3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [0 => 'a', 1=> 'b', 2=> 'c']; $b = [ 1=> 'b', 2=> 'c',3=> 'd']; var_dump(array_merge($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)
8.3.60.0070.00718.18
8.3.50.0100.01016.38
8.3.40.0140.00718.76
8.3.30.0090.00918.92
8.3.20.0040.00420.21
8.3.10.0030.00622.10
8.3.00.0040.01122.41
8.2.180.0130.01016.38
8.2.170.0120.00322.96
8.2.160.0070.00719.21
8.2.150.0040.00424.18
8.2.140.0060.00324.66
8.2.130.0000.00726.16
8.2.120.0100.00619.23
8.2.110.0090.00022.08
8.2.100.0100.00319.52
8.2.90.0050.00319.09
8.2.80.0090.00017.97
8.2.70.0000.00917.50
8.2.60.0030.00617.80
8.2.50.0060.00318.07
8.2.40.0030.00619.94
8.2.30.0040.00417.91
8.2.20.0000.00717.64
8.2.10.0030.00317.59
8.2.00.0040.00417.59
8.1.280.0170.00325.92
8.1.270.0040.00421.95
8.1.260.0090.00026.35
8.1.250.0070.00328.09
8.1.240.0030.00623.79
8.1.230.0080.00418.99
8.1.220.0040.00417.78
8.1.210.0000.00818.77
8.1.200.0060.00317.22
8.1.190.0000.00717.40
8.1.180.0000.00818.66
8.1.170.0000.00818.31
8.1.160.0040.00422.07
8.1.150.0040.00418.57
8.1.140.0040.00417.38
8.1.130.0070.00017.76
8.1.120.0000.00817.41
8.1.110.0000.00717.37
8.1.100.0040.00417.26
8.1.90.0070.00017.34
8.1.80.0050.00217.34
8.1.70.0000.00817.27
8.1.60.0080.00417.53
8.1.50.0030.00517.35
8.1.40.0000.00917.29
8.1.30.0000.00717.56
8.1.20.0040.00417.47
8.1.10.0000.00717.48
8.1.00.0040.00417.29
8.0.300.0040.00418.77
8.0.290.0040.00417.15
8.0.280.0000.00718.25
8.0.270.0070.00017.18
8.0.260.0030.00316.78
8.0.250.0070.00016.75
8.0.240.0030.00316.89
8.0.230.0030.00316.83
8.0.220.0030.00416.83
8.0.210.0070.00016.88
8.0.200.0070.00016.90
8.0.190.0080.00016.79
8.0.180.0050.00216.81
8.0.170.0080.00016.82
8.0.160.0000.00716.75
8.0.150.0030.00316.73
8.0.140.0040.00416.73
8.0.130.0030.00313.28
8.0.120.0000.00816.71
8.0.110.0000.00716.84
8.0.100.0000.00716.93
8.0.90.0070.00016.61
8.0.80.0120.00316.80
8.0.70.0000.00716.65
8.0.60.0030.00516.89
8.0.50.0070.00016.80
8.0.30.0100.01216.92
8.0.20.0110.00817.40
8.0.10.0040.00416.88
8.0.00.0100.01016.66
7.4.330.0050.00015.00
7.4.320.0060.00016.53
7.4.300.0040.00416.52
7.4.290.0000.00816.58
7.4.280.0030.00316.44
7.4.270.0000.00616.48
7.4.260.0040.00416.41
7.4.250.0040.00416.34
7.4.240.0020.00516.46
7.4.230.0030.00316.54
7.4.220.0070.01016.56
7.4.210.0050.01116.55
7.4.200.0030.00316.61
7.4.190.0000.00816.50
7.4.160.0120.00316.41
7.4.150.0060.01117.40
7.4.140.0080.01017.86
7.4.130.0120.01116.39
7.4.120.0020.01516.47
7.4.110.0110.00616.50
7.4.100.0060.02016.52
7.4.90.0070.01116.43
7.4.80.0100.01319.39
7.4.70.0060.01016.30
7.4.60.0110.00516.43
7.4.50.0040.00416.43
7.4.40.0080.00322.77
