3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('franz' => 'de leon'); var_dump(json_encode($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)
8.3.60.0100.01016.23
8.3.50.0110.01117.17
8.3.40.0150.00018.55
8.3.30.0150.00618.52
8.3.20.0040.00418.52
8.3.10.0080.00020.48
8.3.00.0060.00319.25
8.2.180.0000.01416.50
8.2.170.0070.01122.96
8.2.160.0070.00720.92
8.2.150.0050.00324.18
8.2.140.0030.00524.66
8.2.130.0080.00026.16
8.2.120.0060.00318.85
8.2.110.0100.00020.81
8.2.100.0080.00417.59
8.2.90.0060.00319.05
8.2.80.0040.00417.93
8.2.70.0030.00717.25
8.2.60.0030.00518.04
8.2.50.0030.00518.07
8.2.40.0000.00717.78
8.2.30.0030.00617.99
8.2.20.0070.00017.48
8.2.10.0050.00317.68
8.2.00.0000.00717.50
8.1.280.0070.01125.92
8.1.270.0070.00024.66
8.1.260.0000.00826.35
8.1.250.0080.00828.09
8.1.240.0090.00022.37
8.1.230.0090.00320.88
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0040.00417.13
8.1.190.0000.00917.40
8.1.180.0040.00418.10
8.1.170.0000.00718.83
8.1.160.0000.00718.70
8.1.150.0050.00318.52
8.1.140.0040.00417.38
8.1.130.0040.00417.87
8.1.120.0040.00417.39
8.1.110.0050.00317.38
8.1.100.0040.00417.23
8.1.90.0000.00717.36
8.1.80.0070.00017.29
8.1.70.0070.00017.33
8.1.60.0040.00417.43
8.1.50.0080.00017.31
8.1.40.0050.00217.39
8.1.30.0000.00917.56
8.1.20.0030.00517.53
8.1.10.0000.00717.40
8.1.00.0000.00717.33
8.0.300.0000.00719.89
8.0.290.0050.00216.75
8.0.280.0030.00318.36
8.0.270.0030.00317.18
8.0.260.0060.00016.65
8.0.250.0070.00016.89
8.0.240.0040.00416.81
8.0.230.0070.00016.84
8.0.220.0030.00316.80
8.0.210.0060.00316.70
8.0.200.0030.00316.89
8.0.190.0000.00716.94
8.0.180.0000.00816.84
8.0.170.0040.00416.84
8.0.160.0000.00716.73
8.0.150.0060.00316.84
8.0.140.0000.00816.79
8.0.130.0030.00313.19
8.0.120.0040.00416.78
8.0.110.0030.00316.83
8.0.100.0000.00816.83
8.0.90.0070.00016.76
8.0.80.0060.00916.84
8.0.70.0040.00416.87
8.0.60.0000.00816.86
8.0.50.0050.00216.70
8.0.30.0130.01017.05
8.0.20.0090.00816.84
8.0.10.0050.00316.80
8.0.00.0030.01716.78
7.4.330.0000.00512.98
7.4.320.0000.00616.43
7.4.300.0030.00316.56
7.4.290.0030.00316.33
7.4.280.0050.00316.53
7.4.270.0040.00416.54
7.4.260.0000.00513.31
7.4.250.0050.00316.28
7.4.240.0050.00216.32
7.4.230.0000.00716.24
7.4.220.0100.01016.38
7.4.210.0070.00916.49
7.4.200.0030.00316.42
7.4.190.0050.00216.52
7.4.160.0100.00616.23
7.4.150.0140.00516.43
7.4.140.0070.01116.38
7.4.130.0110.01016.34
7.4.120.0100.00716.33
7.4.110.0030.01316.41
7.4.100.0160.00316.23
7.4.90.0030.01416.48
7.4.80.0100.01319.39
7.4.70.0130.01016.31
7.4.60.0090.00916.54
7.4.50.0040.00816.28
