3v4l.org

run code in 300+ PHP versions simultaneously
<?php $object = new stdClass(); $object->foo = 'bar'; $object->bar = [21, 42]; $json = json_encode($object); echo "var jsonString = ", json_encode($json), ';';

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)
8.3.60.0070.01018.05
8.3.50.0120.00722.12
8.3.40.0140.00718.88
8.3.30.0070.01119.09
8.3.20.0040.00420.34
8.3.10.0080.00021.82
8.3.00.0050.00319.38
8.2.180.0090.00616.50
8.2.170.0000.01518.83
8.2.160.0070.00722.96
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0040.00419.24
8.2.110.0060.00320.29
8.2.100.0070.00417.97
8.2.90.0040.00419.25
8.2.80.0000.00917.97
8.2.70.0030.00617.63
8.2.60.0030.00517.92
8.2.50.0080.00018.07
8.2.40.0080.00019.82
8.2.30.0020.00517.94
8.2.20.0030.00517.71
8.2.10.0000.00818.06
8.2.00.0000.00717.53
8.1.280.0110.00425.92
8.1.270.0030.00619.00
8.1.260.0030.00526.35
8.1.250.0080.00028.09
8.1.240.0000.00823.92
8.1.230.0070.00418.86
8.1.220.0000.00817.74
8.1.210.0090.00018.77
8.1.200.0000.00917.23
8.1.190.0000.00817.00
8.1.180.0030.00518.10
8.1.170.0080.00020.36
8.1.160.0050.00521.86
8.1.150.0040.00418.73
8.1.140.0040.00417.42
8.1.130.0030.00317.77
8.1.120.0040.00417.31
8.1.110.0000.00717.45
8.1.100.0000.00717.36
8.1.90.0070.00017.45
8.1.80.0040.00417.41
8.1.70.0070.00017.27
8.1.60.0030.00517.38
8.1.50.0040.00417.38
8.1.40.0000.00717.45
8.1.30.0000.00817.42
8.1.20.0030.00617.43
8.1.10.0080.00017.54
8.1.00.0060.00317.57
8.0.300.0040.00418.77
8.0.290.0050.00216.75
8.0.280.0000.00718.44
8.0.270.0030.00317.30
8.0.260.0000.00717.17
8.0.250.0000.00616.98
8.0.240.0000.00817.02
8.0.230.0030.00316.92
8.0.220.0000.00716.84
8.0.210.0000.00716.85
8.0.200.0030.00316.80
8.0.190.0070.00016.77
8.0.180.0040.00416.89
8.0.170.0040.00416.91
8.0.160.0050.00216.88
8.0.150.0040.00416.84
8.0.140.0040.00416.84
8.0.130.0090.00013.27
8.0.120.0000.00816.80
8.0.110.0060.00316.90
8.0.100.0040.00416.73
8.0.90.0070.00016.68
8.0.80.0090.00916.81
8.0.70.0040.00416.63
8.0.60.0070.00016.82
8.0.50.0070.00016.65
8.0.30.0090.01217.14
8.0.20.0130.00417.40
8.0.10.0080.00016.77
8.0.00.0070.01116.75
7.4.330.0040.00415.03
7.4.320.0000.00716.42
7.4.300.0000.00616.42
7.4.290.0030.00316.42
7.4.280.0040.00416.53
7.4.270.0030.00316.36
7.4.260.0000.00916.41
7.4.250.0020.00516.32
7.4.240.0030.00416.43
7.4.230.0030.00316.34
7.4.220.0090.00916.54
7.4.210.0130.00616.44
7.4.200.0000.00716.63
7.4.160.0030.01416.48
7.4.150.0130.01017.40
7.4.140.0120.00917.86
7.4.130.0110.00616.44
7.4.120.0030.01416.55
7.4.110.0110.00716.39
7.4.100.0090.00916.51
7.4.90.0130.00716.60
7.4.80.0090.01619.39
7.4.70.0120.00316.38
