3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { } $a = new Foo(); $b = array(); var_dump(isset($a->b->c)); var_dump(isset($b['b']['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)
8.3.60.0170.00318.31
8.3.50.0080.01017.37
8.3.40.0110.00718.52
8.3.30.0090.00618.76
8.3.20.0040.01118.60
8.3.10.0150.00420.47
8.3.00.0030.00617.63
8.2.180.0120.00616.38
8.2.170.0070.01022.96
8.2.160.0070.00722.08
8.2.150.0000.00724.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00419.77
8.2.110.0060.00320.99
8.2.100.0070.00417.72
8.2.90.0030.00619.05
8.2.80.0070.00017.97
8.2.70.0080.00017.36
8.2.60.0080.00017.93
8.2.50.0040.00418.07
8.2.40.0030.00620.07
8.2.30.0070.00018.07
8.2.20.0040.00417.52
8.2.10.0000.00717.68
8.2.00.0030.00617.70
8.1.280.0070.01325.92
8.1.270.0070.00024.66
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00022.66
8.1.230.0040.00820.95
8.1.220.0090.00018.77
8.1.210.0060.00618.90
8.1.200.0060.00317.23
8.1.190.0000.00817.41
8.1.180.0030.00618.10
8.1.170.0000.00718.84
8.1.160.0040.00418.84
8.1.150.0000.00718.66
8.1.140.0000.00717.37
8.1.130.0030.00317.74
8.1.120.0060.00317.39
8.1.110.0000.00717.45
8.1.100.0040.00417.27
8.1.90.0050.00217.28
8.1.80.0040.00417.32
8.1.70.0030.00317.34
8.1.60.0050.00317.40
8.1.50.0000.00717.30
8.1.40.0060.00317.33
8.1.30.0000.00717.52
8.1.20.0040.00417.45
8.1.10.0000.00717.55
8.1.00.0000.00717.52
8.0.300.0040.00419.91
8.0.290.0080.00016.63
8.0.280.0030.00318.28
8.0.270.0030.00517.20
8.0.260.0070.00016.75
8.0.250.0070.00016.92
8.0.240.0030.00616.90
8.0.230.0000.00716.75
8.0.220.0000.00716.85
8.0.210.0100.00016.82
8.0.200.0070.00016.88
8.0.190.0000.00816.77
8.0.180.0000.00716.88
8.0.170.0000.00816.75
8.0.160.0030.00316.86
8.0.150.0060.00316.66
8.0.140.0090.00516.68
8.0.130.0000.00713.22
8.0.120.0000.00716.82
8.0.110.0050.00316.65
8.0.100.0070.00016.69
8.0.90.0060.00316.70
8.0.80.0160.00616.76
8.0.70.0040.00416.73
8.0.60.0000.00716.82
8.0.50.0020.00516.65
8.0.30.0110.01217.01
8.0.20.0100.01017.07
8.0.10.0030.00516.80
8.0.00.0110.01016.71
7.4.330.0000.00512.89
7.4.320.0030.00316.64
7.4.300.0030.00316.45
7.4.290.0030.00416.60
7.4.280.0030.00616.50
7.4.270.0030.00316.52
7.4.260.0030.00313.26
7.4.250.0070.00016.49
7.4.240.0030.00316.59
7.4.230.0000.00716.48
7.4.220.0090.00616.64
7.4.210.0060.00916.56
7.4.200.0070.00016.63
7.4.190.0070.00016.48
7.4.160.0060.01116.49
7.4.150.0130.00516.41
7.4.140.0070.01017.09
7.4.130.0030.01416.54
7.4.120.0080.00816.51
7.4.110.0160.00716.27
7.4.100.0090.00916.55
7.4.90.0110.00916.66
7.4.80.0030.01316.62
7.4.70.0040.01816.46
7.4.60.0110.00616.47
7.4.50.0060.00316.29
7.4.40.0050.00416.63
7.4.30.0050.01116.55
7.4.00.0040.01114.84
7.3.330.0030.00313.33
7.3.320.0000.00513.23
7.3.310.0070.00016.23
7.3.300.0030.00316.21
7.3.290.0050.01016.32
7.3.280.0050.01116.31
7.3.270.0110.00517.07
7.3.260.0140.00316.98
7.3.250.0080.01216.42
7.3.240.0120.00416.38
7.3.230.0140.00316.48
7.3.210.0000.01716.38
7.3.200.0150.00919.39
7.3.190.0070.01516.56
7.3.180.0130.00916.36
7.3.170.0140.00316.31
7.3.160.0120.00416.38
7.3.120.0080.00714.85
7.3.10.0000.01116.54
7.3.00.0040.00716.52
7.2.330.0120.00916.54
7.2.320.0050.01116.74
7.2.310.0070.01016.36
7.2.300.0070.01016.34
7.2.290.0120.00616.66
7.2.130.0040.00916.51
7.2.120.0070.00716.48
7.2.110.0080.00416.45
7.2.100.0040.00416.58
7.2.90.0060.00616.71
7.2.80.0120.00416.72
7.2.70.0070.00316.70
7.2.60.0070.00316.78
7.2.50.0050.00816.14
7.2.40.0110.00716.30
7.2.30.0100.01016.18
7.2.20.0090.00616.25
7.2.10.0090.00616.61
7.2.00.0070.00718.04
7.1.250.0050.00515.53
7.1.100.0200.00017.54
7.1.70.0000.01017.05
7.1.60.0070.01819.40
7.1.50.0190.01534.88
