3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(1,2); $b = array(3); print_r(array_merge($a,$b));

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)
8.3.40.0040.01118.73
8.3.30.0070.00718.78
8.3.20.0040.00420.21
8.3.10.0040.00423.66
8.3.00.0080.00020.77
8.2.170.0110.00622.96
8.2.160.0100.00320.38
8.2.150.0000.00824.18
8.2.140.0000.00824.66
8.2.130.0080.00026.16
8.2.120.0080.00020.97
8.2.110.0060.00322.19
8.2.100.0080.00320.35
8.2.90.0090.00319.14
8.2.80.0050.00317.97
8.2.70.0070.00317.63
8.2.60.0080.00517.90
8.2.50.0030.00518.07
8.2.40.0040.00419.82
8.2.30.0000.00718.09
8.2.20.0050.00317.55
8.2.10.0000.00818.02
8.2.00.0070.00017.69
8.1.270.0080.00023.80
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00323.98
8.1.230.0070.00418.98
8.1.220.0030.00617.74
8.1.210.0050.00318.77
8.1.200.0100.00017.23
8.1.190.0000.00817.10
8.1.180.0040.00418.10
8.1.170.0030.00518.39
8.1.160.0040.00421.81
8.1.150.0000.00718.56
8.1.140.0000.00717.43
8.1.130.0040.00417.82
8.1.120.0070.00017.39
8.1.110.0040.00417.28
8.1.100.0040.00417.42
8.1.90.0050.00317.38
8.1.80.0040.00417.40
8.1.70.0040.00417.24
8.1.60.0030.00617.41
8.1.50.0000.00917.37
8.1.40.0000.00817.46
8.1.30.0040.00417.55
8.1.20.0040.00417.58
8.1.10.0030.00517.48
8.1.00.0040.00417.21
8.0.300.0060.00318.77
8.0.290.0040.00416.63
8.0.280.0000.00718.42
8.0.270.0070.00017.16
8.0.260.0060.00017.18
8.0.250.0000.00716.86
8.0.240.0000.00716.88
8.0.230.0030.00316.85
8.0.220.0030.00316.72
8.0.210.0000.00816.79
8.0.200.0000.00816.89
8.0.190.0050.00216.77
8.0.180.0050.00316.74
8.0.170.0030.00516.80
8.0.160.0030.00316.65
8.0.150.0030.00616.76
8.0.140.0030.00316.77
8.0.130.0050.00013.25
8.0.120.0060.00316.67
8.0.110.0070.00016.83
8.0.100.0070.00016.88
8.0.90.0040.00316.86
8.0.80.0070.00716.86
8.0.70.0000.00816.80
8.0.60.0040.00416.93
8.0.50.0000.00816.61
8.0.30.0060.01216.93
8.0.20.0100.00917.40
8.0.10.0000.00817.00
8.0.00.0120.00616.65
7.4.330.0050.00015.01
7.4.320.0000.00616.55
7.4.300.0040.00416.42
7.4.290.0030.00316.46
7.4.280.0000.00816.51
7.4.270.0070.00016.45
7.4.260.0000.00716.52
7.4.250.0070.00016.46
7.4.240.0000.00816.43
7.4.230.0000.00716.34
7.4.220.0070.01016.59
7.4.210.0030.01116.63
7.4.200.0070.00016.63
7.4.160.0030.01916.28
7.4.150.0200.00717.40
7.4.140.0120.00817.86
7.4.130.0120.00716.57
7.4.120.0080.00816.28
7.4.110.0000.01716.45
7.4.100.0040.01516.48
7.4.90.0090.00916.34
7.4.80.0100.01019.39
7.4.70.0100.00616.46
7.4.60.0120.00416.38
7.4.50.0090.00016.41
7.4.40.0100.01016.30
7.4.30.0090.00616.42
7.4.00.0100.00515.02
7.3.330.0050.00012.86
7.3.320.0000.00513.00
7.3.310.0000.00716.08
7.3.300.0000.00715.98
7.3.290.0030.01516.18
