3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(1, 2); $b = array($a); $a[] = $b; echo json_encode($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)
8.3.60.0100.01018.17
8.3.50.0140.00316.24
8.3.40.0040.01118.84
8.3.30.0070.00719.09
8.3.20.0040.00420.34
8.3.10.0090.00023.47
8.3.00.0030.00619.50
8.2.180.0120.00616.50
8.2.170.0120.00622.96
8.2.160.0110.00420.38
8.2.150.0000.00724.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0080.00022.13
8.2.110.0030.00622.26
8.2.100.0070.00417.84
8.2.90.0020.00519.36
8.2.80.0080.00017.97
8.2.70.0090.00317.50
8.2.60.0040.00417.80
8.2.50.0000.00818.07
8.2.40.0030.00619.95
8.2.30.0000.00718.05
8.2.20.0000.00717.65
8.2.10.0000.00818.22
8.2.00.0000.00817.60
8.1.270.0060.01221.95
8.1.260.0080.00026.35
8.1.250.0080.00028.09
8.1.240.0070.00423.77
8.1.230.0090.00320.91
8.1.220.0000.00817.77
8.1.210.0050.00318.77
8.1.200.0040.00417.11
8.1.190.0090.00017.22
8.1.180.0040.00418.10
8.1.170.0050.00318.46
8.1.160.0030.00622.01
8.1.150.0000.00718.90
8.1.140.0040.00417.54
8.1.130.0030.00317.93
8.1.120.0040.00417.49
8.1.110.0040.00417.34
8.1.100.0030.00317.44
8.1.90.0030.00617.54
8.1.80.0050.00317.46
8.1.70.0000.00717.46
8.1.60.0000.00817.61
8.1.50.0030.00617.47
8.1.40.0080.00017.54
8.1.30.0040.00417.58
8.1.20.0040.00417.71
8.1.10.0030.00517.52
8.1.00.0000.00817.28
8.0.300.0000.00818.77
8.0.290.0040.00416.63
8.0.280.0070.00018.43
8.0.270.0050.00217.25
8.0.260.0070.00017.16
8.0.250.0000.00716.86
8.0.240.0030.00316.92
8.0.230.0030.00316.93
8.0.220.0040.00416.95
8.0.210.0030.00316.80
8.0.200.0030.00316.95
8.0.190.0030.00516.87
8.0.180.0000.00716.96
8.0.170.0030.00616.82
8.0.160.0070.00016.73
8.0.150.0000.00716.72
8.0.140.0040.00416.83
8.0.130.0070.00313.36
8.0.120.0000.00816.82
8.0.110.0000.00716.79
8.0.100.0020.00516.83
8.0.90.0020.00516.87
8.0.80.0030.01416.84
8.0.70.0030.00616.92
8.0.60.0050.00216.73
8.0.50.0040.00416.91
8.0.30.0120.01217.22
8.0.20.0110.01117.40
8.0.10.0050.00216.83
8.0.00.0100.01016.85
7.4.330.0030.00315.02
7.4.320.0040.00416.58
7.4.300.0030.00316.64
7.4.290.0000.00716.41
7.4.280.0030.00316.64
7.4.270.0000.00716.64
7.4.260.0030.00616.41
7.4.250.0040.00416.46
7.4.240.0020.00516.56
7.4.230.0000.00616.57
7.4.220.0060.01216.60
7.4.210.0120.00316.60
7.4.200.0000.00716.50
7.4.160.0120.00316.37
7.4.150.0130.00717.40
7.4.140.0130.00517.86
7.4.130.0060.01116.44
7.4.120.0120.00616.51
7.4.110.0100.00916.36
7.4.100.0040.01416.66
7.4.90.0140.00316.38
7.4.80.0070.01019.39
7.4.70.0060.01516.50
7.4.60.0100.00516.47
7.4.50.0000.00716.43
7.4.40.0120.00416.26
