3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public function serialize () { $serialized = array(); foreach($this as $prop => $val) { $serialized[$prop] = $val; } return serialize($serialized); return serialize(get_object_vars($this)); } function unserialize($serialized) { foreach(unserialize($serialized) as $prop => $val) { $this->$prop = $val; } return true; } } class B extends A { public $A; } class C extends A { public $A; public $B; } $oC = new C(); $oC->A = new A(); $oC->B = new B(); $oC->B->A = $oC->A; echo $oC->A === $oC->B->A ? "yes" : "no", "\n"; echo serialize($oC->A) === serialize($oC->B->A) ? 'yes' : 'no', "\n"; $ser = serialize($oC); echo $ser, "\n"; $new_oC = unserialize($ser); echo $new_oC->A === $new_oC->B->A ? "yes" : "no", "\n";

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)
8.3.60.0090.00618.30
8.3.50.0120.00721.93
8.3.40.0120.00318.80
8.3.30.0110.00419.03
8.3.20.0000.00720.29
8.3.10.0040.00423.68
8.3.00.0040.00420.64
8.2.180.0070.01416.38
8.2.170.0110.00422.96
8.2.160.0130.00021.93
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0050.00322.24
8.2.110.0040.00422.14
8.2.100.0130.00017.84
8.2.90.0000.00819.12
8.2.80.0050.00318.03
8.2.70.0030.00517.63
8.2.60.0030.00617.80
8.2.50.0060.00618.07
8.2.40.0000.00719.38
8.2.30.0050.00218.07
8.2.20.0080.00017.55
8.2.10.0000.00717.67
8.2.00.0000.01017.70
8.1.280.0060.00925.92
8.1.270.0050.00323.88
8.1.260.0080.00026.35
8.1.250.0000.00828.09
8.1.240.0070.00323.82
8.1.230.0090.00319.10
8.1.220.0000.00817.74
8.1.210.0050.00318.77
8.1.200.0030.00617.35
8.1.190.0000.00817.41
8.1.180.0040.00418.10
8.1.170.0040.00418.34
8.1.160.0040.00421.96
8.1.150.0000.00718.56
8.1.140.0040.00417.32
8.1.130.0030.00617.95
8.1.120.0040.00417.45
8.1.110.0040.00417.29
8.1.100.0040.00417.39
8.1.90.0000.00717.43
8.1.80.0000.00717.42
8.1.70.0030.00317.35
8.1.60.0030.00617.54
8.1.50.0000.00817.35
8.1.40.0060.00317.49
8.1.30.0040.00417.54
8.1.20.0040.00417.55
8.1.10.0040.00417.48
8.1.00.0080.00017.55
8.0.300.0040.00418.77
8.0.290.0040.00417.18
8.0.280.0030.00318.48
8.0.270.0030.00517.21
8.0.260.0070.00016.90
8.0.250.0030.00317.10
8.0.240.0030.00317.03
8.0.230.0050.00216.98
8.0.220.0070.00016.88
8.0.210.0000.00716.82
8.0.200.0000.00716.97
8.0.190.0040.00316.87
8.0.180.0000.00816.93
8.0.170.0080.00016.91
8.0.160.0030.00516.86
8.0.150.0000.00716.80
8.0.140.0000.00816.79
8.0.130.0000.00513.33
8.0.120.0080.00016.92
8.0.110.0030.00516.94
8.0.100.0040.00417.02
8.0.90.0000.00816.89
8.0.80.0110.00516.88
8.0.70.0040.00416.93
8.0.60.0040.00416.96
8.0.50.0070.00016.80
8.0.30.0160.00717.05
8.0.20.0130.00617.40
8.0.10.0050.00317.00
8.0.00.0100.00816.79
7.4.330.0020.00215.13
7.4.320.0030.00316.48
