3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { private $json = "{\"prop1\": 1}"; public function __toString() { return $this->json; } } $obj = new \stdClass; $obj->prop0 = new A; var_dump(json_encode($obj));

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)
8.3.70.0140.00018.56
8.3.60.0180.00316.75
8.3.50.0110.01021.20
8.3.40.0140.00318.70
8.3.30.0140.00018.54
8.3.20.0040.00420.21
8.3.10.0000.00723.66
8.3.00.0040.00419.56
8.2.180.0150.00016.75
8.2.170.0110.00322.96
8.2.160.0100.00720.48
8.2.150.0080.00024.18
8.2.140.0070.00724.66
8.2.130.0040.00426.16
8.2.120.0060.00317.50
8.2.110.0060.00322.10
8.2.100.0060.00617.63
8.2.90.0000.00719.27
8.2.80.0080.00017.97
8.2.70.0030.00617.50
8.2.60.0080.00017.80
8.2.50.0040.00418.07
8.2.40.0000.00819.44
8.2.30.0040.00419.72
8.2.20.0040.00417.72
8.2.10.0050.00318.04
8.2.00.0050.00218.16
8.1.280.0060.00925.92
8.1.270.0180.00020.29
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0090.00022.42
8.1.230.0000.01217.42
8.1.220.0040.00417.76
8.1.210.0000.00818.77
8.1.200.0080.00017.35
8.1.190.0080.00017.35
8.1.180.0080.00018.10
8.1.170.0030.00518.45
8.1.160.0040.00421.94
8.1.150.0000.00818.93
8.1.140.0040.00417.32
8.1.130.0030.00317.69
8.1.120.0040.00417.37
8.1.110.0030.00617.46
8.1.100.0040.00417.46
8.1.90.0000.00717.44
8.1.80.0000.00817.41
8.1.70.0070.00017.34
8.1.60.0000.00817.61
8.1.50.0000.00817.48
8.1.40.0040.00417.50
8.1.30.0060.00317.64
8.1.20.0000.00717.51
8.1.10.0030.00517.41
8.1.00.0040.00417.37
8.0.300.0060.00318.77
8.0.290.0050.00216.75
8.0.280.0030.00318.34
8.0.270.0000.00717.24
8.0.260.0000.00617.12
8.0.250.0040.00416.82
8.0.240.0030.00316.95
8.0.230.0000.00716.92
8.0.220.0000.00716.91
8.0.210.0040.00416.79
8.0.200.0070.00016.96
8.0.190.0000.00816.96
8.0.180.0040.00416.93
8.0.170.0000.00716.99
8.0.160.0000.00816.88
8.0.150.0050.00316.78
8.0.140.0040.00416.89
8.0.130.0070.00013.29
8.0.120.0060.00316.90
8.0.110.0050.00216.70
8.0.100.0000.00916.86
8.0.90.0000.00716.71
8.0.80.0070.01016.85
8.0.70.0070.00016.75
8.0.60.0040.00416.74
8.0.50.0000.00716.95
8.0.30.0090.01016.77
8.0.20.0110.00917.40
8.0.10.0040.00416.90
8.0.00.0090.00816.69
7.4.330.0000.00515.13
7.4.320.0060.00016.53
7.4.300.0030.00316.40
7.4.290.0030.00516.57
7.4.280.0000.00816.56
7.4.270.0030.00316.53
7.4.260.0000.00716.51
7.4.250.0050.00216.50
7.4.240.0050.00316.43
7.4.230.0030.00316.27
7.4.220.0100.00716.46
7.4.210.0060.00916.62
7.4.200.0080.00016.53
7.4.160.0100.00716.27
7.4.150.0140.01017.40
7.4.140.0150.00717.86
7.4.130.0100.01016.38
7.4.120.0090.00916.23
