3v4l.org

run code in 300+ PHP versions simultaneously
<?php $data = json_decode('{"a": {"b": [], "c": {}}}'); var_dump(isset($data->a->d));

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)
8.3.60.0100.00316.50
8.3.50.0100.01017.24
8.3.40.0100.00618.61
8.3.30.0100.00318.63
8.3.20.0000.00818.61
8.3.10.0060.00320.54
8.3.00.0130.00719.38
8.2.180.0140.00716.38
8.2.170.0130.00622.96
8.2.160.0110.00420.39
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0070.00020.89
8.2.110.0070.00319.25
8.2.100.0070.00317.78
8.2.90.0030.00619.03
8.2.80.0020.00519.39
8.2.70.0080.00017.63
8.2.60.0070.00317.79
8.2.50.0030.00518.07
8.2.40.0060.00318.09
8.2.30.0000.00818.05
8.2.20.0030.00717.55
8.2.10.0040.00417.65
8.2.00.0080.00017.61
8.1.280.0070.00725.92
8.1.270.0040.00423.99
8.1.260.0000.00826.35
8.1.250.0070.00028.09
8.1.240.0040.00721.82
8.1.230.0090.00320.85
8.1.220.0000.00817.74
8.1.210.0030.00618.89
8.1.200.0060.00717.00
8.1.190.0070.00017.40
8.1.180.0030.00518.10
8.1.170.0040.00418.78
8.1.160.0000.00718.72
8.1.150.0040.00418.49
8.1.140.0030.00517.43
8.1.130.0030.00317.81
8.1.120.0110.00017.41
8.1.110.0000.00717.27
8.1.100.0000.00717.29
8.1.90.0000.00817.38
8.1.80.0000.00717.27
8.1.70.0030.00317.36
8.1.60.0000.00717.52
8.1.50.0050.00217.45
8.1.40.0000.00817.44
8.1.30.0000.00817.59
8.1.20.0000.00817.43
8.1.10.0050.00217.52
8.1.00.0000.00817.43
8.0.300.0040.00419.98
8.0.290.0000.00816.75
8.0.280.0000.00718.31
8.0.270.0070.00017.23
8.0.260.0000.00716.75
8.0.250.0040.00416.78
8.0.240.0000.00716.79
8.0.230.0030.00316.90
8.0.220.0050.00316.79
8.0.210.0070.00016.68
8.0.200.0030.00516.77
8.0.190.0040.00416.78
8.0.180.0040.00416.85
8.0.170.0050.00516.65
8.0.160.0030.00316.93
8.0.150.0060.00316.71
8.0.140.0040.00416.68
8.0.130.0050.00013.29
8.0.120.0040.00416.77
8.0.110.0080.00016.88
8.0.100.0080.00016.85
8.0.90.0050.00216.75
8.0.80.0130.00616.77
8.0.70.0040.00416.67
8.0.60.0000.00816.93
8.0.50.0080.00016.81
8.0.30.0200.00017.12
8.0.20.0120.01016.92
8.0.10.0070.00016.93
8.0.00.0110.00916.77
7.4.330.0000.00513.09
7.4.320.0040.00416.49
7.4.300.0000.00616.49
7.4.290.0000.00716.41
7.4.280.0120.00016.61
7.4.270.0070.00016.61
7.4.260.0020.00313.27
7.4.250.0030.00616.58
7.4.240.0000.00716.46
7.4.230.0040.00316.63
7.4.220.0090.00916.64
7.4.210.0060.00916.61
7.4.200.0030.00616.66
7.4.190.0030.00516.40
7.4.160.0120.00316.41
7.4.150.0120.00616.37
7.4.140.0110.00716.26
7.4.130.0100.00716.50
7.4.120.0170.00016.41
7.4.110.0110.00716.38
7.4.100.0100.01316.65
7.4.90.0110.00716.58
7.4.80.0150.00619.39
7.4.70.0140.00316.34
7.4.60.0080.00816.34
7.4.50.0090.00016.31
7.4.40.0100.00516.41
7.4.30.0090.00616.36
