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); 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)
8.3.60.0150.00018.66
8.3.50.0150.00522.00
8.3.40.0110.00418.88
8.3.30.0100.00319.22
8.3.20.0070.00020.34
8.3.10.0000.00723.66
8.3.00.0050.00322.45
8.2.180.0130.00916.50
8.2.170.0140.00722.96
8.2.160.0030.01622.05
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00419.36
8.2.110.0030.00720.47
8.2.100.0090.00317.91
8.2.90.0000.00818.34
8.2.80.0000.00817.97
8.2.70.0030.00617.63
8.2.60.0030.00617.93
8.2.50.0040.00718.07
8.2.40.0040.00418.09
8.2.30.0050.00218.16
8.2.20.0070.00017.85
8.2.10.0030.00517.73
8.2.00.0000.00717.70
8.1.280.0140.00725.92
8.1.270.0080.00022.19
8.1.260.0040.00426.35
8.1.250.0000.00828.09
8.1.240.0050.00522.20
8.1.230.0060.00620.95
8.1.220.0040.00417.79
8.1.210.0060.00318.88
8.1.200.0040.00417.35
8.1.190.0000.00817.41
8.1.180.0040.00418.10
8.1.170.0050.00318.53
8.1.160.0070.00022.04
8.1.150.0100.00018.64
8.1.140.0000.00717.54
8.1.130.0030.00317.80
8.1.120.0020.00517.42
8.1.110.0070.00017.46
8.1.100.0070.00017.44
8.1.90.0000.00717.54
8.1.80.0000.00717.43
8.1.70.0030.00317.38
8.1.60.0050.00317.49
8.1.50.0040.00417.51
8.1.40.0090.00017.54
8.1.30.0030.00517.62
8.1.20.0040.00417.67
8.1.10.0030.00617.49
8.1.00.0040.00417.53
8.0.300.0030.00620.23
8.0.290.0040.00417.15
8.0.280.0030.00318.37
8.0.270.0050.00316.89
8.0.260.0060.00016.89
8.0.250.0020.00517.06
8.0.240.0000.00716.92
8.0.230.0030.00316.92
8.0.220.0040.00416.96
8.0.210.0000.00716.98
8.0.200.0030.00316.92
8.0.190.0090.00017.09
8.0.180.0050.00316.89
8.0.170.0030.00517.05
8.0.160.0070.00017.04
8.0.150.0000.00716.93
8.0.140.0030.00316.89
8.0.130.0040.00413.46
8.0.120.0040.00416.98
8.0.110.0040.00317.00
8.0.100.0040.00416.95
8.0.90.0040.00416.96
8.0.80.0110.00917.04
8.0.70.0070.00017.00
8.0.60.0000.00717.04
8.0.50.0080.00017.03
8.0.30.0110.00817.07
8.0.20.0100.01317.40
8.0.10.0040.00417.05
8.0.00.0120.00616.79
7.4.330.0030.00315.09
7.4.320.0000.00716.51
7.4.300.0060.00016.66
7.4.290.0080.00016.62
7.4.280.0000.00716.60
7.4.270.0030.00316.54
7.4.260.0040.00416.40
7.4.250.0000.00816.62
7.4.240.0030.00516.55
7.4.230.0000.00716.45
7.4.220.0030.01316.51
7.4.210.0090.00516.59
7.4.200.0050.00216.45
7.4.190.0030.00316.38
7.4.160.0030.01216.49
7.4.150.0140.00517.40
7.4.140.0120.00917.86
7.4.130.0120.00516.52
7.4.120.0170.00416.45
7.4.110.0030.01416.60
7.4.100.0160.00616.56
7.4.90.0100.01016.42
7.4.80.0120.00916.57
7.4.70.0140.00316.68
7.4.60.0170.00016.67
