3v4l.org

run code in 300+ PHP versions simultaneously
<?php class kissa implements Serializable { private $foo = 8; public $bar = 'kissa'; protected $baz = []; public function serialize() { return json_encode( get_class_vars( self::class ) ); } public function unserialize( $s ) {} } var_dump( serialize(new kissa()) );

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)
8.3.60.0120.00318.68
8.3.50.0110.00418.01
8.3.40.0070.00718.53
8.3.30.0120.00618.59
8.3.20.0060.00320.73
8.3.10.0080.00021.73
8.3.00.0050.00320.93
8.2.180.0140.00425.92
8.2.170.0110.01118.79
8.2.160.0140.00022.96
8.2.150.0080.00025.66
8.2.140.0060.00324.66
8.2.130.0070.00026.16
8.2.120.0090.00020.79
8.2.110.0030.00622.08
8.2.100.0000.01217.72
8.2.90.0030.00517.84
8.2.80.0040.00419.16
8.2.70.0080.00017.63
8.2.60.0080.00017.63
8.2.50.0030.00617.78
8.2.40.0050.00318.05
8.2.30.0040.00419.30
8.2.20.0040.00417.98
8.2.10.0000.00819.23
8.2.00.0080.00018.25
8.1.280.0110.01125.92
8.1.270.0070.00020.23
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0030.00623.97
8.1.230.0090.00319.25
8.1.220.0030.00617.74
8.1.210.0000.00818.95
8.1.200.0060.00317.23
8.1.190.0030.00517.23
8.1.180.0050.00518.10
8.1.170.0080.00017.62
8.1.160.0050.00218.82
8.1.150.0070.00018.74
8.1.140.0080.00018.96
8.1.130.0000.00820.32
8.1.120.0040.00417.43
8.1.110.0040.00717.39
8.1.100.0000.00817.33
8.1.90.0030.00517.22
8.1.80.0030.00617.46
8.1.70.0000.00717.32
8.1.60.0040.00417.42
8.1.50.0000.00817.46
8.1.40.0040.00417.32
8.1.30.0000.00817.51
8.1.20.0060.00317.54
8.1.10.0020.00517.37
8.1.00.0080.00017.24
8.0.300.0070.00020.09
8.0.290.0030.00516.75
8.0.280.0040.00418.43
8.0.270.0000.00717.12
8.0.260.0000.00718.36
8.0.250.0050.00216.97
8.0.240.0030.00316.85
8.0.230.0030.00316.89
8.0.220.0030.00516.82
8.0.210.0030.00316.80
8.0.200.0040.00416.91
8.0.190.0000.00816.96
8.0.180.0040.00416.85
8.0.170.0030.00616.91
8.0.160.0020.00516.82
8.0.150.0040.00316.78
8.0.140.0000.00716.66
8.0.130.0060.00013.32
8.0.120.0000.00716.83
8.0.110.0060.00316.72
8.0.100.0040.00416.74
8.0.90.0000.00716.81
8.0.80.0040.01116.83
8.0.70.0000.00716.70
8.0.60.0000.00716.78
8.0.50.0000.00716.77
8.0.30.0100.01316.95
8.0.20.0120.00516.88
8.0.10.0000.00816.94
8.0.00.0090.00816.80
7.4.330.0000.00516.82
7.4.320.0040.00416.41
7.4.300.0020.00516.43
7.4.290.0030.00316.54
7.4.280.0040.00416.52
7.4.270.0000.00816.44
7.4.260.0000.00716.54
7.4.250.0000.00916.34
7.4.240.0070.00016.36
7.4.230.0030.00316.36
7.4.220.0000.00816.36
7.4.210.0050.01216.61
7.4.200.0030.00316.57
7.4.160.0080.01016.56
7.4.130.0060.01316.28
7.4.120.0070.01016.30
7.4.110.0100.00716.56
7.4.100.0060.01316.55
7.4.90.0000.02016.42
7.4.80.0040.01219.39
7.4.70.0080.01316.51
7.4.60.0080.00816.52
7.4.50.0060.00916.51
7.4.40.0140.00316.56
7.4.00.0080.00714.84
7.3.330.0050.00213.18
7.3.320.0030.00313.19
7.3.310.0020.00516.26
7.3.300.0000.00616.13
7.3.290.0030.00316.12
7.3.280.0070.01016.22
7.3.260.0080.01116.47
7.3.240.0110.00716.29
7.3.230.0110.00616.23
7.3.210.0060.01016.37
7.3.200.0060.01016.14
7.3.190.0130.00916.43
7.3.180.0150.00616.35
7.3.170.0160.00016.28
7.3.160.0150.00016.29
7.3.30.0110.00714.62
7.3.20.0520.00514.60
7.3.10.0430.00814.64
7.3.00.0500.00514.87
