3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [['a'], ['b'], ['c']]; var_dump(call_user_func_array('array_merge', $array)); var_dump(array_merge($array));

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)
8.3.60.0110.00716.38
8.3.50.0070.01421.94
8.3.40.0000.01418.73
8.3.30.0030.01418.83
8.3.20.0050.00320.30
8.3.10.0040.00421.73
8.3.00.0040.00419.13
8.2.180.0180.00318.29
8.2.170.0090.00622.96
8.2.160.0080.01220.41
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0000.00819.31
8.2.110.0070.00419.20
8.2.100.0060.00617.63
8.2.90.0000.00819.09
8.2.80.0040.00417.97
8.2.70.0040.00417.38
8.2.60.0030.00617.93
8.2.50.0080.00018.07
8.2.40.0070.00018.09
8.2.30.0080.00017.99
8.2.20.0000.00817.48
8.2.10.0030.00518.07
8.2.00.0070.00017.66
8.1.280.0070.00725.92
8.1.270.0090.00020.66
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0090.00023.88
8.1.230.0060.00617.42
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0000.01017.35
8.1.190.0080.00017.23
8.1.180.0000.00718.10
8.1.170.0000.00920.16
8.1.160.0030.00621.81
8.1.150.0000.00818.86
8.1.140.0040.00417.38
8.1.130.0030.00317.80
8.1.120.0100.00017.41
8.1.110.0040.00417.39
8.1.100.0030.00517.20
8.1.90.0080.00017.40
8.1.80.0040.00417.28
8.1.70.0030.00317.41
8.1.60.0040.00417.55
8.1.50.0060.00317.33
8.1.40.0040.00417.38
8.1.30.0080.00017.57
8.1.20.0040.00417.54
8.1.10.0030.00517.30
8.1.00.0000.00717.35
8.0.300.0000.00718.77
8.0.290.0070.00016.58
8.0.280.0070.00018.27
8.0.270.0000.00717.16
8.0.260.0030.00317.20
8.0.250.0040.00416.80
8.0.240.0040.00416.87
8.0.230.0000.00716.90
8.0.220.0040.00316.80
8.0.210.0040.00416.80
8.0.200.0080.00316.85
8.0.190.0090.00016.79
8.0.180.0040.00416.88
8.0.170.0040.00416.75
8.0.160.0090.00016.82
8.0.150.0080.00416.80
8.0.140.0070.00016.79
8.0.130.0030.00313.28
8.0.120.0070.00016.79
8.0.110.0000.00716.86
8.0.100.0070.00016.66
8.0.90.0040.00416.69
8.0.80.0060.00916.80
8.0.70.0040.00416.84
8.0.60.0070.00016.88
8.0.50.0040.00416.65
8.0.30.0060.01516.92
8.0.20.0160.00717.40
8.0.10.0040.00416.82
8.0.00.0120.00516.60
7.4.330.0030.00315.04
7.4.320.0000.00616.43
7.4.300.0030.00316.53
7.4.290.0070.00016.49
7.4.280.0080.00016.48
7.4.270.0000.00716.39
7.4.260.0030.00316.41
7.4.250.0000.00716.41
7.4.240.0030.00516.40
7.4.230.0030.00316.46
7.4.220.0060.01316.43
7.4.210.0060.00916.64
7.4.200.0040.00416.61
7.4.160.0070.00716.20
7.4.150.0120.00917.40
7.4.140.0110.00617.86
7.4.130.0110.00616.43
7.4.120.0120.00616.49
7.4.110.0090.00916.35
7.4.100.0170.00016.45
7.4.90.0100.00716.43
7.4.80.0090.01519.39
7.4.70.0110.00616.35
7.4.60.0120.00416.35
7.4.50.0040.00416.38
7.4.40.0030.01716.34
7.4.30.0180.00416.46
7.4.00.0040.01114.98
7.3.330.0030.00212.97
7.3.320.0090.00412.97
7.3.310.0000.00816.09
7.3.300.0040.00416.13
7.3.290.0040.01016.11
7.3.280.0090.00916.14
7.3.270.0300.00617.40
7.3.260.0030.01516.10
7.3.250.0090.01016.14
7.3.240.0060.01616.40
7.3.230.0100.01316.39
7.3.210.0080.00816.20
7.3.200.0040.01419.39
7.3.190.0110.00616.50
7.3.180.0090.00616.48
7.3.170.0070.01416.27
7.3.160.0090.01416.12
7.3.00.0060.00616.46
7.2.330.0100.00716.45
7.2.320.0110.00716.26
