3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(json_encode(['a' => ['b' => 'B', 'c' => 'C']], JSON_PRETTY_PRINT));

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)
8.3.40.0110.00418.71
8.3.30.0140.00018.74
8.3.20.0080.00018.49
8.3.10.0040.00420.96
8.3.00.0040.00423.63
8.2.170.0100.01022.96
8.2.160.0100.00620.39
8.2.150.0040.00424.18
8.2.140.0030.00624.66
8.2.130.0040.00426.16
8.2.120.0000.00819.52
8.2.110.0050.00520.38
8.2.100.0060.00617.72
8.2.90.0040.00418.97
8.2.80.0050.00317.97
8.2.70.0040.00417.38
8.2.60.0040.00417.80
8.2.50.0030.00618.07
8.2.40.0000.00818.16
8.2.30.0040.00419.43
8.2.20.0050.00317.43
8.2.10.0050.00217.63
8.2.00.0000.00817.59
8.1.270.0080.00023.99
8.1.260.0120.00326.35
8.1.250.0070.00428.09
8.1.240.0040.00722.37
8.1.230.0040.00820.91
8.1.220.0030.00518.77
8.1.210.0040.00418.91
8.1.200.0060.00317.22
8.1.190.0050.00317.28
8.1.180.0040.00418.10
8.1.170.0040.00418.52
8.1.160.0040.00418.80
8.1.150.0080.00018.49
8.1.140.0070.00017.32
8.1.130.0030.00317.80
8.1.120.0000.00717.18
8.1.110.0060.00317.32
8.1.100.0000.00817.30
8.1.90.0000.00717.32
8.1.80.0000.00717.31
8.1.70.0070.00017.21
8.1.60.0040.00417.49
8.1.50.0020.00517.22
8.1.40.0040.00417.34
8.1.30.0050.00317.52
8.1.20.0040.00417.54
8.1.10.0000.00817.29
8.1.00.0070.00017.34
8.0.300.0070.00019.85
8.0.290.0030.00317.16
8.0.280.0000.00718.16
8.0.270.0070.00017.12
8.0.260.0030.00316.56
8.0.250.0070.00016.74
8.0.240.0030.00616.86
8.0.230.0000.00716.69
8.0.220.0070.00016.79
8.0.210.0040.00416.72
8.0.200.0020.00516.88
8.0.190.0040.00416.83
8.0.180.0040.00416.73
8.0.170.0030.00616.83
8.0.160.0000.00716.69
8.0.150.0030.00316.68
8.0.140.0000.00816.66
8.0.130.0040.00413.12
8.0.120.0040.00416.73
8.0.110.0030.00516.86
8.0.100.0000.00716.62
8.0.90.0040.00416.79
8.0.80.0030.01316.65
8.0.70.0040.00416.58
8.0.60.0040.00416.63
8.0.50.0030.00316.65
8.0.30.0090.01016.80
8.0.20.0080.01017.40
8.0.10.0040.00416.75
8.0.00.0090.00916.84
7.4.330.0030.00314.64
7.4.320.0030.00616.53
7.4.300.0030.00316.39
7.4.290.0030.00316.36
7.4.280.0030.00316.35
7.4.270.0030.00316.52
7.4.260.0000.00713.02
7.4.250.0030.00316.45
7.4.240.0070.00016.25
7.4.230.0000.00716.28
7.4.220.0140.00616.43
7.4.210.0080.00916.39
7.4.200.0000.00716.26
7.4.190.0070.00016.51
7.4.160.0060.01816.62
7.4.150.0070.01717.40
7.4.140.0110.00817.86
7.4.130.0040.01316.26
7.4.120.0150.00316.40
7.4.110.0070.01116.21
7.4.100.0060.01116.30
7.4.90.0140.00416.15
7.4.80.0100.00719.39
7.4.70.0070.01016.17
7.4.60.0130.01316.16
7.4.50.0040.00415.92
7.4.40.0070.01022.52
7.4.30.0080.00816.39
7.4.00.0030.01314.95
7.3.330.0050.00013.00
7.3.320.0030.00313.12
7.3.310.0000.00715.99
7.3.300.0000.00716.00
