3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo implements \JsonSerializable { protected $bar; protected $foobar; public $mybar; public function getBar() { return $this->bar; } public function jsonSerialize() { return ['mybar'=>'foo']; } } var_dump(json_encode(new Foo));

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)
8.3.60.0130.00318.56
8.3.50.0120.00721.02
8.3.40.0040.01118.76
8.3.30.0040.01120.29
8.3.20.0110.00320.16
8.3.10.0000.00822.10
8.3.00.0000.00822.50
8.2.180.0090.00916.75
8.2.170.0030.01222.96
8.2.160.0100.00320.53
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0060.00326.16
8.2.120.0080.00019.58
8.2.110.0030.00722.25
8.2.100.0120.00019.34
8.2.90.0060.00619.11
8.2.80.0040.00419.23
8.2.70.0060.00317.25
8.2.60.0040.00417.93
8.2.50.0080.00018.07
8.2.40.0040.00418.16
8.2.30.0000.00817.97
8.2.20.0040.00417.61
8.2.10.0040.00417.68
8.2.00.0000.00817.67
8.1.280.0060.00925.92
8.1.270.0100.00320.27
8.1.260.0050.00326.35
8.1.250.0080.00028.09
8.1.240.0030.00623.61
8.1.230.0000.01119.16
8.1.220.0040.00417.79
8.1.210.0000.00818.77
8.1.200.0000.00917.22
8.1.190.0050.00317.53
8.1.180.0040.00418.82
8.1.170.0050.00318.59
8.1.160.0000.00722.20
8.1.150.0070.00318.56
8.1.140.0030.00517.39
8.1.130.0030.00317.82
8.1.120.0040.00417.43
8.1.110.0040.00417.38
8.1.100.0000.00717.31
8.1.90.0050.00217.41
8.1.80.0040.00417.38
8.1.70.0030.00317.35
8.1.60.0030.00617.53
8.1.50.0040.00417.50
8.1.40.0060.00317.37
8.1.30.0070.00017.55
8.1.20.0030.00617.61
8.1.10.0040.00417.42
8.1.00.0000.00717.39
8.0.300.0050.00318.77
8.0.290.0000.00717.18
8.0.280.0050.00218.44
8.0.270.0000.00717.21
8.0.260.0030.00316.69
8.0.250.0070.00017.00
8.0.240.0000.00716.84
8.0.230.0000.00716.78
8.0.220.0040.00416.73
8.0.210.0030.00316.81
8.0.200.0000.00716.72
8.0.190.0060.00316.75
8.0.180.0070.00016.74
8.0.170.0050.00316.86
8.0.160.0030.00516.80
8.0.150.0060.00316.79
8.0.140.0080.00016.67
8.0.130.0050.00013.22
8.0.120.0040.00416.76
8.0.110.0030.00516.79
8.0.100.0050.00316.68
8.0.90.0050.00216.89
8.0.80.0070.00716.84
8.0.70.0030.00516.61
8.0.60.0000.00716.72
8.0.50.0040.00416.87
8.0.30.0110.00817.02
8.0.20.0090.01017.40
8.0.10.0000.00716.99
8.0.00.0130.00716.68
7.4.330.0050.00015.00
7.4.320.0030.00316.54
7.4.300.0030.00316.53
7.4.290.0070.00016.54
7.4.280.0000.00716.48
7.4.270.0030.00516.36
7.4.260.0050.00216.45
7.4.250.0000.00716.43
7.4.240.0000.00716.47
7.4.230.0000.00716.58
7.4.220.0090.01316.51
7.4.210.0050.01116.56
7.4.200.0030.00316.33
7.4.190.0040.00416.68
7.4.160.0100.00716.21
7.4.150.0100.00717.40
7.4.140.0130.00517.86
7.4.130.0100.00816.41
7.4.120.0100.01016.44
7.4.110.0060.01116.79
7.4.100.0130.00316.51