7.4.30.0060.01016.36
7.4.00.0120.00414.80
7.3.330.0040.00413.00
7.3.320.0000.00513.04
7.3.310.0000.00715.98
7.3.300.0030.00316.17
7.3.290.0060.00816.04
7.3.280.0090.00916.18
7.3.270.0090.01217.40
7.3.260.0100.00716.45
7.3.250.0090.01016.38
7.3.240.0160.00316.25
7.3.230.0130.00316.39
7.3.210.0080.01116.16
7.3.200.0140.00419.39
7.3.190.0150.00316.11
7.3.180.0060.01016.03
7.3.170.0070.01016.27
7.3.160.0120.00916.17
7.3.120.0100.00614.39
7.3.110.0000.01614.49
7.3.100.0030.00814.75
7.3.90.0040.01414.53
7.3.80.0060.00614.65
7.3.70.0090.00614.52
7.3.60.0040.00714.44
7.3.50.0030.01214.55
7.3.40.0060.01014.69
7.3.30.0070.00314.42
7.3.20.0080.00316.30
7.3.10.0060.01116.39
7.3.00.0060.01016.22
7.2.330.0130.01016.49
7.2.320.0120.01316.41
7.2.310.0030.01516.52
7.2.300.0060.01216.23
7.2.290.0080.00816.21
7.2.240.0090.00614.85
7.2.230.0100.00314.43
7.2.220.0060.01014.74
7.2.210.0060.00615.07
7.2.200.0070.00714.62
7.2.190.0000.01414.84
7.2.180.0090.00314.42
7.2.170.0070.01014.61
7.2.160.0060.00914.72
7.2.150.0070.01016.70
7.2.140.0030.00916.67
7.2.130.0040.01216.76
7.2.120.0030.01416.75
7.2.110.0090.00916.56
7.2.100.0070.00716.82
7.2.90.0070.01016.55
7.2.80.0060.01016.64
7.2.70.0030.01016.88
7.2.60.0070.00716.61
7.2.50.0030.01416.76
7.2.40.0040.00816.76
7.2.30.0070.00716.82
7.2.20.0100.00316.65
7.2.10.0120.00016.80
7.2.00.0030.01118.12
7.1.330.0160.00015.50
7.1.320.0070.00315.68
7.1.310.0060.00915.80
7.1.300.0040.01415.76
7.1.290.0000.01515.86
7.1.280.0100.00715.68
7.1.270.0030.01415.63
7.1.260.0070.01015.87
7.1.250.0070.00415.77
7.1.200.0000.00815.82
7.1.100.0040.00817.98
7.1.70.0030.00617.19
7.1.60.0100.01319.82
7.1.50.0000.02116.99
7.1.00.0030.03322.43
7.0.200.0040.00416.67
7.0.140.0030.07021.97
7.0.60.0130.07020.02
7.0.50.0100.07017.81
7.0.40.0070.09020.30
7.0.30.0230.04320.30
7.0.20.0230.04320.16
7.0.10.0230.09020.20
7.0.00.0170.04720.21
5.6.280.0100.08721.08
5.6.210.0100.07020.50
5.6.200.0130.03718.16
5.6.190.0170.08020.77
5.6.180.3530.04720.77
5.6.170.0200.05720.38
5.6.160.0030.04720.47
5.6.150.0070.05018.10
5.6.140.0100.08018.18
5.6.130.0100.06718.15
5.6.120.0100.04721.04
5.6.110.0130.07320.97
5.6.100.0100.07021.10
5.6.90.0070.08021.12
5.6.80.0100.06720.39
5.6.70.0330.07020.42
5.5.350.0030.04720.43
5.5.340.0130.06717.92
5.5.330.0030.04020.15
5.5.320.0200.05320.51
5.5.310.0100.05320.21
5.5.300.0200.06717.91
5.5.290.0030.05017.89
5.5.280.0130.07720.68
5.5.270.0000.05720.95
5.5.260.0070.04020.78
5.5.250.0100.07720.57
5.5.240.0100.06020.23
5.4.450.0870.06719.45
5.4.440.1000.07019.46
5.4.430.0030.06019.23
5.4.420.0830.05019.63
5.4.410.0670.05719.36
5.4.400.1200.07318.63
5.4.390.1530.05018.62