7.3.280.0060.00816.11
7.3.270.0120.00617.40
7.3.260.0030.01416.15
7.3.250.0150.00216.20
7.3.240.0080.01216.44
7.3.230.0060.01116.43
7.3.210.0100.00616.13
7.3.200.0110.00619.39
7.3.190.0090.00616.16
7.3.180.0070.01016.25
7.3.170.0100.00716.27
7.3.160.0100.00616.35
7.3.120.0090.00514.81
7.3.110.0050.01314.63
7.3.100.0020.01114.68
7.3.90.0050.01014.56
7.3.80.0070.00514.65
7.3.70.0050.00814.54
7.3.60.0030.01114.73
7.3.50.0070.00714.50
7.3.40.0060.00714.61
7.3.30.0080.00614.48
7.3.20.0030.00616.51
7.3.10.0090.00616.48
7.3.00.0070.00816.43
7.2.330.0070.01016.51
7.2.320.0060.01016.43
7.2.310.0000.02216.59
7.2.300.0030.01316.41
7.2.290.0050.01616.49
7.2.250.0070.01114.79
7.2.240.0080.00815.01
7.2.230.0070.00914.68
7.2.220.0050.01014.86
7.2.210.0060.00814.85
7.2.200.0040.01014.73
7.2.190.0070.00814.60
7.2.180.0090.00714.79
7.2.170.0040.01214.62
7.2.160.0000.01414.88
7.2.150.0080.00816.46
7.2.140.0060.01016.29
7.2.130.0060.00816.46
7.2.120.0070.00716.34
7.2.110.0080.00516.41
7.2.100.0100.00716.45
7.2.90.0070.01016.46
7.2.80.0030.01116.59
7.2.70.0100.00716.52
7.2.60.0110.00916.53
7.2.50.0120.00316.67
7.2.40.0070.00916.61
7.2.30.0080.00916.50
7.2.20.0090.00616.69
7.2.10.0100.00916.60
7.2.00.0070.00617.41
7.1.330.0040.00815.71
7.1.320.0090.00415.82
7.1.310.0100.00415.72
7.1.300.0050.01015.76
7.1.290.0060.01015.45
7.1.280.0040.00915.62
7.1.270.0080.00515.53
7.1.260.0070.00315.67
7.1.250.0080.00415.49
7.1.100.0030.01317.77
7.1.70.0000.01017.02
7.1.60.0050.00517.08
7.1.50.0040.00716.82
7.1.40.0060.00616.61
7.1.30.0000.01216.49
7.1.20.0040.00716.92
7.1.10.0110.00016.81
7.1.00.0000.01116.53
7.0.200.0000.00816.50
7.0.190.0000.00816.76
7.0.180.0030.00916.28
7.0.170.0000.01216.13
7.0.160.0060.00316.26
7.0.150.0040.00416.34
7.0.140.0000.00716.11
7.0.130.0030.00916.53
7.0.120.0060.00616.38
7.0.110.0000.00816.36
7.0.100.0000.00816.54
7.0.90.0030.00516.32
7.0.80.0040.00416.51
7.0.70.0000.01016.23
7.0.60.0030.01016.25
7.0.50.0000.00716.39
7.0.40.0050.00215.40
7.0.30.0050.00315.40
7.0.20.0000.00715.40
7.0.10.0000.00815.40
7.0.00.0000.00815.40
5.6.300.0030.04420.67
5.6.290.0000.04320.90
5.6.280.0000.04520.87
5.6.270.0070.03720.98
5.6.260.0000.04420.87
5.6.250.0030.03920.86
5.6.240.0030.04020.96
5.6.230.0100.04520.89
5.6.220.0030.03920.93
5.6.210.0070.05620.62
5.6.200.0030.04120.86
5.6.190.0060.03820.82
5.6.180.0030.04121.04
5.6.170.0000.04620.84
5.6.160.0100.04620.82
5.6.150.0000.04520.76
5.6.140.0100.03921.04
5.6.130.0030.04320.98
5.6.120.0030.04620.77
5.6.110.0100.06520.97
5.6.100.0070.04920.75
5.6.90.0030.04020.84
5.6.80.0000.04220.24
5.6.70.0040.03920.11
5.6.60.0040.03920.35
