3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo json_encode(array(0 => 'A', 1 => 'B')); echo "\n"; echo json_encode(array(1 => 'A', 2 => 'C'));

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)
8.3.70.0140.00316.58
8.3.60.0070.00718.56
8.3.50.0070.01022.80
8.3.40.0090.00618.80
8.3.30.0000.01419.02
8.3.20.0070.00020.39
8.3.10.0030.00521.80
8.3.00.0000.00817.38
8.2.180.0120.00618.13
8.2.170.0070.00722.96
8.2.160.0030.01020.32
8.2.150.0000.00824.18
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0080.00021.02
8.2.110.0090.00020.92
8.2.100.0090.00318.07
8.2.90.0040.00419.17
8.2.80.0080.00017.97
8.2.70.0080.00017.50
8.2.60.0000.00917.93
8.2.50.0030.00618.10
8.2.40.0040.00418.03
8.2.30.0040.00417.93
8.2.20.0040.00417.52
8.2.10.0000.00717.79
8.2.00.0000.00817.53
8.1.280.0200.01225.92
8.1.270.0060.00623.99
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0000.00922.54
8.1.230.0000.01120.46
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0000.00916.88
8.1.190.0050.00317.23
8.1.180.0030.00618.10
8.1.170.0030.00520.27
8.1.160.0040.00421.95
8.1.150.0070.00018.65
8.1.140.0000.00717.19
8.1.130.0030.00317.70
8.1.120.0040.00417.38
8.1.110.0050.00317.38
8.1.100.0040.00317.32
8.1.90.0000.00717.37
8.1.80.0000.00717.23
8.1.70.0000.00817.20
8.1.60.0050.00317.46
8.1.50.0040.00417.26
8.1.40.0030.00617.27
8.1.30.0040.00417.52
8.1.20.0030.00617.55
8.1.10.0000.00717.30
8.1.00.0040.00417.39
8.0.300.0040.00418.77
8.0.290.0030.00516.58
8.0.280.0070.00018.37
8.0.270.0030.00617.18
8.0.260.0000.00617.16
8.0.250.0040.00416.86
8.0.240.0000.00716.95
8.0.230.0070.00016.68
8.0.220.0030.00316.74
8.0.210.0070.00016.72
8.0.200.0030.00316.78
8.0.190.0070.00016.71
8.0.180.0000.00716.69
8.0.170.0060.00316.78
8.0.160.0050.00316.71
8.0.150.0030.00316.67
8.0.140.0090.00316.76
8.0.130.0000.00613.23
8.0.120.0080.00016.78
8.0.110.0000.00716.73
8.0.100.0020.00516.69
8.0.90.0030.00316.57
8.0.80.0060.00916.64
8.0.70.0040.00416.57
8.0.60.0040.00416.70
8.0.50.0040.00416.58
8.0.30.0050.01816.79
8.0.20.0110.00717.40
8.0.10.0070.00016.78
8.0.00.0120.00916.57
7.4.330.0000.00515.00
7.4.320.0030.00316.38
7.4.300.0030.00316.46
7.4.290.0070.00016.46
7.4.280.0000.00716.46
7.4.270.0070.00016.35
7.4.260.0050.00316.25
7.4.250.0040.00416.42
7.4.240.0050.00216.43
7.4.230.0030.00316.49
7.4.220.0090.00916.37
7.4.210.0030.01616.33
7.4.200.0030.00316.39
7.4.160.0080.00816.48
7.4.150.0060.01217.40
7.4.140.0120.00917.86
7.4.130.0050.01216.38
7.4.120.0130.00716.39
7.4.110.0100.01316.26
7.4.100.0150.00316.21
7.4.90.0080.01116.46
7.4.80.0120.00619.39
