3v4l.org

run code in 300+ PHP versions simultaneously
<?php function search($input) { $result = $input; foreach($input as $a) foreach($input as $b) $result []= $a . $b; return array_filter(array_unique($result)); } print json_encode(search(["a", "b"])) . "\n"; print json_encode(search(["a", "b", "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)
8.3.40.0110.00418.68
8.3.30.0030.01019.27
8.3.20.0080.00020.04
8.3.10.0040.00423.69
8.3.00.0040.00420.69
8.2.170.0140.00322.96
8.2.160.0070.00720.28
8.2.150.0000.00724.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0040.00419.25
8.2.110.0100.00021.07
8.2.100.0110.00018.05
8.2.90.0040.00419.22
8.2.80.0040.00417.97
8.2.70.0050.00317.75
8.2.60.0050.00318.05
8.2.50.0050.00318.10
8.2.40.0000.00820.64
8.2.30.0040.00418.34
8.2.20.0040.00417.66
8.2.10.0040.00418.02
8.2.00.0000.00817.74
8.1.270.0090.00023.82
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0060.00322.20
8.1.230.0090.00317.57
8.1.220.0050.00317.74
8.1.210.0030.00518.77
8.1.200.0030.00617.36
8.1.190.0040.00417.22
8.1.180.0030.00618.10
8.1.170.0030.00618.65
8.1.160.0050.00318.89
8.1.150.0040.00418.61
8.1.140.0040.00417.57
8.1.130.0030.00317.82
8.1.120.0030.00517.54
8.1.110.0060.00317.52
8.1.100.0000.00817.46
8.1.90.0070.00017.39
8.1.80.0000.00817.52
8.1.70.0030.00317.39
8.1.60.0000.00817.59
8.1.50.0060.00317.50
8.1.40.0040.00417.52
8.1.30.0030.00617.66
8.1.20.0050.00317.67
8.1.10.0030.00517.43
8.1.00.0060.00317.49
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0000.00718.44
8.0.270.0000.00717.25
8.0.260.0050.00217.26
8.0.250.0030.00316.97
8.0.240.0080.00316.95
8.0.230.0070.00016.89
8.0.220.0020.00516.98
8.0.210.0070.00016.76
8.0.200.0060.00016.96
8.0.190.0000.00716.86
8.0.180.0050.00316.81
8.0.170.0030.00616.90
8.0.160.0030.00516.74
8.0.150.0030.00316.84
8.0.140.0100.00016.75
8.0.130.0060.00013.29
8.0.120.0000.00916.77
8.0.110.0000.00716.79
8.0.100.0000.00716.68
8.0.90.0060.00316.96
8.0.80.0140.00716.82
8.0.70.0040.00416.93
8.0.60.0000.00716.71
8.0.50.0070.00016.79
8.0.30.0130.00917.11
8.0.20.0130.00717.40
8.0.10.0040.00416.88
8.0.00.0100.00916.79
7.4.330.0000.00615.02
7.4.320.0060.00016.59
7.4.300.0060.00016.61
7.4.290.0030.00316.43
7.4.280.0060.00316.62
7.4.270.0030.00316.43
7.4.260.0030.00316.39
7.4.250.0000.00716.43
7.4.240.0040.00316.54
7.4.230.0030.00316.70
7.4.220.0100.00816.40
7.4.210.0090.00916.46
7.4.200.0070.00016.25
7.4.160.0100.00716.63
7.4.150.0070.01017.40
7.4.140.0050.01617.86
7.4.130.0120.00516.46
7.4.120.0070.00916.50
7.4.110.0030.01316.52
7.4.100.0040.01316.48
7.4.90.0130.00516.65
7.4.80.0100.01119.39
