3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(json_encode(array('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)
8.3.40.0110.00318.39
8.3.30.0100.00319.02
8.3.20.0040.00420.07
8.3.10.0060.00320.36
8.3.00.0060.00319.33
8.2.170.0040.01122.96
8.2.160.0090.00918.66
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0030.00526.16
8.2.120.0000.00721.96
8.2.110.0040.00720.51
8.2.100.0080.00417.72
8.2.90.0000.00819.14
8.2.80.0040.00417.97
8.2.70.0050.00317.49
8.2.60.0040.00417.80
8.2.50.0060.00318.07
8.2.40.0040.00418.08
8.2.30.0030.00519.18
8.2.20.0000.00817.43
8.2.10.0090.00017.84
8.2.00.0040.00417.64
8.1.270.0060.00322.23
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0050.00322.18
8.1.230.0100.00317.42
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0030.00716.98
8.1.190.0050.00317.10
8.1.180.0000.00718.10
8.1.170.0040.00418.54
8.1.160.0070.00021.81
8.1.150.0000.00718.75
8.1.140.0000.00717.23
8.1.130.0070.00017.73
8.1.120.0000.00817.34
8.1.110.0000.00717.33
8.1.100.0000.00817.21
8.1.90.0000.00717.30
8.1.80.0030.00317.30
8.1.70.0030.00317.26
8.1.60.0050.00317.34
8.1.50.0000.00817.27
8.1.40.0040.00417.27
8.1.30.0080.00017.41
8.1.20.0000.00717.48
8.1.10.0040.00417.25
8.1.00.0040.00417.18
8.0.300.0050.00218.77
8.0.290.0000.00716.58
8.0.280.0000.00718.30
8.0.270.0070.00017.12
8.0.260.0000.00717.02
8.0.250.0030.00316.83
8.0.240.0070.00016.71
8.0.230.0070.00016.68
8.0.220.0000.00716.70
8.0.210.0040.00416.74
8.0.200.0080.00016.85
8.0.190.0030.00616.82
8.0.180.0000.00716.66
8.0.170.0040.00416.80
8.0.160.0030.00316.82
8.0.150.0000.00716.68
8.0.140.0030.00516.63
8.0.130.0050.00013.14
8.0.120.0040.00416.76
8.0.110.0000.00716.64
8.0.100.0000.00716.55
8.0.90.0030.00616.71
8.0.80.0030.01216.81
8.0.70.0040.00416.63
8.0.60.0000.00816.80
8.0.50.0030.00516.58
8.0.30.0100.01317.07
8.0.20.0140.00817.40
8.0.10.0040.00416.70
8.0.00.0080.00916.61
7.4.330.0050.00015.00
7.4.320.0000.00616.45
7.4.300.0060.00016.44
7.4.290.0000.00716.29
7.4.280.0000.00816.43
7.4.270.0020.00516.37
7.4.260.0030.00316.36
7.4.250.0080.00016.40
7.4.240.0040.00316.45
7.4.230.0040.00416.22
7.4.220.0090.00916.43
7.4.210.0060.01216.48
7.4.200.0030.00516.34
7.4.160.0130.00316.21
7.4.150.0120.00617.40
7.4.140.0110.01017.86
7.4.130.0110.00516.33
7.4.120.0080.00916.32
7.4.110.0060.01016.27
7.4.100.0120.00816.24
7.4.90.0100.01416.29
7.4.80.0100.00716.43
7.4.70.0060.01016.44
7.4.60.0040.01516.39
7.4.50.0030.00616.23
7.4.40.0030.01416.37
7.4.30.0080.00816.45
7.4.00.0030.01314.98
7.3.330.0000.00513.00
