3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo json_encode(array_unique(array("foo" => "bar", "baz" => "quux")));

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)
8.3.40.0070.01118.63
8.3.30.0090.01218.98
8.3.20.0030.00520.26
8.3.10.0000.00823.50
8.3.00.0060.00320.96
8.2.170.0070.01022.96
8.2.160.0070.00720.39
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0040.00420.89
8.2.110.0080.00019.31
8.2.100.0140.00017.72
8.2.90.0000.00719.09
8.2.80.0080.00017.97
8.2.70.0030.00517.50
8.2.60.0000.00717.91
8.2.50.0090.00018.10
8.2.40.0050.00218.09
8.2.30.0000.00718.09
8.2.20.0030.00517.48
8.2.10.0040.00417.91
8.2.00.0050.00317.43
8.1.270.0040.00423.96
8.1.260.0040.00426.35
8.1.250.0040.01128.09
8.1.240.0080.00023.95
8.1.230.0100.00017.71
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0040.00416.88
8.1.190.0000.00817.11
8.1.180.0040.00418.10
8.1.170.0040.00418.52
8.1.160.0040.00421.88
8.1.150.0000.00718.60
8.1.140.0070.00017.30
8.1.130.0000.00717.79
8.1.120.0020.00517.29
8.1.110.0000.00717.24
8.1.100.0040.00417.21
8.1.90.0050.00317.27
8.1.80.0000.00817.32
8.1.70.0070.00017.24
8.1.60.0040.00417.45
8.1.50.0040.00417.28
8.1.40.0000.00817.28
8.1.30.0070.00317.43
8.1.20.0080.00017.40
8.1.10.0040.00417.32
8.1.00.0040.00417.25
8.0.300.0000.00718.77
8.0.290.0080.00016.63
8.0.280.0030.00318.27
8.0.270.0030.00317.28
8.0.260.0000.00717.16
8.0.250.0070.00016.87
8.0.240.0000.00716.86
8.0.230.0070.00016.66
8.0.220.0080.00016.63
8.0.210.0030.00316.72
8.0.200.0000.00716.88
8.0.190.0080.00016.76
8.0.180.0070.00016.68
8.0.170.0050.00316.76
8.0.160.0050.00216.73
8.0.150.0050.00316.59
8.0.140.0020.00516.70
8.0.130.0050.00513.21
8.0.120.0020.00516.67
8.0.110.0040.00416.66
8.0.100.0070.00016.86
8.0.90.0070.00016.81
8.0.80.0120.00916.77
8.0.70.0070.00016.78
8.0.60.0030.00316.63
8.0.50.0040.00416.64
8.0.30.0070.01117.01
8.0.20.0120.00817.40
8.0.10.0040.00416.99
8.0.00.0050.01216.56
7.4.330.0000.00615.03
7.4.320.0060.00016.22
7.4.300.0030.00316.49
7.4.290.0030.00316.28
7.4.280.0050.00316.32
7.4.270.0070.00016.37
7.4.260.0100.00016.46
7.4.250.0040.00416.30
7.4.240.0050.00216.42
7.4.230.0000.00716.28
7.4.220.0120.00616.30
7.4.210.0110.01016.38
7.4.200.0000.00716.54
7.4.160.0050.01116.16
7.4.150.0110.00617.40
7.4.140.0110.00617.86
7.4.130.0120.00816.33
7.4.120.0100.00916.33
7.4.110.0100.00716.54
7.4.100.0120.00616.48
7.4.90.0160.00616.31
7.4.80.0080.01619.39
7.4.70.0100.01116.38
7.4.60.0070.01116.38
7.4.50.0030.00616.49
7.4.40.0070.01016.34
7.4.30.0110.00616.47
7.4.00.0030.01014.70
7.3.330.0030.00312.87
7.3.320.0060.00012.84
7.3.310.0070.00016.05
7.3.300.0000.00616.01
7.3.290.0030.01116.19