7.4.40.0110.00416.20
7.4.30.0100.00616.32
7.4.00.0000.01415.04
7.3.330.0030.00313.04
7.3.320.0000.00513.02
7.3.310.0030.00316.06
7.3.300.0040.00416.03
7.3.290.0080.00616.08
7.3.280.0080.00816.09
7.3.270.0090.00916.43
7.3.260.0100.01016.49
7.3.250.0120.00916.32
7.3.240.0090.00616.18
7.3.230.0070.01516.16
7.3.210.0060.00916.02
7.3.200.0070.01116.25
7.3.190.0130.00316.42
7.3.180.0090.00616.30
7.3.170.0090.00616.23
7.3.160.0070.01116.18
7.3.120.0130.00314.56
7.2.330.0100.00716.40
7.2.320.0160.00016.46
7.2.310.0070.01116.48
7.2.300.0100.00716.63
7.2.290.0060.00916.17
7.2.00.0100.00319.32
7.1.100.0060.00318.24
7.1.70.0040.00816.83
7.1.60.0070.01719.40
7.1.50.0070.01016.91
7.1.00.0030.04722.40
7.0.200.0760.00314.68
7.0.140.0030.07322.01
7.0.120.0070.07022.03
7.0.90.0370.07319.89
7.0.80.0370.05319.90
7.0.70.0070.08719.88
7.0.60.0130.05019.95
7.0.50.0230.05720.26
7.0.40.0100.08320.10
7.0.30.0100.07020.11
7.0.20.0170.08020.17
7.0.10.0070.06019.94
7.0.00.0030.06020.00
5.6.280.0070.07021.00
5.6.240.0130.04720.63
5.6.230.0070.08320.53
5.6.220.0030.08320.67
5.6.210.0070.07320.56
5.6.200.0130.09021.13
5.6.190.0170.07321.07
5.6.180.0170.07321.00
5.6.170.0170.08021.10
5.6.160.0100.08021.01
5.6.150.0170.07320.94
5.6.140.0130.03321.16
5.6.130.0130.07720.95
5.6.120.0030.08720.99
5.6.110.0030.06721.09
5.6.100.0070.08721.09
5.6.90.0070.08320.92
5.6.80.0070.07020.39
5.6.70.0030.06320.33
5.6.60.0070.05720.50
5.6.50.0230.07020.40
5.6.40.0070.04720.38
5.6.30.0070.05020.35
5.6.20.0070.08020.45
5.6.10.0170.07720.36
5.6.00.0130.04320.36
5.5.380.0130.03720.41
5.5.370.0030.04720.50
5.5.360.0030.08720.34
5.5.350.0030.08020.41
5.5.340.0100.03720.86
5.5.330.0100.07020.73
5.5.320.0170.07320.87
5.5.310.0130.08020.85
5.5.300.0130.07720.82
5.5.290.0170.06320.63
5.5.280.0070.07720.89
5.5.270.0100.04720.87
5.5.260.0130.06720.85
5.5.250.0070.06720.69
5.5.240.0030.05020.27
5.5.230.0070.04720.29
5.5.220.0070.07320.25
5.5.210.0000.05720.10
5.5.200.0130.08720.25
5.5.190.0100.05720.11
5.5.180.0070.07720.24
5.5.160.0070.08320.07
5.5.150.0100.03720.11
5.5.140.0030.04320.07
5.5.130.0100.07020.14
5.5.120.0100.04720.10
5.5.110.0230.05020.16
5.5.100.0130.07320.07
5.5.90.0170.06019.94
5.5.80.0100.07320.02
5.5.70.0030.06720.05
5.5.60.0030.06320.04
5.5.50.0070.07720.10
5.5.40.0100.05720.07
5.5.30.0130.06720.07
5.5.20.0100.06720.07
5.5.10.0070.06020.03
5.5.00.0100.04020.02
5.4.450.0130.07319.39
5.4.440.0030.05319.55
5.4.430.0030.08319.32
5.4.420.0130.04719.27
5.4.410.0170.06719.16
5.4.400.0030.06019.03
5.4.390.0170.06719.13
5.4.380.0130.03019.14
5.4.370.0070.07718.82