7.2.330.0100.00716.66
7.2.320.0180.00016.27
7.2.310.0170.00716.60
7.2.300.0080.00916.50
7.2.290.0000.01816.62
7.2.160.0120.00414.87
7.2.150.0490.00514.90
7.2.140.0420.00814.76
7.2.130.0460.00514.67
7.2.120.0530.00814.75
7.2.110.0540.01115.06
7.2.100.0520.00314.79
7.2.90.0450.00614.81
7.2.80.0490.00814.83
7.2.70.0470.00314.62
7.2.60.0510.00714.80
7.2.50.0690.00214.78
7.2.40.0480.00314.85
7.2.30.0490.00714.93
7.2.20.0570.00514.89
7.2.10.0510.00214.75
7.2.00.0850.00514.76
7.1.270.0520.00613.82
7.1.260.0500.00313.77
7.1.250.0450.01213.53
7.1.240.0710.00013.32
7.1.230.0540.01613.07
7.1.220.0580.00313.20
7.1.210.0630.01413.96
7.1.200.0570.00313.73
7.1.190.0540.00613.78
7.1.180.0760.00713.87
7.1.170.0980.00413.74
7.1.160.0590.01013.60
7.1.150.0620.01013.95
7.1.140.0650.00313.79
7.1.130.0670.01013.82
7.1.120.0660.00313.54
7.1.110.0460.00713.56
7.1.100.0590.00013.62
7.1.90.0460.00013.77
7.1.80.0460.00713.69
7.1.70.0520.00913.56
7.1.60.0660.00913.41
7.1.50.0520.01013.45
7.1.40.0650.01013.66
7.1.30.0430.01413.86
7.1.20.0490.00313.72
7.1.10.0530.01013.40
7.1.00.0350.01113.45
7.0.330.0530.01013.29
7.0.320.0580.00613.38
7.0.310.0520.02113.34
7.0.300.0640.01413.36
7.0.290.0560.00413.07
7.0.280.0640.00013.41
7.0.270.0590.00713.36
7.0.260.0690.00313.13
7.0.250.0670.00613.45
7.0.240.0550.00313.61
7.0.230.0640.01013.63
7.0.220.0610.00613.48
7.0.210.0490.01013.52
7.0.200.0570.01013.38
7.0.190.0500.01113.58
7.0.180.0660.00913.46
7.0.170.1100.00313.50
7.0.160.0640.00713.17
7.0.150.0490.00913.44
7.0.140.0440.01313.38
7.0.130.0580.01513.36
7.0.120.0620.00313.45
7.0.110.0760.00313.53
7.0.100.0530.00013.60
7.0.90.0610.00913.24
7.0.80.0440.00313.44
7.0.70.0440.01013.41
7.0.60.0540.01313.43
7.0.50.0420.00713.55
7.0.40.0530.00913.32
7.0.30.0620.00013.33
7.0.20.0640.00713.22
7.0.10.0700.00313.44
7.0.00.0630.01213.53
5.6.400.0200.00613.91
5.6.390.0090.00613.79
5.6.380.0210.00913.79
5.6.370.0210.00914.30
5.6.360.0210.01214.17
5.6.350.0150.01514.40
5.6.340.0090.01714.27
5.6.330.0180.01213.98
5.6.320.0100.00714.43
5.6.310.0130.01314.53
5.6.300.0200.00314.41
5.6.290.0150.01814.06
5.6.280.0110.00714.30
5.6.270.0290.00614.30
5.6.260.0130.01714.05
5.6.250.0150.00614.50
5.6.240.0150.00914.30
5.6.230.0200.00714.27
5.6.220.0050.01414.11
5.6.210.0240.00314.07
5.6.200.0160.01214.30
5.6.190.0160.01214.32
5.6.180.0130.01014.33
5.6.170.0160.00813.98
5.6.160.0120.00414.17
5.6.150.0090.01214.29
5.6.140.0100.01314.02
5.6.130.0110.01114.21
5.6.120.0130.01014.23
5.6.110.0180.00013.96
5.6.100.0170.01214.03
5.6.90.0130.01714.05
5.6.80.0180.01213.84
5.6.70.0090.01414.14
5.6.60.0180.01214.05
5.6.50.0120.00414.11
5.6.40.0160.00714.30
5.6.30.0130.00314.08
5.6.20.0070.01813.95
5.6.10.0170.00914.05
5.6.00.0120.00814.15
5.5.380.0090.00914.07
5.5.370.0100.01014.31
5.5.360.0130.00514.43
5.5.350.0160.01314.18
5.5.340.0130.00914.20
5.5.330.0120.00314.39
5.5.320.0080.01114.25
5.5.310.0120.00614.00
5.5.300.0090.00914.41
5.5.290.0170.00914.44
5.5.280.0120.01214.23
5.5.270.0090.00914.45
5.5.260.0210.01114.26
5.5.250.0070.01014.03
5.5.240.0030.01013.91
5.5.230.0140.01914.14
5.5.220.0250.00313.94
5.5.210.0210.00613.96
5.5.200.0120.00613.79
5.5.190.0050.01113.76