5.6.50.0030.03820.11
5.6.40.0030.04720.18
5.6.30.0030.05020.28
5.6.20.0100.05420.29
5.6.10.0030.03920.38
5.6.00.0030.04320.16
5.5.380.0030.03717.48
5.5.370.0060.03617.41
5.5.360.0070.03617.47
5.5.350.0030.03817.52
5.5.340.0070.03518.09
5.5.330.0040.04317.70
5.5.320.0030.05017.86
5.5.310.0030.03918.10
5.5.300.0040.04218.03
5.5.290.0040.03918.09
5.5.280.0030.04518.18
5.5.270.0040.03918.00
5.5.260.0070.07517.73
5.5.250.0060.06417.87
5.5.240.0030.03717.56
5.5.230.0000.04717.08
5.5.220.0290.02617.11
5.5.210.0070.03617.47
5.5.200.0100.06017.36
5.5.190.0030.04217.41
5.5.180.0000.04517.41
5.5.160.0000.04117.41
5.5.150.0030.04117.40
5.5.140.0030.03817.41
5.5.130.0090.03217.36
5.5.120.0000.05817.35
5.5.110.0030.03817.47
5.5.100.0000.04217.32
5.5.90.0030.04017.34
5.5.80.0130.03317.34
5.5.70.0030.06317.24
5.5.60.0060.07817.10
5.5.50.0070.03617.25
5.5.40.0030.04117.32
5.5.30.0060.03517.36
5.5.20.0070.07917.24
5.5.10.0000.05217.29
5.5.00.0100.08417.31
5.4.450.0060.04719.23
5.4.440.0040.03919.23
5.4.430.0070.03619.21
5.4.420.0030.05719.27
5.4.410.0030.03819.13
5.4.400.0030.03719.14
5.4.390.0030.03919.09
5.4.380.0000.04119.03
5.4.370.0030.04618.91
5.4.360.0030.08318.89
5.4.350.0030.06218.93
5.4.340.0030.03818.95
5.4.320.0060.03818.93
5.4.310.0170.03319.16
5.4.300.0070.03319.02
5.4.290.0030.04119.20
5.4.280.0030.03718.93
5.4.270.0000.08619.03
5.4.260.0030.05618.87
5.4.250.0070.04319.08
5.4.240.0000.07419.02
5.4.230.0040.03918.94
5.4.220.0030.04018.93
5.4.210.0070.04719.15
5.4.200.0070.03418.89
5.4.190.0070.06619.01
5.4.180.0070.03418.94
5.4.170.0000.08319.05
5.4.160.0100.07519.00
5.4.150.0100.03319.01
5.4.140.0100.05916.72
5.4.130.0070.03716.66
5.4.120.0060.03416.77
5.4.110.0030.03916.54
5.4.100.0000.04116.70
5.4.90.0000.04316.49
5.4.80.0030.05116.69
5.4.70.0000.06516.57
5.4.60.0030.03816.68
5.4.50.0100.03316.68
5.4.40.0030.06216.72
5.4.30.0040.03516.55
5.4.20.0000.03916.62
5.4.10.0060.07116.67
5.4.00.0030.04315.90
5.3.290.0030.03815.40
5.3.280.0030.04615.40
5.3.270.0000.04015.40
5.3.260.0100.05015.40
5.3.250.0040.03515.40
5.3.240.0060.03815.40
5.3.230.0030.03715.40
5.3.220.0070.03615.40
5.3.210.0070.03715.40
5.3.200.0030.03615.40
5.3.190.0000.04015.40
5.3.180.0030.07915.40
5.3.170.0030.04615.40
5.3.160.0030.03715.40
5.3.150.0030.03515.40
5.3.140.0030.04515.40
5.3.130.0070.07615.40
5.3.120.0000.04615.40
5.3.110.0100.07215.40
5.3.100.0030.05215.40
5.3.90.0070.06915.40
5.3.80.0030.03415.40
5.3.70.0070.05915.40
5.3.60.0000.07715.40
5.3.50.0000.06115.40
5.3.40.0070.07415.40
5.3.30.0000.05815.40
5.3.20.0030.04215.40
5.3.10.0000.03915.40
5.3.00.0030.04715.40

preferences:
54.75 ms | 400 KiB | 5 Q