3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('a','b'); $b = array('c','d'); $c = array_merge($a,b); echo $c; $d = array(0=>'e',1=>'f'); $c = array_merge($c,$d); echo $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)
8.3.60.0000.01416.50
8.3.50.0120.00621.99
8.3.40.0140.00718.79
8.3.30.0070.00719.18
8.3.20.0040.00420.33
8.3.10.0080.00021.60
8.3.00.0080.00019.38
8.2.180.0150.00618.41
8.2.170.0060.00922.96
8.2.160.0030.01019.29
8.2.150.0050.00324.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0060.00319.65
8.2.110.0070.00319.27
8.2.100.0040.00817.75
8.2.90.0060.00319.18
8.2.80.0000.00817.97
8.2.70.0030.00517.63
8.2.60.0040.00417.93
8.2.50.0000.00818.07
8.2.40.0040.00419.95
8.2.30.0040.00418.12
8.2.20.0070.00017.69
8.2.10.0030.00517.99
8.2.00.0020.00517.68
8.1.280.0170.00425.92
8.1.270.0130.00320.57
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0060.00322.14
8.1.230.0080.00417.42
8.1.220.0080.00017.79
8.1.210.0000.00818.77
8.1.200.0060.00317.48
8.1.190.0030.00517.35
8.1.180.0050.00318.10
8.1.170.0050.00320.38
8.1.160.0030.00522.06
8.1.150.0040.00418.80
8.1.140.0000.00717.36
8.1.130.0040.00417.74
8.1.120.0000.00717.46
8.1.110.0050.00217.36
8.1.100.0070.00017.34
8.1.90.0000.00717.34
8.1.80.0070.00017.49
8.1.70.0070.00017.34
8.1.60.0000.00917.56
8.1.50.0030.00617.54
8.1.40.0080.00017.46
8.1.30.0000.00917.51
8.1.20.0050.00317.48
8.1.10.0020.00517.40
8.1.00.0030.00517.37
8.0.300.0060.00318.77
8.0.290.0000.00716.75
8.0.280.0030.00318.39
8.0.270.0030.00317.16
8.0.260.0030.00617.23
8.0.250.0040.00417.00
8.0.240.0030.00317.00
8.0.230.0000.00717.05
8.0.220.0040.00416.96
8.0.210.0070.00016.88
8.0.200.0110.00016.99
8.0.190.0000.00716.89
8.0.180.0000.00716.99
8.0.170.0040.00417.01
8.0.160.0030.00517.05
8.0.150.0070.00016.78
8.0.140.0000.00916.89
8.0.130.0000.00613.37
8.0.120.0030.00516.82
8.0.110.0030.00516.92
8.0.100.0000.00716.85
8.0.90.0000.00816.85
8.0.80.0000.02016.95
8.0.70.0000.00716.84
8.0.60.0070.00016.79
8.0.50.0040.00416.95
8.0.30.0070.01617.08
8.0.20.0120.01017.40
8.0.10.0030.00316.92
8.0.00.0120.01016.65
7.4.330.0050.00015.03
7.4.320.0030.00316.43
7.4.300.0040.00416.45
7.4.290.0000.00716.61
7.4.280.0000.00716.53
7.4.270.0000.00716.53
7.4.260.0000.00716.48
7.4.250.0040.00416.45
7.4.240.0030.00516.58
7.4.230.0070.00016.36
7.4.220.0110.00716.50
7.4.210.0070.00816.68
7.4.200.0070.00016.41
7.4.160.0090.00616.36
7.4.150.0100.01117.40
7.4.140.0110.00617.86
7.4.130.0150.00716.38
7.4.120.0120.00616.50
7.4.110.0090.01216.59
7.4.100.0070.01416.62
7.4.90.0040.01416.61
7.4.80.0170.00719.39
7.4.70.0070.01016.61
7.4.60.0060.00916.43
7.4.50.0000.00816.21