5.4.380.0270.07318.72
5.4.370.0200.04318.51
5.4.360.0130.05318.63
5.4.350.0130.05718.53
5.4.340.0130.05318.50
5.4.320.0050.03712.45
5.4.310.0060.04112.45
5.4.300.0090.04012.45
5.4.290.0030.04612.45
5.4.280.0070.04112.35
5.4.270.0070.04612.34
5.4.260.0130.04318.87
5.4.250.0230.05018.82
5.4.240.0030.06318.87
5.4.230.0170.06318.80
5.4.220.0070.05319.01
5.4.210.0070.05718.88
5.4.200.0030.05718.70
5.4.190.0130.05018.98
5.4.180.0100.05318.86
5.4.170.0130.07318.64
5.4.160.0030.06018.75
5.4.150.0100.07018.91
5.4.140.0070.05016.39
5.4.130.0200.03716.48
5.4.120.0200.03716.23
5.4.110.0170.04316.19
5.4.100.0100.05716.31
5.4.90.0170.04016.34
5.4.80.0070.05016.18
5.4.70.0030.05316.50
5.4.60.0070.05016.38
5.4.50.0100.04716.42
5.4.40.0030.05716.32
5.4.30.0100.06716.19
5.4.20.0170.06016.16
5.4.10.0100.05316.38
5.4.00.0130.04315.69
5.3.290.0070.04612.80
5.3.280.0070.05014.62
5.3.270.0100.05014.65
5.3.260.0100.05314.63
5.3.250.0100.06014.62
5.3.240.0070.05014.76
5.3.230.0070.05714.54
5.3.220.0130.05714.57
5.3.210.0030.06014.58
5.3.200.0200.03714.57
5.3.190.0070.05014.59
5.3.180.0130.05014.71
5.3.170.0070.05314.26
5.3.160.0070.05314.51
5.3.150.0070.05714.61
5.3.140.0030.07714.65
5.3.130.0100.05314.47
5.3.120.0130.05014.42
5.3.110.0130.06714.52
5.3.100.0030.05013.74
5.3.90.0000.05714.11
5.3.80.0100.04314.17
5.3.70.0100.05013.96
5.3.60.0000.05714.02
5.3.50.0030.05013.89
5.3.40.0100.05313.99
5.3.30.0170.03713.92
5.3.20.0070.04713.70
5.3.10.0170.04013.67
5.3.00.0070.04713.70
5.2.170.0030.04311.23
5.2.160.0070.03711.15
5.2.150.0070.04011.06
5.2.140.0070.04011.14
5.2.130.0070.03711.11
5.2.120.0000.04310.86
5.2.110.0100.03711.16
5.2.100.0070.04011.03
5.2.90.0000.05311.10
5.2.80.0000.04310.85
5.2.70.0100.03711.10
5.2.60.0100.04710.90
5.2.50.0030.05710.95
5.2.40.0030.04011.00
5.2.30.0070.04011.09
5.2.20.0070.03711.11
5.2.10.0100.05010.69
5.2.00.0030.04010.80
5.1.60.0030.03310.02
5.1.50.0030.03310.14
5.1.40.0030.03710.07
5.1.30.0030.03710.34
5.1.20.0000.06010.51
5.1.10.0000.04310.29
5.1.00.0070.03310.12
5.0.50.0100.0338.46
5.0.40.0070.0308.35
5.0.30.0070.0538.11
5.0.20.0070.0278.23
5.0.10.0070.0278.20
5.0.00.0000.0438.39
4.4.90.0000.0237.23
4.4.80.0070.0177.23
4.4.70.0030.0207.23
4.4.60.0070.0177.23
4.4.50.0070.0177.23
4.4.40.0000.0437.23
4.4.30.0000.0237.23
4.4.20.0070.0277.23
4.4.10.0000.0237.23
4.4.00.0100.0377.23
4.3.110.0000.0277.23
4.3.100.0070.0237.23
4.3.90.0000.0237.23
4.3.80.0000.0407.23
4.3.70.0000.0237.23
4.3.60.0030.0207.23
4.3.50.0000.0237.23
4.3.40.0000.0337.23
4.3.30.0030.0237.23
4.3.20.0070.0277.23
4.3.10.0030.0207.23
4.3.00.0100.0237.18

preferences:
51.09 ms | 400 KiB | 5 Q