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']->d['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)
8.3.60.0120.00316.38
8.3.50.0100.01018.20
8.3.40.0070.01118.66
8.3.30.0080.00618.77
8.3.20.0080.00018.79
8.3.10.0040.00418.74
8.3.00.0050.00319.25
8.2.180.0180.00616.63
8.2.170.0070.00722.96
8.2.160.0130.00618.91
8.2.150.0000.00824.18
8.2.140.0030.00624.66
8.2.130.0040.00426.16
8.2.120.0000.00820.64
8.2.110.0190.00322.02
8.2.100.0090.00317.72
8.2.90.0040.00419.24
8.2.80.0000.00818.05
8.2.70.0060.00317.38
8.2.60.0040.00417.93
8.2.50.0050.00317.80
8.2.40.0000.00819.88
8.2.30.0060.00317.66
8.2.20.0030.00919.32
8.2.10.0040.00417.80
8.2.00.0040.00417.69
8.1.280.0140.00025.92
8.1.270.0070.00023.99
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0060.00323.91
8.1.230.0110.00022.11
8.1.220.0040.00417.78
8.1.210.0030.00618.77
8.1.200.0040.00417.23
8.1.190.0060.00317.11
8.1.180.0040.00418.10
8.1.170.0040.00417.62
8.1.160.0000.00718.92
8.1.150.0040.00418.58
8.1.140.0050.00217.44
8.1.130.0030.00317.85
8.1.120.0000.00717.31
8.1.110.0000.00717.30
8.1.100.0040.00417.40
8.1.90.0050.00217.34
8.1.80.0050.00217.30
8.1.70.0050.00317.27
8.1.60.0040.00417.41
8.1.50.0000.00717.47
8.1.40.0050.00317.40
8.1.30.0000.00817.51
8.1.20.0000.00717.62
8.1.10.0000.00717.44
8.1.00.0000.00717.52
8.0.300.0050.00318.77
8.0.290.0000.00816.63
8.0.280.0030.00318.57
8.0.270.0000.00717.20
8.0.260.0030.00316.73
8.0.250.0070.00016.93
8.0.240.0040.00416.95
8.0.230.0000.00716.95
8.0.220.0000.00716.77
8.0.210.0070.00016.84
8.0.200.0030.00316.78
8.0.190.0050.00216.88
8.0.180.0040.00416.87
8.0.170.0040.00416.75
8.0.160.0000.00716.82
8.0.150.0040.00416.78
8.0.140.0070.00316.72
8.0.130.0030.00313.20
8.0.120.0100.00016.76
8.0.110.0000.00716.82
8.0.100.0050.00216.68
8.0.90.0040.00416.64
8.0.80.0050.00916.79
8.0.70.0000.00716.70
8.0.60.0000.00816.64
8.0.50.0070.00016.68
8.0.30.0150.00417.05
8.0.20.0110.00817.10
8.0.10.0000.00716.91
8.0.00.0100.00916.76
7.4.330.0030.00313.11
7.4.320.0030.00316.60
7.4.300.0030.00316.63
7.4.290.0030.00316.52
7.4.280.0030.00616.63
7.4.270.0030.00416.55
7.4.260.0000.00513.27
7.4.250.0050.00216.60
7.4.240.0040.00416.53
7.4.230.0030.00316.59
7.4.220.0030.01316.51
7.4.210.0090.00616.48
7.4.200.0040.00416.53
7.4.190.0040.00416.52
7.4.160.0090.00616.41
7.4.150.0100.00716.56
7.4.140.0230.01416.38
7.4.130.0100.00716.53
7.4.120.0100.00716.57
7.4.110.0140.00416.48
7.4.100.0080.00916.51
7.4.90.0040.01316.63
7.4.80.0090.00919.39
7.4.70.0030.01616.49
7.4.60.0120.00316.54
7.4.50.0080.00416.61
7.4.40.0040.01516.30
7.4.30.0080.00816.46
7.4.00.0100.00315.18
7.3.330.0030.00313.23
7.3.320.0060.00013.21
7.3.310.0000.00716.30
7.3.300.0030.00316.32
7.3.290.0080.00816.30
7.3.280.0080.00816.35
7.3.270.0140.00316.27
7.3.260.0110.01116.43
7.3.250.0130.00816.39
7.3.240.0030.01316.39
7.3.230.0150.00316.41
7.3.210.0060.01116.34
7.3.200.0060.01316.25
7.3.190.0080.00816.57
7.3.180.0040.01616.29
7.3.170.0110.00516.42
7.3.160.0110.00716.61
7.3.120.0030.01014.69
7.2.330.0150.00616.36
7.2.320.0100.01016.70
7.2.310.0140.00616.40
7.2.300.0180.00516.34
7.2.290.0070.01016.41
7.2.00.0060.00919.36
7.1.100.0000.01117.93
7.1.70.0030.00817.21
7.1.60.0030.00717.19
7.1.50.0060.01216.86
7.1.00.0000.08022.40
7.0.200.0000.01416.40
7.0.140.0030.07321.96
7.0.120.0100.06721.95
7.0.60.0070.09020.03
7.0.50.0000.06317.83
7.0.40.0070.09020.22
7.0.30.0370.03720.12
7.0.20.0330.06720.23