7.4.40.0080.00816.43
7.4.30.0100.01316.74
7.4.00.0060.01014.96
7.3.330.0000.00613.25
7.3.320.0120.00013.00
7.3.310.0030.00316.08
7.3.300.0030.00316.28
7.3.290.0040.00416.09
7.3.280.0070.01016.34
7.3.270.0090.00917.40
7.3.260.0130.00616.30
7.3.250.0140.00616.41
7.3.240.0080.00816.21
7.3.230.0150.00316.39
7.3.210.0070.01416.35
7.3.200.0100.00719.39
7.3.190.0100.00616.22
7.3.180.0040.01116.55
7.3.170.0110.00516.56
7.3.160.0130.00316.43
7.3.120.0080.01114.93
7.3.110.0080.01014.71
7.3.100.0070.00714.88
7.3.90.0020.01014.69
7.3.80.0030.01014.64
7.3.70.0010.01314.80
7.3.60.0060.00814.87
7.3.50.0020.01314.64
7.3.40.0030.01014.70
7.3.30.0050.00914.75
7.3.20.0100.00416.65
7.3.10.0060.01016.63
7.3.00.0090.00316.41
7.2.330.0140.00416.66
7.2.320.0030.01616.53
7.2.310.0100.00916.49
7.2.300.0160.00016.54
7.2.290.0060.01616.29
7.2.250.0040.01515.02
7.2.240.0060.01014.78
7.2.230.0080.00814.94
7.2.220.0060.00814.89
7.2.210.0060.00715.03
7.2.200.0030.00914.79
7.2.190.0100.00515.01
7.2.180.0040.01315.01
7.2.170.0060.00714.91
7.2.130.0160.01116.68
7.2.120.0080.01116.92
7.2.110.0130.00816.44
7.2.100.0120.00916.71
7.2.90.0130.00916.69
7.2.80.0090.01216.64
7.2.70.0000.01216.87
7.2.60.0140.00516.56
7.2.50.0080.01316.61
7.2.40.0130.00716.88
7.2.30.0110.00616.66
7.2.20.0100.00716.78
7.2.10.0110.01116.34
7.2.00.0020.01217.90
7.1.330.0060.00715.61
7.1.320.0050.00615.80
7.1.310.0050.00815.88
7.1.300.0030.01015.91
7.1.290.0050.01015.84
7.1.280.0020.00815.72
7.1.270.0060.00415.72
7.1.260.0020.00915.70
7.1.250.0090.00615.80
7.1.200.0060.00315.92
7.1.100.0000.01518.24
7.1.70.0030.00516.81
7.1.60.0080.01519.50
7.1.50.0050.00816.84
7.1.00.0030.07722.35
7.0.200.0220.00416.21
7.0.140.0000.07722.12
7.0.60.0100.07719.94
7.0.50.0130.06017.89
7.0.40.0070.04020.22
7.0.30.0370.05720.13
7.0.20.0430.07320.21
7.0.10.0070.04320.17
7.0.00.0030.04320.01
5.6.280.0130.06320.91
5.6.210.0100.06720.69
5.6.200.0070.04718.12
5.6.190.0070.05320.70
5.6.180.0300.07720.41
5.6.170.0230.08720.62
5.6.160.0030.05720.48
5.6.150.0030.07718.13
5.6.140.0100.08018.16
5.6.130.0070.06318.21
5.6.120.0100.09021.01
5.6.110.0070.08720.98
5.6.100.0130.07721.11
5.6.90.0030.07721.09
5.6.80.0030.03720.53
5.6.70.4570.03720.34
5.5.350.0230.08020.41
5.5.340.0200.06718.02
5.5.330.0030.08720.14
5.5.320.0270.07720.20
5.5.310.0330.07020.31
5.5.300.0100.07317.91
5.5.290.0130.08018.02
5.5.280.0030.07020.86
5.5.270.0030.06720.86
5.5.260.0100.06720.79
5.5.250.0270.06320.57
5.5.240.0300.03020.25
5.4.450.0200.05719.46
5.4.440.0100.07019.41
5.4.430.0030.07019.60
5.4.420.0070.05719.45
5.4.410.0000.08019.28
5.4.400.0070.04018.93
5.4.390.0030.08319.09
5.4.380.0000.04019.10
