3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array( 'a' => null, 'b' => "null", 'c' => 123, 'd' => "123", 'e' => array( 1 => null, 2 => 123 ) ); echo json_encode($a);

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)
8.3.60.0110.01118.43
8.3.50.0090.01221.99
8.3.40.0080.00818.54
8.3.30.0080.00618.78
8.3.20.0040.00420.07
8.3.10.0040.00421.96
8.3.00.0040.00422.46
8.2.180.0070.00716.63
8.2.170.0030.01718.96
8.2.160.0070.00722.96
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0080.00019.23
8.2.110.0060.00320.47
8.2.100.0030.00917.91
8.2.90.0040.00418.13
8.2.80.0030.00519.54
8.2.70.0060.00317.48
8.2.60.0050.00317.93
8.2.50.0000.00718.07
8.2.40.0000.00817.91
8.2.30.0070.00018.13
8.2.20.0000.00717.60
8.2.10.0000.00717.59
8.2.00.0060.00317.48
8.1.280.0040.01125.92
8.1.270.0050.00221.96
8.1.260.0040.00426.35
8.1.250.0030.00528.09
8.1.240.0040.00422.14
8.1.230.0030.00720.89
8.1.220.0060.00317.74
8.1.210.0000.00918.77
8.1.200.0070.00317.13
8.1.190.0040.00417.50
8.1.180.0050.00318.10
8.1.170.0060.00318.53
8.1.160.0050.00221.95
8.1.150.0070.00018.53
8.1.140.0000.00717.36
8.1.130.0030.00317.81
8.1.120.0000.00717.29
8.1.110.0000.00817.32
8.1.100.0040.00417.41
8.1.90.0080.00017.38
8.1.80.0040.00417.38
8.1.70.0040.00417.33
8.1.60.0030.00617.55
8.1.50.0050.00317.41
8.1.40.0030.00517.43
8.1.30.0040.00417.59
8.1.20.0040.00417.50
8.1.10.0000.00817.41
8.1.00.0080.00017.42
8.0.300.0000.00720.10
8.0.290.0040.00417.04
8.0.280.0030.00318.34
8.0.270.0000.00717.22
8.0.260.0030.00316.82
8.0.250.0040.00416.84
8.0.240.0030.00316.83
8.0.230.0030.00316.74
8.0.220.0070.00016.71
8.0.210.0000.00716.80
8.0.200.0030.00316.89
8.0.190.0000.00816.87
8.0.180.0030.00516.75
8.0.170.0000.00716.87
8.0.160.0050.00216.79
8.0.150.0000.00716.82
8.0.140.0000.00716.68
8.0.130.0000.00513.23
8.0.120.0030.00616.86
8.0.110.0030.00516.88
8.0.100.0070.00016.75
8.0.90.0050.00316.77
8.0.80.0070.00716.70
8.0.70.0080.00016.84
8.0.60.0000.00716.68
8.0.50.0050.00316.76
8.0.30.0100.00817.19
8.0.20.0120.00617.40
8.0.10.0040.00417.05
8.0.00.0070.01016.57
7.4.330.0050.00015.09
7.4.320.0030.00316.28
7.4.300.0060.00016.56
7.4.290.0000.00916.41
7.4.280.0060.00016.52
7.4.270.0000.00716.38
7.4.260.0000.00616.40
7.4.250.0000.00716.51
7.4.240.0040.00416.49
7.4.230.0030.00316.63
7.4.220.0070.01116.46
7.4.210.0050.00916.45
7.4.200.0070.00016.26
7.4.190.0000.00816.41
7.4.160.0000.01616.28
7.4.150.0080.00917.40
7.4.140.0090.01117.86
7.4.130.0090.00816.43
7.4.120.0060.01516.49
7.4.110.0070.01416.44
7.4.100.0130.00316.40
7.4.90.0130.00316.64
7.4.80.0110.01119.39
7.4.70.0100.01016.56
