3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo json_encode(array(1 => 'foo', 0 => 'bar'));

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)
8.3.70.0150.00616.63
8.3.60.0090.00916.63
8.3.50.0070.01017.20
8.3.40.0100.00718.63
8.3.30.0040.01118.45
8.3.20.0080.00018.48
8.3.10.0080.00018.53
8.3.00.0050.00319.25
8.2.180.0040.01516.38
8.2.170.0140.00722.96
8.2.160.0100.00718.77
8.2.150.0030.00624.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00421.05
8.2.110.0030.00622.20
8.2.100.0070.00617.72
8.2.90.0040.00417.63
8.2.80.0080.00017.97
8.2.70.0080.00017.91
8.2.60.0050.00318.04
8.2.50.0000.00719.21
8.2.40.0030.00620.60
8.2.30.0040.00417.89
8.2.20.0000.00817.55
8.2.10.0040.00417.59
8.2.00.0020.00517.54
8.1.280.0110.00425.92
8.1.270.0000.00823.99
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0030.00622.48
8.1.230.0070.00417.76
8.1.220.0030.00617.76
8.1.210.0050.00318.77
8.1.200.0060.00317.23
8.1.190.0000.00917.23
8.1.180.0050.00318.10
8.1.170.0000.00718.57
8.1.160.0040.00418.65
8.1.150.0000.00718.46
8.1.140.0070.00017.31
8.1.130.0000.00717.62
8.1.120.0040.00417.32
8.1.110.0050.00317.32
8.1.100.0070.00017.36
8.1.90.0040.00417.29
8.1.80.0040.00417.34
8.1.70.0030.00317.21
8.1.60.0040.00417.29
8.1.50.0000.00817.34
8.1.40.0040.00417.37
8.1.30.0000.00917.32
8.1.20.0000.00717.47
8.1.10.0020.00517.43
8.1.00.0040.00417.26
8.0.300.0000.00718.77
8.0.290.0000.00716.58
8.0.280.0000.00718.36
8.0.270.0030.00317.18
8.0.260.0060.00016.79
8.0.250.0030.00516.83
8.0.240.0070.00016.79
8.0.230.0030.00316.84
8.0.220.0000.00716.70
8.0.210.0030.00316.64
8.0.200.0060.00316.80
8.0.190.0000.00716.73
8.0.180.0000.00716.70
8.0.170.0000.00816.74
8.0.160.0030.00516.71
8.0.150.0030.00616.53
8.0.140.0080.00316.71
8.0.130.0030.00313.20
8.0.120.0030.00716.73
8.0.110.0030.00316.64
8.0.100.0030.00316.68
8.0.90.0040.00416.61
8.0.80.0070.00716.74
8.0.70.0040.00416.82
8.0.60.0070.00016.80
8.0.50.0000.00716.55
8.0.30.0090.01216.71
8.0.20.0040.01416.98
8.0.10.0000.00716.81
8.0.00.0110.00816.56
7.4.330.0030.00512.83
7.4.320.0000.00616.50
7.4.300.0000.00616.28
7.4.290.0070.00016.35
7.4.280.0000.00716.45
7.4.270.0070.00016.47
7.4.260.0000.00513.11
7.4.250.0040.00416.34
7.4.240.0000.00716.46
7.4.230.0030.00316.36
7.4.220.0070.01016.41
7.4.210.0070.01416.48
7.4.200.0050.00216.49
7.4.190.0070.00016.30
7.4.160.0110.00416.27
7.4.150.0180.00016.14
7.4.140.0100.00716.52
7.4.130.0100.01316.23
7.4.120.0130.00316.22
7.4.110.0130.00616.63
7.4.100.0100.00716.51
7.4.90.0090.00916.42
7.4.80.0140.00819.39
7.4.70.0070.01016.42
7.4.60.0100.00616.21
7.4.50.0090.00016.27
7.4.40.0040.01516.41