7.3.290.0070.01016.17
7.3.280.0060.01116.22
7.3.270.0060.01017.40
7.3.260.0130.00918.24
7.3.250.0100.00916.11
7.3.240.0040.01216.27
7.3.230.0100.00616.39
7.3.210.0100.01016.43
7.3.200.0100.00719.39
7.3.190.0070.01016.17
7.3.180.0110.00516.30
7.3.170.0110.00516.27
7.3.160.0110.00516.24
7.3.120.0030.01514.64
7.3.10.0030.01015.88
7.3.00.0070.00716.38
7.2.330.0070.01016.25
7.2.320.0060.01616.51
7.2.310.0060.01116.30
7.2.300.0030.01316.41
7.2.290.0150.01016.32
7.2.130.0140.00816.16
7.2.120.0180.00016.36
7.2.110.0060.00816.36
7.2.100.0090.00316.15
7.2.90.0090.00616.38
7.2.80.0060.00916.60
7.2.70.0180.00016.63
7.2.60.0040.01116.59
7.2.50.0070.00716.63
7.2.40.0130.00316.55
7.2.30.0050.00916.30
7.2.20.0100.00716.37
7.2.10.0090.00016.43
7.2.00.0060.00917.81
7.1.250.0030.00915.32
7.1.100.0040.01218.07
7.1.70.0040.00817.02
7.1.60.0070.01719.40
7.1.50.0060.01316.69
7.1.00.0030.06322.51
7.0.200.0030.00316.68
7.0.140.0000.07322.11
7.0.90.0500.04720.01
7.0.80.0730.07719.95
7.0.70.0500.06319.90
7.0.60.0570.05020.05
7.0.50.0700.07020.30
7.0.40.0070.07720.05
7.0.30.0130.04720.10
7.0.20.0030.06020.13
7.0.10.0100.08720.07
7.0.00.0070.08720.13
5.6.280.0000.07721.12
5.6.240.0030.04720.59
5.6.230.0130.08320.61
5.6.220.0130.07720.70
5.6.210.0070.07720.45
5.6.200.0200.07021.05
5.6.190.0070.06020.94
5.6.180.0070.08721.07
5.6.170.0070.05021.04
5.6.160.0130.06720.95
5.6.150.0100.07321.02
5.6.140.0100.03721.06
5.6.130.0030.04320.94
5.6.120.0000.04721.09
5.6.110.0100.05320.93
5.6.100.0030.04321.08
5.6.90.0030.04720.92
5.6.80.0000.04320.30
5.6.70.0070.03720.32
5.6.60.0030.04020.47
5.6.50.0070.04320.43
5.6.40.0000.05320.43
5.6.30.0070.06320.40
5.6.20.0070.03720.51
5.6.10.0030.04320.45
5.6.00.0030.06720.32
5.5.380.0030.05320.43
5.5.370.0100.07020.37
5.5.360.0030.04320.50
5.5.350.0030.06320.41
5.5.340.0070.06320.83
5.5.330.0100.08020.80
5.5.320.0000.06020.63
5.5.310.0030.08320.76
5.5.300.0070.06020.79
5.5.290.0100.04320.90
5.5.280.0070.04020.72
5.5.270.0100.03720.81
5.5.260.0000.06020.76
5.5.250.0100.07320.66
5.5.240.0070.03720.28
5.5.230.0030.04320.26
5.5.220.0000.03720.21
5.5.210.0000.04720.01
5.5.200.0070.03720.14
5.5.190.0030.04020.14
5.5.180.0100.06020.14
5.5.160.0030.08320.24
5.5.150.0070.03320.14
5.5.140.0030.04020.11
5.5.130.0100.04319.95
5.5.120.0000.04720.11
5.5.110.0000.04020.23
5.5.100.0000.05020.15
5.5.90.0030.07319.96
5.5.80.0070.05320.15
5.5.70.0030.05720.08
5.5.60.0070.04019.93
5.5.50.0100.04320.05
5.5.40.0030.04020.14
5.5.30.0000.04020.13
5.5.20.0000.04720.13
5.5.10.0030.04020.11
5.5.00.0130.03319.95
5.4.450.0000.05019.38
5.4.440.0000.04319.47
5.4.430.0070.05319.35
5.4.420.0000.05319.44
5.4.410.0030.04019.16