7.4.110.0060.01216.32
7.4.100.0180.00716.46
7.4.90.0090.00916.21
7.4.80.0080.01119.39
7.4.70.0090.00816.31
7.4.60.0090.00616.49
7.4.50.0030.00516.44
7.4.40.0100.00716.35
7.4.30.0140.00916.38
7.4.00.0090.00814.83
7.3.330.0030.00313.23
7.3.320.0050.00013.23
7.3.310.0030.00316.13
7.3.300.0030.00316.27
7.3.290.0030.00316.24
7.3.280.0060.01016.22
7.3.270.0090.00917.40
7.3.260.0120.00916.25
7.3.250.0110.01016.28
7.3.240.0130.00916.55
7.3.230.0070.01116.39
7.3.210.0110.00616.32
7.3.200.0130.00316.28
7.3.190.0080.00816.53
7.3.180.0030.01216.21
7.3.170.0080.00816.37
7.3.160.0110.00816.44
7.3.120.0060.01215.62
7.3.110.0080.00615.51
7.3.100.0060.01215.57
7.3.90.0080.00615.45
7.3.80.0030.00815.64
7.3.70.0030.00915.48
7.3.60.0090.00415.57
7.3.50.0070.00615.51
7.3.40.0060.00815.52
7.3.30.0020.01115.52
7.3.20.0100.00416.86
7.3.10.0060.00616.78
7.3.00.0080.00516.64
7.2.330.0130.00416.48
7.2.320.0110.01116.70
7.2.310.0060.01016.65
7.2.300.0070.01016.41
7.2.290.0030.01616.29
7.2.250.0060.00914.81
7.2.240.0080.00715.66
7.2.230.0090.00715.79
7.2.220.0050.01015.67
7.2.210.0080.00715.72
7.2.200.0070.00715.62
7.2.190.0070.00715.67
7.2.180.0050.00915.67
7.2.170.0050.00715.53
7.2.160.0090.00415.85
7.2.150.0040.00916.93
7.2.140.0050.00916.87
7.2.130.0060.01016.85
7.2.120.0080.01016.79
7.2.110.0060.00816.97
7.2.100.0070.01016.90
7.2.90.0050.01016.93
7.2.80.0120.00616.87
7.2.70.0110.01016.90
7.2.60.0080.00616.90
7.2.50.0090.01016.89
7.2.40.0110.00916.79
7.2.30.0140.00716.77
7.2.20.0110.00716.78
7.2.10.0120.01116.97
7.2.00.0070.00917.55
7.1.330.0070.00716.25
7.1.320.0050.00816.06
7.1.310.0030.01116.17
7.1.300.0040.01116.24
7.1.290.0070.00916.17
7.1.280.0060.00816.15
7.1.270.0070.00716.13
7.1.260.0070.00616.15
7.1.250.0090.00616.13
7.1.240.0090.00615.68
7.1.230.0060.00815.71
7.1.220.0070.00515.57
7.1.210.0040.00715.55
7.1.200.0120.00615.79
7.1.190.0020.01315.37
7.1.180.0160.00215.79
7.1.170.0100.00715.67
7.1.160.0120.00815.75
7.1.150.0130.00915.52
7.1.140.0090.00415.75
7.1.130.0050.01015.52
7.1.120.0120.00915.59
7.1.110.0180.00315.52
7.1.100.0080.00816.54
7.1.90.0130.00515.67
7.1.80.0070.00915.78
7.1.70.0080.00616.03
7.1.60.0080.01017.10
7.1.50.0120.00716.10
7.1.40.0090.00615.63
7.1.30.0080.00615.65
7.1.20.0070.00915.67
7.1.10.0160.00815.59
7.1.00.0130.03017.88
7.0.330.0030.00815.30
7.0.320.0050.00815.01
7.0.310.0160.00615.29
7.0.300.0110.00815.20
7.0.290.0150.00815.20
7.0.280.0060.00715.31
7.0.270.0150.00515.17
7.0.260.0160.00515.24
7.0.250.0110.00615.29
7.0.240.0110.00815.31
7.0.230.0150.00515.29