5.5.180.0190.01013.84
5.5.170.0200.00714.08
5.5.160.0240.00014.00
5.5.150.0070.01013.80
5.5.140.0060.01013.92
5.5.130.0140.01114.32
5.5.120.0160.00814.28
5.5.110.0200.00314.08
5.5.100.0150.00613.89
5.5.90.0130.00314.03
5.5.80.0160.01214.18
5.5.70.0140.00913.91
5.5.60.0090.01214.07
5.5.50.0140.01014.23
5.5.40.0170.00913.98
5.5.30.0020.01314.30
5.5.20.0110.01314.31
5.5.10.0000.01414.09
5.5.00.0070.00714.28
5.4.450.0120.00610.85
5.4.440.0120.01010.98
5.4.430.0040.00910.57
5.4.420.0110.00010.82
5.4.410.0100.00510.66
5.4.400.0080.00810.38
5.4.390.0140.00310.57
5.4.380.0140.00210.73
5.4.370.0180.00010.72
5.4.360.0060.00610.68
5.4.350.0110.00010.57
5.4.340.0100.00710.66
5.4.330.0130.00310.49
5.4.320.0120.00010.72
5.4.310.0040.00810.51
5.4.300.0090.00410.84
5.4.290.0030.01310.69
5.4.280.0120.00410.87
5.4.270.0100.00010.96
5.4.260.0070.01110.65
5.4.250.0060.00610.84
5.4.240.0060.00610.75
5.4.230.0090.00310.30
5.4.220.0100.00010.62
5.4.210.0170.00010.62
5.4.200.0120.00410.44
5.4.190.0110.00010.41
5.4.180.0050.00511.00
5.4.170.0100.01310.71
5.4.160.0080.00510.70
5.4.150.0110.00710.70
5.4.140.0130.00410.68
5.4.130.0080.01010.69
5.4.120.0060.00610.76
5.4.110.0090.00310.68
5.4.100.0150.00010.73
5.4.90.0080.00610.45
5.4.80.0060.00610.75
5.4.70.0050.00810.90
5.4.60.0070.00710.89
5.4.50.0070.00710.60
5.4.40.0140.00310.93
5.4.30.0090.00910.71
5.4.20.0130.01010.95
5.4.10.0090.00610.55
5.4.00.0090.00410.58
5.3.290.0080.00410.24
5.3.280.0090.00310.26
5.3.270.0140.00010.32
5.3.260.0130.00510.33
5.3.250.0100.00310.00
5.3.240.0070.0119.88
5.3.230.0120.00810.11
5.3.220.0090.00310.20
5.3.210.0130.00310.18
5.3.200.0000.01510.18
5.3.190.0070.00710.31
5.3.180.0090.00410.20
5.3.170.0130.00010.46
5.3.160.0100.00310.38
5.3.150.0050.00810.46
5.3.140.0080.00610.30
5.3.130.0130.00010.38
5.3.120.0130.00410.29
5.3.110.0060.00610.36
5.3.100.0130.00610.32
5.3.90.0070.00510.13
5.3.80.0090.00310.13
5.3.70.0080.00410.25
5.3.60.0060.00610.33
5.3.50.0130.00310.29
5.3.40.0150.00010.25
5.3.30.0090.01310.23
5.3.20.0190.00010.21
5.3.10.0090.00310.07
5.3.00.0110.00610.05
5.2.170.0150.0049.40
5.2.160.0090.0099.43
5.2.150.0030.0069.20
5.2.140.0110.0049.30
5.2.130.0100.0059.25
5.2.120.0040.0079.01
5.2.110.0070.0009.36
5.2.100.0110.0049.25
5.2.90.0080.0089.03
5.2.80.0060.0039.30
5.2.70.0110.0059.11
5.2.60.0110.0028.89
5.2.50.0070.0079.25
5.2.40.0000.0129.23
5.2.30.0080.0049.09
5.2.20.0100.0009.13
5.2.10.0090.0049.04
5.2.00.0140.0048.72
5.1.60.0060.0048.25
5.1.50.0070.0008.27
5.1.40.0030.0108.50
5.1.30.0040.0048.55
5.1.20.0110.0048.40
5.1.10.0040.0048.45
5.1.00.0030.0038.00
5.0.50.0120.0007.96
5.0.40.0060.0037.96
5.0.30.0030.0067.96
5.0.20.0060.0067.96
5.0.10.0060.0067.96
5.0.00.0070.0007.96
4.4.90.0070.0037.96
4.4.80.0070.0037.96
4.4.70.0030.0037.96
4.4.60.0040.0007.96
4.4.50.0070.0007.96
4.4.40.0040.0007.96
4.4.30.0100.0027.96
4.4.20.0030.0077.96
4.4.10.0100.0027.96
4.4.00.0030.0037.96
4.3.110.0060.0077.96
4.3.100.0030.0037.96
4.3.90.0080.0037.96
4.3.80.0030.0097.96
4.3.70.0030.0077.96
4.3.60.0110.0007.96
4.3.50.0050.0057.96
4.3.40.0070.0027.96
4.3.30.0030.0067.96
4.3.20.0080.0037.96
4.3.10.0110.0007.96
4.3.00.0000.0077.96

preferences:
62.89 ms | 400 KiB | 5 Q