7.0.10.0100.08320.09
7.0.00.0130.03720.25
5.6.280.0000.07720.90
5.6.210.0100.07020.59
5.6.200.0030.08018.29
5.6.190.0070.08320.48
5.6.180.3700.04020.48
5.6.170.0170.05720.63
5.6.160.0130.04320.50
5.6.150.0030.08718.11
5.6.140.0070.08018.25
5.6.130.0030.04018.13
5.6.120.0070.06020.90
5.6.110.0070.07321.01
5.6.100.0030.07020.98
5.6.90.0100.07720.96
5.6.80.0070.07720.40
5.5.350.0270.08020.37
5.5.340.0070.07718.09
5.5.330.0030.04020.27
5.5.320.0430.06320.27
5.5.310.0500.05720.35
5.5.300.0030.08318.02
5.5.290.0130.07018.06
5.5.280.0030.08020.79
5.5.270.0100.08020.79
5.5.260.0130.08020.71
5.5.250.0030.04720.67
5.5.240.0270.07020.18
5.4.450.0030.04319.18
5.4.440.0130.07719.47
5.4.430.0100.08019.46
5.4.420.0030.04719.44
5.4.410.0030.07319.44
5.4.400.0030.08018.98
5.4.390.0070.07019.14
5.4.380.0130.07019.15
5.4.370.0000.05719.15
5.4.360.0170.06718.92
5.4.350.0070.04718.94
5.4.340.0030.05318.87
5.4.320.0030.08319.15
5.4.310.0100.03319.16
5.4.300.0030.06318.84
5.4.290.0070.03719.25
5.4.280.0030.03718.86
5.4.270.0030.03718.98
5.4.260.0000.04019.23
5.4.250.0000.04019.13
5.4.240.0000.04018.84
5.4.230.0000.04719.14
5.4.220.0070.03718.85
5.4.210.0070.03319.13
5.4.200.0000.04019.24
5.4.190.0070.03318.84
5.4.180.0000.04018.99
5.4.170.0000.04019.14
5.4.160.0030.03718.83
5.4.150.0100.03018.85
5.4.140.0070.03316.29
5.4.130.0070.04316.38
5.4.120.0030.04016.24
5.4.110.0030.03316.30
5.4.100.0030.03316.27
5.4.90.0000.04016.43
5.4.80.0030.03316.36
5.4.70.0030.04016.41
5.4.60.0030.03716.27
5.4.50.0000.03716.37
5.4.40.0070.03716.64
5.4.30.0000.04016.38
5.4.20.0030.03316.44
5.4.10.0030.03316.38
5.4.00.0030.03315.78
5.3.290.0030.06714.58
5.3.280.0000.04314.66
5.3.270.0030.04014.65
5.3.260.0000.04014.65
5.3.250.0030.03714.52
5.3.240.0030.03714.48
5.3.230.0000.04014.48
5.3.220.0000.04714.70
5.3.210.0000.04014.63
5.3.200.0030.03714.71
5.3.190.0030.03714.56
5.3.180.0030.03714.71
5.3.170.0030.03714.70
5.3.160.0070.03714.59
5.3.150.0070.04014.47
5.3.140.0070.03014.56
5.3.130.0030.04014.70
5.3.120.0030.03714.57
5.3.110.0070.03714.61
5.3.100.0070.03314.02
5.3.90.0070.03314.06
5.3.80.0000.07013.90
5.3.70.0070.07314.05
5.3.60.0170.06314.03
5.3.50.0100.06314.00
5.3.40.0000.08713.97
5.3.30.0030.07013.92
5.3.20.0170.06013.86
5.3.10.0030.07013.54
5.3.00.0070.05013.69
5.2.170.0030.04311.06
5.2.160.0030.04711.16
5.2.150.0070.06011.09
5.2.140.0130.04311.10
5.2.130.0030.06311.02
5.2.120.0100.03011.16
5.2.110.0000.05711.11
5.2.100.0130.05011.13
5.2.90.0030.06311.11
5.2.80.0030.05311.09
5.2.70.0100.05711.04
5.2.60.0030.06311.04
5.2.50.0030.04310.97
5.2.40.0030.05011.14
5.2.30.0030.04011.04
5.2.20.0130.04710.94
5.2.10.0130.05311.01
5.2.00.0100.05710.66
5.1.60.0030.0439.89
5.1.50.0000.04010.14
5.1.40.0030.05710.03
5.1.30.0100.03710.48
5.1.20.0030.05710.26
5.1.10.0000.04010.02
5.1.00.0070.05310.06
5.0.50.0070.0209.46
5.0.40.0070.0439.46
5.0.30.0030.0639.46
5.0.20.0000.0379.46
5.0.10.0030.0309.46
5.0.00.0000.0679.46
4.4.90.0000.0209.46
4.4.80.0030.0279.46
4.4.70.0030.0209.46
4.4.60.0000.0379.46
4.4.50.0030.0239.46
4.4.40.0000.0609.46
4.4.30.0130.0139.46
4.4.20.0000.0339.46
4.4.10.0070.0239.46
4.4.00.0030.0579.46
4.3.110.0070.0239.46
4.3.100.0070.0209.46
4.3.90.0000.0209.46
4.3.80.0030.0539.46
4.3.70.0070.0309.46
4.3.60.0070.0239.46
4.3.50.0030.0209.46
4.3.40.0070.0439.46
4.3.30.0000.0409.46
4.3.20.0000.0379.46
4.3.10.0000.0379.46
4.3.00.0000.0409.46

preferences:
50.75 ms | 401 KiB | 5 Q