7.2.310.0150.00416.56
7.2.300.0130.00416.59
7.2.290.0060.01116.32
7.2.130.0110.00016.71
7.2.120.0000.01316.45
7.2.110.0070.00716.69
7.2.100.0060.00316.68
7.2.90.0060.00916.85
7.2.80.0030.01416.41
7.2.70.0090.00616.46
7.2.60.0080.00816.34
7.2.50.0120.00016.44
7.2.40.0080.00416.66
7.2.30.0090.00616.65
7.2.20.0030.00916.83
7.2.10.0040.01116.47
7.2.00.0030.00817.91
7.1.250.0100.01015.79
7.1.240.0030.01015.66
7.1.230.0050.00315.53
7.1.220.0100.00315.66
7.1.210.0060.00315.67
7.1.200.0030.00915.85
7.1.190.0030.00715.64
7.1.180.0110.00415.40
7.1.170.0040.00815.42
7.1.160.0060.00615.87
7.1.150.0030.00915.40
7.1.140.0090.00315.62
7.1.130.0000.01115.55
7.1.120.0100.00315.73
7.1.110.0030.00715.66
7.1.100.0070.00916.95
7.1.90.0040.00415.72
7.1.80.0060.00915.56
7.1.70.0060.00316.40
7.1.60.0030.00716.45
7.1.50.0030.00916.25
7.1.40.0040.00715.87
7.1.30.0110.00415.50
7.1.20.0070.00315.44
7.1.10.0160.00315.52
7.1.00.0020.04418.94
7.0.330.0100.00015.09
7.0.320.0030.00715.43
7.0.310.0040.01115.35
7.0.300.0060.00615.25
7.0.290.0130.00315.23
7.0.280.0040.01115.03
7.0.270.0060.00615.33
7.0.260.0060.00615.25
7.0.250.0080.00415.12
7.0.240.0090.00315.47
7.0.230.0030.01015.42
7.0.220.0070.00615.33
7.0.210.0040.00715.11
7.0.200.0070.00515.91
7.0.190.0070.00715.09
7.0.180.0080.00315.24
7.0.170.0030.01015.22
7.0.160.0130.00315.26
7.0.150.0000.00815.48
7.0.140.0030.03718.70
7.0.130.0030.01015.31
7.0.120.0060.00315.29
7.0.110.0030.00615.41
7.0.100.0100.00315.38
7.0.90.0040.00415.52
7.0.80.0030.00615.32
7.0.70.0030.00915.24
7.0.60.0100.03517.43
7.0.50.0070.03016.48
7.0.40.0100.04016.60
7.0.30.0140.02516.72
7.0.20.0170.04716.57
7.0.10.0100.02816.75
7.0.00.0120.02316.54
5.6.380.0060.00614.48
5.6.370.0030.00914.38
5.6.360.0070.00414.17
5.6.350.0000.01514.43
5.6.340.0070.00314.34
5.6.330.0070.00313.96
5.6.320.0030.00714.29
5.6.310.0040.00714.23
5.6.300.0000.01514.46
5.6.290.0080.00314.06
5.6.280.0040.04017.51
5.6.270.0030.01014.15
5.6.260.0060.01014.13
5.6.250.0060.00314.36
5.6.240.0000.01214.02
5.6.230.0060.00314.13
5.6.220.0030.00714.27
5.6.210.0090.02917.46
5.6.200.0120.03816.11
5.6.190.0080.04717.25
5.6.180.0070.04717.13
5.6.170.0130.02417.29
5.6.160.0090.03417.37
5.6.150.0030.02516.04
5.6.140.0050.04316.25
5.6.130.0090.03716.02
5.6.120.0090.04517.56
5.6.110.0050.03317.63
5.6.100.0100.04117.61
5.6.90.0020.03217.81
5.6.80.0070.02217.20
5.6.70.0020.04817.13
5.6.60.0090.00614.32
5.6.50.0110.00414.25
5.6.40.0110.00314.19
5.6.30.0090.00313.94
5.6.20.0120.00314.30
5.6.10.0090.00314.11
5.6.00.0040.00714.08
5.5.380.0060.00610.91
5.5.370.0060.00011.14
5.5.360.0000.00510.71
5.5.350.0050.04415.65
5.5.340.0000.04114.46
5.5.330.0030.04515.56
5.5.320.0000.03415.46
5.5.310.0140.03515.61
5.5.300.0020.03514.52
5.5.290.0100.01714.42
5.5.280.0020.05115.97
5.5.270.0080.03215.85
5.5.260.0070.04415.96
5.5.250.0060.04115.64
5.5.240.0070.04315.56
5.5.230.0040.00910.70
5.5.220.0000.01010.98
5.5.210.0060.00010.79
5.5.200.0040.00410.68
5.5.190.0030.00910.64
5.5.180.0000.01010.47
5.5.170.0000.01311.01
5.5.160.0040.00410.61
5.5.150.0030.00510.67
5.5.140.0120.00010.60