5.4.400.0070.08019.10
5.4.390.0070.07018.81
5.4.380.0030.05319.11
5.4.370.0000.04019.03
5.4.360.0000.04719.03
5.4.350.0030.03718.96
5.4.340.0100.03019.07
5.4.320.0000.03719.04
5.4.310.0070.03719.05
5.4.300.0030.03319.02
5.4.290.0030.06719.13
5.4.280.0030.05719.22
5.4.270.0030.03719.04
5.4.260.0000.03719.09
5.4.250.0070.03018.95
5.4.240.0070.03318.77
5.4.230.0100.03318.84
5.4.220.0000.04019.11
5.4.210.0000.04019.14
5.4.200.0070.03319.09
5.4.190.0000.04318.93
5.4.180.0100.02718.89
5.4.170.0130.02718.95
5.4.160.0100.08019.10
5.4.150.0100.04718.88
5.4.140.0030.04016.32
5.4.130.0070.06316.31
5.4.120.0070.07316.07
5.4.110.0070.07316.42
5.4.100.0000.04016.40
5.4.90.0070.06016.48
5.4.80.0030.07016.31
5.4.70.0000.05016.29
5.4.60.0100.07016.30
5.4.50.0000.05716.39
5.4.40.0100.04716.42
5.4.30.0100.03316.27
5.4.20.0000.07716.43
5.4.10.0130.05316.20
5.4.00.0300.05015.46
5.3.290.0000.04714.66
5.3.280.0030.03714.55
5.3.270.0070.03314.57
5.3.260.0030.05314.43
5.3.250.0030.06314.59
5.3.240.0070.04314.46
5.3.230.0100.05314.42
5.3.220.0070.07314.56
5.3.210.0000.05314.52
5.3.200.0130.03714.56
5.3.190.0030.05714.42
5.3.180.0070.07714.52
5.3.170.0000.04714.40
5.3.160.0070.05314.50
5.3.150.0070.05314.56
5.3.140.0070.07314.51
5.3.130.0100.07014.41
5.3.120.0030.05714.37
5.3.110.0130.06314.54
5.3.100.0070.07314.03
5.3.90.0070.04314.01
5.3.80.0070.07313.77
5.3.70.0070.04713.93
5.3.60.0000.04013.96
5.3.50.0070.07013.94
5.3.40.0100.07713.89
5.3.30.0000.05313.87
5.3.20.0030.04013.69
5.3.10.0130.06713.66
5.3.00.0100.05713.63
5.2.170.0100.06311.07
5.2.160.0130.05310.98
5.2.150.0030.06311.14
5.2.140.0130.02711.09
5.2.130.0030.04311.12
5.2.120.0070.05711.10
5.2.110.0000.06310.95
5.2.100.0100.06010.95
5.2.90.0070.04311.05
5.2.80.0100.04311.09
5.2.70.0070.03711.01
5.2.60.0070.04310.91
5.2.50.0000.06310.97
5.2.40.0130.05010.99
5.2.30.0130.05711.04
5.2.20.0030.06010.94
5.2.10.0030.05010.88
5.2.00.0030.05710.79
5.1.60.0070.0509.82
5.1.50.0100.05010.04
5.1.40.0030.0439.96
5.1.30.0000.06010.26
5.1.20.0030.03310.27
5.1.10.0000.04710.05
5.1.00.0030.05310.12
5.0.50.0030.0438.53
5.0.40.0100.0408.46
5.0.30.0030.0308.22
5.0.20.0000.0408.03
5.0.10.0030.0408.27
5.0.00.0000.0678.00
4.4.90.0000.0307.60
4.4.80.0070.0307.60
4.4.70.0070.0277.60
4.4.60.0100.0307.60
4.4.50.0100.0277.60
4.4.40.0070.0437.60
4.4.30.0030.0237.60
4.4.20.0000.0337.60
4.4.10.0030.0377.60
4.4.00.0030.0537.60
4.3.110.0000.0277.60
4.3.100.0000.0377.60
4.3.90.0000.0307.60
4.3.80.0030.0337.60
4.3.70.0000.0237.60
4.3.60.0000.0337.60
4.3.50.0070.0307.60
4.3.40.0070.0277.60
4.3.30.0000.0237.60
4.3.20.0030.0337.60
4.3.10.0030.0277.60
4.3.00.0030.0307.60

preferences:
49.06 ms | 400 KiB | 5 Q