7.4.00.0070.01015.14
7.3.330.0000.00612.93
7.3.320.0060.00013.04
7.3.310.0030.00316.07
7.3.300.0000.00616.16
7.3.290.0090.00816.11
7.3.280.0090.00816.17
7.3.270.0100.00716.27
7.3.260.0210.00316.10
7.3.250.0140.00916.46
7.3.240.0100.01016.48
7.3.230.0100.00616.27
7.3.210.0070.01016.44
7.3.200.0040.01216.23
7.3.190.0090.00616.30
7.3.180.0110.00416.23
7.3.170.0100.00616.39
7.3.160.0060.01716.26
7.3.120.0040.01214.85
7.3.10.0000.01615.95
7.3.00.0060.01316.43
7.2.330.0030.01316.31
7.2.320.0060.01016.26
7.2.310.0160.01016.49
7.2.300.0120.00916.20
7.2.290.0130.00316.31
7.2.130.0030.01016.59
7.2.120.0120.00316.77
7.2.110.0120.00316.46
7.2.100.0090.00616.00
7.2.90.0110.00316.54
7.2.80.0080.01316.59
7.2.70.0160.00516.63
7.2.60.0090.00816.60
7.2.50.0110.00716.35
7.2.40.0110.00416.52
7.2.30.0060.00916.30
7.2.20.0080.00516.57
7.2.10.0130.00616.53
7.2.00.0050.00817.78
7.1.250.0030.01015.36
7.1.200.0000.01115.83
7.1.100.0000.01317.90
7.1.70.0070.00717.13
7.1.60.0070.01719.30
7.1.50.0070.01316.88
7.1.00.0000.07722.35
7.0.200.0110.00416.43
7.0.140.0070.07022.11
7.0.120.0030.03322.05
7.0.60.0100.08719.97
7.0.50.0270.05017.83
7.0.40.0100.03717.79
7.0.30.0000.05717.79
7.0.20.0070.07317.73
7.0.10.0000.08717.78
7.0.00.0030.08017.68
5.6.280.0030.07020.98
5.6.210.0000.06020.62
5.6.200.0070.08718.17
5.6.190.0100.05718.14
5.6.180.0030.06318.08
5.6.170.0100.06318.13
5.6.160.0130.07318.13
5.6.150.0070.05718.08
5.6.140.0070.08318.16
5.6.130.0030.05018.11
5.6.120.0070.08018.18
5.6.110.0000.05718.20
5.6.100.0100.07318.17
5.6.90.0100.07718.21
5.6.80.0070.06717.47
5.6.70.0070.03317.46
5.6.60.0030.04017.49
5.6.50.0000.04017.51
5.6.40.0130.03717.47
5.6.30.0030.04017.51
5.6.20.0000.04017.46
5.6.10.0030.04017.56
5.6.00.0130.02717.49
5.5.350.0230.06020.40
5.5.340.0030.08017.91
5.5.330.0100.05317.98
5.5.320.0100.06718.00
5.5.310.0030.07717.96
5.5.300.0100.06317.98
5.5.290.0000.05317.91
5.5.280.0070.06717.95
5.5.270.0070.04317.93
5.5.260.0030.04718.00
5.5.250.0000.08017.82
5.5.240.0030.03717.34
5.5.230.0000.04017.29
5.5.220.0000.04017.39
5.5.210.0070.04317.35
5.5.200.0070.03317.34
5.5.190.0100.03017.27
5.5.180.0000.04017.27
5.5.160.0070.03317.37
5.5.150.0000.04017.23
5.5.140.0100.03017.28
5.5.130.0030.03717.25
5.5.120.0030.03717.32
5.5.110.0000.04017.25
5.5.100.0030.03717.24
5.5.90.0030.03717.23
5.5.80.0030.03717.21
5.5.70.0100.04017.16
5.5.60.0030.03317.24
5.5.50.0000.04017.26
5.5.40.0030.03717.24
5.5.30.0100.03017.17
5.5.20.0000.04017.11
5.5.10.0000.04017.22
5.5.00.0030.03717.26
5.4.450.0230.03719.31
5.4.440.0030.07719.33
5.4.430.0130.07319.27
5.4.420.0070.07019.45
5.4.410.0070.04719.18
5.4.400.0000.07019.03
