3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a=["a","b","c"]; $b=["uu","yy","zz"]; $c=array_merge($a,$b); array_r($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)
8.3.60.0130.00716.63
8.3.50.0170.00322.85
8.3.40.0120.00318.71
8.3.30.0070.00718.98
8.3.20.0080.00020.18
8.3.10.0070.00021.91
8.3.00.0070.00019.08
8.2.180.0090.00916.63
8.2.170.0070.00722.96
8.2.160.0070.00720.58
8.2.150.0080.00024.18
8.2.140.0060.00324.66
8.2.130.0070.00026.16
8.2.120.0000.00920.94
8.2.110.0050.00522.30
8.2.100.0000.01217.70
8.2.90.0030.00619.05
8.2.80.0040.00417.97
8.2.70.0040.00417.68
8.2.60.0040.00417.91
8.2.50.0000.00918.10
8.2.40.0040.00422.20
8.2.30.0050.00219.34
8.2.20.0070.00017.59
8.2.10.0000.00818.02
8.2.00.0000.00717.64
8.1.280.0040.01125.92
8.1.270.0040.00418.73
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00020.78
8.1.230.0040.00718.95
8.1.220.0040.00417.74
8.1.210.0080.00018.77
8.1.200.0050.00317.13
8.1.190.0000.00819.01
8.1.180.0080.00018.10
8.1.170.0000.00818.68
8.1.160.0070.00018.74
8.1.150.0000.00720.29
8.1.140.0050.00317.38
8.1.130.0070.00017.69
8.1.120.0070.00017.43
8.1.110.0080.00017.43
8.1.100.0040.00417.38
8.1.90.0050.00217.39
8.1.80.0000.00717.43
8.1.70.0030.00317.40
8.1.60.0040.00417.52
8.1.50.0040.00417.53
8.1.40.0000.00817.38
8.1.30.0040.00417.64
8.1.20.0020.00517.63
8.1.10.0040.00417.53
8.1.00.0080.00017.51
8.0.300.0060.00318.77
8.0.290.0040.00416.63
8.0.280.0040.00418.38
8.0.270.0070.00017.12
8.0.260.0000.00617.10
8.0.250.0000.00716.93
8.0.240.0000.00616.92
8.0.230.0040.00416.84
8.0.220.0040.00416.86
8.0.210.0040.00416.79
8.0.200.0000.00716.86
8.0.190.0000.00816.98
8.0.180.0040.00416.88
8.0.170.0000.00716.92
8.0.160.0040.00416.85
8.0.150.0000.00716.81
8.0.140.0000.01216.82
8.0.130.0030.00313.24
8.0.120.0080.00016.89
8.0.110.0040.00416.90
8.0.100.0000.00716.83
8.0.90.0040.00416.97
8.0.80.0030.01716.88
8.0.70.0000.00816.88
8.0.60.0040.00416.89
8.0.50.0000.00716.66
8.0.30.0130.00617.14
8.0.20.0120.00617.40
8.0.10.0030.00616.94
8.0.00.0100.00816.87
7.4.330.0030.00315.03
7.4.320.0000.00716.52
7.4.300.0070.00016.55
7.4.290.0030.00316.59
7.4.280.0040.00416.39
7.4.270.0000.00716.61
7.4.260.0030.00316.38
7.4.250.0000.00816.33
7.4.240.0060.00216.61
7.4.230.0000.00716.59
7.4.220.0040.02016.45
7.4.210.0000.02016.55
7.4.200.0000.00716.66
7.4.160.0060.00916.42
7.4.150.0140.00417.40
7.4.140.0100.01117.86
7.4.130.0090.00816.64
7.4.120.0110.00616.49
7.4.110.0140.01116.43
7.4.100.0070.01116.46
7.4.90.0030.01616.55
7.4.80.0060.01819.39
7.4.70.0120.00616.57
7.4.60.0140.00416.66
7.4.50.0030.00616.52
7.4.40.0070.01416.58
7.4.30.0120.00816.41
7.4.00.0110.00314.96
7.3.330.0030.00313.05
7.3.320.0050.00013.10
7.3.310.0030.00316.19
7.3.300.0030.00316.24
7.3.290.0060.00916.27
7.3.280.0050.01316.27
7.3.270.0160.00017.40
7.3.260.0100.00716.24
7.3.250.0120.00716.37
7.3.240.0070.01016.26
7.3.230.0060.00916.53
7.3.210.0090.00616.25
7.3.200.0090.00919.39
7.3.190.0070.01016.27
7.3.180.0030.01216.27
7.3.170.0060.00916.57
7.3.160.0090.00616.40
7.2.330.0000.01616.34
7.2.320.0060.01216.54
7.2.310.0140.00316.57
7.2.300.0060.01216.64
7.2.290.0100.01016.62
7.2.60.0060.00316.89
7.2.50.0000.01416.58
7.1.200.0040.00815.71
7.1.70.0000.01117.28
7.1.60.0130.01319.57
7.1.50.0000.01416.89
7.1.00.0000.08022.48
7.0.200.0000.00716.84
7.0.140.0030.07322.01
7.0.60.0130.07720.03
7.0.50.0070.04017.86
7.0.40.0070.04319.90
7.0.30.0330.05020.13
7.0.20.0230.07720.20
