3v4l.org

run code in 300+ PHP versions simultaneously
<?php $input = ["a", "b"]; function search($input) { $result = $input; foreach($input as $a) foreach($input as $b) $result []= $a . $b; array_walk($result, null); return array_unique($result); } echo json_encode(search($input));

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)
8.3.40.0000.01518.88
8.3.30.0160.00618.84
8.3.20.0000.00818.87
8.3.10.0090.00020.48
8.3.00.0050.00319.50
8.2.170.0130.00322.96
8.2.160.0070.00721.23
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0030.00326.16
8.2.120.0040.00717.75
8.2.110.0070.00321.03
8.2.100.0040.00817.84
8.2.90.0040.00419.47
8.2.80.0040.00419.21
8.2.70.0050.00317.63
8.2.60.0040.00417.93
8.2.50.0030.00718.07
8.2.40.0030.00618.34
8.2.30.0110.00018.20
8.2.20.0040.00417.80
8.2.10.0000.00817.71
8.2.00.0070.00417.82
8.1.270.0000.00724.66
8.1.260.0050.00326.35
8.1.250.0000.00728.09
8.1.240.0100.00022.48
8.1.230.0080.00321.02
8.1.220.0000.00817.76
8.1.210.0120.00019.10
8.1.200.0060.00317.48
8.1.190.0020.00517.66
8.1.180.0040.00418.10
8.1.170.0060.00318.96
8.1.160.0000.00818.96
8.1.150.0030.00518.62
8.1.140.0070.00017.51
8.1.130.0030.00317.81
8.1.120.0030.00617.39
8.1.110.0080.00017.38
8.1.100.0040.00417.52
8.1.90.0000.00717.30
8.1.80.0070.00017.38
8.1.70.0070.00017.45
8.1.60.0000.00817.48
8.1.50.0030.00617.37
8.1.40.0040.00417.57
8.1.30.0000.00917.70
8.1.20.0080.00017.58
8.1.10.0030.00617.60
8.1.00.0000.00817.53
8.0.300.0030.00319.89
8.0.290.0000.00716.63
8.0.280.0070.00018.52
8.0.270.0030.00317.23
8.0.260.0060.00016.85
8.0.250.0000.00717.00
8.0.240.0030.00317.02
8.0.230.0070.00017.08
8.0.220.0070.00016.88
8.0.210.0070.00016.92
8.0.200.0030.00316.87
8.0.190.0000.00917.03
8.0.180.0040.00417.02
8.0.170.0030.00517.01
8.0.160.0030.00317.05
8.0.150.0040.00416.84
8.0.140.0040.00416.88
8.0.130.0000.00613.39
8.0.120.0040.00416.91
8.0.110.0080.00016.99
8.0.100.0000.00817.02
8.0.90.0070.00017.04
8.0.80.0030.01116.89
8.0.70.0000.00716.90
8.0.60.0050.00316.79
8.0.50.0070.00016.81
8.0.30.0070.01417.18
8.0.20.0120.00817.03
8.0.10.0000.00717.11
8.0.00.0140.00816.75
7.4.330.0000.00513.08
7.4.320.0040.00416.66
7.4.300.0060.00016.51
7.4.290.0030.00516.58
7.4.280.0040.00416.54
7.4.270.0040.00416.54
7.4.260.0030.00313.34
7.4.250.0060.00316.45
7.4.240.0000.00716.57
7.4.230.0030.00516.41
7.4.220.0030.01616.58
7.4.210.0050.01016.50
7.4.200.0040.00416.59
7.4.190.0080.00016.77
7.4.160.0060.01216.65
7.4.150.0060.01216.55
7.4.140.0090.01216.43
7.4.130.0060.01116.58
7.4.120.0110.00816.47
7.4.110.0100.00716.45
7.4.100.0120.00416.54
7.4.90.0090.00916.50
7.4.80.0030.01319.39
7.4.70.0060.01016.59
7.4.60.0090.00616.44
7.4.50.0030.00616.54
7.4.40.0090.00616.78
7.4.30.0030.01316.58
7.4.00.0090.00814.95
7.3.330.0030.00313.31
7.3.320.0000.00513.27
7.3.310.0040.00416.33
7.3.300.0000.00616.41