5.4.370.0000.07719.06
5.4.360.0030.07318.79
5.4.350.0070.05319.16
5.4.340.0070.04719.09
5.4.320.0030.03718.88
5.4.310.0000.03719.25
5.4.300.0000.04319.13
5.4.290.0070.03319.16
5.4.280.0000.03719.15
5.4.270.0000.03719.24
5.4.260.0000.04019.13
5.4.250.0000.04019.27
5.4.240.0030.03318.88
5.4.230.0070.03319.21
5.4.220.0030.03718.88
5.4.210.0000.04019.20
5.4.200.0030.07319.06
5.4.190.0030.03319.07
5.4.180.0000.03718.80
5.4.170.0070.03319.12
5.4.160.0030.03719.07
5.4.150.0030.03319.06
5.4.140.0000.04016.19
5.4.130.0030.03316.34
5.4.120.0000.04016.37
5.4.110.0030.03316.06
5.4.100.0030.03316.39
5.4.90.0030.03016.44
5.4.80.0070.06716.21
5.4.70.0130.06016.36
5.4.60.0000.04316.36
5.4.50.0030.07016.17
5.4.40.0030.05716.38
5.4.30.0000.06316.35
5.4.20.0030.07016.29
5.4.10.0100.04716.19
5.4.00.0170.06015.71
5.3.290.0000.04314.51
5.3.280.0030.03314.53
5.3.270.0030.03714.45
5.3.260.0000.03714.70
5.3.250.0000.03714.59
5.3.240.0000.04014.50
5.3.230.0000.04014.70
5.3.220.0070.03014.47
5.3.210.0000.03714.39
5.3.200.0000.03714.40
5.3.190.0000.03714.42
5.3.180.0000.04314.39
5.3.170.0030.05714.40
5.3.160.0000.05714.40
5.3.150.0000.08014.59
5.3.140.0030.07314.40
5.3.130.0030.08014.41
5.3.120.0070.08014.63
5.3.110.0000.08314.39
5.3.100.0100.06013.88
5.3.90.0070.06013.96
5.3.80.0100.06713.95
5.3.70.0030.07313.85
5.3.60.0070.06714.07
5.3.50.0030.06313.78
5.3.40.0000.07713.88
5.3.30.0100.06713.86
5.3.20.0000.04713.67
5.3.10.0070.04713.51
5.3.00.0070.05013.46
5.2.170.0070.06012.74
5.2.160.0070.06012.74
5.2.150.0070.05012.74
5.2.140.0000.05012.74
5.2.130.0030.05312.74
5.2.120.0030.06312.74
5.2.110.0000.06312.74
5.2.100.0070.06012.74
5.2.90.0000.06012.74
5.2.80.0030.04312.74
5.2.70.0070.03312.74
5.2.60.0070.04712.74
5.2.50.0030.05312.74
5.2.40.0070.05712.74
5.2.30.0030.06012.74
5.2.20.0030.05312.74
5.2.10.0070.05712.74
5.2.00.0000.06012.74
5.1.60.0030.03712.74
5.1.50.0000.03712.74
5.1.40.0070.05012.74
5.1.30.0070.05312.74
5.1.20.0070.05012.74
5.1.10.0000.06012.74
5.1.00.0070.05012.74
5.0.50.0000.04012.74
5.0.40.0030.04712.74
5.0.30.0030.05712.74
5.0.20.0070.04012.74
5.0.10.0030.03712.74
5.0.00.0030.05012.74
4.4.90.0000.03012.74
4.4.80.0000.03712.74
4.4.70.0030.03012.74
4.4.60.0000.03012.74
4.4.50.0070.02312.74
4.4.40.0000.04012.74
4.4.30.0000.03712.74
4.4.20.0000.03012.74
4.4.10.0030.03312.74
4.4.00.0030.04312.74
4.3.110.0000.03312.74
4.3.100.0000.02712.74
4.3.90.0000.03712.74
4.3.80.0000.05012.74
4.3.70.0030.02712.74
4.3.60.0000.03712.74
4.3.50.0030.03712.74
4.3.40.0000.05012.74
4.3.30.0000.03312.74
4.3.20.0030.03312.74
4.3.10.0030.02312.74
4.3.00.0000.03712.74

preferences:
38.19 ms | 401 KiB | 5 Q