5.4.360.0030.06019.10
5.4.350.0130.07319.05
5.4.340.0100.07319.22
5.4.320.0070.07319.03
5.4.310.0130.07718.96
5.4.300.0100.07318.96
5.4.290.0030.07718.83
5.4.280.0070.08018.78
5.4.270.0030.04719.14
5.4.260.0100.07018.78
5.4.250.0100.06719.04
5.4.240.0070.07319.11
5.4.230.0030.08019.02
5.4.220.0130.03719.09
5.4.210.0000.05719.24
5.4.200.0030.04719.04
5.4.190.0100.07719.02
5.4.180.0030.04018.95
5.4.170.0000.08019.05
5.4.160.0000.04018.94
5.4.150.0030.08719.00
5.4.140.0030.08016.25
5.4.130.0100.04316.23
5.4.120.0000.03716.32
5.4.110.0030.06716.30
5.4.100.0030.07316.22
5.4.90.0100.06316.21
5.4.80.0030.07316.42
5.4.70.0070.04016.20
5.4.60.0030.06316.19
5.4.50.0100.07016.40
5.4.40.0030.03716.45
5.4.30.0030.07716.30
5.4.20.0070.03716.29
5.4.10.0070.07716.39
5.4.00.0130.07015.78
5.3.290.0170.06714.52
5.3.280.0070.08014.55
5.3.270.0030.03714.56
5.3.260.0070.07314.59
5.3.250.0000.05714.60
5.3.240.0000.04314.46
5.3.230.0070.03714.60
5.3.220.0000.04014.54
5.3.210.0030.03714.38
5.3.200.0000.07714.39
5.3.190.0070.05714.55
5.3.180.0030.04314.41
5.3.170.0100.06314.41
5.3.160.0070.04014.41
5.3.150.0170.07014.41
5.3.140.0000.04314.49
5.3.130.0100.07714.40
5.3.120.0100.07014.41
5.3.110.0070.07714.36
5.3.100.0070.07714.01
5.3.90.0030.04713.95
5.3.80.0070.08013.86
5.3.70.0130.06713.92
5.3.60.0070.06713.99
5.3.50.0070.06713.79
5.3.40.0030.07713.79
5.3.30.0000.04013.89
5.3.20.0030.03713.67
5.3.10.0030.03313.64
5.3.00.0030.03713.49
5.2.170.0030.04311.19
5.2.160.0030.06311.12
5.2.150.0070.04311.21
5.2.140.0070.03710.98
5.2.130.0000.03311.14
5.2.120.0000.03711.04
5.2.110.0030.03011.09
5.2.100.0000.02710.93
5.2.90.0000.03311.12
5.2.80.0000.03011.13
5.2.70.0000.03310.93
5.2.60.0000.04011.01
5.2.50.0000.03010.96
5.2.40.0030.03011.01
5.2.30.0030.02710.96
5.2.20.0030.03710.82
5.2.10.0070.02310.91
5.2.00.0030.02710.66
5.1.60.0030.0239.98
5.1.50.0000.02310.02
5.1.40.0030.0239.97
5.1.30.0030.02710.24
5.1.20.0100.01310.24
5.1.10.0000.02310.05
5.1.00.0000.02310.11
5.0.50.0030.0208.57
5.0.40.0030.0138.29
5.0.30.0030.0238.23
5.0.20.0000.0178.27
5.0.10.0000.0178.05
5.0.00.0030.0308.14
4.4.90.0000.0177.48
4.4.80.0070.0107.48
4.4.70.0070.0107.48
4.4.60.0000.0137.48
4.4.50.0000.0177.48
4.4.40.0030.0477.48
4.4.30.0000.0137.48
4.4.20.0000.0177.48
4.4.10.0000.0177.48
4.4.00.0000.0237.48
4.3.110.0000.0137.48
4.3.100.0000.0137.48
4.3.90.0000.0137.48
4.3.80.0000.0207.48
4.3.70.0000.0137.48
4.3.60.0000.0177.48
4.3.50.0000.0137.48
4.3.40.0000.0207.48
4.3.30.0000.0137.48
4.3.20.0030.0107.48
4.3.10.0000.0137.48
4.3.00.0000.0137.48

preferences:
43.19 ms | 401 KiB | 5 Q