3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(1,2,2,1,1); $b = array("1"=>1,"2"=>1); foreach (array_unique($b) as $key => $value) { echo "$key => $value\n"; }

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)
8.3.70.0060.00916.63
8.3.60.0070.00716.71
8.3.50.0110.00521.98
8.3.40.0040.01118.79
8.3.30.0140.00318.79
8.3.20.0000.00720.21
8.3.10.0080.00023.48
8.3.00.0050.00322.40
8.2.180.0120.00318.29
8.2.170.0080.00622.96
8.2.160.0090.00522.08
8.2.150.0000.00824.18
8.2.140.0070.00324.66
8.2.130.0120.00326.16
8.2.120.0040.00422.11
8.2.110.0060.00319.30
8.2.100.0120.00017.77
8.2.90.0000.00719.21
8.2.80.0040.00418.02
8.2.70.0040.00417.38
8.2.60.0100.00018.03
8.2.50.0030.00618.07
8.2.40.0030.00718.09
8.2.30.0070.00018.09
8.2.20.0060.00317.55
8.2.10.0000.00817.61
8.2.00.0030.00617.60
8.1.280.0060.01325.92
8.1.270.0000.00923.79
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0180.00324.02
8.1.230.0070.00418.87
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0000.00817.23
8.1.190.0080.00017.41
8.1.180.0030.00618.10
8.1.170.0000.00818.66
8.1.160.0000.00722.05
8.1.150.0000.00818.62
8.1.140.0040.00417.43
8.1.130.0030.00317.73
8.1.120.0000.00717.41
8.1.110.0040.00417.45
8.1.100.0000.00717.50
8.1.90.0030.00617.44
8.1.80.0070.00017.38
8.1.70.0000.00717.39
8.1.60.0000.00917.47
8.1.50.0040.00417.39
8.1.40.0040.00417.39
8.1.30.0030.00617.60
8.1.20.0040.00417.65
8.1.10.0000.00717.37
8.1.00.0040.00417.43
8.0.300.0040.00418.77
8.0.290.0030.00317.04
8.0.280.0000.00718.43
8.0.270.0030.00317.20
8.0.260.0030.00318.42
8.0.250.0060.00016.91
8.0.240.0000.00817.00
8.0.230.0030.00316.85
8.0.220.0050.00216.85
8.0.210.0040.00416.86
8.0.200.0060.00017.00
8.0.190.0050.00216.81
8.0.180.0030.00316.83
8.0.170.0030.00616.89
8.0.160.0040.00416.86
8.0.150.0060.00316.86
8.0.140.0000.00816.80
8.0.130.0000.00513.27
8.0.120.0030.00716.88
8.0.110.0000.00816.89
8.0.100.0020.00516.98
8.0.90.0000.00716.71
8.0.80.0090.01216.82
8.0.70.0000.00716.83
8.0.60.0040.00416.75
8.0.50.0050.00316.68
8.0.30.0080.01016.82
8.0.20.0060.01217.40
8.0.10.0030.00516.89
8.0.00.0110.00816.62
7.4.330.0000.00515.14
7.4.320.0000.00616.51
7.4.300.0070.00016.59
7.4.290.0030.00316.55
7.4.280.0000.00716.43
7.4.270.0030.00616.60
7.4.260.0030.00316.37
7.4.250.0030.00616.53
7.4.240.0040.00416.55
7.4.230.0030.00316.48
7.4.220.0230.01116.54
7.4.210.0070.00816.54
7.4.200.0000.00716.39
7.4.190.0040.00416.44
7.4.160.0120.00616.65
7.4.150.0090.01617.40
7.4.140.0070.01017.86
7.4.130.0120.00916.53
7.4.120.0120.00716.50
7.4.110.0090.00916.36
7.4.100.0140.00516.27
7.4.90.0030.01716.58
7.4.80.0100.01319.39
7.4.70.0090.00616.54
7.4.60.0120.00616.51
7.4.50.0000.00816.31
7.4.40.0030.01222.77
7.4.30.0130.00316.41
7.4.00.0060.00915.00
7.3.330.0060.00013.20
7.3.320.0060.00013.11
7.3.310.0030.00316.16
7.3.300.0040.00416.30
7.3.290.0060.00916.31
7.3.280.0060.01016.36
7.3.270.0120.00817.40
7.3.260.0100.01616.32
7.3.250.0100.00816.50
7.3.240.0130.00416.39
7.3.230.0090.01316.39
7.3.210.0060.01016.44
7.3.200.0090.00919.39
7.3.190.0060.01016.62
7.3.180.0090.00616.23
7.3.170.0120.00416.27
7.3.160.0110.00416.41
7.3.120.0090.00614.74
7.3.10.0100.00416.04
7.3.00.0070.01116.05
7.2.330.0030.01416.55
7.2.320.0120.00316.43
7.2.310.0060.01116.40
7.2.300.0110.01116.41
7.2.290.0090.00616.62
7.2.130.0080.00616.36
7.2.120.0090.00416.50
7.2.110.0110.00616.51
7.2.100.0100.00616.43
7.2.90.0130.00716.51
7.2.80.0070.01016.74
7.2.70.0050.01216.50
7.2.60.0150.00316.78
7.2.50.0160.00016.56
7.2.40.0170.00616.85
7.2.30.0080.01016.43
7.2.20.0110.00616.53
7.2.10.0030.01116.69
7.2.00.0060.00917.58
7.1.250.0140.00315.59
7.1.100.0000.00818.00
7.1.70.0000.00817.06