7.3.320.0060.00012.97
7.3.310.0030.00315.96
7.3.300.0070.00016.11
7.3.290.0030.01016.13
7.3.280.0080.00716.15
7.3.270.0100.00717.40
7.3.260.0090.01516.09
7.3.250.0110.00816.28
7.3.240.0160.00016.09
7.3.230.0100.00716.39
7.3.210.0080.01116.21
7.3.200.0140.00419.39
7.3.190.0070.01316.16
7.3.180.0100.00716.38
7.3.170.0060.00916.41
7.3.160.0040.01216.34
7.2.330.0150.00316.38
7.2.320.0050.01316.15
7.2.310.0060.00916.30
7.2.300.0100.00616.43
7.2.290.0090.01216.24
7.2.60.0070.01016.71
7.2.00.0150.01018.81
7.1.200.0030.00815.36
7.1.100.0060.00317.54
7.1.70.0030.00517.08
7.1.60.0130.01319.32
7.1.50.0200.01734.77
7.1.00.0000.08022.48
7.0.200.0040.00416.27
7.0.140.0030.07321.95
7.0.90.0500.08719.88
7.0.80.0600.06020.14
7.0.70.0630.06719.91
7.0.60.0470.04319.95
7.0.50.0570.05020.29
7.0.40.0070.04020.14
7.0.30.0030.08720.00
7.0.20.0000.04020.10
7.0.10.0070.06320.12
7.0.00.0030.04320.07
5.6.280.0000.07721.09
5.6.230.0030.04720.62
5.6.220.0200.07320.57
5.6.210.0070.07720.55
5.6.200.0030.08721.08
5.6.190.0070.04021.10
5.6.180.0030.03721.05
5.6.170.0000.04021.08
5.6.160.0030.04721.14
5.6.150.0070.04021.01
5.6.140.0030.04021.01
5.6.130.0030.04021.12
5.6.120.0030.04020.93
5.6.110.0000.04021.00
5.6.100.0030.04320.94
5.6.90.0000.04020.97
5.6.80.0070.05720.49
5.6.70.0070.05720.37
5.6.60.0070.03020.36
5.6.50.0070.03720.52
5.6.40.0070.04720.36
5.6.30.0000.05020.43
5.6.20.0070.03020.38
5.6.10.0070.04320.52
5.6.00.0070.03720.27
5.5.370.0000.05320.51
5.5.360.0070.07720.52
5.5.350.0030.04720.38
5.5.340.0070.04720.75
5.5.330.0130.07320.73
5.5.320.0030.06320.75
5.5.310.0000.04020.78
5.5.300.0070.04320.88
5.5.290.0070.04020.90
5.5.280.0030.04020.86
5.5.270.0070.04020.87
5.5.260.0000.04720.78
5.5.250.0030.03720.56
5.5.240.0070.04320.14
5.5.230.0030.03720.15
5.5.220.0030.04020.16
5.5.210.0030.04020.25
5.5.200.0070.07320.21
5.5.190.0070.04720.24
5.5.180.0130.05320.27
5.5.160.0000.03720.09
5.5.150.0030.07320.27
5.5.140.0100.03720.26
5.5.130.0070.04020.24
5.5.120.0030.03720.11
5.5.110.0070.06020.20
5.5.100.0000.04320.07
5.5.90.0030.04020.05
5.5.80.0000.03720.06
5.5.70.0030.06320.05
5.5.60.0030.05020.05
5.5.50.0100.07720.09
5.5.40.0070.05720.04
5.5.30.0030.08020.14
5.5.20.0070.04020.07
5.5.10.0100.07020.05
5.5.00.0100.07720.07
5.4.450.0100.03319.27
5.4.440.0000.04319.44
5.4.430.0030.06019.38
5.4.420.0030.06019.29
5.4.410.0030.08319.32
5.4.400.0030.03719.06
5.4.390.0030.04019.20
5.4.380.0070.03019.11
5.4.370.0070.04319.12
5.4.360.0030.03719.05
5.4.350.0000.04019.03
5.4.340.0070.03718.90
5.4.320.0000.04318.96
