3v4l.org

run code in 300+ PHP versions simultaneously
) <?php class X { private $i = 'foo'; } class Y extends X { public $a, $b = 2; protected $c, $d = 'd'; private $e, $i = 'bar'; } echo $s = serialize(new Y); var_dump(unserialize($s));

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)
8.3.60.0070.01416.38
8.3.50.0110.00922.89
8.3.40.0110.00718.67
8.3.30.0070.01119.17
8.3.20.0040.00420.16
8.3.10.0090.00023.71
8.3.00.0000.00919.38
8.2.180.0140.00718.54
8.2.170.0070.00722.96
8.2.160.0110.00320.45
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0120.00326.16
8.2.120.0070.00021.09
8.2.110.0060.00320.40
8.2.100.0040.00718.11
8.2.90.0040.00418.92
8.2.80.0050.00317.97
8.2.70.0050.00317.36
8.2.60.0070.00317.68
8.2.50.0040.00418.07
8.2.40.0000.00819.82
8.2.30.0050.00218.01
8.2.20.0000.00817.68
8.2.10.0040.00417.86
8.2.00.0040.00417.48
8.1.280.0100.01025.92
8.1.270.0040.01123.98
8.1.260.0070.00026.35
8.1.250.0000.00728.09
8.1.240.0060.00322.02
8.1.230.0070.00319.15
8.1.220.0000.00817.76
8.1.210.0040.00418.77
8.1.200.0030.00617.35
8.1.190.0000.00817.22
8.1.180.0040.00418.10
8.1.170.0040.00418.46
8.1.160.0000.00721.85
8.1.150.0000.00818.86
8.1.140.0040.00417.31
8.1.130.0000.00717.81
8.1.120.0040.00417.37
8.1.110.0000.00817.39
8.1.100.0030.00517.43
8.1.90.0040.00417.43
8.1.80.0040.00417.32
8.1.70.0000.00717.29
8.1.60.0060.00617.51
8.1.50.0060.00317.49
8.1.40.0080.00017.40
8.1.30.0040.00417.57
8.1.20.0040.00417.56
8.1.10.0000.00817.56
8.1.00.0050.00317.55
8.0.300.0000.00718.77
8.0.290.0050.00316.63
8.0.280.0080.00318.32
8.0.270.0000.00717.13
8.0.260.0040.00417.14
8.0.250.0000.00717.01
8.0.240.0030.00316.98
8.0.230.0030.00316.88
8.0.220.0070.00016.76
8.0.210.0070.00016.95
8.0.200.0000.00716.99
8.0.190.0060.00317.01
8.0.180.0050.00216.93
8.0.170.0000.00816.89
8.0.160.0040.00416.73
8.0.150.0000.00716.83
8.0.140.0000.00716.82
8.0.130.0000.00613.23
8.0.120.0080.00016.72
8.0.110.0050.00316.92
8.0.100.0090.00016.71
8.0.90.0070.00016.75
8.0.80.0030.01316.93
8.0.70.0040.00416.84
8.0.60.0040.00416.78
8.0.50.0040.00416.76
8.0.30.0080.01017.04
8.0.20.0070.01317.40
8.0.10.0040.00417.04
8.0.00.0080.01016.82
7.4.330.0020.00215.02
7.4.320.0030.00316.46
7.4.300.0030.00316.44
7.4.290.0090.00016.38
7.4.280.0070.00316.48
7.4.270.0030.00316.39
7.4.260.0000.00616.32
7.4.250.0000.00716.39
7.4.240.0020.00516.43
7.4.230.0060.00016.24
7.4.220.0090.00916.40
7.4.210.0140.00716.59
7.4.200.0070.00016.53
7.4.160.0080.00816.21
7.4.150.0130.00617.40
7.4.140.0110.00717.86
7.4.130.0060.01116.40
7.4.120.0140.00716.49
7.4.110.0100.00716.27
7.4.100.0150.00916.32
7.4.90.0100.00716.49
7.4.80.0140.00719.39