7.4.60.0130.00316.43
7.4.50.0050.00316.30
7.4.40.0090.00916.48
7.4.30.0060.01316.51
7.4.00.0070.00715.05
7.3.330.0000.00613.11
7.3.320.0130.00012.88
7.3.310.0030.00316.25
7.3.300.0040.00416.10
7.3.290.0060.00816.22
7.3.280.0100.00916.21
7.3.270.0130.00317.40
7.3.260.0130.01016.41
7.3.250.0210.00816.25
7.3.240.0180.00316.37
7.3.230.0150.00916.45
7.3.210.0060.01016.53
7.3.200.0120.00919.39
7.3.190.0040.01116.27
7.3.180.0090.00616.54
7.3.170.0170.00716.27
7.3.160.0000.01516.29
7.2.330.0180.00016.24
7.2.320.0090.00616.45
7.2.310.0100.00716.79
7.2.300.0140.00516.50
7.2.290.0100.01016.52
7.2.60.0090.00616.90
7.2.00.0040.00819.29
7.1.200.0100.00315.67
7.1.100.0030.01018.10
7.1.70.0000.00717.04
7.1.60.0070.01419.50
7.1.50.0270.01034.80
7.1.00.0000.08022.51
7.0.200.0230.00014.64
7.0.140.0070.07321.97
7.0.90.0230.06719.86
7.0.80.0330.06720.01
7.0.70.0130.03719.84
7.0.60.0200.03320.07
7.0.50.0670.07320.25
7.0.40.0100.08320.11
7.0.30.0130.07020.01
7.0.20.0030.09019.95
7.0.10.0130.07320.15
7.0.00.0030.04720.00
5.6.280.0100.06721.06
5.6.240.0070.04320.54
5.6.230.0100.03720.68
5.6.220.0030.04720.64
5.6.210.0070.07720.77
5.6.200.0170.06021.09
5.6.190.0070.08321.14
5.6.180.0100.04021.04
5.6.170.0070.05721.10
5.6.160.0000.06721.08
5.6.150.0030.09021.04
5.6.140.0200.06021.13
5.6.130.0100.07320.95
5.6.120.0130.07321.00
5.6.110.0100.08021.12
5.6.100.0070.04321.10
5.6.90.0100.07320.97
5.6.80.0070.04020.38
5.6.70.0070.05720.41
5.6.60.0000.04720.38
5.6.50.0030.03720.38
5.6.40.0030.04020.39
5.6.30.0130.03020.38
5.6.20.0000.04720.30
5.6.10.0030.09020.39
5.6.00.0000.06020.34
5.5.380.0030.04720.45
5.5.370.0030.04020.50
5.5.360.0070.04020.48
5.5.350.0100.03320.37
5.5.340.0030.06020.89
5.5.330.0100.07320.89
5.5.320.0100.04720.64
5.5.310.0170.04320.88
5.5.300.0070.08020.86
5.5.290.0030.07020.63
5.5.280.0170.08020.92
5.5.270.0200.07020.81
5.5.260.0070.05020.80
5.5.250.0100.08320.73
5.5.240.0030.04020.23
5.5.230.0100.04020.30
5.5.220.0030.04020.13
5.5.210.0030.04020.28
5.5.200.0070.07020.11
5.5.190.0000.04319.99
5.5.180.0030.06720.23
5.5.160.0070.07020.18
5.5.150.0030.04020.14
5.5.140.0030.04020.20
5.5.130.0070.04320.25
5.5.120.0070.03720.07
5.5.110.0030.04720.26
5.5.100.0000.04020.09
5.5.90.0000.05020.07
5.5.80.0030.03720.04
5.5.70.0000.07020.03
5.5.60.0000.04020.14
5.5.50.0070.07719.99
5.5.40.0070.06320.08
5.5.30.0030.05320.07
5.5.20.0030.04020.14
5.5.10.0130.03020.05
5.5.00.0030.06020.12
5.4.450.0270.03319.42
5.4.440.0000.05319.29
5.4.430.0070.07019.43
5.4.420.0030.08019.35
5.4.410.0070.08019.16
5.4.400.0030.07019.06
5.4.390.0100.03319.23
5.4.380.0030.04019.10