7.4.30.0100.00716.64
7.4.00.0000.01214.89
7.3.330.0000.00612.90
7.3.320.0030.00512.95
7.3.310.0000.00716.09
7.3.300.0030.00316.14
7.3.290.0070.00816.10
7.3.280.0020.01316.14
7.3.270.0080.00816.47
7.3.260.0040.01316.16
7.3.250.0090.01016.23
7.3.240.0060.01016.46
7.3.230.0140.00716.46
7.3.210.0030.01316.07
7.3.200.0090.00616.22
7.3.190.0030.01716.07
7.3.180.0090.00616.06
7.3.170.0130.00316.23
7.3.160.0090.00616.17
7.3.120.0060.01214.69
7.2.330.0140.00616.37
7.2.320.0070.01016.23
7.2.310.0090.00916.64
7.2.300.0100.01316.36
7.2.290.0050.01116.32
7.2.00.0000.01819.25
7.1.100.0070.00718.01
7.1.70.0000.01017.07
7.1.60.0100.01319.30
7.1.50.0100.01316.60
7.1.00.0000.06022.45
7.0.200.0070.00716.60
7.0.140.0030.07022.12
7.0.120.0070.06022.03
7.0.110.0070.07320.03
7.0.100.0130.07319.98
7.0.90.0330.05719.90
7.0.80.0000.04319.88
7.0.70.0570.07019.91
7.0.60.0400.04019.93
7.0.50.0370.07319.91
7.0.40.0070.07019.85
7.0.30.0100.03719.75
7.0.20.0030.08319.70
7.0.10.0000.04319.77
7.0.00.0030.04019.64
5.6.280.0070.07020.88
5.6.260.0100.04720.68
5.6.250.0100.07320.59
5.6.240.0030.04320.84
5.6.230.0070.07320.83
5.6.220.0070.07020.67
5.6.210.0100.07720.70
5.6.200.0130.07720.61
5.6.190.0130.05720.63
5.6.180.0070.07320.61
5.6.170.0030.04320.65
5.6.160.0030.04320.55
5.6.150.0030.05320.58
5.6.140.0030.04020.84
5.6.130.0030.04720.58
5.6.120.0070.04020.58
5.6.110.0030.04320.54
5.6.100.0030.04320.59
5.6.90.0000.04020.61
5.6.80.0070.03319.92
5.6.70.0070.03719.92
5.6.60.0070.06320.06
5.6.50.0030.03719.96
5.6.40.0030.03020.04
5.6.30.0130.02320.05
5.6.20.0030.03319.91
5.6.10.0000.03719.97
5.6.00.0000.04019.82
5.5.380.0030.04017.62
5.5.370.0030.04017.58
5.5.360.0070.08317.61
5.5.350.0030.09317.64
5.5.340.0100.06717.85
5.5.330.0070.08018.13
5.5.320.0070.06318.02
5.5.310.0100.07018.13
5.5.300.0070.03317.86
5.5.290.0070.03717.86
5.5.280.0100.03317.86
5.5.270.0030.04018.09
5.5.260.0070.03718.09
5.5.250.0070.03017.84
5.5.240.0000.04717.25
5.5.230.0030.08717.22
5.5.220.0000.03717.38
5.5.210.0030.04017.50
5.5.200.0000.04017.22
5.5.190.0130.04017.24
5.5.180.0030.04017.47
5.5.160.0000.03717.45
5.5.150.0000.03317.21
5.5.140.0000.03317.50
5.5.130.0000.03317.11
5.5.120.0030.03717.50
5.5.110.0030.03717.47
5.5.100.0070.03017.12
5.5.90.0070.03017.26
5.5.80.0030.03317.35
5.5.70.0030.03017.25
5.5.60.0030.03017.49
5.5.50.0100.02317.30
5.5.40.0030.03717.49
5.5.30.0070.03017.10
5.5.20.0030.04017.36
5.5.10.0030.03017.39
5.5.00.0030.04317.12
5.4.450.0070.03719.33
5.4.440.0070.03319.39
5.4.430.0030.04019.55
5.4.420.0100.03319.36
5.4.410.0070.07019.37
5.4.400.0000.04019.13
5.4.390.0070.06319.09
5.4.380.0000.04019.01