7.4.70.0080.00816.24
7.4.60.0060.01616.43
7.4.50.0040.00416.08
7.4.40.0100.01316.35
7.4.30.0000.01516.45
7.4.00.0040.01214.65
7.3.330.0000.00612.94
7.3.320.0000.00613.11
7.3.310.0070.00016.07
7.3.300.0000.00615.93
7.3.290.0090.00916.10
7.3.280.0100.00616.10
7.3.270.0110.00817.40
7.3.260.0070.01016.20
7.3.250.0060.01116.19
7.3.240.0100.00716.24
7.3.230.0090.00616.39
7.3.210.0100.00716.09
7.3.200.0080.01219.39
7.3.190.0150.00316.26
7.3.180.0060.01016.30
7.3.170.0160.00316.52
7.3.160.0130.00316.22
7.2.330.0070.00916.57
7.2.320.0090.00916.28
7.2.310.0070.01016.47
7.2.300.0070.01016.39
7.2.290.0030.01216.29
7.1.70.0130.01017.11
7.1.60.0030.02019.40
7.1.50.0100.00616.53
7.1.00.0000.08022.32
7.0.200.0070.00016.71
7.0.140.0030.07321.97
7.0.90.0570.08019.88
7.0.80.0470.04019.90
7.0.70.0600.08319.88
7.0.60.0470.07319.90
7.0.50.0630.03720.30
7.0.40.0100.07720.19
7.0.30.0070.08020.09
7.0.20.0070.08320.07
7.0.10.0030.06719.95
7.0.00.0100.07720.09
5.6.280.0070.07020.91
5.6.240.0170.07320.72
5.6.230.0070.04720.62
5.6.220.0100.07720.64
5.6.210.0070.07720.64
5.6.200.0030.05020.98
5.6.190.0100.07720.93
5.6.180.0130.07721.04
5.6.170.0030.09021.00
5.6.160.0100.08320.93
5.6.150.0130.07321.00
5.6.140.0130.08321.13
5.6.130.0000.08021.01
5.6.120.0030.07021.02
5.6.110.0070.07721.04
5.6.100.0030.08720.94
5.6.90.0030.09021.11
5.6.80.0070.03720.33
5.6.70.0100.07320.32
5.6.60.0100.04320.32
5.6.50.0130.07720.39
5.6.40.0100.05020.30
5.6.30.0130.06320.45
5.6.20.0070.07020.38
5.6.10.0030.04720.39
5.6.00.0130.06720.38
5.5.380.0070.08020.36
5.5.370.0030.04320.54
5.5.360.0070.08020.36
5.5.350.0170.07320.42
5.5.340.0130.04020.80
5.5.330.0130.07320.87
5.5.320.0100.07720.63
5.5.310.0070.07720.85
5.5.300.0130.06720.79
5.5.290.0100.08020.85
5.5.280.0030.07020.81
5.5.270.0100.07720.74
5.5.260.0100.04020.91
5.5.250.0070.05320.71
5.5.240.0170.06720.26
5.5.230.0070.04720.26
5.5.220.0070.05720.12
5.5.210.0000.07320.25
5.5.200.0130.06020.25
5.5.190.0030.09020.27
5.5.180.0100.04720.21
5.5.160.0030.06020.07
5.5.150.0100.04320.25
5.5.140.0000.05020.24
5.5.130.0070.04320.17
5.5.120.0100.04020.27
5.5.110.0030.07320.21
5.5.100.0000.08020.17
5.5.90.0230.03019.94
5.5.80.0070.08020.00
5.5.70.0030.05020.06
5.5.60.0130.04720.14
5.5.50.0030.07320.13
5.5.40.0100.06320.09
5.5.30.0130.07019.98
5.5.20.0130.07320.04
5.5.10.0000.05720.08
5.5.00.0070.08320.10
5.4.450.0070.07019.42
5.4.440.0070.08319.16
5.4.430.0170.07019.29
5.4.420.0030.04719.13
5.4.410.0070.08019.23
5.4.400.0030.03718.95
5.4.390.0030.07719.23
5.4.380.0070.05019.12
5.4.370.0130.05318.81
5.4.360.0030.09018.94
