3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(); $a[] = array('a'=>1); $a[] = array('a'=>2); $a[] = array('a'=>3); $b = array(); $b[] = array('a'=>1, 'b'=>2); $b[] = array('a'=>2, 'b'=>2); $b[] = array('a'=>3, 'b'=>2); $c = array_merge($a, $b); var_dump($c);

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)
8.3.60.0120.00918.56
8.3.50.0120.00921.21
8.3.40.0190.00318.85
8.3.30.0120.00918.77
8.3.20.0060.00318.72
8.3.10.0050.00321.10
8.3.00.0000.01423.45
8.2.180.0070.01416.38
8.2.170.0120.00322.96
8.2.160.0130.00020.39
8.2.150.0060.00324.18
8.2.140.0120.00624.66
8.2.130.0040.00426.16
8.2.120.0170.00021.12
8.2.110.0070.00320.35
8.2.100.0110.00017.91
8.2.90.0000.00819.09
8.2.80.0060.00317.97
8.2.70.0000.00917.61
8.2.60.0000.00818.03
8.2.50.0060.00318.07
8.2.40.0020.00518.16
8.2.30.0070.00021.16
8.2.20.0040.00417.52
8.2.10.0000.00817.55
8.2.00.0000.01017.69
8.1.280.0140.00325.92
8.1.270.0000.00723.99
8.1.260.0040.01126.35
8.1.250.0050.00328.09
8.1.240.0090.00022.20
8.1.230.0060.00617.64
8.1.220.0060.00317.76
8.1.210.0000.00818.77
8.1.200.0090.00017.00
8.1.190.0040.00417.53
8.1.180.0080.00018.10
8.1.170.0080.00018.66
8.1.160.0060.00318.76
8.1.150.0000.00718.50
8.1.140.0040.00417.39
8.1.130.0030.00317.77
8.1.120.0090.00017.41
8.1.110.0100.00017.34
8.1.100.0000.00817.40
8.1.90.0070.00017.26
8.1.80.0040.00417.30
8.1.70.0070.00017.27
8.1.60.0030.00617.54
8.1.50.0040.00417.40
8.1.40.0040.00417.44
8.1.30.0040.00417.41
8.1.20.0040.00417.63
8.1.10.0040.00417.50
8.1.00.0030.00617.27
8.0.300.0070.00018.77
8.0.290.0030.00616.63
8.0.280.0000.00718.34
8.0.270.0030.00317.26
8.0.260.0060.00016.74
8.0.250.0050.00316.87
8.0.240.0050.00316.92
8.0.230.0030.00316.92
8.0.220.0030.00316.75
8.0.210.0040.00416.80
8.0.200.0030.00316.91
8.0.190.0030.00316.95
8.0.180.0000.00716.73
8.0.170.0030.00516.75
8.0.160.0070.00016.91
8.0.150.0000.00716.67
8.0.140.0040.00416.70
8.0.130.0030.00513.21
8.0.120.0000.00816.79
8.0.110.0050.00316.86
8.0.100.0040.00416.65
8.0.90.0030.00516.83
8.0.80.0100.00716.74
8.0.70.0040.00416.65
8.0.60.0080.00016.66
8.0.50.0020.00516.84
8.0.30.0070.01317.02
8.0.20.0120.00717.40
8.0.10.0030.00716.82
8.0.00.0110.01116.66
7.4.330.0050.00014.73
7.4.320.0030.00316.52
7.4.300.0000.00616.40
7.4.290.0040.00416.49
7.4.280.0040.00416.51
7.4.270.0050.00216.39
7.4.260.0050.00013.28
7.4.250.0040.00416.36
7.4.240.0030.00316.43
7.4.230.0030.00316.62
7.4.220.0120.01216.42
7.4.210.0070.01016.48
7.4.200.0040.00416.34
7.4.190.0040.00416.58
7.4.160.0120.01216.45
7.4.150.0070.01617.40
7.4.140.0090.01017.86
7.4.130.0070.01016.53
7.4.120.0100.00716.41
7.4.110.0110.00716.39
7.4.100.0090.00916.55
7.4.90.0110.01116.68
7.4.80.0100.00719.39
7.4.70.0120.00916.47
7.4.60.0130.00916.32
7.4.50.0030.00616.45
7.4.40.0000.01522.52
7.4.30.0090.00916.23
7.4.00.0080.00814.80
7.3.330.0020.00213.10
7.3.320.0000.00512.94
7.3.310.0050.00316.00
7.3.300.0030.00316.29
