3v4l.org

run code in 300+ PHP versions simultaneously
<?php for ($i=0;$i<20;$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)
8.3.70.0150.00016.63
8.3.60.0090.00618.30
8.3.50.0170.00622.94
8.3.40.0120.00318.79
8.3.30.0110.00419.03
8.3.20.0100.00720.31
8.3.10.0040.00421.73
8.3.00.0140.00617.89
8.2.190.0180.00016.58
8.2.180.0040.01816.63
8.2.170.0120.00322.96
8.2.160.0070.01320.49
8.2.150.0060.00324.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0040.00419.89
8.2.110.0080.00022.12
8.2.100.0120.00017.97
8.2.90.0030.00619.13
8.2.80.0050.00317.97
8.2.70.0080.00017.63
8.2.60.0000.00818.03
8.2.50.0080.00018.07
8.2.40.0080.00020.01
8.2.30.0030.00619.84
8.2.20.0000.00817.73
8.2.10.0040.00418.22
8.2.00.0070.00017.82
8.1.280.0070.01025.92
8.1.270.0060.00323.96
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0090.00023.85
8.1.230.0070.00319.05
8.1.220.0030.00517.76
8.1.210.0000.00918.77
8.1.200.0040.00417.35
8.1.190.0000.00817.25
8.1.180.0060.00318.10
8.1.170.0000.00818.49
8.1.160.0080.00021.96
8.1.150.0040.00418.84
8.1.140.0000.00817.26
8.1.130.0070.00017.79
8.1.120.0000.00717.30
8.1.110.0070.00017.36
8.1.100.0040.00417.32
8.1.90.0070.00017.38
8.1.80.0040.00417.32
8.1.70.0000.00717.42
8.1.60.0040.00417.50
8.1.50.0000.00917.54
8.1.40.0060.00317.52
8.1.30.0000.00817.63
8.1.20.0040.00417.54
8.1.10.0080.00017.59
8.1.00.0030.00517.50
8.0.300.0000.00720.64
8.0.290.0040.00417.05
8.0.280.0030.00318.47
8.0.270.0070.00017.23
8.0.260.0060.00017.23
8.0.250.0000.00716.91
8.0.240.0000.00717.00
8.0.230.0030.00516.96
8.0.220.0000.00716.98
8.0.210.0000.00816.88
8.0.200.0040.00417.04
8.0.190.0040.00417.07
8.0.180.0040.00416.85
8.0.170.0000.00816.97
8.0.160.0040.00416.98
8.0.150.0030.00516.94
8.0.140.0050.00216.97
8.0.130.0060.00013.42
8.0.120.0000.00716.90
8.0.110.0040.00416.88
8.0.100.0040.00416.86
8.0.90.0040.00416.80
8.0.80.0100.01116.86
8.0.70.0070.00016.78
8.0.60.0020.00516.91
8.0.50.0000.00716.95
8.0.30.0080.01116.96
8.0.20.0090.01017.43
8.0.10.0000.00716.83
8.0.00.0090.00916.84
7.4.330.0040.00715.03
7.4.320.0040.00716.57
7.4.300.0000.01116.46
7.4.290.0040.00816.45
7.4.280.0060.00616.53
7.4.270.0030.01016.43
7.4.260.0000.01216.43
7.4.250.0050.00816.43
7.4.240.0040.00816.48
7.4.230.0030.00916.36
7.4.220.0090.01816.38
7.4.210.0150.01916.57
7.4.200.0040.00816.26
7.4.160.0150.01116.38
7.4.150.0060.02317.40
7.4.140.0110.02317.86
7.4.130.0080.01816.55
7.4.120.0110.01516.43
7.4.110.0110.02616.36
7.4.100.0070.02216.59
7.4.90.0150.01216.31