7.1.00.0030.03722.43
7.0.200.0000.00716.35
7.0.140.0070.06722.15
7.0.120.0000.03321.96
7.0.60.0030.07319.89
7.0.50.0030.05717.85
7.0.40.0100.06020.02
7.0.30.0430.04720.09
7.0.20.0230.07020.33
7.0.10.0000.05020.06
7.0.00.0070.04020.24
5.6.280.0100.06720.98
5.6.210.0100.05320.71
5.6.200.0030.04318.15
5.6.190.0100.06020.55
5.6.180.4070.04020.55
5.6.170.0470.06720.51
5.6.160.0170.07320.48
5.6.150.0030.08718.27
5.6.140.0100.07718.24
5.6.130.0170.06318.27
5.6.120.0100.03320.94
5.6.110.0070.03721.14
5.6.100.0100.08021.11
5.6.90.0170.05721.00
5.6.80.0170.06720.38
5.5.350.0200.04720.42
5.5.340.0070.05317.98
5.5.330.0030.04320.31
5.5.320.0430.06720.27
5.5.310.0170.04020.34
5.5.300.0130.08017.95
5.5.290.0030.07317.98
5.5.280.0070.07720.72
5.5.270.0000.09320.88
5.5.260.0000.05020.77
5.5.250.0070.03720.66
5.5.240.0170.07720.35
5.4.450.0000.04319.57
5.4.440.0070.05019.52
5.4.430.0000.06319.38
5.4.420.0030.04019.44
5.4.410.0070.06719.27
5.4.400.0130.07319.24
5.4.390.0070.07719.16
5.4.380.0070.05019.14
5.4.370.0070.07018.93
5.4.360.0030.04019.08
5.4.350.0130.07318.98
5.4.340.0000.04719.12
5.4.320.0100.07718.97
5.4.310.0130.07019.24
5.4.300.0100.05319.20
5.4.290.0030.04719.25
5.4.280.0030.08318.92
5.4.270.0130.04718.86
5.4.260.0130.04318.97
5.4.250.0070.03318.86
5.4.240.0070.07319.11
5.4.230.0070.04019.23
5.4.220.0100.07019.08
5.4.210.0130.04318.84
5.4.200.0000.07319.16
5.4.190.0100.04019.14
5.4.180.0070.07019.19
5.4.170.0170.06319.11
5.4.160.0070.07719.12
5.4.150.0000.04719.05
5.4.140.0000.08016.41
5.4.130.0070.05716.37
5.4.120.0000.06016.31
5.4.110.0070.07016.43
5.4.100.0170.06316.45
5.4.90.0030.04716.37
5.4.80.0100.07316.41
5.4.70.0070.06316.65
5.4.60.0100.04016.65
5.4.50.0070.06316.28
5.4.40.0100.07016.64
5.4.30.0100.07016.36
5.4.20.0030.03716.46
5.4.10.0070.04316.32
5.4.00.0030.07315.88
5.3.290.0070.06714.72
5.3.280.0100.04314.47
5.3.270.0000.04714.64
5.3.260.0030.05014.62
5.3.250.0030.04314.59
5.3.240.0030.06714.67
5.3.230.0030.07014.61
5.3.220.0070.07714.60
5.3.210.0100.05014.61
5.3.200.0100.05714.63
5.3.190.0130.07314.55
5.3.180.0030.06714.55
5.3.170.0100.06714.56
5.3.160.0070.07314.57
5.3.150.0100.07714.71
5.3.140.0070.03314.55
5.3.130.0070.04314.55
5.3.120.0070.04014.58
5.3.110.0100.04314.54
5.3.100.0070.08014.17
5.3.90.0100.04714.05
5.3.80.0070.05714.02
5.3.70.0130.06714.16
5.3.60.0000.08014.03
5.3.50.0070.04013.97
5.3.40.0070.03313.91
5.3.30.0070.04013.94
5.3.20.0230.05713.74
5.3.10.0100.07313.54
5.3.00.0030.07313.70
5.2.170.0070.02711.14
5.2.160.0000.03311.14
5.2.150.0170.05311.18
5.2.140.0070.06011.21
5.2.130.0030.06011.02
5.2.120.0000.04311.25
5.2.110.0100.02711.13
5.2.100.0030.04711.15
5.2.90.0030.06011.07
5.2.80.0070.05311.23
5.2.70.0070.05311.05
5.2.60.0030.03011.09
5.2.50.0030.03011.01
5.2.40.0030.03010.93
5.2.30.0000.03010.97
5.2.20.0070.04010.96
5.2.10.0030.06310.82
5.2.00.0000.04310.86
5.1.60.0070.0509.95
5.1.50.0100.0479.97
5.1.40.0100.0279.96
5.1.30.0030.05310.25
5.1.20.0030.04310.40
5.1.10.0030.02710.11
5.1.00.0030.06010.13
5.0.50.0070.0438.55
5.0.40.0100.0278.31
5.0.30.0030.0438.26
5.0.20.0000.0278.20
5.0.10.0030.0208.20
5.0.00.0000.0338.20
4.4.90.0030.0338.20
4.4.80.0000.0178.20
4.4.70.0030.0238.20
4.4.60.0000.0338.20
4.4.50.0000.0338.20
4.4.40.0030.0308.20
4.4.30.0000.0208.20
4.4.20.0100.0338.20
4.4.10.0030.0378.20
4.4.00.0000.0538.20
4.3.110.0070.0278.20
4.3.100.0030.0138.20
4.3.90.0070.0138.20
4.3.80.0030.0308.20
4.3.70.0030.0338.20
4.3.60.0130.0238.20
4.3.50.0070.0238.20
4.3.40.0000.0338.20
4.3.30.0070.0178.20
4.3.20.0000.0238.20
4.3.10.0000.0208.20
4.3.00.0030.0338.20

preferences:
39 ms | 401 KiB | 5 Q