7.4.70.0070.01016.47
7.4.60.0130.01216.34
7.4.50.0000.00916.43
7.4.40.0110.00516.39
7.4.30.0130.00316.51
7.4.00.0140.00315.03
7.3.330.0050.00013.37
7.3.320.0000.00513.35
7.3.310.0030.00316.27
7.3.300.0000.00716.22
7.3.290.0110.00316.45
7.3.280.0080.00816.36
7.3.270.0110.00617.40
7.3.260.0100.01016.34
7.3.250.0130.00616.62
7.3.240.0090.00916.60
7.3.230.0110.00816.59
7.3.210.0080.00816.44
7.3.200.0120.00619.39
7.3.190.0040.00416.66
7.3.180.0110.00516.37
7.3.170.0060.00916.61
7.3.160.0110.01116.67
7.3.120.0030.00915.02
7.2.330.0080.00916.66
7.2.320.0100.01016.61
7.2.310.0090.00816.58
7.2.300.0050.01016.61
7.2.290.0100.00616.48
7.2.00.0040.00819.29
7.1.200.0000.01415.89
7.1.100.0120.00918.12
7.1.70.0070.00017.12
7.1.60.0070.01619.70
7.1.50.0040.01916.90
7.1.00.0070.07322.54
7.0.200.0070.00716.59
7.0.140.0070.06722.09
7.0.90.0700.07319.91
7.0.80.0570.07319.97
7.0.70.0530.07020.02
7.0.60.0600.07019.96
7.0.50.0570.07720.40
7.0.40.0100.08020.11
7.0.30.0000.08720.08
7.0.20.0170.06020.09
7.0.10.0200.06720.10
7.0.00.0000.07720.04
5.6.280.0100.06721.07
5.6.240.0070.08020.67
5.6.230.0130.04320.60
5.6.220.0030.07720.67
5.6.210.0070.04720.75
5.6.200.0070.07021.04
5.6.190.0130.05021.18
5.6.180.0070.04721.04
5.6.170.0200.07321.14
5.6.160.0130.07721.12
5.6.150.0070.06021.05
5.6.140.0030.08721.04
5.6.130.0330.05321.03
5.6.120.0100.05721.02
5.6.110.0070.04721.07
5.6.100.0000.05321.00
5.6.90.0200.07321.12
5.6.80.0130.04020.52
5.6.70.0070.08320.48
5.6.60.0130.06020.45
5.6.50.0000.04320.40
5.6.40.0100.03320.36
5.6.30.0030.04020.50
5.6.20.0030.04020.43
5.6.10.0030.04020.39
5.6.00.0030.04020.36
5.5.380.0030.07720.35
5.5.370.0030.08320.38
5.5.360.0070.08020.54
5.5.350.0070.08320.37
5.5.340.0070.04320.93
5.5.330.0000.05020.64
5.5.320.0070.09020.89
5.5.310.0170.07320.83
5.5.300.0130.07320.90
5.5.290.0100.07720.82
5.5.280.0100.04320.86
5.5.270.0100.05020.82
5.5.260.0130.07720.81
5.5.250.0130.07720.68
5.5.240.0070.07720.18
5.5.230.0030.04320.20
5.5.220.0230.03720.26
5.5.210.0100.04720.28
5.5.200.0030.04720.13
5.5.190.0030.04020.29
5.5.180.0000.04320.15
5.5.160.0030.04320.15
5.5.150.0070.04020.27
5.5.140.0030.03720.09
5.5.130.0130.06020.16
5.5.120.0030.03720.25
5.5.110.0030.05319.97
5.5.100.0070.03719.95
5.5.90.0130.07020.17
5.5.80.0070.07320.05
5.5.70.0000.06320.06
5.5.60.0070.04719.93
5.5.50.0030.05320.06
5.5.40.0000.04020.04
5.5.30.0000.05720.13
5.5.20.0030.03320.05
5.5.10.0000.03720.14
5.5.00.0070.05720.08
5.4.450.0070.08019.42
5.4.440.0100.08019.20
5.4.430.0130.07719.55
5.4.420.0070.08319.17
5.4.410.0070.07719.07
5.4.400.0030.04719.10
5.4.390.0130.06718.85
5.4.380.0070.07319.03