7.3.290.0070.00716.44
7.3.280.0070.00816.46
7.3.270.0060.01116.43
7.3.260.0100.00716.64
7.3.250.0130.01016.63
7.3.240.0070.01016.66
7.3.230.0060.01616.66
7.3.210.0130.00316.35
7.3.200.0060.00916.61
7.3.190.0070.01516.42
7.3.180.0070.01016.36
7.3.170.0140.00316.66
7.3.160.0120.00616.42
7.3.120.0080.01014.82
7.3.110.0060.01214.71
7.3.100.0030.00914.58
7.3.90.0110.00314.70
7.3.80.0030.01415.14
7.3.70.0040.00714.74
7.3.60.0060.00614.93
7.3.50.0090.00614.91
7.3.40.0080.00014.95
7.3.30.0090.00014.91
7.3.20.0070.00316.85
7.3.10.0110.00416.45
7.3.00.0050.00616.64
7.2.330.0140.00316.41
7.2.320.0100.01316.71
7.2.310.0050.01816.58
7.2.300.0070.01016.50
7.2.290.0100.01016.43
7.2.250.0110.00715.21
7.2.240.0070.01315.20
7.2.230.0150.00015.00
7.2.220.0030.00914.90
7.2.210.0080.00414.66
7.2.200.0060.00614.75
7.2.190.0040.00414.76
7.2.180.0090.00615.03
7.2.170.0030.00915.24
7.2.60.0070.01016.93
7.2.00.0070.00719.45
7.1.330.0060.00915.89
7.1.320.0080.00515.67
7.1.310.0100.00715.71
7.1.300.0070.00715.55
7.1.290.0040.00915.71
7.1.280.0030.00715.63
7.1.270.0080.00415.98
7.1.260.0060.00615.81
7.1.200.0040.00815.71
7.1.100.0080.00318.32
7.1.70.0000.00817.06
7.1.60.0070.01719.40
7.1.50.0100.01416.95
7.1.00.0030.07022.34
7.0.200.0130.01015.04
7.0.140.0000.07321.92
7.0.120.0070.06022.18
7.0.90.0570.08019.88
7.0.80.0700.06720.02
7.0.70.0530.04719.88
7.0.60.0570.06719.98
7.0.50.0470.05720.30
7.0.40.0000.08020.04
7.0.30.0230.07020.10
7.0.20.0070.08020.00
7.0.10.0030.04720.14
7.0.00.0130.07020.17
5.6.280.0030.07321.07
5.6.230.0170.07320.57
5.6.220.0130.07020.66
5.6.210.0070.04720.49
5.6.200.0100.08021.04
5.6.190.0070.05321.05
5.6.180.0130.07321.11
5.6.170.0100.08021.09
5.6.160.0100.05020.96
5.6.150.0100.07720.96
5.6.140.0070.08320.95
5.6.130.0100.07021.02
5.6.120.0000.07320.94
5.6.110.0130.03721.02
5.6.100.0030.05021.11
5.6.90.0100.05020.99
5.6.80.0070.07720.34
5.6.70.0030.07320.49
5.6.60.0030.06320.46
5.6.50.0170.06320.56
5.6.40.0100.08320.37
5.6.30.0030.07720.30
5.6.20.0070.05720.49
5.6.10.0070.07720.29
5.6.00.0000.08020.39
5.5.370.0070.08020.41
5.5.360.0070.07720.48
5.5.350.0070.06020.43
5.5.340.0030.08020.86
5.5.330.0070.04320.91
5.5.320.0070.08020.82
5.5.310.0000.09020.90
5.5.300.0130.06720.78
5.5.290.0000.04720.78
5.5.280.0070.04320.83
5.5.270.0070.06720.82
5.5.260.0000.08720.80
5.5.250.0030.05020.62
5.5.240.0100.06720.25
5.5.230.0200.06020.27
5.5.220.0170.07320.15
5.5.210.0130.04720.17
5.5.200.0100.07320.23
5.5.190.0200.07320.11
5.5.180.0200.06320.10
5.5.160.0000.05020.15
5.5.150.0070.07320.27
5.5.140.0070.04720.26
5.5.130.0170.04020.19
5.5.120.0100.04720.20
5.5.110.0070.07320.21
5.5.100.0100.04720.07
5.5.90.0030.04720.11
5.5.80.0100.07320.15
5.5.70.0200.05719.99
5.5.60.0100.07019.96
5.5.50.0030.04320.06
5.5.40.0170.06720.14
5.5.30.0100.07720.06
5.5.20.0030.08320.15
