3v4l.org

run code in 300+ PHP versions simultaneously
<?php for ($i=0;$i<1;$i++) $a['a'.$i] = array('a','b','c','d','e','f'); for ($i=0; $i<10000; $i++) { $merged = call_user_func_array('array_merge', $a); }

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)
8.3.60.0100.01018.39
8.3.50.0140.00319.76
8.3.40.0170.00318.94
8.3.30.0060.01019.17
8.3.20.0150.00420.20
8.3.10.0120.00621.91
8.3.00.0080.00017.93
8.2.180.0190.00318.41
8.2.170.0150.00022.96
8.2.160.0070.00722.20
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0110.00426.16
8.2.120.0080.00020.74
8.2.110.0040.00422.07
8.2.100.0040.00718.16
8.2.90.0080.00019.40
8.2.80.0050.00317.97
8.2.70.0060.00317.63
8.2.60.0080.00018.05
8.2.50.0000.00818.07
8.2.40.0000.00819.88
8.2.30.0060.00319.90
8.2.20.0000.00717.81
8.2.10.0000.00718.12
8.2.00.0040.00417.68
8.1.280.0070.01025.92
8.1.270.0060.00323.91
8.1.260.0160.00726.35
8.1.250.0030.00528.09
8.1.240.0040.00422.06
8.1.230.0000.01118.97
8.1.220.0000.00917.74
8.1.210.0050.00318.77
8.1.200.0060.00317.35
8.1.190.0040.00417.35
8.1.180.0070.00319.01
8.1.170.0050.00318.66
8.1.160.0040.00421.86
8.1.150.0070.00018.77
8.1.140.0040.00417.27
8.1.130.0030.00317.84
8.1.120.0000.00717.30
8.1.110.0040.00417.45
8.1.100.0040.00417.27
8.1.90.0070.00017.43
8.1.80.0000.00817.42
8.1.70.0030.00317.24
8.1.60.0070.00017.52
8.1.50.0040.00417.45
8.1.40.0000.00817.54
8.1.30.0030.00617.68
8.1.20.0000.00717.61
8.1.10.0000.00717.59
8.1.00.0040.00417.39
8.0.300.0040.00418.77
8.0.290.0040.00417.05
8.0.280.0000.00818.36
8.0.270.0030.00317.26
8.0.260.0060.00017.26
8.0.250.0000.00717.05
8.0.240.0030.00317.03
8.0.230.0000.00717.01
8.0.220.0000.00716.98
8.0.210.0040.00416.95
8.0.200.0060.00016.93
8.0.190.0070.00017.05
8.0.180.0000.00816.98
8.0.170.0050.00316.97
8.0.160.0000.00716.95
8.0.150.0030.00316.97
8.0.140.0030.00316.98
8.0.130.0000.00613.43
8.0.120.0040.00416.93
8.0.110.0000.00716.93
8.0.100.0050.00216.88
8.0.90.0040.00416.74
8.0.80.0060.01316.83
8.0.70.0050.00216.78
8.0.60.0000.00816.71
8.0.50.0000.00716.73
8.0.30.0100.01217.10
8.0.20.0060.01317.40
8.0.10.0070.00017.03
8.0.00.0070.01316.79
7.4.330.0040.00415.03
7.4.320.0030.00316.37
7.4.300.0030.00316.34
7.4.290.0040.00416.45
7.4.280.0000.00816.48
7.4.270.0000.00716.41
7.4.260.0040.00416.41
7.4.250.0040.00416.50
7.4.240.0050.00316.48
7.4.230.0000.00716.28
7.4.220.0090.00916.34
7.4.210.0030.01316.53
7.4.200.0040.00416.28
7.4.160.0050.01116.34