7.4.300.0000.00616.56
7.4.290.0030.00316.53
7.4.280.0050.00316.61
7.4.270.0030.00316.57
7.4.260.0000.00716.60
7.4.250.0000.00716.52
7.4.240.0000.00716.59
7.4.230.0070.00016.64
7.4.220.0030.01416.71
7.4.210.0080.00716.61
7.4.200.0050.00316.43
7.4.190.0000.00716.75
7.4.160.0110.00516.48
7.4.150.0150.00617.40
7.4.140.0050.01617.86
7.4.130.0110.00916.60
7.4.120.0110.00816.46
7.4.110.0120.00416.62
7.4.100.0070.01016.62
7.4.90.0060.01216.48
7.4.80.0060.00916.55
7.4.70.0070.01016.50
7.4.60.0060.01116.51
7.4.50.0060.00316.64
7.4.40.0030.01022.77
7.4.30.0100.00716.45
7.4.10.0030.01415.08
7.4.00.0080.00815.04
7.3.330.0000.00613.42
7.3.320.0000.00513.14
7.3.310.0000.00716.30
7.3.300.0030.00316.35
7.3.290.0030.01016.34
7.3.280.0100.00716.33
7.3.270.0140.00317.40
7.3.260.0140.00516.54
7.3.250.0150.00716.40
7.3.240.0090.00916.54
7.3.230.0100.00716.51
7.3.210.0120.00916.46
7.3.200.0110.01119.39
7.3.190.0090.01216.42
7.3.180.0030.01216.54
7.3.170.0090.00616.63
7.3.160.0140.00316.53
7.3.130.0040.01114.90
7.3.120.0040.01114.78
7.3.110.0090.00914.91
7.3.100.0070.00815.01
7.3.90.0070.00914.73
7.3.80.0100.00315.03
7.3.70.0100.00814.83
7.3.60.0040.01114.95
7.3.50.0060.00314.95
7.3.40.0060.00514.53
7.3.30.0090.00314.76
7.3.20.0030.00716.71
7.3.10.0030.01216.68
7.3.00.0090.00616.65
7.2.330.0130.01016.46
7.2.320.0130.01016.88
7.2.310.0120.00616.83
7.2.300.0120.00616.75
7.2.290.0110.01316.82
7.2.260.0070.01115.33
7.2.250.0090.00815.18
7.2.240.0080.01015.01
7.2.230.0060.00814.85
7.2.220.0050.01015.03
7.2.210.0050.01014.99
7.2.200.0090.00814.98
7.2.190.0050.01215.12
7.2.180.0070.00814.99
7.2.170.0020.01515.03
7.2.160.0030.00715.05
7.2.150.0000.01216.86
7.2.140.0080.00416.57
7.2.130.0000.01416.96
7.2.120.0060.00616.82
7.2.110.0060.01216.92
7.2.100.0080.00816.84
7.2.90.0060.00916.69
7.2.80.0090.00716.60
7.2.70.0260.00516.96
7.2.60.0110.00516.85
7.2.50.0090.00716.86
7.2.40.0110.00416.73
7.2.30.0130.00917.04
7.2.20.0190.00616.76
7.2.10.0120.00216.73
7.2.00.0080.00817.60
7.1.330.0120.00315.73
7.1.320.0050.00815.72
7.1.310.0080.00515.56
7.1.300.0060.01115.80
7.1.290.0060.00715.78
7.1.280.0020.01315.71
7.1.270.0070.00915.76
7.1.260.0090.00415.72
7.1.250.0060.00615.41
7.1.240.0060.00615.57
7.1.230.0040.01215.68
7.1.220.0490.00615.71
7.1.210.0090.00715.84
7.1.200.0060.01115.84
7.1.190.0230.00515.81
7.1.180.0050.00815.56
7.1.170.0170.00515.58
7.1.160.0080.00715.64
7.1.150.0080.00615.84
7.1.140.0070.00715.80
7.1.130.0170.00915.79
7.1.120.0060.00615.68
7.1.110.0050.01215.74
7.1.100.0080.00616.45
7.1.90.0090.00615.54
7.1.80.0110.00415.64
7.1.70.0070.00416.20
7.1.60.0100.00916.95
7.1.50.0080.00716.22
7.1.40.0080.00815.78
7.1.30.0070.00915.83
7.1.20.0090.00915.93