7.3.290.0070.00716.20
7.3.280.0060.01116.18
7.3.270.0090.00917.40
7.3.260.0100.01118.24
7.3.250.0100.00816.45
7.3.240.0180.00016.41
7.3.230.0070.01316.39
7.3.210.0110.00816.18
7.3.200.0090.01219.39
7.3.190.0080.00816.30
7.3.180.0000.01716.26
7.3.170.0000.01516.46
7.3.160.0120.00316.25
7.3.120.0040.01114.69
7.3.110.0060.01014.65
7.3.100.0070.00714.53
7.3.90.0070.01014.74
7.3.80.0070.01014.55
7.3.70.0030.01314.88
7.3.60.0040.01114.68
7.3.50.0100.00314.86
7.3.40.0110.00314.54
7.3.30.0000.01014.64
7.3.20.0100.00716.43
7.3.10.0120.00616.40
7.3.00.0060.00716.38
7.2.330.0200.00316.53
7.2.320.0110.00816.44
7.2.310.0080.00816.67
7.2.300.0030.01416.50
7.2.290.0080.00816.46
7.2.250.0100.01015.25
7.2.240.0070.01315.21
7.2.230.0110.00015.15
7.2.220.0070.01114.91
7.2.210.0030.01414.98
7.2.200.0120.00414.84
7.2.190.0000.01415.01
7.2.180.0080.01114.61
7.2.170.0070.01015.03
7.2.130.0100.00716.39
7.2.120.0090.00616.61
7.2.110.0180.00616.48
7.2.100.0130.00716.18
7.2.90.0130.01016.45
7.2.80.0210.00316.25
7.2.70.0150.00716.92
7.2.60.0190.00416.23
7.2.50.0160.00816.66
7.2.40.0250.00616.70
7.2.30.0150.01016.36
7.2.20.0110.01116.48
7.2.10.0140.01016.22
7.2.00.0090.00917.99
7.1.330.0030.00915.79
7.1.320.0070.01015.61
7.1.310.0060.00916.04
7.1.300.0060.00615.64
7.1.290.0090.00615.71
7.1.280.0040.01115.94
7.1.270.0100.00315.90
7.1.260.0070.00615.70
7.1.250.0190.00615.61
7.1.100.0030.01018.04
7.1.70.0070.00317.21
7.1.60.0130.01019.40
7.1.50.0090.01516.83
7.1.00.0030.04022.27
7.0.200.0030.00316.44
7.0.140.0000.07722.04
7.0.70.0000.04021.88
7.0.60.0070.03721.70
7.0.50.0030.04322.14
7.0.40.0000.03320.14
7.0.30.0030.04020.11
7.0.20.0030.03320.02
7.0.10.0070.03720.18
7.0.00.0030.04319.99
5.6.280.0000.07721.04
5.6.220.0030.03020.55
5.6.210.0000.04020.54
5.6.200.0030.03321.05
5.6.190.0070.03321.07
5.6.180.0030.07021.04
5.6.170.0070.04020.94
5.6.160.0070.04321.11
5.6.150.0000.03321.00
5.6.140.0000.03721.04
5.6.130.0030.03320.99
5.6.120.0000.03720.99
5.6.110.0030.03320.93
5.6.100.0000.03321.03
5.6.90.0000.03721.01
5.6.80.0000.03720.41
5.6.70.0030.04020.50
5.6.60.0070.03720.31
5.6.50.0070.06720.49
5.6.40.0000.04320.29
5.6.30.0000.03320.31
5.6.20.0030.07720.46
5.6.10.0030.03720.48
5.6.00.0030.06320.39
5.5.360.0070.05320.29
5.5.350.0000.05320.28
5.5.340.0000.04020.75
5.5.330.0000.04320.76
5.5.320.0000.04320.77
5.5.310.0030.03720.72
5.5.300.0070.03020.80
5.5.290.0070.03020.89
5.5.280.0030.03720.63
5.5.270.0030.03320.72
5.5.260.0070.03020.85
5.5.250.0000.03320.70
5.5.240.0000.04320.27
5.5.230.0000.03720.25
5.5.220.0070.02720.27
5.5.210.0000.03320.30
5.5.200.0000.04020.16
5.5.190.0000.03320.20
5.5.180.0000.03320.23
5.5.160.0030.04320.17
5.5.150.0000.04320.24
5.5.140.0000.07320.16
5.5.130.0000.07320.16
5.5.120.0030.04720.11
5.5.110.0070.07320.11
5.5.100.0000.08320.06
5.5.90.0000.06020.03
5.5.80.0100.05719.96
5.5.70.0000.05720.11
5.5.60.0030.06320.13
5.5.50.0030.07720.14
5.5.40.0100.06720.07