7.4.70.0130.00316.47
7.4.60.0070.01116.40
7.4.50.0000.00916.32
7.4.40.0140.00716.29
7.4.30.0140.00316.50
7.4.00.0060.01114.95
7.3.330.0020.00213.20
7.3.320.0050.00013.23
7.3.310.0070.00016.21
7.3.300.0000.00716.16
7.3.290.0100.01016.20
7.3.280.0110.00716.18
7.3.270.0140.00317.40
7.3.260.0100.00716.45
7.3.250.0120.00616.30
7.3.240.0140.00716.27
7.3.230.0040.01216.51
7.3.210.0090.00616.14
7.3.200.0040.01319.39
7.3.190.0030.01316.57
7.3.180.0100.01316.60
7.3.170.0050.01416.45
7.3.160.0130.00216.34
7.3.120.0110.00714.89
7.3.110.0030.01614.54
7.3.100.0030.01214.65
7.3.90.0070.00714.60
7.3.80.0030.00714.68
7.3.70.0100.00714.60
7.3.60.0070.00714.67
7.3.50.0030.00914.56
7.3.40.0040.01114.57
7.3.30.0070.01014.66
7.3.20.0070.01016.34
7.3.10.0060.00916.47
7.3.00.0050.00716.35
7.2.330.0060.01316.64
7.2.320.0140.01016.51
7.2.310.0130.01016.67
7.2.300.0090.00916.46
7.2.290.0080.01116.57
7.2.250.0100.01015.14
7.2.240.0070.01414.81
7.2.230.0030.01314.86
7.2.220.0070.01114.63
7.2.210.0040.01115.02
7.2.200.0120.00614.75
7.2.190.0040.01515.09
7.2.180.0000.01414.82
7.2.170.0040.01114.62
7.2.130.0070.00516.76
7.2.120.0070.01016.72
7.2.110.0030.00916.67
7.2.100.0070.00716.49
7.2.90.0070.00516.86
7.2.80.0090.00616.78
7.2.70.0090.00216.58
7.2.60.0050.00616.79
7.2.50.0080.00616.69
7.2.40.0060.00516.90
7.2.30.0000.01516.84
7.2.20.0040.01116.89
7.2.10.0090.00716.76
7.2.00.0090.00517.55
7.1.330.0090.00615.63
7.1.320.0090.00615.61
7.1.310.0070.00715.38
7.1.300.0070.00615.57
7.1.290.0040.00715.88
7.1.280.0060.01215.63
7.1.270.0030.01015.58
7.1.260.0050.00415.71
7.1.250.0030.00715.59
7.1.200.0030.01015.56
7.1.100.0040.00717.94
7.1.70.0040.00717.04
7.1.60.0060.01319.46
7.1.50.0060.01616.86
7.1.00.0030.07722.29
7.0.200.0030.00616.77
7.0.140.0070.07022.04
7.0.60.0170.07319.98
7.0.50.0100.07717.88
7.0.40.0070.08720.23
7.0.30.0070.05020.19
7.0.20.0230.05320.07
7.0.10.0170.07720.15
7.0.00.0230.06720.09
5.6.280.0000.07720.91
5.6.210.0070.08720.51
5.6.200.0070.07718.14
5.6.190.0070.06020.63
5.6.180.0370.04720.53
5.6.170.0330.04720.47
5.6.160.0100.08320.54
5.6.150.0070.06018.22
5.6.140.0130.03318.20
5.6.130.0070.06318.14
5.6.120.0100.08020.88
5.6.110.0100.08321.14
5.6.100.0130.07721.07
5.6.90.0100.08020.96
5.6.80.0130.03020.50
5.5.350.0230.08020.47
5.5.340.0030.04317.92
5.5.330.0100.03320.25
5.5.320.0300.04720.32
5.5.310.0200.06020.40
5.5.300.0070.08018.08
5.5.290.0100.07718.06
5.5.280.0200.07320.80
5.5.270.0030.04020.78
5.5.260.0030.08320.86
5.5.250.0030.08020.61
5.5.240.0100.03320.35
5.4.450.0170.04319.32
5.4.440.0070.04719.50
5.4.430.0170.04019.54
5.4.420.0130.04019.27
5.4.410.0100.04719.42
5.4.400.0130.04019.22