7.0.220.0110.00715.43
7.0.210.0110.00715.36
7.0.200.0060.00415.73
7.0.190.0080.00815.34
7.0.180.0090.00315.35
7.0.170.0020.01215.33
7.0.160.0080.00715.35
7.0.150.0140.00715.44
7.0.140.0160.01015.23
7.0.130.0070.00415.39
7.0.120.0060.00515.11
7.0.110.0100.00215.25
7.0.100.0160.00915.27
7.0.90.0100.02116.90
7.0.80.0090.03316.87
7.0.70.0230.01416.83
7.0.60.0200.01916.84
7.0.50.0140.02017.01
7.0.40.0090.02315.65
7.0.30.0140.01615.57
7.0.20.0120.01715.69
7.0.10.0120.01715.63
7.0.00.0080.01715.64
5.6.400.0070.00713.92
5.6.390.0070.00714.53
5.6.380.0020.00914.16
5.6.370.0110.01014.52
5.6.360.0090.00414.62
5.6.350.0090.00614.47
5.6.340.0050.00614.25
5.6.330.0050.01014.41
5.6.320.0070.00814.40
5.6.310.0070.00614.20
5.6.300.0120.00314.17
5.6.290.0050.01014.39
5.6.280.0070.02216.76
5.6.270.0070.00714.37
5.6.260.0080.00514.42
5.6.250.0050.00714.50
5.6.240.0090.01516.35
5.6.230.0050.01816.33
5.6.220.0090.01416.40
5.6.210.0030.02016.29
5.6.200.0120.01116.41
5.6.190.0100.01416.61
5.6.180.0110.01916.59
5.6.170.0060.01716.58
5.6.160.0130.02716.71
5.6.150.0060.01916.70
5.6.140.0070.01816.56
5.6.130.0070.02016.54
5.6.120.0110.03016.49
5.6.110.0090.02016.53
5.6.100.0090.03116.36
5.6.90.0080.02916.46
5.6.80.0120.02816.22
5.6.70.0080.02416.18
5.6.60.0060.03216.21
5.6.50.0090.02316.34
5.6.40.0050.02816.25
5.6.30.0040.02116.22
5.6.20.0090.02616.34
5.6.10.0080.02716.23
5.6.00.0090.02816.41
5.5.380.0060.01915.35
5.5.370.0020.02015.11
5.5.360.0070.02515.18
5.5.350.0040.02015.32
5.5.340.0060.02515.61
5.5.330.0030.01915.29
5.5.320.0050.01815.45
5.5.310.0090.01515.30
5.5.300.0030.03115.34
5.5.290.0070.01715.51
5.5.280.0070.01815.22
5.5.270.0070.02015.31
5.5.260.0100.02215.44
5.5.250.0060.02915.19
5.5.240.0040.02815.22
5.5.230.0070.02015.09
5.5.220.0040.02315.16
5.5.210.0050.03015.19
5.5.200.0030.02115.10
5.5.190.0030.01915.04
5.5.180.0080.02715.13
5.5.170.0090.00512.50
5.5.160.0070.02015.16
5.5.150.0050.03115.13
5.5.140.0100.02515.11
5.5.130.0060.02715.13
5.5.120.0110.02815.03
5.5.110.0070.01615.17
5.5.100.0090.03014.88
5.5.90.0030.02415.14
5.5.80.0090.02815.18
5.5.70.0100.02015.00
5.5.60.0060.01914.83
5.5.50.0080.02115.08
5.5.40.0070.03015.12
5.5.30.0060.02815.14
5.5.20.0060.02615.02
5.5.10.0040.01815.05
5.5.00.0040.02614.99
5.4.450.0040.01513.62
5.4.440.0030.03013.69
5.4.430.0070.01913.71
5.4.420.0080.01913.83
5.4.410.0040.02713.85
5.4.400.0040.02113.53
5.4.390.0010.03313.82
5.4.380.0050.01613.56
5.4.370.0030.02913.62
5.4.360.0010.01913.62
5.4.350.0080.01413.56
5.4.340.0070.02713.49