5.4.390.0100.03319.05
5.4.380.0030.04318.98
5.4.370.0100.03319.20
5.4.360.0070.03318.82
5.4.350.0030.03719.14
5.4.340.0070.03318.99
5.4.320.0070.03719.20
5.4.310.0000.04018.98
5.4.300.0030.03719.01
5.4.290.0000.04019.20
5.4.280.0030.03719.04
5.4.270.0000.04019.00
5.4.260.0030.03718.88
5.4.250.0100.03718.97
5.4.240.0030.03719.08
5.4.230.0000.04018.89
5.4.220.0070.03718.97
5.4.210.0030.04318.97
5.4.200.0000.04319.06
5.4.190.0000.04018.93
5.4.180.0000.04018.99
5.4.170.0030.03719.09
5.4.160.0000.04018.98
5.4.150.0100.03018.96
5.4.140.0030.03316.27
5.4.130.0000.05016.32
5.4.120.0000.05716.28
5.4.110.0030.04716.40
5.4.100.0070.06316.25
5.4.90.0100.04016.28
5.4.80.0030.04716.41
5.4.70.0070.07716.22
5.4.60.0070.07016.38
5.4.50.0070.07016.25
5.4.40.0000.06716.27
5.4.30.0070.07016.13
5.4.20.0030.07316.25
5.4.10.0070.05316.33
5.4.00.0070.07015.76
5.3.290.0000.04314.53
5.3.280.0070.03314.53
5.3.270.0030.03714.69
5.3.260.0000.04314.52
5.3.250.0000.04714.57
5.3.240.0000.03714.57
5.3.230.0130.05714.56
5.3.220.0100.07014.35
5.3.210.0130.04714.56
5.3.200.0070.07714.54
5.3.190.0070.07714.53
5.3.180.0070.07314.49
5.3.170.0070.06714.50
5.3.160.0000.08014.50
5.3.150.0070.07314.52
5.3.140.0130.07314.53
5.3.130.0130.07014.54
5.3.120.0100.05014.63
5.3.110.0100.07314.52
5.3.100.0070.07313.81
5.3.90.0030.08013.83
5.3.80.0100.06714.09
5.3.70.0070.08013.95
5.3.60.0030.05013.77
5.3.50.0100.06713.90
5.3.40.0070.07313.72
5.3.30.0000.08013.86
5.3.20.0000.08313.46
5.3.10.0100.04713.64
5.3.00.0070.07313.61
5.2.170.0070.05711.11
5.2.160.0100.06011.06
5.2.150.0030.06011.15
5.2.140.0070.04710.91
5.2.130.0100.06011.07
5.2.120.0030.06711.02
5.2.110.0100.03011.04
5.2.100.0100.06011.08
5.2.90.0100.06311.02
5.2.80.0030.06311.05
5.2.70.0070.04011.04
5.2.60.0130.05710.96
5.2.50.0030.06010.84
5.2.40.0070.06010.99
5.2.30.0070.06710.74
5.2.20.0100.04710.84
5.2.10.0070.05710.88
5.2.00.0100.05310.74
5.1.60.0100.0509.96
5.1.50.0170.0409.96
5.1.40.0030.0439.90
5.1.30.0000.06010.36
5.1.20.0000.05310.39
5.1.10.0030.05310.13
5.1.00.0030.04710.13
5.0.50.0000.0538.37
5.0.40.0030.0438.46
5.0.30.0070.0408.22
5.0.20.0030.0408.15
5.0.10.0070.0408.20
5.0.00.0000.0578.17
4.4.90.0000.0207.57
4.4.80.0000.0407.57
4.4.70.0030.0337.57
4.4.60.0030.0307.57
4.4.50.0030.0307.57
4.4.40.0000.0337.57
4.4.30.0070.0307.57
4.4.20.0070.0337.57
4.4.10.0030.0307.57
4.4.00.0070.0507.57
4.3.110.0030.0337.57
4.3.100.0030.0137.57
4.3.90.0070.0177.57
4.3.80.0030.0477.57
4.3.70.0030.0307.57
4.3.60.0000.0407.57
4.3.50.0030.0377.57
4.3.40.0030.0377.57
4.3.30.0000.0237.57
4.3.20.0000.0207.57
4.3.10.0000.0237.57
4.3.00.0000.0207.57

preferences:
42 ms | 401 KiB | 5 Q