5.4.370.0030.03719.11
5.4.360.0030.04318.80
5.4.350.0030.04019.05
5.4.340.0030.07019.06
5.4.320.0030.03718.96
5.4.310.0030.03718.96
5.4.300.0030.03718.95
5.4.290.0070.03719.14
5.4.280.0030.06318.78
5.4.270.0000.06719.23
5.4.260.0130.02719.07
5.4.250.0030.03319.04
5.4.240.0130.02318.80
5.4.230.0030.06319.00
5.4.220.0000.04018.80
5.4.210.0030.03719.12
5.4.200.0000.04019.14
5.4.190.0170.02019.02
5.4.180.0030.03318.93
5.4.170.0030.04018.97
5.4.160.0000.03718.95
5.4.150.0070.03719.04
5.4.140.0070.03316.32
5.4.130.0070.04016.31
5.4.120.0070.03016.27
5.4.110.0030.03716.40
5.4.100.0070.03316.22
5.4.90.0070.03716.43
5.4.80.0070.04716.24
5.4.70.0070.05016.29
5.4.60.0170.05316.42
5.4.50.0070.06716.18
5.4.40.0170.06716.43
5.4.30.0030.06016.21
5.4.20.0070.06316.23
5.4.10.0000.04716.28
5.4.00.0070.03715.46
5.3.290.0030.06014.63
5.3.280.0000.04014.57
5.3.270.0000.04014.46
5.3.260.0000.04014.57
5.3.250.0070.03714.46
5.3.240.0000.04714.61
5.3.230.0070.05314.51
5.3.220.0030.03714.52
5.3.210.0130.03714.48
5.3.200.0070.03314.41
5.3.190.0000.03714.51
5.3.180.0100.06714.43
5.3.170.0100.06314.57
5.3.160.0030.08014.43
5.3.150.0070.06714.52
5.3.140.0130.06714.57
5.3.130.0130.06014.46
5.3.120.0100.07714.54
5.3.110.0130.06314.51
5.3.100.0070.06714.04
5.3.90.0070.07313.99
5.3.80.0130.04713.98
5.3.70.0200.05314.01
5.3.60.0070.07014.00
5.3.50.0070.04013.85
5.3.40.0100.07313.95
5.3.30.0000.04713.89
5.3.20.0030.06013.65
5.3.10.0100.05013.64
5.3.00.0070.04713.61
5.2.170.0030.06711.10
5.2.160.0070.05010.93
5.2.150.0070.05311.14
5.2.140.0030.06011.16
5.2.130.0030.05011.14
5.2.120.0100.02711.12
5.2.110.0100.05711.17
5.2.100.0000.05010.93
5.2.90.0000.03711.16
5.2.80.0070.04711.05
5.2.70.0000.06011.02
5.2.60.0030.05310.91
5.2.50.0030.06010.94
5.2.40.0070.05711.02
5.2.30.0130.05311.01
5.2.20.0000.06311.00
5.2.10.0130.05010.88
5.2.00.0000.06010.72
5.1.60.0100.04710.02
5.1.50.0070.04710.04
5.1.40.0030.05310.02
5.1.30.0100.05010.39
5.1.20.0130.04710.29
5.1.10.0070.04010.11
5.1.00.0030.05010.13
5.0.50.0030.0439.64
5.0.40.0000.0339.64
5.0.30.0030.0579.64
5.0.20.0030.0339.64
5.0.10.0130.0379.64
5.0.00.0030.0609.64
4.4.90.0070.0309.64
4.4.80.0030.0309.64
4.4.70.0030.0379.64
4.4.60.0030.0379.64
4.4.50.0130.0309.64
4.4.40.0030.0509.64
4.4.30.0000.0379.64
4.4.20.0000.0279.64
4.4.10.0000.0279.64
4.4.00.0030.0339.64
4.3.110.0030.0339.64
4.3.100.0070.0339.64
4.3.90.0030.0339.64
4.3.80.0000.0409.64
4.3.70.0000.0379.64
4.3.60.0070.0239.64
4.3.50.0100.0109.64
4.3.40.0030.0509.64
4.3.30.0030.0339.64
4.3.20.0000.0409.64
4.3.10.0000.0339.64
4.3.00.0030.0239.64

preferences:
54.7 ms | 401 KiB | 5 Q