7.4.80.0030.02219.39
7.4.70.0100.02716.56
7.4.60.0040.02116.57
7.4.50.0030.01416.26
7.4.40.0110.01516.35
7.4.30.0090.01516.57
7.4.00.0070.02015.00
7.3.330.0030.00813.14
7.3.320.0080.00313.32
7.3.310.0000.01216.43
7.3.300.0000.01316.37
7.3.290.0130.01416.34
7.3.280.0050.02316.32
7.3.270.0030.02317.40
7.3.260.0030.02416.55
7.3.250.0120.02016.40
7.3.240.0100.01616.37
7.3.230.0040.02016.61
7.3.210.0090.01516.68
7.3.200.0120.01519.39
7.3.190.0120.01516.54
7.3.180.0060.02116.30
7.3.170.0130.01316.43
7.3.160.0150.00916.55
7.3.120.0130.01014.93
7.3.110.0130.01715.04
7.3.100.0070.01614.86
7.3.90.0070.02214.96
7.3.80.0060.01614.85
7.3.70.0030.01214.90
7.3.60.0090.01214.73
7.3.50.0070.01414.63
7.3.40.0100.01014.57
7.3.30.0100.01014.74
7.3.20.0000.01816.38
7.3.10.0040.01516.71
7.3.00.0070.01016.51
7.2.330.0100.03016.73
7.2.320.0130.02916.34
7.2.310.0070.02516.66
7.2.300.0170.01016.36
7.2.290.0030.02316.77
7.2.250.0070.02115.20
7.2.240.0100.01614.93
7.2.230.0060.01914.93
7.2.220.0000.02514.90
7.2.210.0060.01615.16
7.2.200.0030.01914.95
7.2.190.0060.01915.10
7.2.180.0090.01514.97
7.2.170.0040.02215.13
7.2.00.0030.02119.49
7.1.330.0090.01915.75
7.1.320.0100.01615.44
7.1.310.0070.02015.77
7.1.300.0030.02415.86
7.1.290.0060.01915.87
7.1.280.0000.02615.71
7.1.270.0070.02015.66
7.1.260.0070.01415.78
7.1.100.0030.02017.98
7.1.70.0070.02016.80
7.1.60.0030.02317.29
7.1.50.0070.01316.95
7.1.00.0030.08722.30
7.0.200.0090.02116.77
7.0.140.0100.08721.95
7.0.60.0100.09319.86
7.0.50.0070.05017.79
7.0.40.0070.07019.90
7.0.30.0700.07720.09
7.0.20.0230.08720.09
7.0.10.0300.07020.16
7.0.00.0030.05320.00
5.6.280.0030.15721.13
5.6.210.0030.11320.74
5.6.200.0130.13318.20
5.6.190.0030.14320.61
5.6.180.0270.11320.68
5.6.170.0230.08720.45
5.6.160.0030.09320.50
5.6.150.0100.14318.13
5.6.140.0030.10718.12
5.6.130.0030.15318.08
5.6.120.0030.13321.05
5.6.110.0070.09021.05
5.6.100.0070.08721.04
5.6.90.0100.15721.00
5.6.80.0100.14320.54
5.5.350.0200.07320.44
5.5.340.0030.09717.95
5.5.330.0070.14320.12
5.5.320.0130.14320.08
5.5.310.0430.12020.17
5.5.300.0030.11317.89
5.5.290.0070.11317.89
5.5.280.0200.09720.68
5.5.270.0070.15720.99
5.5.260.0300.10720.79
5.5.250.0070.15020.81
5.5.240.0000.10320.29
5.4.450.0270.10719.43
5.4.440.0270.24019.15
5.4.430.0170.19319.52
5.4.420.0200.18019.30
5.4.410.0030.19318.94
5.4.400.0130.18018.83
5.4.390.0170.18318.72
5.4.380.0130.18718.64
5.4.370.0130.18318.71
5.4.360.0230.17718.55
5.4.350.0200.17718.73
5.4.340.0300.16318.74
5.4.320.0130.19018.52