5.5.130.0030.00710.87
5.5.120.0030.01011.00
5.5.110.0060.00310.94
5.5.100.0070.00010.99
5.5.90.0060.00310.92
5.5.80.0030.00310.97
5.5.70.0060.00610.52
5.5.60.0060.00610.89
5.5.50.0070.00310.91
5.5.40.0060.00310.93
5.5.30.0030.00710.77
5.5.20.0030.00910.89
5.5.10.0000.01110.57
5.5.00.0030.00910.63
5.4.450.0350.02715.36
5.4.440.0400.04015.06
5.4.430.0390.03115.11
5.4.420.0360.03815.14
5.4.410.0340.03615.02
5.4.400.0140.03014.79
5.4.390.0080.03414.67
5.4.380.0080.03214.73
5.4.370.0050.03814.57
5.4.360.0140.03114.79
5.4.350.0180.02814.70
5.4.340.0160.02614.79
5.4.330.0000.01010.32
5.4.320.0140.02714.72
5.4.310.0070.03114.70
5.4.300.0150.02514.67
5.4.290.0100.02814.64
5.4.280.0180.02414.58
5.4.270.0140.02414.80
5.4.260.0070.03314.76
5.4.250.0150.02714.77
5.4.240.0070.03314.47
5.4.230.0130.02614.56
5.4.220.0120.02914.70
5.4.210.0120.02714.57
5.4.200.0110.02713.76
5.4.190.0120.02614.59
5.4.180.0140.02714.71
5.4.170.0130.03014.59
5.4.160.0120.03214.67
5.4.150.0100.03114.70
5.4.140.0140.02413.25
5.4.130.0080.02713.46
5.4.120.0110.02613.35
5.4.110.0080.02713.41
5.4.100.0110.03313.44
5.4.90.0190.02713.58
5.4.80.0040.03213.46
5.4.70.0150.02313.53
5.4.60.0100.03013.42
5.4.50.0140.02213.37
5.4.40.0110.02913.32
5.4.30.0150.02213.45
5.4.20.0070.03013.53
5.4.10.0160.02013.33
5.4.00.0120.02513.26
5.3.290.0140.02412.44
5.3.280.0130.02512.44
5.3.270.0150.02312.38
5.3.260.0110.02712.41
5.3.250.0050.03312.39
5.3.240.0100.02712.43
5.3.230.0060.03112.44
5.3.220.0070.03512.40
5.3.210.0030.03612.43
5.3.200.0160.02112.38
5.3.190.0070.03212.43
5.3.180.0060.03312.41
5.3.170.0090.03112.46
5.3.160.0110.03412.38
5.3.150.0150.02112.41
5.3.140.0110.02812.40
5.3.130.0130.02812.41
5.3.120.0140.02712.37
5.3.110.0080.03012.36
5.3.100.0140.02612.11
5.3.90.0080.02812.17
5.3.80.0050.03312.13
5.3.70.0060.03312.13
5.3.60.0100.02712.08
5.3.50.0100.02612.07
5.3.40.0110.02612.15
5.3.30.0120.02512.13
5.3.20.0150.02111.98
5.3.10.0070.02712.00
5.3.00.0120.02311.94
5.2.170.0120.02010.68
5.2.160.0030.02510.68
5.2.150.0060.02610.71
5.2.140.0100.02510.72
5.2.130.0070.02310.65
5.2.120.0030.02510.66
5.2.110.0140.01510.68
5.2.100.0070.02210.63
5.2.90.0120.02010.62
5.2.80.0080.02110.74
5.2.70.0070.02310.71
5.2.60.0080.02110.67
5.2.50.0130.01810.66
5.2.40.0050.02510.62
5.2.30.0100.02210.69
5.2.20.0070.02210.56
5.2.10.0060.02210.58
5.2.00.0050.02310.50
5.1.60.0050.02010.13
5.1.50.0140.01310.17
5.1.40.0070.01910.13
5.1.30.0050.02310.28
5.1.20.0090.01910.32
5.1.10.0070.01710.16
5.1.00.0080.02510.22
5.0.50.0050.0179.40
5.0.40.0050.0209.36
5.0.30.0050.0309.29
5.0.20.0050.0209.29
5.0.10.0040.0189.27
5.0.00.0020.0269.27
4.4.90.0070.0158.07
4.4.80.0030.0158.05
4.4.70.0040.0148.07
4.4.60.0020.0138.07
4.4.50.0050.0168.08
4.4.40.0090.0208.07
4.4.30.0070.0138.08
4.4.20.0030.0138.09
4.4.10.0050.0128.09
4.4.00.0050.0178.09
4.3.110.0020.0148.02
4.3.100.0070.0108.03
4.3.90.0100.0078.01
4.3.80.0020.0208.01
4.3.70.0020.0158.08
4.3.60.0020.0148.01
4.3.50.0030.0138.03
4.3.40.0050.0188.02
4.3.30.0040.0157.42
4.3.20.0030.0127.43
4.3.10.0070.0107.38
4.3.00.0050.0159.51

preferences:
54.84 ms | 401 KiB | 5 Q