7.3.280.0080.00816.13
7.3.270.0070.01017.40
7.3.260.0090.00916.14
7.3.250.0040.01316.25
7.3.240.0140.00316.29
7.3.230.0180.00316.39
7.3.210.0120.00916.16
7.3.200.0130.00919.39
7.3.190.0040.01216.27
7.3.180.0030.01516.21
7.3.170.0140.00316.47
7.3.160.0070.01016.20
7.3.120.0080.00414.66
7.3.10.0060.00616.43
7.3.00.0090.00416.41
7.2.330.0130.01016.32
7.2.320.0080.00816.63
7.2.310.0140.01016.27
7.2.300.0100.00716.60
7.2.290.0040.01516.52
7.2.130.0060.00916.90
7.2.120.0050.00516.42
7.2.110.0040.01116.74
7.2.100.0050.00316.84
7.2.90.0070.00416.74
7.2.80.0060.00916.83
7.2.70.0030.01016.95
7.2.60.0070.00716.75
7.2.50.0030.01316.86
7.2.40.0060.00616.88
7.2.30.0120.00416.87
7.2.20.0070.00716.75
7.2.10.0120.00316.77
7.2.00.0070.00417.92
7.1.250.0060.00915.61
7.1.100.0070.00717.81
7.1.70.0000.01017.14
7.1.60.0140.01119.70
7.1.50.0130.01016.75
7.1.00.0100.07022.35
7.0.200.0030.00316.39
7.0.140.0070.07022.00
7.0.90.0170.06019.97
7.0.80.0200.08019.90
7.0.70.0100.07319.94
7.0.60.0100.07319.94
7.0.50.0030.06020.27
7.0.40.0070.06320.07
7.0.30.0000.05719.99
7.0.20.0100.08020.08
7.0.10.0070.08320.04
7.0.00.0070.06020.05
5.6.280.0030.07320.90
5.6.240.0130.06720.69
5.6.230.0100.07320.59
5.6.220.0100.06020.48
5.6.210.0030.08720.66
5.6.200.0130.08021.14
5.6.190.0000.09021.08
5.6.180.0170.04321.08
5.6.170.0000.04720.93
5.6.160.0130.08321.13
5.6.150.0070.08021.12
5.6.140.0100.08021.04
5.6.130.0100.07321.01
5.6.120.0130.05721.05
5.6.110.0070.08721.06
5.6.100.0070.08021.02
5.6.90.0170.07320.95
5.6.80.0070.07720.43
5.6.70.0100.07720.41
5.6.60.0130.07720.41
5.6.50.0100.07020.33
5.6.40.0030.08720.29
5.6.30.0230.06020.31
5.6.20.0000.05720.43
5.6.10.0130.07020.37
5.6.00.0100.04320.45
5.5.380.0030.08720.34
5.5.370.0070.08320.39
5.5.360.0070.08320.34
5.5.350.0170.06720.36
5.5.340.0030.09020.88
5.5.330.0030.05320.77
5.5.320.0070.05020.80
5.5.310.0070.08320.77
5.5.300.0100.07320.77
5.5.290.0030.08020.76
5.5.280.0000.09020.86
5.5.270.0170.07720.89
5.5.260.0130.07720.76
5.5.250.0100.07320.69
5.5.240.0130.06320.02
5.5.230.0070.07020.10
5.5.220.0100.06720.29
5.5.210.0070.08320.13
5.5.200.0070.08020.18
5.5.190.0000.05720.14
5.5.180.0070.08020.13
5.5.160.0070.05020.18
5.5.150.0030.05320.07
5.5.140.0130.03320.27
5.5.130.0030.08320.26
5.5.120.0030.07720.07
5.5.110.0100.07320.16
5.5.100.0130.07320.06
5.5.90.0070.06020.02
5.5.80.0030.07320.06
5.5.70.0130.07719.92
5.5.60.0070.04720.06
5.5.50.0070.03720.07
5.5.40.0070.03720.13
5.5.30.0100.07720.04
5.5.20.0100.07719.98
5.5.10.0000.08320.15
5.5.00.0030.08720.00
5.4.450.0030.06019.49
5.4.440.0170.07319.44
5.4.430.0100.07019.43
5.4.420.0030.06719.13
5.4.410.0100.07718.95
5.4.400.0170.07319.08