5.5.30.0100.07019.94
5.5.20.0070.06720.12
5.5.10.0030.07720.03
5.5.00.0000.07719.97
5.4.450.0000.03319.30
5.4.440.0000.03319.57
5.4.430.0070.02719.44
5.4.420.0000.03319.10
5.4.410.0000.03019.27
5.4.400.0000.03719.02
5.4.390.0070.02719.03
5.4.380.0000.04019.12
5.4.370.0000.07718.78
5.4.360.0000.03718.97
5.4.350.0000.05018.94
5.4.340.0070.05319.02
5.4.320.0100.03019.02
5.4.310.0000.04019.02
5.4.300.0000.04319.08
5.4.290.0000.03719.04
5.4.280.0000.04019.11
5.4.270.0000.04019.02
5.4.260.0070.07318.94
5.4.250.0030.07718.89
5.4.240.0000.07719.01
5.4.230.0030.07019.11
5.4.220.0030.07319.05
5.4.210.0130.06719.04
5.4.200.0030.06718.95
5.4.190.0030.07318.93
5.4.180.0070.06719.08
5.4.170.0130.06018.89
5.4.160.0030.08019.09
5.4.150.0030.07318.97
5.4.140.0030.07316.34
5.4.130.0070.07016.30
5.4.120.0030.07316.23
5.4.110.0070.07016.35
5.4.100.0030.06016.36
5.4.90.0000.07016.32
5.4.80.0030.06016.34
5.4.70.0030.06716.41
5.4.60.0000.06716.42
5.4.50.0000.06716.23
5.4.40.0070.06716.40
5.4.30.0070.04716.18
5.4.20.0070.07016.27
5.4.10.0000.06316.29
5.4.00.0000.05715.77
5.3.290.0000.05314.65
5.3.280.0030.07314.45
5.3.270.0030.07014.44
5.3.260.0000.07314.58
5.3.250.0030.07314.56
5.3.240.0100.06014.46
5.3.230.0000.07014.57
5.3.220.0000.06714.51
5.3.210.0100.07014.55
5.3.200.0000.08014.52
5.3.190.0030.07014.55
5.3.180.0070.07714.51
5.3.170.0070.06014.54
5.3.160.0030.07314.50
5.3.150.0000.07314.56
5.3.140.0100.06014.49
5.3.130.0000.08014.50
5.3.120.0000.06014.50
5.3.110.0030.07314.50
5.3.100.0030.06313.86
5.3.90.0000.07713.87
5.3.80.0030.07313.77
5.3.70.0030.07314.00
5.3.60.0000.07713.99
5.3.50.0100.06713.93
5.3.40.0000.07313.96
5.3.30.0030.06013.84
5.3.20.0030.03713.55
5.3.10.0030.05313.42
5.3.00.0030.07013.50
5.2.170.0000.06311.13
5.2.160.0030.05311.14
5.2.150.0030.03711.12
5.2.140.0030.04011.11
5.2.130.0030.03711.14
5.2.120.0030.05711.11
5.2.110.0000.06011.11
5.2.100.0030.04711.11
5.2.90.0070.05011.11
5.2.80.0030.05011.13
5.2.70.0000.05311.16
5.2.60.0030.06011.11
5.2.50.0030.06011.11
5.2.40.0030.05711.11
5.2.30.0000.06311.11
5.2.20.0000.06011.11
5.2.10.0030.06311.11
5.2.00.0030.05011.11
5.1.60.0070.05311.11
5.1.50.0000.05011.11
5.1.40.0070.05011.11
5.1.30.0000.06011.11
5.1.20.0070.05011.11
5.1.10.0100.05011.11
5.1.00.0070.05311.11
5.0.50.0030.03711.11
5.0.40.0100.04011.11
5.0.30.0030.05311.11
5.0.20.0100.04011.11
5.0.10.0030.03311.11
5.0.00.0070.05311.11
4.4.90.0000.04011.11
4.4.80.0030.03011.11
4.4.70.0000.03711.11
4.4.60.0000.03711.11
4.4.50.0000.03711.11
4.4.40.0070.04711.11
4.4.30.0000.03711.11
4.4.20.0000.03711.11
4.4.10.0000.03011.11
4.4.00.0000.04311.11
4.3.110.0030.03311.11
4.3.100.0000.03711.11
4.3.90.0000.03311.11
4.3.80.0000.05711.11
4.3.70.0070.02711.11
4.3.60.0000.03311.11
4.3.50.0030.03311.11
4.3.40.0070.04711.11
4.3.30.0030.03711.11
4.3.20.0000.03711.11
4.3.10.0030.03711.11
4.3.00.0000.03311.11

preferences:
40.91 ms | 401 KiB | 5 Q