5.4.370.0030.04019.18
5.4.360.0000.04318.88
5.4.350.0070.04019.03
5.4.340.0030.04319.23
5.4.320.0030.03719.21
5.4.310.0000.04319.20
5.4.300.0070.03319.17
5.4.290.0070.05319.16
5.4.280.0030.04019.06
5.4.270.0070.05018.90
5.4.260.0100.03019.23
5.4.250.0100.03319.04
5.4.240.0000.04319.08
5.4.230.0000.04019.03
5.4.220.0070.06719.07
5.4.210.0000.05019.11
5.4.200.0030.04719.13
5.4.190.0070.02719.17
5.4.180.0000.04019.04
5.4.170.0070.03019.04
5.4.160.0000.06319.21
5.4.150.0070.04019.11
5.4.140.0000.05016.36
5.4.130.0130.05316.39
5.4.120.0000.06016.26
5.4.110.0030.03716.39
5.4.100.0130.04016.27
5.4.90.0070.03016.32
5.4.80.0070.02716.48
5.4.70.0030.06316.38
5.4.60.0100.03016.47
5.4.50.0030.03316.48
5.4.40.0030.03716.38
5.4.30.0030.07016.36
5.4.20.0000.03716.29
5.4.10.0030.03716.24
5.4.00.0000.04715.86
5.3.290.0000.04014.73
5.3.280.0070.03314.52
5.3.270.0030.03714.66
5.3.260.0070.07714.73
5.3.250.0070.03314.67
5.3.240.0100.05714.61
5.3.230.0070.05714.56
5.3.220.0070.03014.59
5.3.210.0000.04014.54
5.3.200.0000.04014.68
5.3.190.0030.03714.68
5.3.180.0030.03714.57
5.3.170.0030.03314.49
5.3.160.0030.03714.52
5.3.150.0030.04014.59
5.3.140.0070.03714.53
5.3.130.0070.04714.60
5.3.120.0030.03714.52
5.3.110.0030.04014.66
5.3.100.0030.04314.13
5.3.90.0100.06313.99
5.3.80.0070.07314.07
5.3.70.0170.07314.05
5.3.60.0070.07313.99
5.3.50.0130.06314.00
5.3.40.0070.07014.05
5.3.30.0030.06313.83
5.3.20.0130.07013.81
5.3.10.0030.05013.66
5.3.00.0070.05313.70
5.2.170.0100.04311.20
5.2.160.0070.03311.27
5.2.150.0070.06711.17
5.2.140.0070.04711.27
5.2.130.0100.05011.21
5.2.120.0130.05311.10
5.2.110.0000.06311.05
5.2.100.0070.05711.21
5.2.90.0100.03011.10
5.2.80.0030.05711.12
5.2.70.0100.06011.16
5.2.60.0030.05010.93
5.2.50.0130.03710.90
5.2.40.0070.03010.85
5.2.30.0130.04710.97
5.2.20.0000.04310.98
5.2.10.0030.05710.92
5.2.00.0070.05310.57
5.1.60.0030.0539.89
5.1.50.0000.05710.09
5.1.40.0100.0379.86
5.1.30.0070.05310.41
5.1.20.0070.04010.29
5.1.10.0000.0309.91
5.1.00.0000.02710.14
5.0.50.0000.0438.53
5.0.40.0030.0408.46
5.0.30.0030.0478.30
5.0.20.0100.0308.21
5.0.10.0070.0338.16
5.0.00.0100.0508.21
4.4.90.0030.0237.16
4.4.80.0030.0307.16
4.4.70.0100.0277.16
4.4.60.0000.0377.16
4.4.50.0070.0307.16
4.4.40.0000.0437.16
4.4.30.0000.0377.16
4.4.20.0030.0377.16
4.4.10.0070.0207.16
4.4.00.0070.0507.16
4.3.110.0000.0337.16
4.3.100.0000.0237.16
4.3.90.0000.0377.16
4.3.80.0100.0337.16
4.3.70.0030.0307.16
4.3.60.0030.0337.16
4.3.50.0000.0377.16
4.3.40.0000.0437.16
4.3.30.0000.0177.16
4.3.20.0000.0307.16
4.3.10.0070.0337.16
4.3.00.0000.0337.16

preferences:
42.65 ms | 400 KiB | 5 Q