5.4.330.0040.00410.82
5.4.320.0070.02913.63
5.4.310.0100.01713.70
5.4.300.0020.02313.63
5.4.290.0050.02813.62
5.4.280.0070.02213.66
5.4.270.0040.01713.62
5.4.260.0020.03413.65
5.4.250.0080.02713.58
5.4.240.0070.02613.67
5.4.230.0090.01913.44
5.4.220.0090.02613.48
5.4.210.0090.01813.67
5.4.200.0070.02213.67
5.4.190.0050.01913.57
5.4.180.0060.02613.63
5.4.170.0120.01413.67
5.4.160.0110.01213.57
5.4.150.0100.02613.73
5.4.140.0060.01712.56
5.4.130.0140.02012.78
5.4.120.0100.01612.81
5.4.110.0070.02812.88
5.4.100.0080.02412.67
5.4.90.0050.02412.79
5.4.80.0100.01612.77
5.4.70.0090.01912.60
5.4.60.0050.02712.69
5.4.50.0060.02812.77
5.4.40.0110.02412.85
5.4.30.0050.01712.59
5.4.20.0090.02412.79
5.4.10.0060.02012.84
5.4.00.0070.02712.55
5.3.290.0030.04512.74
5.3.280.0060.03212.63
5.3.270.0040.04412.56
5.3.260.0040.02212.60
5.3.250.0110.03212.52
5.3.240.0040.03912.59
5.3.230.0100.03512.56
5.3.220.0080.02212.47
5.3.210.0120.03512.52
5.3.200.0090.04012.54
5.3.190.0080.02212.55
5.3.180.0100.02512.43
5.3.170.0100.03412.51
5.3.160.0060.02112.53
5.3.150.0050.02312.43
5.3.140.0090.02612.61
5.3.130.0140.03012.61
5.3.120.0110.02312.61
5.3.110.0060.03212.52
5.3.100.0080.02012.34
5.3.90.0070.03712.31
5.3.80.0030.03512.23
5.3.70.0120.03212.16
5.3.60.0060.02312.22
5.3.50.0080.03812.21
5.3.40.0100.03612.05
5.3.30.0090.02812.02
5.3.20.0070.03911.94
5.3.10.0180.03311.93
5.3.00.0050.02811.97
5.2.170.0100.03210.65
5.2.160.0090.03210.69
5.2.150.0070.02710.63
5.2.140.0040.02210.63
5.2.130.0110.02210.72
5.2.120.0030.03010.68
5.2.110.0070.02810.73
5.2.100.0060.03210.63
5.2.90.0090.02810.66
5.2.80.0040.02910.67
5.2.70.0090.02410.62
5.2.60.0060.03510.60
5.2.50.0110.01710.61
5.2.40.0060.03410.58
5.2.30.0020.03210.60
5.2.20.0130.01710.58
5.2.10.0070.02510.58
5.2.00.0110.02710.53
5.1.60.0140.01410.15
5.1.50.0030.03710.16
5.1.40.0020.02910.03
5.1.30.0090.01610.31
5.1.20.0080.02810.34
5.1.10.0100.02710.15
5.1.00.0030.02110.18
5.0.50.0010.0229.41
5.0.40.0060.0249.35
5.0.30.0030.0269.15
5.0.20.0110.0229.23
5.0.10.0060.0219.20
5.0.00.0060.0259.12
4.4.90.0020.0138.92
4.4.80.0040.0168.92
4.4.70.0030.0128.92
4.4.60.0050.0208.92
4.4.50.0080.0128.92
4.4.40.0040.0208.92
4.4.30.0060.0098.92
4.4.20.0050.0178.92
4.4.10.0080.0108.92
4.4.00.0030.0178.92
4.3.110.0040.0198.92
4.3.100.0040.0168.92
4.3.90.0020.0128.92
4.3.80.0030.0288.92
4.3.70.0020.0168.92
4.3.60.0020.0178.92
4.3.50.0060.0128.92
4.3.40.0040.0278.92
4.3.30.0030.0158.92
4.3.20.0020.0148.92
4.3.10.0050.0208.92
4.3.00.0020.0128.92

preferences:
58.54 ms | 401 KiB | 5 Q