3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(json_encode(['a','b','c'])); var_dump(json_encode([1=>'a',2=>'b',3=>'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)
8.3.60.0070.00718.30
8.3.50.0100.01222.05
8.3.40.0080.00818.72
8.3.30.0070.00720.26
8.3.20.0050.00220.21
8.3.10.0000.00821.83
8.3.00.0050.00322.48
8.2.180.0070.01116.32
8.2.170.0070.01022.96
8.2.160.0100.00722.11
8.2.150.0060.00324.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00419.11
8.2.110.0060.00322.04
8.2.100.0060.00617.54
8.2.90.0030.00519.05
8.2.80.0000.00819.45
8.2.70.0040.00417.50
8.2.60.0040.00417.80
8.2.50.0080.00018.07
8.2.40.0000.00717.78
8.2.30.0040.00417.80
8.2.20.0070.00017.51
8.2.10.0040.00417.64
8.2.00.0030.00717.48
8.1.280.0060.00925.92
8.1.270.0000.00823.99
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0040.00423.97
8.1.230.0000.01118.80
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0030.00717.35
8.1.190.0040.00417.28
8.1.180.0100.00018.10
8.1.170.0000.00818.36
8.1.160.0000.00820.80
8.1.150.0070.00018.55
8.1.140.0000.00717.23
8.1.130.0030.00317.70
8.1.120.0030.00317.25
8.1.110.0030.00517.30
8.1.100.0070.00017.24
8.1.90.0030.00417.23
8.1.80.0000.00717.21
8.1.70.0070.00017.20
8.1.60.0040.00417.47
8.1.50.0050.00217.42
8.1.40.0060.00317.40
8.1.30.0040.00417.47
8.1.20.0030.00617.48
8.1.10.0030.00517.30
8.1.00.0060.00617.27
8.0.300.0040.00418.77
8.0.290.0070.00016.93
8.0.280.0000.00718.16
8.0.270.0050.00317.08
8.0.260.0030.00316.68
8.0.250.0020.00516.73
8.0.240.0080.00016.87
8.0.230.0000.00716.70
8.0.220.0000.00916.77
8.0.210.0030.00316.74
8.0.200.0070.00016.68
8.0.190.0040.00416.78
8.0.180.0110.00016.75
8.0.170.0070.00016.82
8.0.160.0070.00016.88
8.0.150.0070.00016.76
8.0.140.0040.00416.75
8.0.130.0030.00313.16
8.0.120.0000.00816.75
8.0.110.0030.00516.63
8.0.100.0040.00416.61
8.0.90.0000.00816.65
8.0.80.0030.01216.72
8.0.70.0000.00816.78
8.0.60.0050.00216.78
8.0.50.0040.00416.76
8.0.30.0150.00516.88
8.0.20.0030.01517.40
8.0.10.0070.00016.72
8.0.00.0080.00916.65
7.4.330.0050.00015.00
7.4.320.0000.00616.49
7.4.300.0030.00316.35
7.4.290.0030.00416.43
7.4.280.0030.00316.46
7.4.270.0040.00416.45
7.4.260.0040.00416.41
7.4.250.0040.00416.30
7.4.240.0030.00316.29
7.4.230.0050.00316.29
7.4.220.0070.01016.48
7.4.210.0040.01116.46
7.4.200.0050.00216.27
7.4.190.0050.00216.39
7.4.160.0040.01116.34
7.4.150.0110.00717.40
7.4.140.0100.00817.86
7.4.130.0080.00816.27
7.4.120.0100.00616.36
7.4.110.0030.01516.31
7.4.100.0080.00816.23
7.4.90.0140.00616.30
7.4.80.0050.01219.39
7.4.70.0090.00616.37
7.4.60.0090.00616.19
7.4.50.0030.00516.44
7.4.40.0090.00622.77
7.4.30.0110.00516.29
7.4.00.0100.00715.00
7.3.330.0030.00313.01
7.3.320.0050.00012.86