5.4.390.0130.07718.93
5.4.380.0100.07019.23
5.4.370.0030.08019.12
5.4.360.0100.07319.08
5.4.350.0000.08318.77
5.4.340.0100.07719.04
5.4.320.0070.07019.11
5.4.310.0030.07719.05
5.4.300.0100.07319.14
5.4.290.0000.08019.11
5.4.280.0070.05019.22
5.4.270.0070.07318.93
5.4.260.0070.07019.11
5.4.250.0000.08019.22
5.4.240.0070.07719.03
5.4.230.0070.07319.09
5.4.220.0130.07019.11
5.4.210.0130.05018.80
5.4.200.0170.07019.06
5.4.190.0070.07718.89
5.4.180.0130.05019.22
5.4.170.0070.07718.91
5.4.160.0130.07019.00
5.4.150.0030.08319.01
5.4.140.0100.05016.22
5.4.130.0100.07016.03
5.4.120.0100.06716.30
5.4.110.0130.04016.34
5.4.100.0070.05716.42
5.4.90.0070.04716.21
5.4.80.0070.03316.31
5.4.70.0070.03716.20
5.4.60.0130.05316.38
5.4.50.0000.08016.41
5.4.40.0100.06716.22
5.4.30.0030.07016.34
5.4.20.0030.05016.41
5.4.10.0000.07716.38
5.4.00.0070.07315.76
5.3.290.0100.05014.64
5.3.280.0070.05014.42
5.3.270.0000.08314.45
5.3.260.0100.06714.54
5.3.250.0030.04314.46
5.3.240.0030.07014.59
5.3.230.0070.06014.55
5.3.220.0030.04714.47
5.3.210.0000.04314.38
5.3.200.0070.05314.43
5.3.190.0130.07014.49
5.3.180.0130.03014.54
5.3.170.0030.06314.54
5.3.160.0130.06014.52
5.3.150.0100.07314.55
5.3.140.0100.07314.41
5.3.130.0100.05314.40
5.3.120.0130.07014.50
5.3.110.0200.06314.49
5.3.100.0030.07313.98
5.3.90.0130.06314.00
5.3.80.0030.06313.99
5.3.70.0030.05013.97
5.3.60.0030.07713.86
5.3.50.0130.04713.89
5.3.40.0030.07313.88
5.3.30.0100.06713.76
5.3.20.0070.07013.64
5.3.10.0070.07013.66
5.3.00.0130.06713.50
5.2.170.0070.06310.96
5.2.160.0070.05310.97
5.2.150.0030.04311.13
5.2.140.0030.06310.93
5.2.130.0070.06011.02
5.2.120.0070.05711.11
5.2.110.0030.04011.17
5.2.100.0070.06011.05
5.2.90.0030.05711.14
5.2.80.0100.04310.95
5.2.70.0070.05710.95
5.2.60.0030.06311.03
5.2.50.0030.06311.08
5.2.40.0100.05010.86
5.2.30.0030.04010.96
5.2.20.0030.06310.79
5.2.10.0070.05710.92
5.2.00.0100.05710.73
5.1.60.0070.05010.01
5.1.50.0030.0579.86
5.1.40.0030.0539.80
5.1.30.0030.05010.28
5.1.20.0100.05310.37
5.1.10.0070.05310.09
5.1.00.0030.05310.05
5.0.50.0000.0478.58
5.0.40.0100.0338.41
5.0.30.0030.0538.24
5.0.20.0000.0408.20
5.0.10.0030.0438.22
5.0.00.0000.0638.27
4.4.90.0000.0377.77
4.4.80.0030.0337.77
4.4.70.0000.0377.77
4.4.60.0030.0207.77
4.4.50.0030.0377.77
4.4.40.0000.0437.77
4.4.30.0070.0237.77
4.4.20.0070.0237.77
4.4.10.0030.0177.77
4.4.00.0000.0607.77
4.3.110.0000.0377.77
4.3.100.0070.0307.77
4.3.90.0000.0377.77
4.3.80.0000.0437.77
4.3.70.0070.0277.77
4.3.60.0000.0237.77
4.3.50.0030.0337.77
4.3.40.0000.0537.77
4.3.30.0030.0237.77
4.3.20.0030.0277.77
4.3.10.0030.0377.77
4.3.00.0030.0337.77

preferences:
47.7 ms | 400 KiB | 5 Q