7.4.50.0000.00816.47
7.4.40.0100.00722.77
7.4.30.0030.01316.67
7.4.00.0110.00514.94
7.3.330.0000.00513.33
7.3.320.0000.00613.37
7.3.310.0030.00316.48
7.3.300.0000.00716.41
7.3.290.0070.00716.48
7.3.280.0110.00516.46
7.3.270.0070.01717.40
7.3.260.0090.00916.57
7.3.250.0030.01416.45
7.3.240.0150.00416.66
7.3.230.0110.01016.70
7.3.210.0130.01016.65
7.3.200.0070.01419.39
7.3.190.0190.00316.52
7.3.180.0000.01616.42
7.3.170.0150.00616.40
7.3.160.0060.00916.45
7.3.120.0060.00914.99
7.3.110.0110.00314.59
7.3.100.0060.00914.87
7.3.90.0030.01314.84
7.3.80.0090.00614.79
7.3.70.0040.01414.90
7.3.60.0060.00614.84
7.3.50.0040.01415.05
7.3.40.0060.01014.83
7.3.30.0070.01114.56
7.3.20.0040.01116.57
7.3.10.0050.00816.73
7.3.00.0130.00316.79
7.2.330.0130.00516.80
7.2.320.0100.00716.79
7.2.310.0090.01216.59
7.2.300.0090.01316.47
7.2.290.0100.00616.78
7.2.250.0040.01415.04
7.2.240.0120.00315.03
7.2.230.0130.00014.99
7.2.220.0030.00915.00
7.2.210.0100.01014.84
7.2.200.0110.00714.75
7.2.190.0080.00415.17
7.2.180.0060.01014.81
7.2.170.0030.01314.98
7.2.160.0080.00815.04
7.2.150.0100.00316.71
7.2.140.0110.00416.79
7.2.130.0090.00716.86
7.2.120.0050.00716.80
7.2.110.0100.00416.83
7.2.100.0040.00816.86
7.2.90.0090.00616.90
7.2.80.0100.00517.02
7.2.70.0020.00916.76
7.2.60.0030.01016.95
7.2.50.0080.00316.81
7.2.40.0080.00616.83
7.2.30.0090.00516.63
7.2.20.0030.01416.78
7.2.10.0050.00916.57
7.2.00.0030.00816.87
7.1.330.0040.01415.89
7.1.320.0000.01015.45
7.1.310.0110.00315.89
7.1.300.0060.00615.93
7.1.290.0070.00715.53
7.1.280.0090.00915.63
7.1.270.0030.01015.87
7.1.260.0120.00615.74
7.1.250.0050.00515.87
7.1.240.0060.00915.83
7.1.230.0030.01015.96
7.1.220.0000.01515.56
7.1.210.0060.00615.71
7.1.200.0050.00815.78
7.1.190.0060.00915.70
7.1.180.0030.00715.76
7.1.170.0070.00415.87
7.1.160.0040.01115.80
7.1.150.0090.00315.99
7.1.140.0000.01215.77
7.1.130.0070.00715.68
7.1.120.0050.00515.98
7.1.110.0030.01315.91
7.1.100.0070.00315.88
7.1.90.0070.01015.97
7.1.80.0090.00315.53
7.1.70.0020.01116.57
7.1.60.0070.01317.65
7.1.50.0110.00616.36
7.1.40.0030.00715.61
7.1.30.0100.00315.46
7.1.20.0150.00015.79
7.1.10.0000.00815.86
7.1.00.0050.04419.00
7.0.330.0070.01015.20
7.0.320.0060.01015.49
7.0.310.0070.00715.44
7.0.300.0000.01015.58
7.0.290.0070.00715.50
7.0.280.0030.00615.39
7.0.270.0060.00615.44
7.0.260.0100.00315.44
7.0.250.0100.00315.19
7.0.240.0050.00515.53
7.0.230.0030.00615.31
7.0.220.0030.00615.50
7.0.210.0040.00915.34
7.0.200.0110.00516.07
7.0.190.0030.00615.54