5.5.10.0070.07319.98
5.5.00.0070.06320.12
5.4.450.0100.07019.54
5.4.440.0030.04319.36
5.4.430.0100.04019.36
5.4.420.0070.05719.20
5.4.410.0170.07019.07
5.4.400.0070.07319.16
5.4.390.0030.05019.10
5.4.380.0070.07318.88
5.4.370.0170.06319.14
5.4.360.0070.07318.95
5.4.350.0030.06319.03
5.4.340.0000.08019.20
5.4.320.0070.04319.12
5.4.310.0070.04319.13
5.4.300.0030.06319.18
5.4.290.0100.07319.13
5.4.280.0030.05019.00
5.4.270.0100.06318.90
5.4.260.0000.05019.08
5.4.250.0070.05318.96
5.4.240.0000.04719.04
5.4.230.0070.03719.11
5.4.220.0100.07319.25
5.4.210.0070.04019.17
5.4.200.0000.04019.13
5.4.190.0170.05719.20
5.4.180.0100.07319.11
5.4.170.0100.07319.11
5.4.160.0070.08019.21
5.4.150.0070.04719.21
5.4.140.0030.04316.28
5.4.130.0170.05716.35
5.4.120.0070.05316.38
5.4.110.0000.05016.27
5.4.100.0030.07016.49
5.4.90.0030.05716.43
5.4.80.0070.05716.25
5.4.70.0130.06316.30
5.4.60.0030.07716.46
5.4.50.0030.08016.31
5.4.40.0000.06016.42
5.4.30.0030.08016.30
5.4.20.0100.07316.46
5.4.10.0070.07716.29
5.4.00.0230.06015.82
5.3.290.0100.03314.64
5.3.280.0000.08014.46
5.3.270.0030.08014.58
5.3.260.0030.06314.61
5.3.250.0070.06014.57
5.3.240.0130.06714.44
5.3.230.0130.04714.54
5.3.220.0130.04714.43
5.3.210.0100.06314.55
5.3.200.0130.06714.52
5.3.190.0000.07014.43
5.3.180.0070.05314.53
5.3.170.0070.06714.43
5.3.160.0000.07714.39
5.3.150.0170.06314.44
5.3.140.0030.05314.57
5.3.130.0130.07014.39
5.3.120.0100.08014.54
5.3.110.0030.08314.55
5.3.100.0070.04713.88
5.3.90.0000.07313.89
5.3.80.0070.07313.98
5.3.70.0000.05313.98
5.3.60.0070.07313.86
5.3.50.0030.04013.89
5.3.40.0100.03013.85
5.3.30.0170.06013.89
5.3.20.0030.05713.55
5.3.10.0030.04713.57
5.3.00.0030.05313.54
5.2.170.0030.03011.14
5.2.160.0030.04011.06
5.2.150.0000.06011.06
5.2.140.0070.03311.22
5.2.130.0070.05011.02
5.2.120.0070.05711.09
5.2.110.0030.06311.16
5.2.100.0030.03711.05
5.2.90.0070.05711.05
5.2.80.0030.06311.13
5.2.70.0030.06310.93
5.2.60.0030.05011.03
5.2.50.0070.05010.96
5.2.40.0100.04710.98
5.2.30.0070.06010.85
5.2.20.0030.06310.91
5.2.10.0000.06710.88
5.2.00.0070.05310.66
5.1.60.0070.05010.02
5.1.50.0070.04710.02
5.1.40.0070.0379.96
5.1.30.0100.05010.30
5.1.20.0030.04010.36
5.1.10.0030.04310.05
5.1.00.0030.03710.10
5.0.50.0030.0208.53
5.0.40.0030.0438.44
5.0.30.0000.0678.25
5.0.20.0030.0278.13
5.0.10.0070.0378.16
5.0.00.0030.0438.13
4.4.90.0000.0378.13
4.4.80.0000.0378.13
4.4.70.0070.0278.13
4.4.60.0070.0308.13
4.4.50.0070.0338.13
4.4.40.0070.0478.13
4.4.30.0000.0178.13
4.4.20.0000.0238.13
4.4.10.0000.0238.13
4.4.00.0030.0538.13
4.3.110.0030.0278.13
4.3.100.0000.0278.13
4.3.90.0000.0338.13
4.3.80.0030.0438.13
4.3.70.0000.0308.13
4.3.60.0030.0338.13
4.3.50.0000.0308.13
4.3.40.0070.0478.13
4.3.30.0000.0278.13
4.3.20.0000.0378.13
4.3.10.0000.0338.13
4.3.00.0070.0308.13

preferences:
29.25 ms | 400 KiB | 5 Q