3v4l.org

run code in 300+ PHP versions simultaneously
<?php $my_arr = array('key' => 'value'); echo json_encode($my_arr);

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)
8.3.60.0100.01018.11
8.3.50.0150.00521.92
8.3.40.0100.01018.63
8.3.30.0100.00320.09
8.3.20.0030.00620.22
8.3.10.0050.00321.96
8.3.00.0090.00622.39
8.2.180.0060.01316.75
8.2.170.0060.00922.96
8.2.160.0100.00322.25
8.2.150.0030.00524.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0040.00420.61
8.2.110.0060.00320.39
8.2.100.0120.00017.84
8.2.90.0030.00519.28
8.2.80.0040.00419.15
8.2.70.0030.00617.50
8.2.60.0060.00318.04
8.2.50.0050.00318.07
8.2.40.0050.00320.00
8.2.30.0000.00819.42
8.2.20.0080.00017.73
8.2.10.0040.00417.54
8.2.00.0000.00717.46
8.1.280.0100.01025.92
8.1.270.0000.00823.99
8.1.260.0080.00026.35
8.1.250.0000.00728.09
8.1.240.0030.00620.84
8.1.230.0180.00018.91
8.1.220.0000.00717.74
8.1.210.0000.00818.77
8.1.200.0070.00317.23
8.1.190.0050.00317.30
8.1.180.0040.00418.88
8.1.170.0000.00918.50
8.1.160.0050.00218.80
8.1.150.0040.00418.51
8.1.140.0040.00417.30
8.1.130.0030.00317.71
8.1.120.0050.00217.29
8.1.110.0000.00717.37
8.1.100.0000.00817.34
8.1.90.0000.00717.39
8.1.80.0040.00317.39
8.1.70.0030.00317.37
8.1.60.0060.00317.54
8.1.50.0000.00717.46
8.1.40.0040.00417.33
8.1.30.0050.00317.59
8.1.20.0040.00417.48
8.1.10.0000.00717.46
8.1.00.0090.00317.44
8.0.300.0040.00418.77
8.0.290.0040.00417.05
8.0.280.0000.00718.42
8.0.270.0070.00017.11
8.0.260.0030.00316.79
8.0.250.0030.00316.94
8.0.240.0000.00816.84
8.0.230.0030.00316.88
8.0.220.0070.00016.73
8.0.210.0070.00016.83
8.0.200.0030.00316.86
8.0.190.0000.00716.93
8.0.180.0030.00316.86
8.0.170.0030.00516.87
8.0.160.0030.00316.80
8.0.150.0070.00316.82
8.0.140.0070.00016.67
8.0.130.0000.00513.25
8.0.120.0000.00716.80
8.0.110.0050.00316.71
8.0.100.0040.00416.75
8.0.90.0000.00916.74
8.0.80.0150.00016.77
8.0.70.0040.00416.87
8.0.60.0000.00816.69
8.0.50.0040.00416.85
8.0.30.0110.00917.16
8.0.20.0090.01017.40
8.0.10.0000.00716.88
8.0.00.0080.01016.85
7.4.330.0000.00515.00
7.4.320.0030.00316.57
7.4.300.0030.00316.38
7.4.290.0030.00316.43
7.4.280.0060.00016.50
7.4.270.0030.00316.41
7.4.260.0000.00613.30
7.4.250.0000.00816.39
7.4.240.0070.00016.36
7.4.230.0030.00316.32
7.4.220.0060.01316.55
7.4.210.0090.00816.42
7.4.200.0070.00016.40
7.4.190.0000.00716.65
7.4.160.0110.01116.28
7.4.150.0100.01317.40
7.4.140.0120.00517.86
7.4.130.0090.00816.53
7.4.120.0070.01016.52
7.4.110.0060.01116.39
7.4.100.0100.00716.41
7.4.90.0140.00316.25
7.4.80.0100.00719.39
7.4.70.0040.01316.36
7.4.60.0060.01116.24
7.4.50.0000.00916.37