7.0.180.0100.00315.27
7.0.170.0090.00615.62
7.0.160.0000.00815.63
7.0.150.0030.00715.58
7.0.140.0040.03918.72
7.0.130.0030.00615.42
7.0.120.0030.00615.19
7.0.110.0070.00715.43
7.0.100.0090.00915.46
7.0.90.0020.03517.69
7.0.80.0230.04417.73
7.0.70.0010.04317.79
7.0.60.0100.04017.66
7.0.50.0180.04917.94
7.0.40.0030.04716.75
7.0.30.0070.04316.69
7.0.20.0080.03716.82
7.0.10.0050.04316.87
7.0.00.0100.04516.85
5.6.400.0020.01014.12
5.6.390.0070.00314.12
5.6.380.0040.01114.68
5.6.370.0080.00414.42
5.6.360.0000.01114.57
5.6.350.0090.00614.43
5.6.340.0000.01014.72
5.6.330.0040.00814.64
5.6.320.0090.00614.40
5.6.310.0030.01014.74
5.6.300.0000.01314.57
5.6.290.0060.00914.61
5.6.280.0070.04017.71
5.6.270.0070.00714.29
5.6.260.0100.01014.38
5.6.250.0090.00614.54
5.6.240.0050.04617.56
5.6.230.0120.04217.50
5.6.220.0070.04217.44
5.6.210.0050.03917.45
5.6.200.0050.03817.68
5.6.190.0050.04317.76
5.6.180.0070.02017.77
5.6.170.0100.03917.73
5.6.160.0210.03017.73
5.6.150.0060.03017.86
5.6.140.0100.02317.64
5.6.130.0070.03517.70
5.6.120.0100.04017.67
5.6.110.0030.05117.73
5.6.100.0070.02717.78
5.6.90.0070.03117.66
5.6.80.0130.02517.48
5.6.70.0030.04017.42
5.6.60.0080.04217.45
5.6.50.0060.04117.44
5.6.40.0060.04317.41
5.6.30.0130.03517.34
5.6.20.0020.03217.41
5.6.10.0010.03417.31
5.6.00.0110.04017.33
5.5.380.0080.03817.33
5.5.370.0070.02517.38
5.5.360.0050.03717.56
5.5.350.0080.03817.26
5.5.340.0050.04517.69
5.5.330.0070.02517.54
5.5.320.0070.04717.83
5.5.310.0030.04517.88
5.5.300.0100.04617.36
5.5.290.0070.02417.58
5.5.280.0060.04417.71
5.5.270.0070.02617.66
5.5.260.0070.03417.61
5.5.250.0050.04117.35
5.5.240.0120.04017.39
5.5.230.0090.04017.33
5.5.220.0030.04117.31
5.5.210.0030.04717.36
5.5.200.0050.02817.28
5.5.190.0080.02317.10
5.5.180.0090.04017.34
5.5.170.0040.00414.46
5.5.160.0080.04317.30
5.5.150.0080.04017.27
5.5.140.0050.03317.20
5.5.130.0110.03617.31
5.5.120.0050.03217.28
5.5.110.0030.02617.34
5.5.100.0100.03717.06
5.5.90.0080.04017.18
5.5.80.0070.03917.26
5.5.70.0070.03817.05
5.5.60.0040.04317.21
5.5.50.0050.04517.19
5.5.40.0060.04517.04
5.5.30.0050.04217.12
5.5.20.0060.03217.02
5.5.10.0020.04717.12
5.5.00.0100.03217.15
5.4.450.0020.02615.30
5.4.440.0070.02615.29
5.4.430.0030.02915.29
5.4.420.0050.03915.37
5.4.410.0050.03715.23
5.4.400.0070.03915.15
5.4.390.0050.04015.13
5.4.380.0050.04315.18
5.4.370.0080.02315.04
5.4.360.0070.03815.07
5.4.350.0020.03315.06
5.4.340.0060.04015.14
5.4.330.0060.00311.12
5.4.320.0050.04015.11