7.1.10.0110.00115.57
7.1.00.0060.02918.04
7.0.330.0030.00715.40
7.0.320.0040.00415.32
7.0.310.0040.00815.29
7.0.300.0110.00115.31
7.0.290.0130.00215.44
7.0.280.0040.01015.43
7.0.270.0090.00615.43
7.0.260.0040.00915.47
7.0.250.0090.00915.45
7.0.240.0060.00815.51
7.0.230.0060.01015.42
7.0.220.0080.00715.45
7.0.210.0040.01015.53
7.0.200.0070.00615.88
7.0.190.0070.01015.50
7.0.180.0050.00615.32
7.0.170.0020.01015.45
7.0.160.0070.00715.36
7.0.150.0080.00515.37
7.0.140.0030.03017.63
7.0.130.0060.00915.56
7.0.120.0060.00915.23
7.0.110.0090.00715.36
7.0.100.0190.02016.94
7.0.90.0070.03216.92
7.0.80.0090.03216.92
7.0.70.0030.02816.91
7.0.60.0040.02916.82
7.0.50.0080.03117.15
7.0.40.0080.03015.63
7.0.30.0070.03215.64
7.0.20.0060.03315.63
7.0.10.0030.02715.67
7.0.00.0080.02715.71
5.6.400.0100.00314.25
5.6.390.0090.00614.34
5.6.380.0090.00314.30
5.6.370.0090.00514.49
5.6.360.0090.00614.50
5.6.350.0100.00514.29
5.6.340.0130.00314.34
5.6.330.0060.01014.50
5.6.320.0100.00414.66
5.6.310.0080.00814.45
5.6.300.0030.00814.59
5.6.290.0030.01114.42
5.6.280.0050.03016.57
5.6.270.0060.00814.43
5.6.260.0100.00514.30
5.6.250.0070.03016.47
5.6.240.0070.03016.58
5.6.230.0070.02716.56
5.6.220.0060.03016.38
5.6.210.0070.02016.56
5.6.200.0080.02816.61
5.6.190.0050.02916.54
5.6.180.0090.02916.69
5.6.170.0070.02916.67
5.6.160.0080.01616.46
5.6.150.0080.03216.66
5.6.140.0070.01616.80
5.6.130.0100.02616.60
5.6.120.0100.03116.52
5.6.110.0060.03016.67
5.6.100.0050.03116.62
5.6.90.0120.02616.45
5.6.80.0070.02916.36
5.6.70.0080.02816.32
5.6.60.0080.02616.46
5.6.50.0080.02916.29
5.6.40.0120.02816.28
5.6.30.0070.02816.17
5.6.20.0070.03116.24
5.6.10.0110.02616.38
5.6.00.0100.01416.33
5.5.380.0110.02415.93
5.5.370.0100.02815.80
5.5.360.0130.02615.80
5.5.350.0030.03415.97
5.5.340.0080.02516.09
5.5.330.0060.03115.96
5.5.320.0060.03316.02
5.5.310.0010.03215.98
5.5.300.0070.03116.05
5.5.290.0090.02816.03
5.5.280.0070.01816.06
5.5.270.0050.01815.95
5.5.260.0090.01815.92
5.5.250.0110.02516.01
5.5.240.0070.02915.77
5.5.230.0070.02915.80
5.5.220.0080.02715.80
5.5.210.0020.02315.77
5.5.200.0100.02515.70
5.5.190.0080.02915.72
5.5.180.0040.02115.73
5.5.170.0030.01014.04
5.5.160.0090.02615.76
5.5.150.0110.02715.74
5.5.140.0160.02215.59
5.5.130.0070.02815.74
5.5.120.0080.01915.66
5.5.110.0100.03015.61
5.5.100.0080.01815.75
5.5.90.0040.02415.74
5.5.80.0100.02715.73
5.5.70.0080.03015.68
5.5.60.0060.02515.78
5.5.50.0070.02915.76
5.5.40.0080.02715.63
5.5.30.0090.01715.72
5.5.20.0110.02615.66
5.5.10.0080.02715.72
5.5.00.0050.02915.58
5.4.450.0050.01614.27
5.4.440.0040.03214.44
5.4.430.0090.02714.42
5.4.420.0100.02314.44
5.4.410.0070.01714.44
5.4.400.0080.03014.32