7.4.60.0090.00616.35
7.4.50.0040.00416.30
7.4.40.0110.00722.77
7.4.30.0100.00716.40
7.4.00.0030.00914.61
7.3.330.0050.00012.97
7.3.320.0050.00012.99
7.3.310.0030.00516.09
7.3.300.0030.00316.13
7.3.290.0140.00316.23
7.3.280.0050.01116.12
7.3.270.0100.00617.40
7.3.260.0170.00016.23
7.3.250.0070.00916.13
7.3.240.0130.00316.07
7.3.230.0120.01216.39
7.3.210.0220.03616.16
7.3.200.0210.00019.39
7.3.190.0070.01016.36
7.3.180.0090.00616.40
7.3.170.0030.01216.27
7.3.160.0030.01316.35
7.3.120.0000.01514.91
7.2.330.0060.01116.61
7.2.320.0130.01016.47
7.2.310.0040.01316.34
7.2.300.0150.00516.20
7.2.290.0130.01016.48
7.2.60.0110.00416.51
7.2.50.0100.00316.86
7.1.200.0060.00615.59
7.1.70.0000.00816.95
7.1.60.0130.01019.82
7.1.50.0140.00716.73
7.1.00.0070.07322.44
7.0.200.0030.00516.81
7.0.140.0070.07022.21
7.0.90.0330.03719.97
7.0.80.0200.06719.86
7.0.70.0270.04319.90
7.0.60.0170.08720.01
7.0.50.0100.05320.25
7.0.40.0100.08719.95
7.0.30.0000.06320.13
7.0.20.0100.08020.13
7.0.10.0070.04720.11
7.0.00.0130.06320.13
5.6.280.0100.06721.09
5.6.240.0130.04720.57
5.6.230.0000.08020.69
5.6.220.0070.07720.64
5.6.210.0070.04020.55
5.6.200.0100.07721.07
5.6.190.0030.08321.04
5.6.180.0100.08021.08
5.6.170.0030.08321.01
5.6.160.0030.07320.93
5.6.150.0030.08721.02
5.6.140.0030.04321.10
5.6.130.0100.04721.12
5.6.120.0000.07720.97
5.6.110.0130.04721.00
5.6.100.0100.06320.91
5.6.90.0100.05721.07
5.6.80.0130.04020.33
5.6.70.0070.06720.39
5.6.60.0100.07720.41
5.6.50.0030.05020.41
5.6.40.0230.06720.39
5.6.30.0030.04320.30
5.6.20.0070.08020.42
5.6.10.0100.04320.46
5.6.00.0030.07720.27
5.5.380.0070.09720.34
5.5.370.0070.05020.56
5.5.360.0130.07320.52
5.5.350.0100.07720.45
5.5.340.0070.08020.92
5.5.330.0130.04720.82
5.5.320.0030.04720.91
5.5.310.0070.07320.90
5.5.300.0030.08020.82
5.5.290.0030.04320.86
5.5.280.0070.07720.86
5.5.270.0200.04320.77
5.5.260.0030.08720.78
5.5.250.0070.04020.63
5.5.240.0070.05720.16
5.5.230.0000.05720.25
5.5.220.0100.07020.16
5.5.210.0100.05720.25
5.5.200.0070.05719.99
5.5.190.0100.07020.15
5.5.180.0070.04019.98
5.5.160.0100.04720.24
5.5.150.0130.04720.13
5.5.140.0200.06320.18
5.5.130.0100.07720.20
5.5.120.0030.08020.22
5.5.110.0070.04320.22
5.5.100.0030.04020.15
5.5.90.0130.04719.94
5.5.80.0130.06720.16
5.5.70.0130.04020.05
5.5.60.0100.07720.05
5.5.50.0130.07320.14
5.5.40.0130.07019.98
5.5.30.0130.03320.12
5.5.20.0130.05320.03
5.5.10.0030.04320.13
5.5.00.0200.06720.01
5.4.450.0070.07719.36
5.4.440.0030.04319.47
5.4.430.0130.05719.34
5.4.420.0100.04319.38
5.4.410.0100.06719.42
5.4.400.0070.03718.98
5.4.390.0130.06319.07
5.4.380.0030.08019.03