5.4.350.0030.07319.11
5.4.340.0170.05019.03
5.4.320.0170.06019.06
5.4.310.0070.06719.12
5.4.300.0030.04018.96
5.4.290.0070.03718.78
5.4.280.0000.08019.24
5.4.270.0070.06719.02
5.4.260.0030.04718.90
5.4.250.0030.07718.97
5.4.240.0100.06018.93
5.4.230.0070.06719.11
5.4.220.0130.06719.05
5.4.210.0130.06319.22
5.4.200.0030.05719.02
5.4.190.0030.03719.09
5.4.180.0030.04019.13
5.4.170.0100.07319.13
5.4.160.0000.07719.04
5.4.150.0070.05318.75
5.4.140.0170.06316.24
5.4.130.0100.03016.22
5.4.120.0070.06016.23
5.4.110.0070.08716.36
5.4.100.0070.06716.26
5.4.90.0030.06016.38
5.4.80.0030.03716.37
5.4.70.0000.04016.22
5.4.60.0000.08016.19
5.4.50.0130.07016.43
5.4.40.0030.07716.41
5.4.30.0030.08016.27
5.4.20.0130.04316.28
5.4.10.0000.04316.20
5.4.00.0000.04715.70
5.3.290.0070.07314.63
5.3.280.0100.07014.50
5.3.270.0070.06314.57
5.3.260.0070.06714.57
5.3.250.0070.07314.58
5.3.240.0030.06014.59
5.3.230.0070.04314.56
5.3.220.0070.07714.39
5.3.210.0030.05014.57
5.3.200.0070.07314.55
5.3.190.0100.04714.50
5.3.180.0130.03314.57
5.3.170.0030.04014.47
5.3.160.0130.07314.55
5.3.150.0030.06014.54
5.3.140.0130.07014.51
5.3.130.0070.06314.40
5.3.120.0070.05014.54
5.3.110.0000.04314.41
5.3.100.0100.06014.04
5.3.90.0030.04713.83
5.3.80.0070.07314.01
5.3.70.0100.04013.83
5.3.60.0130.06313.96
5.3.50.0100.06013.71
5.3.40.0170.03713.79
5.3.30.0170.06013.90
5.3.20.0000.07713.46
5.3.10.0030.05013.50
5.3.00.0000.08013.64
5.2.170.0100.05710.97
5.2.160.0100.03011.14
5.2.150.0030.07011.13
5.2.140.0030.06311.09
5.2.130.0070.05710.91
5.2.120.0100.06011.14
5.2.110.0200.02711.14
5.2.100.0030.06311.07
5.2.90.0030.04711.18
5.2.80.0000.05711.01
5.2.70.0000.06311.08
5.2.60.0030.05011.07
5.2.50.0100.03011.04
5.2.40.0000.05710.81
5.2.30.0030.05710.77
5.2.20.0100.05710.80
5.2.10.0000.06010.75
5.2.00.0100.04710.62
5.1.60.0000.0339.83
5.1.50.0070.0439.97
5.1.40.0070.02710.01
5.1.30.0000.03310.34
5.1.20.0030.05710.40
5.1.10.0070.05010.05
5.1.00.0030.03010.06
5.0.50.0030.0438.59
5.0.40.0000.0278.45
5.0.30.0200.0208.25
5.0.20.0070.0438.03
5.0.10.0070.0308.24
5.0.00.0000.0478.03
4.4.90.0030.0177.47
4.4.80.0030.0177.47
4.4.70.0000.0377.47
4.4.60.0000.0307.47
4.4.50.0030.0337.47
4.4.40.0070.0407.47
4.4.30.0030.0177.47
4.4.20.0030.0177.47
4.4.10.0000.0307.47
4.4.00.0030.0407.47
4.3.110.0000.0377.47
4.3.100.0030.0237.47
4.3.90.0070.0277.47
4.3.80.0000.0377.47
4.3.70.0000.0177.47
4.3.60.0030.0337.47
4.3.50.0030.0337.47
4.3.40.0030.0477.47
4.3.30.0000.0337.47
4.3.20.0000.0377.47
4.3.10.0000.0207.47
4.3.00.0000.0307.47

preferences:
50.81 ms | 401 KiB | 5 Q