5.4.390.0040.03014.34
5.4.380.0060.02314.34
5.4.370.0090.01614.19
5.4.360.0060.02614.33
5.4.350.0070.02514.22
5.4.340.0080.02614.23
5.4.330.0040.00611.96
5.4.320.0070.02214.24
5.4.310.0050.02714.22
5.4.300.0060.02814.22
5.4.290.0070.03214.29
5.4.280.0070.01814.28
5.4.270.0070.01714.20
5.4.260.0070.02414.31
5.4.250.0090.01414.37
5.4.240.0010.03414.27
5.4.230.0060.02614.27
5.4.220.0090.01814.25
5.4.210.0090.02614.22
5.4.200.0070.03314.39
5.4.190.0080.02714.15
5.4.180.0100.02014.37
5.4.170.0070.02914.21
5.4.160.0100.02614.23
5.4.150.0100.02214.32
5.4.140.0020.02813.42
5.4.130.0050.02813.36
5.4.120.0030.02613.38
5.4.110.0090.02513.34
5.4.100.0050.02113.62
5.4.90.0110.02213.35
5.4.80.0080.01813.29
5.4.70.0040.02913.36
5.4.60.0030.02813.52
5.4.50.0030.02713.47
5.4.40.0100.02513.47
5.4.30.0050.02013.52
5.4.20.0080.01413.44
5.4.10.0090.02713.35
5.4.00.0090.02513.25
5.3.290.0070.03012.74
5.3.280.0030.03112.71
5.3.270.0080.02612.73
5.3.260.0080.02712.71
5.3.250.0080.02812.71
5.3.240.0080.01712.69
5.3.230.0070.02612.70
5.3.220.0050.02812.67
5.3.210.0030.03212.71
5.3.200.0070.02712.70
5.3.190.0050.01812.67
5.3.180.0060.02412.70
5.3.170.0080.02412.66
5.3.160.0050.02112.68
5.3.150.0060.02912.65
5.3.140.0060.02512.67
5.3.130.0080.02512.66
5.3.120.0070.02112.71
5.3.110.0120.02112.67
5.3.100.0080.02512.56
5.3.90.0040.02712.49
5.3.80.0070.02712.49
5.3.70.0040.02012.49
5.3.60.0090.02312.51
5.3.50.0090.02512.49
5.3.40.0070.02612.49
5.3.30.0060.01712.48
5.3.20.0070.02612.41
5.3.10.0070.02712.39
5.3.00.0070.02612.40
5.2.170.0080.03211.99
5.2.160.0070.03112.03
5.2.150.0080.03111.89
5.2.140.0040.03211.97
5.2.130.0100.02611.92
5.2.120.0040.02811.93
5.2.110.0030.03311.89
5.2.100.0090.03011.91
5.2.90.0050.03112.01
5.2.80.0070.02012.01
5.2.70.0050.01812.01
5.2.60.0090.03111.98
5.2.50.0100.01711.94
5.2.40.0070.02511.96
5.2.30.0000.03911.96
5.2.20.0080.03011.93
5.2.10.0060.02911.91
5.2.00.0020.02211.73
5.1.60.0050.02711.41
5.1.50.0040.02611.35
5.1.40.0060.02211.31
5.1.30.0080.02511.64
5.1.20.0080.02711.56
5.1.10.0040.02911.46
5.1.00.0070.01711.47
5.0.50.0060.01810.81
5.0.40.0060.02210.81
5.0.30.0060.03210.81
5.0.20.0070.01210.81
5.0.10.0060.02110.81
5.0.00.0030.02610.81
4.4.90.0030.01510.81
4.4.80.0020.01910.81
4.4.70.0060.01310.81
4.4.60.0070.01210.81
4.4.50.0050.01710.81
4.4.40.0030.02210.81
4.4.30.0010.01310.81
4.4.20.0050.01910.81
4.4.10.0020.01710.81
4.4.00.0070.02510.81
4.3.110.0040.01410.81
4.3.100.0060.01610.81
4.3.90.0000.02110.81
4.3.80.0020.03010.81
4.3.70.0050.01410.81
4.3.60.0020.01510.81
4.3.50.0000.01310.81
4.3.40.0060.02410.81
4.3.30.0020.01410.81
4.3.20.0040.01810.81
4.3.10.0030.02010.81
4.3.00.0050.01710.81

preferences:
68.09 ms | 401 KiB | 5 Q