5.4.310.0020.02615.16
5.4.300.0070.02515.22
5.4.290.0070.02215.36
5.4.280.0050.04215.16
5.4.270.0070.02815.20
5.4.260.0050.03815.09
5.4.250.0050.02715.22
5.4.240.0030.04015.09
5.4.230.0090.02815.08
5.4.220.0070.04015.15
5.4.210.0100.03615.05
5.4.200.0080.04015.09
5.4.190.0050.04214.94
5.4.180.0000.03115.11
5.4.170.0100.03515.10
5.4.160.0050.04015.06
5.4.150.0060.03915.09
5.4.140.0050.04313.84
5.4.130.0050.02713.90
5.4.120.0000.02613.60
5.4.110.0050.03313.86
5.4.100.0030.03213.93
5.4.90.0080.02213.70
5.4.80.0050.02813.92
5.4.70.0070.01713.94
5.4.60.0060.04013.76
5.4.50.0100.02513.72
5.4.40.0080.02713.87
5.4.30.0070.02513.73
5.4.20.0040.03513.75
5.4.10.0070.03813.82
5.4.00.0040.02413.56
5.3.290.0040.02512.85
5.3.280.0030.04212.79
5.3.270.0080.02212.82
5.3.260.0050.03712.81
5.3.250.0050.02212.81
5.3.240.0070.04012.82
5.3.230.0050.03312.82
5.3.220.0070.03912.82
5.3.210.0010.03112.72
5.3.200.0050.03612.80
5.3.190.0040.02112.80
5.3.180.0030.02512.81
5.3.170.0050.02512.79
5.3.160.0080.03812.74
5.3.150.0070.04012.81
5.3.140.0100.02912.73
5.3.130.0110.03512.71
5.3.120.0060.03612.73
5.3.110.0020.03712.79
5.3.100.0090.03112.50
5.3.90.0030.04112.53
5.3.80.0050.03812.53
5.3.70.0020.04312.50
5.3.60.0050.02812.50
5.3.50.0070.02812.50
5.3.40.0070.02312.43
5.3.30.0010.02812.47
5.3.20.0050.03312.25
5.3.10.0070.03212.32
5.3.00.0030.02512.34
5.2.170.0000.06710.93
5.2.160.0170.04711.16
5.2.150.0100.06011.18
5.2.140.0070.06010.97
5.2.130.0070.05711.02
5.2.120.0030.05311.04
5.2.110.0030.05711.12
5.2.100.0000.03710.93
5.2.90.0070.06010.96
5.2.80.0000.06711.08
5.2.70.0070.04311.04
5.2.60.0070.03010.84
5.2.50.0030.05710.86
5.2.40.0070.03010.82
5.2.30.0070.02710.89
5.2.20.0000.06310.88
5.2.10.0100.05310.88
5.2.00.0100.02710.79
5.1.60.0030.0339.98
5.1.50.0030.05010.01
5.1.40.0070.03310.00
5.1.30.0130.02010.25
5.1.20.0100.05010.40
5.1.10.0000.03310.09
5.1.00.0070.04010.11
5.0.50.0070.0338.63
5.0.40.0030.0408.47
5.0.30.0100.0578.16
5.0.20.0070.0408.18
5.0.10.0100.0308.15
5.0.00.0030.0538.27
4.4.90.0070.0307.09
4.4.80.0030.0337.09
4.4.70.0000.0177.09
4.4.60.0000.0177.09
4.4.50.0000.0277.09
4.4.40.0030.0437.09
4.4.30.0000.0337.09
4.4.20.0030.0377.09
4.4.10.0100.0307.09
4.4.00.0000.0477.09
4.3.110.0030.0237.09
4.3.100.0030.0337.09
4.3.90.0070.0307.09
4.3.80.0030.0337.09
4.3.70.0000.0377.09
4.3.60.0070.0307.09
4.3.50.0030.0377.09
4.3.40.0030.0337.09
4.3.30.0030.0337.09
4.3.20.0030.0177.09
4.3.10.0000.0337.09
4.3.00.0000.0337.09

preferences:
42.12 ms | 401 KiB | 5 Q