5.4.370.0070.03318.92
5.4.360.0030.04019.09
5.4.350.0130.03019.08
5.4.340.0000.04319.13
5.4.320.0070.03019.14
5.4.310.0070.02719.07
5.4.300.0070.03018.99
5.4.290.0000.03318.94
5.4.280.0030.03319.12
5.4.270.0070.02719.12
5.4.260.0070.03019.09
5.4.250.0000.03319.00
5.4.240.0030.03319.05
5.4.230.0030.03318.98
5.4.220.0070.03319.07
5.4.210.0030.03019.20
5.4.200.0030.03318.99
5.4.190.0030.03318.93
5.4.180.0030.03718.90
5.4.170.0030.03019.08
5.4.160.0030.03019.06
5.4.150.0030.03319.00
5.4.140.0070.03016.43
5.4.130.0000.04016.50
5.4.120.0070.03316.42
5.4.110.0100.06316.50
5.4.100.0100.07016.40
5.4.90.0070.04016.52
5.4.80.0130.07316.35
5.4.70.0100.08016.16
5.4.60.0070.04016.37
5.4.50.0070.05716.34
5.4.40.0000.04716.51
5.4.30.0030.06316.26
5.4.20.0000.04716.34
5.4.10.0100.03316.33
5.4.00.0070.03715.60
5.3.290.0030.03014.60
5.3.280.0030.03314.68
5.3.270.0030.03314.68
5.3.260.0000.04014.45
5.3.250.0000.03714.50
5.3.240.0000.03314.50
5.3.230.0000.04314.42
5.3.220.0030.03014.39
5.3.210.0070.06014.64
5.3.200.0100.04714.42
5.3.190.0070.04314.66
5.3.180.0170.06014.66
5.3.170.0100.07314.66
5.3.160.0100.05014.43
5.3.150.0070.06314.57
5.3.140.0100.05014.48
5.3.130.0100.03714.37
5.3.120.0170.03314.33
5.3.110.0000.05314.37
5.3.100.0070.07314.13
5.3.90.0100.06314.03
5.3.80.0070.05013.86
5.3.70.0070.04714.04
5.3.60.0070.04013.88
5.3.50.0170.06314.01
5.3.40.0070.08313.86
5.3.30.0030.06013.69
5.3.20.0100.06713.62
5.3.10.0070.05313.52
5.3.00.0030.04713.55
5.2.170.0030.04311.82
5.2.160.0000.03711.82
5.2.150.0000.03711.82
5.2.140.0070.06011.82
5.2.130.0070.02711.82
5.2.120.0030.04711.82
5.2.110.0000.03311.82
5.2.100.0070.04311.82
5.2.90.0070.03711.82
5.2.80.0030.05011.82
5.2.70.0030.04011.82
5.2.60.0000.05311.82
5.2.50.0000.03711.82
5.2.40.0030.04311.82
5.2.30.0070.05711.82
5.2.20.0030.02311.82
5.2.10.0100.05011.82
5.2.00.0070.06011.82
5.1.60.0030.02711.82
5.1.50.0030.04011.82
5.1.40.0100.04311.82
5.1.30.0030.04311.82
5.1.20.0070.04711.82
5.1.10.0100.04711.82
5.1.00.0030.05711.82
5.0.50.0000.02311.82
5.0.40.0000.02711.82
5.0.30.0030.06011.82
5.0.20.0030.03711.82
5.0.10.0030.03711.82
5.0.00.0000.05011.82
4.4.90.0030.03011.82
4.4.80.0000.03711.82
4.4.70.0070.03011.82
4.4.60.0000.03311.82
4.4.50.0000.03711.82
4.4.40.0070.05011.82
4.4.30.0000.04311.82
4.4.20.0000.02011.82
4.4.10.0030.03011.82
4.4.00.0000.03011.82
4.3.110.0000.03011.82
4.3.100.0000.03011.82
4.3.90.0000.02311.82
4.3.80.0000.02711.82
4.3.70.0030.02311.82
4.3.60.0000.03011.82
4.3.50.0030.01711.82
4.3.40.0030.02311.82
4.3.30.0070.03011.82
4.3.20.0000.03711.82
4.3.10.0000.03011.82
4.3.00.0000.02311.82

preferences:
49.2 ms | 401 KiB | 5 Q