7.4.30.0100.01016.60
7.4.00.0060.01015.01
7.3.330.0000.00513.03
7.3.320.0000.00613.05
7.3.310.0040.00416.21
7.3.300.0070.00016.06
7.3.290.0070.00916.23
7.3.280.0090.00816.20
7.3.270.0110.00817.40
7.3.260.0070.01016.22
7.3.250.0110.00916.23
7.3.240.0040.01416.22
7.3.230.0120.01216.39
7.3.210.0150.00616.40
7.3.200.0070.01119.39
7.3.190.0060.01216.44
7.3.180.0000.02216.49
7.3.170.0070.01016.30
7.3.160.0170.00016.48
7.2.330.0070.01016.48
7.2.320.0110.00516.67
7.2.310.0090.00616.63
7.2.300.0120.00316.49
7.2.290.0160.00316.61
7.2.00.0060.00619.14
7.1.100.0070.00718.09
7.1.70.0000.00917.19
7.1.60.0070.01819.11
7.1.50.0110.01416.56
7.1.00.0030.07722.28
7.0.200.0000.00916.79
7.0.140.0000.07721.95
7.0.90.0630.07319.95
7.0.80.0430.07719.91
7.0.70.0500.07319.89
7.0.60.0500.05319.98
7.0.50.0500.09020.34
7.0.40.0100.04720.03
7.0.30.0100.08719.95
7.0.20.0230.06720.19
7.0.10.0130.07720.12
7.0.00.0030.05320.04
5.6.280.0100.06320.84
5.6.240.0170.06720.75
5.6.230.0100.07320.59
5.6.220.0130.07320.67
5.6.210.0070.05320.48
5.6.200.0100.05021.10
5.6.190.0030.08321.06
5.6.180.0070.07321.13
5.6.170.0070.08320.95
5.6.160.0170.03721.17
5.6.150.0130.05321.04
5.6.140.0030.05021.09
5.6.130.0070.05321.16
5.6.120.0100.06021.05
5.6.110.0100.03320.94
5.6.100.0100.04721.08
5.6.90.0100.08321.08
5.6.80.0100.08720.39
5.6.70.0170.06720.50
5.6.60.0030.04720.39
5.6.50.0100.04720.45
5.6.40.0170.06020.53
5.6.30.0130.04320.38
5.6.20.0070.05020.38
5.6.10.0030.05320.43
5.6.00.0070.08320.37
5.5.380.0030.08020.49
5.5.370.0030.08720.36
5.5.360.0070.06020.33
5.5.350.0070.08320.36
5.5.340.0070.08020.83
5.5.330.0070.04720.92
5.5.320.0100.07320.91
5.5.310.0070.07720.72
5.5.300.0100.07720.85
5.5.290.0170.05720.88
5.5.280.0100.03720.68
5.5.270.0070.04720.75
5.5.260.0000.09020.74
5.5.250.0130.05720.73
5.5.240.0100.08020.20
5.5.230.0030.08720.30
5.5.220.0030.04720.29
5.5.210.0030.07320.16
5.5.200.0100.07020.18
5.5.190.0100.04720.26
5.5.180.0130.07020.24
5.5.160.0170.03320.17
5.5.150.0030.04320.23
5.5.140.0130.03320.14
5.5.130.0130.04720.20
5.5.120.0030.09020.11
5.5.110.0170.07320.20
5.5.100.0170.05720.03
5.5.90.0100.08020.05
5.5.80.0100.06720.06
5.5.70.0100.05320.04
5.5.60.0170.06720.07
5.5.50.0100.04320.07
5.5.40.0130.06719.92
5.5.30.0070.08020.04
5.5.20.0100.06720.07
5.5.10.0200.06320.05
5.5.00.0070.04719.95
5.4.450.0000.05719.39
5.4.440.0130.08019.35
5.4.430.0000.07719.16
5.4.420.0100.07019.35
5.4.410.0070.07719.22
5.4.400.0200.06719.23
5.4.390.0170.03719.23
5.4.380.0130.06718.95
5.4.370.0070.04719.02
5.4.360.0130.04019.05