5.4.390.0130.04319.13
5.4.380.0470.06018.70
5.4.370.0330.05318.71
5.4.360.0400.05318.83
5.4.350.0230.06318.71
5.4.340.0470.04318.60
5.4.320.0090.04312.50
5.4.310.0070.04712.49
5.4.300.0080.03912.50
5.4.290.0120.03912.50
5.4.280.0090.04112.39
5.4.270.0110.03812.39
5.4.260.0090.04612.39
5.4.250.0090.03912.39
5.4.240.0060.04412.39
5.4.230.0080.05312.39
5.4.220.0070.04312.38
5.4.210.0070.04712.38
5.4.200.0080.04012.39
5.4.190.0070.03512.38
5.4.180.0090.03512.38
5.4.170.0110.03812.39
5.4.160.0070.03812.38
5.4.150.0040.04112.38
5.4.140.0110.03812.06
5.4.130.0110.04012.05
5.4.120.0070.04012.01
5.4.110.0090.03712.01
5.4.100.0060.03912.01
5.4.90.0080.03712.01
5.4.80.0070.04412.01
5.4.70.0090.03612.00
5.4.60.0100.03312.00
5.4.50.0090.04012.00
5.4.40.0110.04711.99
5.4.30.0120.03311.99
5.4.20.0090.04311.99
5.4.10.0080.03511.99
5.4.00.0070.03711.48
5.3.290.0080.04212.80
5.3.280.0090.04112.71
5.3.270.0090.04812.73
5.3.260.0050.03912.72
5.3.250.0100.05612.72
5.3.240.0100.04512.72
5.3.230.0090.04012.71
5.3.220.0080.03912.68
5.3.210.0070.04612.68
5.3.200.0160.03312.68
5.3.190.0110.03912.68
5.3.180.0090.04612.67
5.3.170.0050.04412.67
5.3.160.0080.04412.67
5.3.150.0100.04612.68
5.3.140.0090.04312.66
5.3.130.0050.04112.65
5.3.120.0100.04712.66
5.3.110.0040.04312.66
5.3.100.0050.04912.12
5.3.90.0070.03612.10
5.3.80.0090.03612.10
5.3.70.0070.03712.09
5.3.60.0070.03712.08
5.3.50.0080.03412.02
5.3.40.0060.03612.03
5.3.30.0080.03311.99
5.3.20.0040.03611.77
5.3.10.0040.04711.73
5.3.00.0090.04111.72
5.2.170.0100.0369.22
5.2.160.0040.0329.22
5.2.150.0050.0369.22
5.2.140.0080.0319.21
5.2.130.0080.0329.18
5.2.120.0060.0359.18
5.2.110.0090.0469.18
5.2.100.0060.0279.18
5.2.90.0160.0299.18
5.2.80.0040.0329.18
5.2.70.0090.0309.18
5.2.60.0060.0359.13
5.2.50.0040.0389.10
5.2.40.0040.0309.07
5.2.30.0080.0349.05
5.2.20.0090.0299.04
5.2.10.0070.0388.95
5.2.00.0030.0308.81
5.1.60.0070.0258.09
5.1.50.0040.0318.09
5.1.40.0050.0298.07
5.1.30.0080.0368.42
5.1.20.0070.0278.44
5.1.10.0090.0238.17
5.1.00.0060.0278.16
5.0.50.0050.0226.64
5.0.40.0060.0236.50
5.0.30.0080.0296.31
5.0.20.0070.0206.28
5.0.10.0040.0236.26
5.0.00.0030.0376.25
4.4.90.0040.0194.77
4.4.80.0010.0174.75
4.4.70.0020.0214.76
4.4.60.0040.0214.75
4.4.50.0030.0204.77
4.4.40.0030.0254.71
4.4.30.0050.0144.76
4.4.20.0040.0214.84
4.4.10.0040.0184.85
4.4.00.0060.0314.76
4.3.110.0030.0154.67
4.3.100.0020.0154.67
4.3.90.0030.0184.63
4.3.80.0040.0334.59
4.3.70.0030.0264.63
4.3.60.0060.0204.63
4.3.50.0060.0234.62
4.3.40.0050.0284.53
4.3.30.0010.0213.30
4.3.20.0020.0173.28
4.3.10.0030.0213.23
4.3.00.0000.01314.87

preferences:
51.39 ms | 400 KiB | 5 Q