7.0.10.0370.05720.10
7.0.00.0070.05320.27
5.6.280.0000.07721.12
5.6.210.0100.06320.56
5.6.200.0070.08018.18
5.6.190.0230.06020.61
5.6.180.3930.04020.34
5.6.170.0230.08020.33
5.6.160.0030.05720.49
5.6.150.0070.04018.07
5.6.140.0070.05018.17
5.6.130.0000.07018.11
5.6.120.0100.08021.11
5.6.110.0100.08021.00
5.6.100.0070.03720.88
5.6.90.0070.08321.11
5.6.80.0100.04020.39
5.6.70.2300.04020.36
5.5.350.0270.07720.42
5.5.340.0070.07717.96
5.5.330.0030.08320.08
5.5.320.0200.04320.13
5.5.310.0230.08020.13
5.5.300.0070.03717.91
5.5.290.0000.05717.91
5.5.280.0070.08320.87
5.5.270.0230.07020.96
5.5.260.0000.04320.83
5.5.250.0130.07020.68
5.5.240.0070.08720.15
5.4.450.1470.03719.26
5.4.440.0730.04719.49
5.4.430.0100.05319.62
5.4.420.0000.06319.49
5.4.410.0170.04719.24
5.4.400.0070.05319.20
5.4.390.0200.04319.07
5.4.380.0100.05319.16
5.4.370.0100.06718.55
5.4.360.0070.06318.50
5.4.350.0270.04318.63
5.4.340.0170.05318.68
5.4.320.0170.05718.54
5.4.310.0100.06018.66
5.4.300.0170.05718.62
5.4.290.0200.05018.71
5.4.280.0230.05318.64
5.4.270.0200.07018.74
5.4.260.0100.06318.71
5.4.250.0300.05318.68
5.4.240.0270.05318.56
5.4.230.0270.04318.53
5.4.220.0200.06318.48
5.4.210.0230.07318.67
5.4.200.0200.07316.61
5.4.190.0300.06318.47
5.4.180.0270.07018.50
5.4.170.0330.04018.57
5.4.160.0200.04718.62
5.4.150.0230.04718.70
5.4.140.0200.05016.13
5.4.130.0170.05016.23
5.4.120.0100.05716.37
5.4.110.0070.06016.35
5.4.100.0200.04716.21
5.4.90.0130.05716.16
5.4.80.0200.05016.20
5.4.70.0200.05016.09
5.4.60.0330.03316.03
5.4.50.0100.05316.04
5.4.40.0200.05016.09
5.4.30.0230.04316.23
5.4.20.0230.05016.18
5.4.10.0030.06316.32
5.4.00.0270.04715.65
5.3.290.0230.05314.59
5.3.280.0200.05714.56
5.3.270.0100.07014.60
5.3.260.0230.06014.70
5.3.250.0130.06314.58
5.3.240.0300.06314.70
5.3.230.0170.07314.48
5.3.220.0070.06314.46
5.3.210.0200.07314.62
5.3.200.0230.07014.60
5.3.190.0330.06014.48
5.3.180.0200.06314.52
5.3.170.0100.06314.47
5.3.160.0200.05314.53
5.3.150.0170.05014.59
5.3.140.0170.05314.54
5.3.130.0200.05014.48
5.3.120.0100.06314.65
5.3.110.0200.05314.48
5.3.100.0070.06013.95
5.3.90.0100.05714.01
5.3.80.0270.03714.00
5.3.70.0200.04314.05
5.3.60.0300.04013.92
5.3.50.0270.05713.92
5.3.40.0100.05313.93
5.3.30.0230.04313.86
5.3.20.0170.04713.62
5.3.10.0070.05713.63
5.3.00.0070.05713.71
5.2.170.0170.03711.13
5.2.160.0100.04311.14
5.2.150.0130.06311.11
5.2.140.0200.03711.27
5.2.130.0070.04311.02
5.2.120.0100.04311.03
5.2.110.0130.04011.02
5.2.100.0170.03711.15
5.2.90.0100.04711.02
5.2.80.0200.04711.25
5.2.70.0200.05311.10
5.2.60.0130.06011.18
5.2.50.0130.06311.01
5.2.40.0100.04311.04
5.2.30.0100.04310.90
5.2.20.0030.04710.91
5.2.10.0100.04010.86
5.2.00.0030.05010.77
5.1.60.0130.04310.10
5.1.50.0100.0379.97
5.1.40.0100.05010.01
5.1.30.0230.04310.23
5.1.20.0100.03710.40
5.1.10.0100.03710.16
5.1.00.0170.03010.10
5.0.50.0000.0378.56
5.0.40.0100.0238.42
5.0.30.0100.0438.29
5.0.20.0070.0378.31
5.0.10.0070.0308.29
5.0.00.0100.0408.28
4.4.90.0030.0235.86
4.4.80.0030.0275.86
4.4.70.0070.0235.87
4.4.60.0030.0305.90
4.4.50.0000.0305.87
4.4.40.0100.0335.86
4.4.30.0070.0305.86
4.4.20.0030.0305.95
4.4.10.0170.0205.97
4.4.00.0070.0335.91
4.3.110.0100.0205.79
4.3.100.0030.0235.88
4.3.90.0000.0335.78
4.3.80.0070.0435.80
4.3.70.0030.0235.78
4.3.60.0030.0305.82
4.3.50.0030.0235.86
4.3.40.0070.0335.74
4.3.30.0070.0204.54
4.3.20.0070.0204.53
4.3.10.0030.0234.57
4.3.00.0170.01314.61

preferences:
73.08 ms | 401 KiB | 5 Q