7.4.150.0120.00917.40
7.4.140.0080.01317.86
7.4.130.0130.00416.50
7.4.120.0120.00516.46
7.4.110.0100.01016.66
7.4.100.0110.00716.39
7.4.90.0110.01116.47
7.4.80.0030.01919.39
7.4.70.0170.00716.38
7.4.60.0100.01016.59
7.4.50.0060.00316.26
7.4.40.0040.01416.45
7.4.30.0070.01516.49
7.4.00.0040.01414.69
7.3.330.0030.00313.30
7.3.320.0000.00613.18
7.3.310.0000.00816.41
7.3.300.0060.00316.32
7.3.290.0090.01016.37
7.3.280.0080.01216.34
7.3.270.0100.00717.40
7.3.260.0030.01516.38
7.3.250.0130.01216.46
7.3.240.0090.00916.66
7.3.230.0060.01216.43
7.3.210.0070.01116.22
7.3.200.0100.01419.39
7.3.190.0120.00616.50
7.3.180.0100.00716.36
7.3.170.0120.00416.63
7.3.160.0060.01016.57
7.3.10.0100.00316.43
7.3.00.0040.00716.44
7.2.330.0130.00616.69
7.2.320.0090.00916.60
7.2.310.0110.00716.53
7.2.300.0150.00516.69
7.2.290.0080.00816.48
7.2.130.0030.01016.71
7.2.120.0070.00716.80
7.2.110.0030.01516.71
7.2.100.0060.00916.95
7.2.90.0000.01516.73
7.2.80.0070.00716.96
7.2.70.0040.00816.86
7.2.60.0040.01116.94
7.2.50.0040.01116.88
7.2.40.0000.01516.80
7.2.30.0040.00917.00
7.2.20.0050.00516.99
7.2.10.0040.01116.77
7.2.00.0020.01118.21
7.1.250.0000.01215.52
7.1.200.0070.01015.81
7.1.100.0000.01217.91
7.1.70.0030.00716.91
7.1.60.0090.00916.89
7.1.50.0070.01016.88
7.1.00.0070.07722.46
7.0.200.0060.01216.63
7.0.140.0030.06721.96
7.0.60.0030.06719.95
7.0.50.0070.05717.86
7.0.40.0000.04720.00
7.0.30.0300.08020.13
7.0.20.0130.05720.09
7.0.10.0100.04020.12
7.0.00.0070.08020.29
5.6.280.0070.07721.07
5.6.210.0070.04320.50
5.6.200.0170.08718.12
5.6.190.0000.06020.45
5.6.180.0230.09020.67
5.6.170.0270.08320.63
5.6.160.0030.09720.50
5.6.150.0070.04318.19
5.6.140.0030.04718.09
5.6.130.0030.09018.21
5.6.120.0030.09721.03
5.6.110.0170.07721.11
5.6.100.0100.09021.07
5.6.90.0130.09020.97
5.6.80.0070.08720.43
5.6.70.4200.04320.47
5.5.350.0130.08720.38
5.5.340.0070.06317.98
5.5.330.0030.05020.47
5.5.320.0270.05020.28
5.5.310.0170.06020.20
5.5.300.0000.05017.95
5.5.290.0030.08017.91
5.5.280.0000.05020.77
5.5.270.0030.05720.83
5.5.260.0130.08020.64
5.5.250.0130.09020.61
5.5.240.0330.07720.12
5.4.450.1500.05319.41
5.4.440.1870.05719.39
5.4.430.1670.05019.38
5.4.420.1770.05719.10
5.4.410.1830.05319.13
5.4.400.1770.05318.81
5.4.390.1670.05319.21
5.4.380.1800.06019.11
5.4.370.1530.04719.08
5.4.360.1600.04719.13
5.4.350.1770.05019.21
5.4.340.1770.05318.93
5.4.320.1730.06018.77
5.4.310.1930.05019.13
5.4.300.1630.04719.09
5.4.290.1900.05319.11