7.4.90.0040.01216.42
7.4.80.0150.00719.39
7.4.70.0030.01316.38
7.4.60.0070.00916.39
7.4.50.0000.00816.49
7.4.40.0030.01122.77
7.4.30.0060.01216.39
7.4.00.0030.01014.74
7.3.330.0050.00013.18
7.3.320.0030.00313.25
7.3.310.0040.00416.25
7.3.300.0000.00716.18
7.3.290.0140.00016.25
7.3.280.0110.00716.24
7.3.270.0070.01017.40
7.3.260.0150.00616.45
7.3.250.0120.00516.52
7.3.240.0080.01116.15
7.3.230.0120.00416.44
7.3.210.0090.00916.27
7.3.200.0030.01619.39
7.3.190.0140.00316.22
7.3.180.0080.00816.53
7.3.170.0070.00716.43
7.3.160.0080.00816.24
7.3.120.0070.00414.86
7.2.330.0090.00916.43
7.2.320.0060.01616.46
7.2.310.0070.01016.61
7.2.300.0140.00316.64
7.2.290.0100.00716.61
7.2.80.0030.01316.48
7.2.60.0100.00316.82
7.2.00.0000.01519.22
7.1.200.0290.00415.07
7.1.100.0080.00417.96
7.1.70.0000.00717.06
7.1.60.0100.01619.29
7.1.50.0090.01216.85
7.1.00.0070.08722.37
7.0.200.0030.01416.73
7.0.140.0030.07321.96
7.0.90.0670.04720.09
7.0.80.0630.08319.80
7.0.70.0470.06019.86
7.0.60.0500.04719.90
7.0.50.0570.08320.36
7.0.40.0000.04720.05
7.0.30.0100.07720.17
7.0.20.0030.08320.14
7.0.10.0170.06320.06
7.0.00.0100.04720.13
5.6.280.0070.07021.13
5.6.240.0070.06720.58
5.6.230.0100.06320.57
5.6.220.0000.06320.57
5.6.210.0130.07020.51
5.6.200.0030.08721.00
5.6.190.0070.04021.06
5.6.180.0130.08021.11
5.6.170.0070.08320.94
5.6.160.0030.04721.07
5.6.150.0030.05321.09
5.6.140.0170.07721.11
5.6.130.0030.06721.02
5.6.120.0070.06721.02
5.6.110.0030.08721.03
5.6.100.0030.05721.15
5.6.90.0030.09021.12
5.6.80.0070.07320.35
5.6.70.0100.07720.55
5.6.60.0100.07720.30
5.6.50.0130.08020.47
5.6.40.0000.07020.41
5.6.30.0100.06320.49
5.6.20.0030.05320.31
5.6.10.0130.06020.46
5.6.00.0030.07720.47
5.5.380.0130.06720.41
5.5.370.0130.07720.37
5.5.360.0200.07020.45
5.5.350.0100.07320.32
5.5.340.0070.04720.78
5.5.330.0070.04720.87
5.5.320.0100.07720.91
5.5.310.0070.04320.88
5.5.300.0030.08320.91
5.5.290.0100.07320.77
5.5.280.0070.07720.91
5.5.270.0170.06720.72
5.5.260.0070.08020.86
5.5.250.0170.05720.45
5.5.240.0030.08020.17
5.5.230.0070.08020.16
5.5.220.0170.03720.18
5.5.210.0070.04720.27
5.5.200.0170.07720.18
5.5.190.0000.08720.23
5.5.180.0100.08020.13
5.5.160.0030.05320.26
5.5.150.0130.07020.15
5.5.140.0200.06720.08
5.5.130.0070.05020.16
5.5.120.0030.07020.21
5.5.110.0070.07720.27
5.5.100.0070.04720.07
5.5.90.0100.05720.02
5.5.80.0130.07020.10
5.5.70.0070.04720.15
5.5.60.0030.08020.05
5.5.50.0100.04720.03
5.5.40.0070.07719.94
5.5.30.0100.07320.08
5.5.20.0070.04320.15
5.5.10.0030.04020.06
5.5.00.0030.05020.02
5.4.450.0070.03719.17
5.4.440.0000.09019.37
5.4.430.0100.07719.34
5.4.420.0170.06719.40
5.4.410.0130.07319.24
5.4.400.0030.04318.82