5.4.310.0030.04019.17
5.4.300.0000.05019.09
5.4.290.0000.04018.96
5.4.280.0100.03319.06
5.4.270.0070.04019.09
5.4.260.0070.04019.11
5.4.250.0000.04319.09
5.4.240.0100.02718.91
5.4.230.0000.03719.09
5.4.220.0000.04018.92
5.4.210.0030.03719.09
5.4.200.0130.07019.11
5.4.190.0030.05718.77
5.4.180.0100.07319.01
5.4.170.0100.05719.05
5.4.160.0100.07019.08
5.4.150.0070.05718.94
5.4.140.0070.04316.08
5.4.130.0070.04716.30
5.4.120.0030.07016.31
5.4.110.0100.07316.38
5.4.100.0100.07016.22
5.4.90.0030.08016.26
5.4.80.0070.04016.36
5.4.70.0200.06016.29
5.4.60.0100.05316.18
5.4.50.0030.03716.28
5.4.40.0030.07316.23
5.4.30.0030.04716.20
5.4.20.0070.07016.37
5.4.10.0070.04716.32
5.4.00.0000.04015.66
5.3.290.0070.03014.54
5.3.280.0070.03314.45
5.3.270.0030.08014.55
5.3.260.0070.07714.54
5.3.250.0030.07714.60
5.3.240.0130.06014.57
5.3.230.0100.03314.60
5.3.220.0070.07014.41
5.3.210.0070.05714.54
5.3.200.0100.06014.41
5.3.190.0030.05014.40
5.3.180.0030.04714.41
5.3.170.0100.06714.41
5.3.160.0070.07714.41
5.3.150.0030.05714.41
5.3.140.0070.07014.54
5.3.130.0070.07714.42
5.3.120.0070.08314.41
5.3.110.0100.07014.40
5.3.100.0000.04713.96
5.3.90.0030.05014.00
5.3.80.0070.07314.00
5.3.70.0130.06713.87
5.3.60.0170.04714.00
5.3.50.0070.07313.91
5.3.40.0030.05313.95
5.3.30.0030.07013.76
5.3.20.0100.05313.59
5.3.10.0030.05013.63
5.3.00.0070.06313.39
5.2.170.0100.04711.00
5.2.160.0070.06011.16
5.2.150.0070.06711.13
5.2.140.0100.06010.95
5.2.130.0030.06311.14
5.2.120.0070.03311.09
5.2.110.0030.04311.11
5.2.100.0000.04711.13
5.2.90.0130.03311.02
5.2.80.0070.03710.88
5.2.70.0000.06011.14
5.2.60.0030.06310.96
5.2.50.0130.06010.88
5.2.40.0070.06010.86
5.2.30.0030.05710.97
5.2.20.0030.05710.79
5.2.10.0100.03710.78
5.2.00.0100.05710.73
5.1.60.0070.03710.70
5.1.50.0070.05010.70
5.1.40.0030.04010.70
5.1.30.0100.05710.70
5.1.20.0100.04710.70
5.1.10.0070.04310.70
5.1.00.0100.04310.70
5.0.50.0070.03710.70
5.0.40.0000.04710.70
5.0.30.0070.06010.70
5.0.20.0000.04010.70
5.0.10.0030.04010.70
5.0.00.0070.06010.70
4.4.90.0030.03010.70
4.4.80.0000.02310.70
4.4.70.0000.03310.70
4.4.60.0030.03310.70
4.4.50.0030.02710.70
4.4.40.0000.05010.70
4.4.30.0030.02710.70
4.4.20.0030.02710.70
4.4.10.0000.02710.70
4.4.00.0000.05010.70
4.3.110.0000.02710.70
4.3.100.0000.03710.70
4.3.90.0030.03010.70
4.3.80.0000.05710.70
4.3.70.0000.03710.70
4.3.60.0000.03710.70
4.3.50.0000.03010.70
4.3.40.0000.04310.70
4.3.30.0030.03310.70
4.3.20.0030.02310.70
4.3.10.0000.03310.70
4.3.00.0000.02710.70

preferences:
38.46 ms | 400 KiB | 5 Q