5.4.280.1870.03319.08
5.4.270.1600.05018.79
5.4.260.1570.05019.24
5.4.250.1600.04719.24
5.4.240.1530.04018.84
5.4.230.0370.04319.08
5.4.220.0000.06019.08
5.4.210.0030.06319.23
5.4.200.1000.05018.80
5.4.190.1330.04319.20
5.4.180.1570.04718.91
5.4.170.1770.05019.08
5.4.160.1930.06019.06
5.4.150.1830.04718.86
5.4.140.1430.04016.28
5.4.130.1600.04716.54
5.4.120.1530.03716.26
5.4.110.1670.04316.44
5.4.100.1800.06016.50
5.4.90.0030.04316.39
5.4.80.0270.04716.43
5.4.70.0900.04016.44
5.4.60.1100.04716.38
5.4.50.1270.04316.39
5.4.40.1270.04716.46
5.4.30.1330.04016.04
5.4.20.1670.05016.18
5.4.10.1400.04716.20
5.4.00.1700.06016.00
5.3.290.1430.04714.76
5.3.280.1400.04314.52
5.3.270.0400.06714.65
5.3.260.0130.05314.54
5.3.250.0170.04314.62
5.3.240.0130.05714.65
5.3.230.0170.08714.69
5.3.220.0170.05014.52
5.3.210.0200.06714.51
5.3.200.0230.04014.42
5.3.190.0130.04714.36
5.3.180.0300.08014.39
5.3.170.0170.06314.40
5.3.160.0230.04314.39
5.3.150.0200.04014.51
5.3.140.0200.04714.46
5.3.130.0130.04714.45
5.3.120.0200.04314.39
5.3.110.0070.05714.36
5.3.100.0200.04313.89
5.3.90.0270.08014.03
5.3.80.0130.05713.86
5.3.70.0070.05013.87
5.3.60.0230.06013.80
5.3.50.0230.04713.80
5.3.40.0100.05013.85
5.3.30.0200.09013.69
5.3.20.0170.04313.74
5.3.10.0200.05313.49
5.3.00.0100.05313.54
5.2.170.0130.04711.08
5.2.160.0170.03011.05
5.2.150.0130.05011.05
5.2.140.0170.07010.98
5.2.130.0170.04311.11
5.2.120.0130.03710.94
5.2.110.0200.03011.04
5.2.100.0170.03711.02
5.2.90.0230.04011.04
5.2.80.0170.06010.93
5.2.70.0130.04710.96
5.2.60.0170.05711.13
5.2.50.0230.06010.86
5.2.40.0170.03310.88
5.2.30.0100.03711.13
5.2.20.0170.04010.89
5.2.10.0130.03310.77
5.2.00.0170.03010.66
5.1.60.0130.02710.21
5.1.50.0170.0509.89
5.1.40.0100.0409.90
5.1.30.0130.03010.23
5.1.20.0200.06710.27
5.1.10.0100.04010.05
5.1.00.0100.03310.06
5.0.50.0100.0278.52
5.0.40.0030.0638.46
5.0.30.0030.0478.37
5.0.20.0070.0278.32
5.0.10.0070.0378.32
5.0.00.0070.0408.14
4.4.90.0070.0608.11
4.4.80.0030.0278.11
4.4.70.0030.0278.11
4.4.60.0070.0378.11
4.4.50.0100.0478.11
4.4.40.0070.0578.11
4.4.30.0070.0378.11
4.4.20.0070.0438.11
4.4.10.0030.0278.11
4.4.00.0030.0508.11
4.3.110.0170.0138.11
4.3.100.0030.0278.11
4.3.90.0070.0238.11
4.3.80.0030.0378.11
4.3.70.0070.0278.11
4.3.60.0100.0208.11
4.3.50.0030.0278.11
4.3.40.0070.0338.11
4.3.30.0030.0278.11
4.3.20.0070.0208.11
4.3.10.0030.0438.11
4.3.00.0000.0278.11

preferences:
64.84 ms | 400 KiB | 5 Q