5.4.390.0070.07719.22
5.4.380.0070.05319.04
5.4.370.0070.05019.05
5.4.360.0070.07319.22
5.4.350.0070.04018.95
5.4.340.0030.06719.13
5.4.320.0000.07719.13
5.4.310.0070.06319.20
5.4.300.0030.07719.02
5.4.290.0100.06719.22
5.4.280.0000.08719.00
5.4.270.0100.07018.86
5.4.260.0030.06719.20
5.4.250.0100.03318.93
5.4.240.0070.07318.84
5.4.230.0130.06319.23
5.4.220.0030.06318.89
5.4.210.0130.07019.11
5.4.200.0030.06719.04
5.4.190.0000.07319.10
5.4.180.0030.04718.85
5.4.170.0030.07319.15
5.4.160.0030.07019.09
5.4.150.0030.08019.02
5.4.140.0130.03716.40
5.4.130.0030.07716.45
5.4.120.0070.07016.36
5.4.110.0130.06316.36
5.4.100.0130.05316.39
5.4.90.0030.06716.27
5.4.80.0070.07716.49
5.4.70.0070.06716.37
5.4.60.0000.04716.29
5.4.50.0070.05316.44
5.4.40.0070.06716.51
5.4.30.0030.07716.36
5.4.20.0070.07316.36
5.4.10.0070.07316.39
5.4.00.0100.04715.59
5.3.290.0030.08314.60
5.3.280.0030.07314.54
5.3.270.0070.07314.70
5.3.260.0100.07314.74
5.3.250.0070.04714.62
5.3.240.0130.07014.58
5.3.230.0070.08014.66
5.3.220.0070.07314.59
5.3.210.0070.07014.51
5.3.200.0070.06714.55
5.3.190.0030.07714.54
5.3.180.0100.07014.48
5.3.170.0070.04314.69
5.3.160.0070.07714.58
5.3.150.0030.07714.54
5.3.140.0030.04714.60
5.3.130.0070.07314.66
5.3.120.0030.07314.52
5.3.110.0100.05714.55
5.3.100.0130.04314.15
5.3.90.0130.03714.14
5.3.80.0030.05014.13
5.3.70.0030.04314.01
5.3.60.0070.04013.92
5.3.50.0000.04713.84
5.3.40.0130.06714.09
5.3.30.0030.05013.90
5.3.20.0030.04713.59
5.3.10.0070.04313.71
5.3.00.0030.04313.75
5.2.170.0070.03311.05
5.2.160.0070.06011.26
5.2.150.0070.05711.13
5.2.140.0070.06311.17
5.2.130.0030.06311.00
5.2.120.0100.05011.01
5.2.110.0100.05711.16
5.2.100.0000.04011.03
5.2.90.0030.06011.16
5.2.80.0330.01311.00
5.2.70.0030.06011.15
5.2.60.0070.05711.11
5.2.50.0070.02711.09
5.2.40.0030.03010.91
5.2.30.0100.06010.96
5.2.20.0000.06311.02
5.2.10.0070.05010.89
5.2.00.0030.05310.64
5.1.60.0070.0539.84
5.1.50.0070.05010.05
5.1.40.0030.0539.99
5.1.30.0100.05010.41
5.1.20.0100.02710.38
5.1.10.0100.05010.18
5.1.00.0000.03310.14
5.0.50.0030.0478.73
5.0.40.0070.0378.73
5.0.30.0070.0608.73
5.0.20.0030.0478.73
5.0.10.0030.0408.73
5.0.00.0030.0338.73
4.4.90.0100.0208.73
4.4.80.0000.0238.73
4.4.70.0000.0238.73
4.4.60.0000.0378.73
4.4.50.0030.0338.73
4.4.40.0030.0438.73
4.4.30.0030.0278.73
4.4.20.0000.0408.73
4.4.10.0000.0308.73
4.4.00.0000.0308.73
4.3.110.0030.0338.73
4.3.100.0030.0338.73
4.3.90.0000.0378.73
4.3.80.0000.0478.73
4.3.70.0070.0278.73
4.3.60.0000.0208.73
4.3.50.0030.0178.73
4.3.40.0030.0278.73
4.3.30.0000.0378.73
4.3.20.0000.0378.73
4.3.10.0030.0278.73
4.3.00.0030.0238.73

preferences:
35 ms | 401 KiB | 5 Q