7.3.310.0000.00716.12
7.3.300.0000.00715.98
7.3.290.0090.00616.07
7.3.280.0080.00916.12
7.3.270.0130.01017.40
7.3.260.0140.00316.39
7.3.250.0100.00716.09
7.3.240.0100.00716.18
7.3.230.0070.01016.41
7.3.210.0110.00516.45
7.3.200.0120.00619.39
7.3.190.0120.00916.16
7.3.180.0090.01215.99
7.3.170.0080.01316.27
7.3.160.0090.00616.32
7.3.120.0120.00314.76
7.3.10.0060.01016.61
7.3.00.0100.00316.45
7.2.330.0070.01016.14
7.2.320.0100.00716.19
7.2.310.0100.01316.29
7.2.300.0070.01016.32
7.2.290.0080.00816.35
7.2.130.0090.00616.63
7.2.120.0100.00316.76
7.2.110.0040.01116.70
7.2.100.0030.00916.45
7.2.90.0040.01116.37
7.2.80.0060.00316.83
7.2.70.0000.01616.80
7.2.60.0090.00616.65
7.2.50.0100.00316.73
7.2.40.0090.00416.56
7.2.30.0030.01016.57
7.2.20.0050.00516.87
7.2.10.0030.01016.64
7.2.00.0030.00917.76
7.1.250.0030.00615.36
7.1.100.0060.00917.93
7.1.70.0000.00817.12
7.1.60.0070.01719.43
7.1.50.0070.01616.86
7.1.00.0030.07722.43
7.0.200.0280.00414.47
7.0.140.0070.07022.00
7.0.90.0000.08019.85
7.0.80.0130.08019.95
7.0.70.0200.06720.01
7.0.60.0030.05019.97
7.0.50.0500.04720.32
7.0.40.0130.08320.11
7.0.30.0070.05320.17
7.0.20.0100.08020.00
7.0.10.0170.07020.02
7.0.00.0070.06720.02
5.6.280.0130.06320.88
5.6.240.0030.09320.59
5.6.230.0070.07020.62
5.6.220.0100.07720.48
5.6.210.0070.05320.66
5.6.200.0070.05721.11
5.6.190.0030.08321.16
5.6.180.0100.08021.00
5.6.170.0000.09021.07
5.6.160.0170.07321.13
5.6.150.0030.08721.02
5.6.140.0030.08321.16
5.6.130.0130.05321.00
5.6.120.0130.04721.02
5.6.110.0230.06720.92
5.6.100.0070.07020.99
5.6.90.0130.07720.96
5.6.80.0070.08020.41
5.6.70.0130.07020.51
5.6.60.0100.07720.53
5.6.50.0100.06720.34
5.6.40.0200.06720.29
5.6.30.0030.08320.39
5.6.20.0130.07020.42
5.6.10.0030.06320.35
5.6.00.0030.06320.42
5.5.380.0030.07320.48
5.5.370.0070.06020.34
5.5.360.0070.05320.50
5.5.350.0070.04320.32
5.5.340.0100.07720.91
5.5.330.0100.07720.89
5.5.320.0100.08320.91
5.5.310.0100.07320.89
5.5.300.0000.07020.90
5.5.290.0130.05020.75
5.5.280.0100.08020.82
5.5.270.0030.05020.62
5.5.260.0100.06720.85
5.5.250.0170.07020.58
5.5.240.0130.07020.13
5.5.230.0130.07020.13
5.5.220.0130.06320.01
5.5.210.0100.08020.23
5.5.200.0070.04320.17
5.5.190.0030.05720.14
5.5.180.0170.06720.27
5.5.160.0130.07320.10
5.5.150.0070.07720.20
5.5.140.0170.04020.27
5.5.130.0130.07020.16
5.5.120.0000.08720.14
5.5.110.0030.04320.09
5.5.100.0070.07720.11
5.5.90.0070.06720.09
5.5.80.0100.04020.06
5.5.70.0130.03320.03
5.5.60.0100.03320.08
5.5.50.0130.06720.08
5.5.40.0030.08720.07
5.5.30.0070.04019.94
5.5.20.0070.07720.02
5.5.10.0030.04719.95
5.5.00.0070.06020.04
5.4.450.0130.07319.27
5.4.440.0000.05319.35
5.4.430.0030.08319.22
5.4.420.0070.08019.32