5.4.370.0070.07719.14
5.4.360.0100.07719.07
5.4.350.0170.06719.06
5.4.340.0070.04019.11
5.4.320.0130.03719.07
5.4.310.0100.03319.11
5.4.300.0070.07719.02
5.4.290.0130.03719.03
5.4.280.0130.07018.78
5.4.270.0130.04319.09
5.4.260.0070.04019.02
5.4.250.0200.06319.14
5.4.240.0200.05318.77
5.4.230.0030.06319.03
5.4.220.0100.06319.14
5.4.210.0100.07319.04
5.4.200.0000.08318.91
5.4.190.0070.05719.11
5.4.180.0000.06018.93
5.4.170.0100.04018.93
5.4.160.0070.07018.92
5.4.150.0030.08018.92
5.4.140.0130.03716.29
5.4.130.0130.06716.22
5.4.120.0030.03716.30
5.4.110.0070.03716.38
5.4.100.0030.04016.25
5.4.90.0070.04316.30
5.4.80.0070.04016.21
5.4.70.0100.05016.29
5.4.60.0030.06316.36
5.4.50.0000.04316.30
5.4.40.0030.04016.51
5.4.30.0070.03716.18
5.4.20.0030.07316.41
5.4.10.0100.08016.30
5.4.00.0170.06715.87
5.3.290.0130.06014.50
5.3.280.0000.05014.58
5.3.270.0100.04014.60
5.3.260.0070.04014.41
5.3.250.0070.04314.59
5.3.240.0100.07314.57
5.3.230.0030.05014.60
5.3.220.0100.03714.47
5.3.210.0070.07014.54
5.3.200.0000.04714.54
5.3.190.0100.07014.52
5.3.180.0100.06314.47
5.3.170.0170.06714.54
5.3.160.0070.07014.54
5.3.150.0000.04714.55
5.3.140.0100.04714.50
5.3.130.0130.05314.55
5.3.120.0070.06014.36
5.3.110.0070.04314.49
5.3.100.0200.05314.02
5.3.90.0100.04313.99
5.3.80.0000.08013.95
5.3.70.0030.06313.78
5.3.60.0070.06013.99
5.3.50.0070.04013.93
5.3.40.0070.07713.93
5.3.30.0030.07313.86
5.3.20.0100.03013.70
5.3.10.0070.03013.61
5.3.00.0030.05713.59
5.2.170.0070.03310.96
5.2.160.0230.04311.09
5.2.150.0100.05311.06
5.2.140.0100.03011.00
5.2.130.0070.05711.15
5.2.120.0070.05011.08
5.2.110.0000.03011.15
5.2.100.0070.05011.15
5.2.90.0030.02711.06
5.2.80.0100.05311.13
5.2.70.0100.03711.02
5.2.60.0030.05011.10
5.2.50.0000.03710.99
5.2.40.0000.04311.04
5.2.30.0030.05010.96
5.2.20.0030.05310.82
5.2.10.0070.03710.91
5.2.00.0000.05010.73
5.1.60.0070.0379.98
5.1.50.0070.02310.05
5.1.40.0000.0509.97
5.1.30.0070.05710.26
5.1.20.0030.03010.36
5.1.10.0000.04710.14
5.1.00.0070.05010.09
5.0.50.0030.0208.52
5.0.40.0070.0408.44
5.0.30.0070.0308.11
5.0.20.0000.0478.18
5.0.10.0000.0238.15
5.0.00.0030.0678.23
4.4.90.0030.0237.15
4.4.80.0000.0307.15
4.4.70.0100.0237.15
4.4.60.0030.0177.15
4.4.50.0070.0307.15
4.4.40.0000.0337.15
4.4.30.0030.0277.15
4.4.20.0030.0337.15
4.4.10.0000.0177.15
4.4.00.0000.0577.15
4.3.110.0070.0207.15
4.3.100.0100.0277.15
4.3.90.0070.0277.15
4.3.80.0000.0407.15
4.3.70.0030.0207.15
4.3.60.0030.0277.15
4.3.50.0030.0177.15
4.3.40.0000.0437.15
4.3.30.0030.0307.15
4.3.20.0030.0277.15
4.3.10.0000.0337.15
4.3.00.0000.0337.15

preferences:
43.94 ms | 401 KiB | 5 Q