5.4.310.0300.17018.73
5.4.300.0300.17018.70
5.4.290.0330.16718.70
5.4.280.0270.17318.56
5.4.270.0200.18318.52
5.4.260.0100.19318.71
5.4.250.0070.19718.56
5.4.240.0300.17018.74
5.4.230.0230.18018.73
5.4.220.0070.20018.53
5.4.210.0170.18018.56
5.4.200.0170.18016.55
5.4.190.0200.17718.72
5.4.180.0200.18018.50
5.4.170.0200.18318.73
5.4.160.0270.17018.66
5.4.150.0230.17318.64
5.4.140.0000.19716.09
5.4.130.0130.18716.20
5.4.120.0100.18316.19
5.4.110.0170.17716.28
5.4.100.0200.18316.26
5.4.90.0170.18016.20
5.4.80.0170.18016.18
5.4.70.0100.19016.16
5.4.60.0130.18716.24
5.4.50.0100.18716.21
5.4.40.0100.19316.18
5.4.30.0200.17716.34
5.4.20.0270.17316.17
5.4.10.0270.17016.39
5.4.00.0170.17715.55
5.3.290.0230.17714.81
5.3.280.0230.16714.62
5.3.270.0270.16714.67
5.3.260.0230.17314.70
5.3.250.0200.17714.76
5.3.240.0130.17714.70
5.3.230.0230.17314.61
5.3.220.0100.18714.72
5.3.210.0230.17714.61
5.3.200.0300.16714.52
5.3.190.0300.16714.64
5.3.180.0170.17714.72
5.3.170.0130.17314.60
5.3.160.0100.18014.68
5.3.150.0170.17014.68
5.3.140.0100.18014.53
5.3.130.0130.17714.56
5.3.120.0130.18014.50
5.3.110.0200.17714.60
5.3.100.0200.16714.18
5.3.90.0170.17314.03
5.3.80.0170.18014.17
5.3.70.0200.17014.01
5.3.60.0170.17314.03
5.3.50.0130.18313.99
5.3.40.0130.18013.99
5.3.30.0270.16713.95
5.3.20.0130.18013.75
5.3.10.0200.17313.67
5.3.00.0170.12013.61
5.2.170.0130.17011.24
5.2.160.0130.17011.26
5.2.150.0100.17311.15
5.2.140.0130.16311.16
5.2.130.0170.16711.11
5.2.120.0070.17711.17
5.2.110.0130.16311.10
5.2.100.0130.16311.08
5.2.90.0170.16711.17
5.2.80.0130.17011.31
5.2.70.0130.16711.13
5.2.60.0100.17011.06
5.2.50.0200.15711.11
5.2.40.0100.16711.00
5.2.30.0070.18010.95
5.2.20.0130.16011.07
5.2.10.0070.16710.98
5.2.00.0130.16010.82
5.1.60.0000.16710.09
5.1.50.0100.15710.10
5.1.40.0100.16010.07
5.1.30.0070.18310.45
5.1.20.0070.17010.52
5.1.10.0100.20010.36
5.1.00.0030.17310.14
5.0.50.0030.1809.28
5.0.40.0070.1739.28
5.0.30.0100.1809.28
5.0.20.0100.1679.28
5.0.10.0070.1679.28
5.0.00.0070.1839.28
4.4.90.0070.1709.28
4.4.80.0030.1709.28
4.4.70.0030.1639.28
4.4.60.0000.1639.28
4.4.50.0000.1639.28
4.4.40.0100.1679.28
4.4.30.0030.1709.28
4.4.20.0070.1639.28
4.4.10.0000.1739.28
4.4.00.0030.1809.28
4.3.110.0000.1709.28
4.3.100.0030.1639.28
4.3.90.0000.1679.28
4.3.80.0070.1779.28
4.3.70.0030.1679.28
4.3.60.0030.1609.28
4.3.50.0070.1609.28
4.3.40.0070.1679.28
4.3.30.0000.1739.28
4.3.20.0030.1709.28
4.3.10.0030.1709.28
4.3.00.0200.13314.82

preferences:
61.62 ms | 401 KiB | 5 Q