5.4.410.0070.05019.16
5.4.400.0070.08318.82
5.4.390.0030.08018.90
5.4.380.0000.08018.78
5.4.370.0200.06318.96
5.4.360.0070.06718.95
5.4.350.0130.05018.94
5.4.340.0130.07019.03
5.4.320.0030.05319.14
5.4.310.0070.05319.10
5.4.300.0030.05019.04
5.4.290.0000.04319.23
5.4.280.0030.07719.11
5.4.270.0100.03719.14
5.4.260.0070.04018.81
5.4.250.0130.03718.95
5.4.240.0070.05018.99
5.4.230.0000.04019.04
5.4.220.0030.04018.96
5.4.210.0070.05718.97
5.4.200.0100.07318.97
5.4.190.0100.07318.96
5.4.180.0200.06018.80
5.4.170.0100.08018.93
5.4.160.0000.07319.12
5.4.150.0130.04718.94
5.4.140.0000.05716.24
5.4.130.0030.07716.07
5.4.120.0000.07716.23
5.4.110.0170.06316.21
5.4.100.0030.03716.36
5.4.90.0100.03016.20
5.4.80.0030.05016.31
5.4.70.0100.05716.43
5.4.60.0100.05016.33
5.4.50.0070.03316.33
5.4.40.0100.07716.45
5.4.30.0030.07716.41
5.4.20.0070.05316.37
5.4.10.0030.06716.40
5.4.00.0130.06015.77
5.3.290.0000.08014.63
5.3.280.0070.08014.53
5.3.270.0130.04014.52
5.3.260.0130.05014.52
5.3.250.0100.08014.60
5.3.240.0030.08314.59
5.3.230.0130.06314.61
5.3.220.0030.07714.52
5.3.210.0030.04314.40
5.3.200.0100.04014.41
5.3.190.0100.05314.54
5.3.180.0030.07714.40
5.3.170.0100.05314.38
5.3.160.0070.03714.38
5.3.150.0070.03314.52
5.3.140.0070.08014.46
5.3.130.0070.07714.55
5.3.120.0070.06314.40
5.3.110.0030.08314.47
5.3.100.0070.07313.90
5.3.90.0070.06313.86
5.3.80.0030.06013.79
5.3.70.0100.04713.79
5.3.60.0070.07313.96
5.3.50.0130.04013.85
5.3.40.0070.03713.90
5.3.30.0170.05013.91
5.3.20.0130.05713.55
5.3.10.0100.05013.67
5.3.00.0070.04313.63
5.2.170.0070.06011.16
5.2.160.0030.04310.98
5.2.150.0000.06711.06
5.2.140.0100.03711.13
5.2.130.0100.05310.89
5.2.120.0070.06011.02
5.2.110.0100.03311.12
5.2.100.0000.06011.02
5.2.90.0030.03010.89
5.2.80.0100.02711.05
5.2.70.0030.03011.09
5.2.60.0030.05011.01
5.2.50.0000.03010.83
5.2.40.0000.03010.86
5.2.30.0000.03310.83
5.2.20.0030.03010.80
5.2.10.0030.02710.91
5.2.00.0070.02710.79
5.1.60.0000.0279.97
5.1.50.0000.0279.83
5.1.40.0000.02710.02
5.1.30.0030.02710.38
5.1.20.0030.02310.38
5.1.10.0070.02010.05
5.1.00.0000.0309.90
5.0.50.0000.0208.58
5.0.40.0000.0208.41
5.0.30.0070.0238.25
5.0.20.0000.0278.30
5.0.10.0030.0178.04
5.0.00.0030.0278.23
4.4.90.0000.0237.51
4.4.80.0000.0207.51
4.4.70.0030.0137.51
4.4.60.0030.0237.51
4.4.50.0030.0137.51
4.4.40.0030.0237.51
4.4.30.0000.0177.51
4.4.20.0000.0177.51
4.4.10.0000.0177.51
4.4.00.0000.0237.51
4.3.110.0000.0177.51
4.3.100.0000.0137.51
4.3.90.0000.0177.51
4.3.80.0030.0237.51
4.3.70.0000.0137.51
4.3.60.0030.0137.51
4.3.50.0030.0137.51
4.3.40.0000.0237.51
4.3.30.0000.0137.51
4.3.20.0000.0177.51
4.3.10.0000.0137.51
4.3.00.0000.0137.51

preferences:
47.22 ms | 401 KiB | 5 Q