7.4.40.0150.00422.77
7.4.30.0090.00916.45
7.4.00.0070.00714.89
7.3.330.0000.00512.92
7.3.320.0000.00713.03
7.3.310.0000.00715.95
7.3.300.0030.00316.05
7.3.290.0000.01816.09
7.3.280.0050.01316.19
7.3.270.0130.00317.40
7.3.260.0110.01216.17
7.3.250.0070.01016.16
7.3.240.0080.01216.32
7.3.230.0040.01216.39
7.3.210.0060.01316.39
7.3.200.0090.01519.39
7.3.190.0060.01016.16
7.3.180.0090.00616.19
7.3.170.0060.01016.27
7.3.160.0080.00816.14
7.3.120.0040.00814.78
7.2.330.0040.01516.16
7.2.320.0140.00416.64
7.2.310.0060.01416.55
7.2.300.0060.00916.64
7.2.290.0110.00716.27
7.2.60.0000.01416.75
7.2.00.0120.00319.39
7.1.200.0100.00015.53
7.1.100.0070.00717.76
7.1.70.0060.01217.11
7.1.60.0090.01519.32
7.1.50.0080.00816.67
7.1.00.0000.07022.30
7.0.200.0040.00716.76
7.0.140.0070.07022.21
7.0.90.0130.04319.87
7.0.80.0070.04019.90
7.0.70.0070.04019.87
7.0.60.0230.03320.08
7.0.50.0130.03720.34
7.0.40.0030.03320.08
7.0.30.0070.03720.02
7.0.20.0030.03320.08
7.0.10.0000.04020.07
7.0.00.0130.08020.04
5.6.280.0030.07020.95
5.6.240.0070.05020.63
5.6.230.0100.05720.58
5.6.220.0030.04020.48
5.6.210.0070.03720.55
5.6.200.0070.04021.11
5.6.190.0070.03021.13
5.6.180.0000.03721.13
5.6.170.0070.03320.93
5.6.160.0030.07021.02
5.6.150.0100.03721.01
5.6.140.0000.04721.03
5.6.130.0030.04321.00
5.6.120.0030.07021.07
5.6.110.0100.07020.94
5.6.100.0100.07321.04
5.6.90.0030.04321.08
5.6.80.0070.04320.46
5.6.70.0100.07320.29
5.6.60.0070.06320.44
5.6.50.0100.03320.45
5.6.40.0130.06320.46
5.6.30.0070.04720.30
5.6.20.0070.08020.40
5.6.10.0030.06720.37
5.6.00.0100.07020.36
5.5.380.0170.06020.40
5.5.370.0030.04020.36
5.5.360.0100.03320.43
5.5.350.0030.04320.41
5.5.340.0030.03320.80
5.5.330.0030.04020.92
5.5.320.0070.03020.74
5.5.310.0100.02720.91
5.5.300.0000.04720.83
5.5.290.0070.07720.77
5.5.280.0100.06020.88
5.5.270.0130.06720.80
5.5.260.0070.07720.89
5.5.250.0070.04020.54
5.5.240.0070.03720.27
5.5.230.0000.04320.23
5.5.220.0030.06720.19
5.5.210.0130.06320.16
5.5.200.0030.06020.26
5.5.190.0030.07020.22
5.5.180.0070.03720.14
5.5.160.0070.04720.14
5.5.150.0030.05020.07
5.5.140.0070.07720.23
5.5.130.0100.07320.12
5.5.120.0000.07020.10
5.5.110.0000.07320.13
5.5.100.0100.04320.07
5.5.90.0130.07020.09
5.5.80.0070.07320.12
5.5.70.0030.07320.05
5.5.60.0030.04319.99
5.5.50.0130.07720.14
5.5.40.0070.08020.10
5.5.30.0030.07320.09
5.5.20.0000.05320.03
5.5.10.0030.08020.02
5.5.00.0100.04320.09
5.4.450.0000.04319.27
5.4.440.0070.04319.30
5.4.430.0030.03719.11
5.4.420.0000.04019.30
5.4.410.0100.03319.32
5.4.400.0000.04019.07
5.4.390.0030.07019.09
5.4.380.0070.06319.19
5.4.370.0030.03718.97