5.4.350.0030.07718.95
5.4.340.0100.07019.04
5.4.320.0130.05319.03
5.4.310.0100.06719.12
5.4.300.0030.07718.78
5.4.290.0100.04319.11
5.4.280.0030.06319.05
5.4.270.0170.06719.05
5.4.260.0030.05019.11
5.4.250.0100.07319.14
5.4.240.0170.06319.02
5.4.230.0030.05319.02
5.4.220.0070.04319.02
5.4.210.0100.03719.02
5.4.200.0100.07019.02
5.4.190.0170.06718.80
5.4.180.0070.07319.04
5.4.170.0230.05719.04
5.4.160.0070.04319.12
5.4.150.0070.04019.00
5.4.140.0030.07716.29
5.4.130.0100.03716.31
5.4.120.0070.05016.21
5.4.110.0030.06716.40
5.4.100.0130.06016.21
5.4.90.0130.03716.20
5.4.80.0070.03716.34
5.4.70.0030.05316.20
5.4.60.0130.06316.18
5.4.50.0070.04016.35
5.4.40.0030.06016.34
5.4.30.0030.04316.30
5.4.20.0230.03316.18
5.4.10.0070.06316.28
5.4.00.0070.04715.67
5.3.290.0070.04314.66
5.3.280.0030.07714.43
5.3.270.0130.05014.56
5.3.260.0070.03714.59
5.3.250.0030.04014.45
5.3.240.0130.07014.55
5.3.230.0000.04314.59
5.3.220.0030.07714.52
5.3.210.0130.07714.54
5.3.200.0070.04314.42
5.3.190.0070.07014.50
5.3.180.0030.05314.52
5.3.170.0100.04014.47
5.3.160.0100.07014.41
5.3.150.0130.06014.47
5.3.140.0170.06014.51
5.3.130.0070.07014.48
5.3.120.0100.03714.45
5.3.110.0070.08014.49
5.3.100.0070.07314.04
5.3.90.0100.04014.00
5.3.80.0000.04014.02
5.3.70.0070.03714.00
5.3.60.0100.03714.00
5.3.50.0030.07013.94
5.3.40.0000.04713.85
5.3.30.0100.06713.86
5.3.20.0130.03313.62
5.3.10.0130.06313.61
5.3.00.0000.04313.39
5.2.170.0100.04011.13
5.2.160.0000.06711.13
5.2.150.0000.04711.06
5.2.140.0070.05711.08
5.2.130.0000.06710.92
5.2.120.0030.05311.14
5.2.110.0130.05711.14
5.2.100.0070.06010.94
5.2.90.0100.03711.05
5.2.80.0100.05311.09
5.2.70.0030.03011.05
5.2.60.0070.04711.05
5.2.50.0070.05710.93
5.2.40.0000.04710.95
5.2.30.0100.05711.02
5.2.20.0030.05311.02
5.2.10.0030.04710.87
5.2.00.0030.06010.77
5.1.60.0070.02310.04
5.1.50.0030.02710.05
5.1.40.0000.0309.97
5.1.30.0070.05310.26
5.1.20.0030.05010.42
5.1.10.0000.05010.09
5.1.00.0030.03310.05
5.0.50.0070.0438.62
5.0.40.0070.0278.40
5.0.30.0070.0408.20
5.0.20.0030.0378.18
5.0.10.0000.0378.00
5.0.00.0000.0708.14
4.4.90.0000.0177.31
4.4.80.0000.0207.31
4.4.70.0100.0277.31
4.4.60.0030.0277.31
4.4.50.0030.0337.31
4.4.40.0030.0407.31
4.4.30.0000.0277.31
4.4.20.0000.0277.31
4.4.10.0000.0307.31
4.4.00.0000.0377.31
4.3.110.0000.0377.31
4.3.100.0000.0377.31
4.3.90.0030.0337.31
4.3.80.0070.0507.31
4.3.70.0000.0237.31
4.3.60.0000.0207.31
4.3.50.0030.0277.31
4.3.40.0000.0337.31
4.3.30.0030.0337.31
4.3.20.0030.0337.31
4.3.10.0000.0377.31
4.3.00.0000.0377.31

preferences:
52.65 ms | 400 KiB | 5 Q