.5.190.0000.05717.45
5.5.180.0000.04017.23
5.5.160.0000.08017.21
5.5.150.0030.03717.21
5.5.140.0000.04317.51
5.5.130.0030.05317.48
5.5.120.0030.03717.45
5.5.110.0070.05317.11
5.5.100.0070.06717.28
5.5.90.0100.06017.34
5.5.80.0000.03717.40
5.5.70.0000.04017.37
5.5.60.0030.03717.03
5.5.50.0030.05017.51
5.5.40.0030.03717.11
5.5.30.0100.03017.25
5.5.20.0000.03717.25
5.5.10.0070.03717.10
5.5.00.0000.04017.25
5.4.450.0070.08319.51
5.4.440.0070.07719.45
5.4.430.0100.08019.41
5.4.420.0030.04319.25
5.4.410.0000.04319.15
5.4.400.0030.03719.27
5.4.390.0000.05719.08
5.4.380.0030.04019.10
5.4.370.0000.03719.03
5.4.360.0000.04319.00
5.4.350.0070.03319.12
5.4.340.0030.04019.03
5.4.320.0030.03719.07
5.4.310.0030.03718.98
5.4.300.0000.04018.95
5.4.290.0030.03719.11
5.4.280.0070.03718.97
5.4.270.0000.05719.12
5.4.260.0030.03318.98
5.4.250.0030.03719.16
5.4.240.0030.04019.11
5.4.230.0000.04319.24
5.4.220.0030.04019.17
5.4.210.0070.04719.16
5.4.200.0000.04319.00
5.4.190.0030.03719.16
5.4.180.0030.03718.99
5.4.170.0030.03719.16
5.4.160.0070.03319.23
5.4.150.0070.06719.23
5.4.140.0000.06016.18
5.4.130.0070.03016.15
5.4.120.0070.06716.27
5.4.110.0100.06016.52
5.4.100.0100.07016.38
5.4.90.0030.07316.28
5.4.80.0030.07716.21
5.4.70.0100.06716.26
5.4.60.0070.07316.35
5.4.50.0100.06316.38
5.4.40.0030.06716.30
5.4.30.0100.07316.45
5.4.20.0070.06716.16
5.4.10.0130.07016.20
5.4.00.0070.06715.64
5.3.290.0030.04314.54
5.3.280.0000.04314.39
5.3.270.0000.04014.54
5.3.260.0070.03314.51
5.3.250.0000.04014.63
5.3.240.0000.04014.39
5.3.230.0030.06314.54
5.3.220.0130.06714.49
5.3.210.0100.08014.47
5.3.200.0130.06314.51
5.3.190.0100.06714.64
5.3.180.0130.06714.57
5.3.170.0130.07014.48
5.3.160.0030.07714.62
5.3.150.0030.07314.48
5.3.140.0070.07014.49
5.3.130.0070.05014.38
5.3.120.0100.07714.43
5.3.110.0100.07014.64
5.3.100.0100.07313.97
5.3.90.0130.06714.09
5.3.80.0070.07313.91
5.3.70.0100.07013.96
5.3.60.0070.08013.93
5.3.50.0070.07013.73
5.3.40.0170.06313.77
5.3.30.0030.07713.85
5.3.20.0100.07013.59
5.3.10.0070.04313.58
5.3.00.0130.06313.46
5.2.170.0030.03311.21
5.2.160.0070.06311.09
5.2.150.0070.06311.17
5.2.140.0030.06311.09
5.2.130.0070.03711.04
5.2.120.0070.06011.02
5.2.110.0030.03311.04
5.2.100.0000.06710.99
5.2.90.0100.05711.12
5.2.80.0000.05711.00
5.2.70.0030.05711.00
5.2.60.0030.06011.11
5.2.50.0030.06710.93
5.2.40.0170.05010.94
5.2.30.0070.04310.91
5.2.20.0070.06310.96
5.2.10.0070.06010.98
5.2.00.0070.05710.67
5.1.60.0030.0539.95
5.1.50.0030.05310.23
5.1.40.0070.0539.95
5.1.30.0100.05310.32
5.1.20.0070.05010.36
5.1.10.0030.0479.96
5.1.00.0030.0479.97
5.0.50.0030.0479.95
5.0.40.0100.0409.95
5.0.30.0030.0639.95
5.0.20.0070.0279.95
5.0.10.0000.0439.95
5.0.00.0070.0579.95
4.4.90.0070.0339.95
4.4.80.0030.0309.95
4.4.70.0030.0379.95
4.4.60.0030.0309.95
4.4.50.0000.0379.95
4.4.40.0030.0539.95
4.4.30.0030.0339.95
4.4.20.0000.0409.95
4.4.10.0070.0309.95
4.4.00.0030.0509.95
4.3.110.0000.0279.95
4.3.100.0070.0309.95
4.3.90.0000.0379.95
4.3.80.0100.0379.95
4.3.70.0000.0309.95
4.3.60.0030.0339.95
4.3.50.0000.0309.95
4.3.40.0000.0409.95
4.3.30.0000.0379.95
4.3.20.0000.0409.95
4.3.10.0000.0379.95
4.3.00.0000.0379.95

preferences:
57.15 ms | 401 KiB | 5 Q