5.4.360.0130.06318.90
5.4.350.0030.06318.90
5.4.340.0100.05318.95
5.4.320.0100.07018.98
5.4.310.0070.08018.95
5.4.300.0030.08319.17
5.4.290.0070.06718.94
5.4.280.0100.07019.22
5.4.270.0070.06719.04
5.4.260.0100.08018.94
5.4.250.0070.06319.21
5.4.240.0030.04019.04
5.4.230.0070.05718.83
5.4.220.0030.07018.80
5.4.210.0170.07018.77
5.4.200.0130.06718.94
5.4.190.0000.05019.11
5.4.180.0070.03719.02
5.4.170.0070.07719.13
5.4.160.0070.07019.12
5.4.150.0070.04718.89
5.4.140.0030.04316.32
5.4.130.0030.07016.27
5.4.120.0070.07316.08
5.4.110.0070.06716.42
5.4.100.0070.06716.40
5.4.90.0100.06016.26
5.4.80.0070.05016.29
5.4.70.0070.07016.45
5.4.60.0070.06316.18
5.4.50.0070.06716.38
5.4.40.0100.07016.29
5.4.30.0130.06716.23
5.4.20.0100.05716.41
5.4.10.0030.04016.40
5.4.00.0030.03315.68
5.3.290.0100.06714.66
5.3.280.0130.03314.57
5.3.270.0100.06714.59
5.3.260.0030.08014.61
5.3.250.0030.06014.59
5.3.240.0130.06314.51
5.3.230.0070.04714.55
5.3.220.0030.06314.42
5.3.210.0030.07314.52
5.3.200.0030.08014.55
5.3.190.0030.07314.55
5.3.180.0100.06714.52
5.3.170.0070.04714.54
5.3.160.0030.04314.46
5.3.150.0000.04314.54
5.3.140.0100.06014.54
5.3.130.0130.06014.50
5.3.120.0030.06014.40
5.3.110.0000.07314.38
5.3.100.0100.05014.02
5.3.90.0030.03713.87
5.3.80.0070.03313.77
5.3.70.0100.03313.86
5.3.60.0070.03313.87
5.3.50.0100.03013.80
5.3.40.0000.04013.87
5.3.30.0030.05313.66
5.3.20.0000.04313.54
5.3.10.0070.05013.64
5.3.00.0100.06313.41
5.2.170.0000.03011.16
5.2.160.0030.02711.16
5.2.150.0000.03011.14
5.2.140.0070.02711.14
5.2.130.0100.02310.91
5.2.120.0070.05710.89
5.2.110.0100.04311.13
5.2.100.0100.02711.02
5.2.90.0030.06711.04
5.2.80.0070.03311.16
5.2.70.0030.04311.09
5.2.60.0030.05311.04
5.2.50.0130.04010.96
5.2.40.0100.02710.86
5.2.30.0030.06310.96
5.2.20.0070.06310.90
5.2.10.0030.05710.80
5.2.00.0100.05010.73
5.1.60.0030.0579.98
5.1.50.0030.0409.82
5.1.40.0030.02310.04
5.1.30.0070.05010.28
5.1.20.0130.05010.37
5.1.10.0000.06010.11
5.1.00.0070.05310.11
5.0.50.0000.0378.57
5.0.40.0070.0378.39
5.0.30.0000.0578.28
5.0.20.0100.0338.07
5.0.10.0030.0478.16
5.0.00.0000.0638.21
4.4.90.0000.0206.96
4.4.80.0030.0276.96
4.4.70.0100.0236.96
4.4.60.0000.0236.96
4.4.50.0030.0306.96
4.4.40.0000.0576.96
4.4.30.0000.0176.96
4.4.20.0030.0376.96
4.4.10.0000.0376.96
4.4.00.0000.0376.96
4.3.110.0070.0206.96
4.3.100.0030.0206.96
4.3.90.0000.0376.96
4.3.80.0030.0406.96
4.3.70.0000.0336.96
4.3.60.0070.0176.96
4.3.50.0000.0176.96
4.3.40.0170.0176.96
4.3.30.0000.0206.96
4.3.20.0000.0176.96
4.3.10.0000.0336.96
4.3.00.0000.0236.96

preferences:
40.84 ms | 401 KiB | 5 Q