7.1.60.0060.01619.29
7.1.50.0220.00416.79
7.1.00.0030.07322.32
7.0.200.0040.00816.83
7.0.140.0030.07022.18
7.0.60.0270.07021.71
7.0.50.0100.03317.80
7.0.40.0030.07720.02
7.0.30.0300.03720.13
7.0.20.0370.07020.00
7.0.10.0170.06320.12
7.0.00.0070.07020.12
5.6.280.0030.09321.04
5.6.210.0030.04020.56
5.6.200.0000.04318.22
5.6.190.0030.04320.27
5.6.180.0330.07320.37
5.6.170.0330.08320.48
5.6.160.0070.07720.47
5.6.150.0070.03718.15
5.6.140.0100.07318.18
5.6.130.0070.08318.15
5.6.120.0070.07020.99
5.6.110.0130.06721.11
5.6.100.0070.04020.97
5.6.90.0070.05321.09
5.6.80.0030.04320.35
5.5.350.0270.04020.34
5.5.340.0100.07017.89
5.5.330.0300.06720.25
5.5.320.0270.04320.34
5.5.310.0330.05720.23
5.5.300.0100.05718.02
5.5.290.0030.04718.00
5.5.280.0100.08320.75
5.5.270.0100.07020.84
5.5.260.0070.03720.75
5.5.250.0100.08320.50
5.5.240.0300.07320.18
5.4.450.4670.04319.21
5.4.440.0100.07319.32
5.4.430.0730.06019.48
5.4.420.3270.04019.47
5.4.410.1800.04319.16
5.4.400.2930.03319.05
5.4.390.2970.04019.20
5.4.380.0070.03319.20
5.4.370.3800.04319.00
5.4.360.4270.03319.21
5.4.350.4530.03019.04
5.4.340.3330.03319.20
5.4.320.4400.04318.89
5.4.310.3700.04019.16
5.4.300.0100.07719.16
5.4.290.0100.04718.92
5.4.280.3770.04319.00
5.4.270.2530.03719.16
5.4.260.3430.03319.16
5.4.250.4630.03018.96
5.4.240.3930.04018.86
5.4.230.3930.03319.04
5.4.220.3830.04019.06
5.4.210.4100.04019.15
5.4.200.4530.03719.15
5.4.190.2830.03319.07
5.4.180.3770.03319.16
5.4.170.4530.04019.16
5.4.160.3430.03319.02
5.4.150.3870.03318.94
5.4.140.3630.03316.44
5.4.130.4070.04016.27
5.4.120.4370.03716.37
5.4.110.4270.04016.35
5.4.100.3930.03716.35
5.4.90.3600.03016.35
5.4.80.3700.03316.36
5.4.70.4170.03316.34
5.4.60.3630.03316.49
5.4.50.3570.03316.39
5.4.40.3500.03316.43
5.4.30.3900.04016.21
5.4.20.3230.03016.33
5.4.10.3570.04316.38
5.4.00.3430.02715.71
5.3.290.3930.04314.56
5.3.280.4070.03714.55
5.3.270.4470.04014.59
5.3.260.4000.04014.39
5.3.250.3630.04014.42
5.3.240.3870.03714.57
5.3.230.4270.03314.59
5.3.220.3530.03014.66
5.3.210.3970.03314.52
5.3.200.4300.03714.48
5.3.190.3700.04314.51
5.3.180.3830.04014.45
5.3.170.4170.03314.52
5.3.160.3870.04014.38
5.3.150.3870.03014.48
5.3.140.3500.03314.48
5.3.130.5000.03014.48
5.3.120.3230.03314.48
5.3.110.3270.03314.51
5.3.100.3700.03313.96
5.3.90.3370.03313.80
5.3.80.3430.04013.96
5.3.70.3130.03713.99
5.3.60.3230.04013.98
5.3.50.3130.03713.73
5.3.40.3830.03313.91
5.3.30.3470.04013.89
5.3.20.4030.03713.62
5.3.10.2630.03713.63
5.3.00.3770.03713.56
5.2.170.2230.02311.23
5.2.160.2400.03011.09
5.2.150.2530.03011.08
5.2.140.2870.03011.07
5.2.130.3470.02711.03
5.2.120.1830.02711.03
5.2.110.1930.03010.98
5.2.100.3130.03010.93
5.2.90.2470.03011.05
5.2.80.2570.02711.10
5.2.70.2230.03010.98
5.2.60.3570.02711.03
5.2.50.3370.02711.00
5.2.40.2570.02710.89
5.2.30.2670.03310.95
5.2.20.2730.03010.77
5.2.10.0970.03310.77
5.2.00.0470.02710.63
5.1.60.1030.02310.10
5.1.50.1930.02310.00
5.1.40.1670.02310.04
5.1.30.1530.02710.34
5.1.20.1400.03310.38
5.1.10.1800.02710.09
5.1.00.2100.03310.04
5.0.50.1070.0178.52
5.0.40.0600.0138.41
5.0.30.0530.0338.19
5.0.20.1000.0208.24
5.0.10.0300.0178.23
5.0.00.1100.0278.20
4.4.90.0800.0235.82
4.4.80.1500.0175.83
4.4.70.1300.0175.88
4.4.60.1300.0175.80
4.4.50.1630.0175.87
4.4.40.0700.0275.83
4.4.30.0530.0175.80
4.4.20.0570.0175.94
4.4.10.0700.0175.89
4.4.00.0470.0305.82
4.3.110.0970.0175.72
4.3.100.0770.0205.79
4.3.90.1030.0105.72
4.3.80.0730.0275.72
4.3.70.1000.0175.71
4.3.60.0470.0175.79
4.3.50.0730.0135.67
4.3.40.0530.0205.80
4.3.30.0300.0205.20
4.3.20.0130.0175.20
4.3.10.0570.0135.20
4.3.00.0200.0175.20

preferences:
62.36 ms | 401 KiB | 5 Q