3v4l.org

run code in 300+ PHP versions simultaneously
<?php class RefMef { private $_; public function __construct($ref) { $this->_ = $ref; } } class RoleStorage extends SPLObjectStorage { private $membres; public function serialize() { return parent::serialize(); } public function unserialize($serialized) { var_dump($serialized); parent::unserialize($serialized); } } $obj1 = new RefMef(1); $obj2 = new RefMef($obj1); $test = new RoleStorage; // $test->attach($obj2); // $test->attach($obj1); // $test->attach($test); echo $ser = serialize($test), "\n"; $try = unserialize($ser); // $test = unserialize('C:11:"RoleStorage":23:{x:i:1;N;,r:13;;m:a:0:{}}');

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)
8.3.60.0110.00418.43
8.3.50.0120.00621.99
8.3.40.0060.01018.82
8.3.30.0040.01118.71
8.3.20.0000.00818.77
8.3.10.0040.00420.61
8.3.00.0000.01017.63
8.2.180.0090.00616.63
8.2.170.0120.00322.96
8.2.160.0070.00722.17
8.2.150.0050.00224.18
8.2.140.0080.00024.66
8.2.130.0060.00326.16
8.2.120.0000.00719.83
8.2.110.0060.00322.21
8.2.100.0030.01217.84
8.2.90.0050.00319.28
8.2.80.0050.00317.97
8.2.70.0040.00417.38
8.2.60.0000.00918.04
8.2.50.0000.00818.07
8.2.40.0070.00018.28
8.2.30.0050.00319.90
8.2.20.0050.00317.71
8.2.10.0000.00817.64
8.2.00.0040.00417.63
8.1.280.0130.00325.92
8.1.270.0050.00223.99
8.1.260.0000.00726.35
8.1.250.0060.00328.09
8.1.240.0090.00317.35
8.1.230.0110.00317.48
8.1.220.0080.00018.77
8.1.210.0030.00518.77
8.1.200.0090.00017.35
8.1.190.0000.00917.53
8.1.180.0040.00418.10
8.1.170.0000.00818.70
8.1.160.0020.00518.85
8.1.150.0070.00018.55
8.1.140.0000.00917.37
8.1.130.0080.00017.79
8.1.120.0000.00717.41
8.1.110.0040.00417.36
8.1.100.0070.00017.40
8.1.90.0050.00317.29
8.1.80.0040.00417.45
8.1.70.0030.00617.38
8.1.60.0050.00317.56
8.1.50.0080.00017.46
8.1.40.0030.00517.50
8.1.30.0070.00017.69
8.1.20.0050.00317.66
8.1.10.0040.00417.61
8.1.00.0040.00417.54
8.0.300.0060.00320.04
8.0.290.0050.00216.75
8.0.280.0000.00718.45
8.0.270.0030.00317.19
8.0.260.0030.00516.95
8.0.250.0020.00517.02
8.0.240.0080.00316.92
8.0.230.0040.00416.95
8.0.220.0000.00716.84
8.0.210.0040.00416.82
8.0.200.0030.00317.01
8.0.190.0040.00416.84
8.0.180.0030.00616.95
8.0.170.0040.00416.87
8.0.160.0000.00716.91
8.0.150.0070.00316.81
8.0.140.0050.00316.91
8.0.130.0000.00513.33
8.0.120.0030.00516.74
8.0.110.0030.00517.02
8.0.100.0030.00516.94
8.0.90.0000.00716.90
8.0.80.0100.00716.88
8.0.70.0000.00816.86
8.0.60.0080.00016.98
8.0.50.0040.00416.78
8.0.30.0110.01316.81
8.0.20.0070.01217.40
8.0.10.0040.00417.05
8.0.00.0150.00816.80
7.4.330.0050.00014.77
7.4.320.0030.00316.51
7.4.300.0030.00316.52
7.4.290.0040.00416.43
7.4.280.0050.00216.61
7.4.270.0040.00416.54
7.4.260.0000.00513.35
7.4.250.0050.00316.64
7.4.240.0000.00716.53
7.4.230.0030.00316.60
7.4.220.0100.01716.59
7.4.210.0040.01016.48
7.4.200.0030.00316.42
7.4.190.0050.00216.71
7.4.160.0110.00516.73
7.4.150.0080.00817.40
7.4.140.0080.01017.15
7.4.130.0090.01016.46
7.4.120.0100.00716.47
7.4.110.0090.00916.59
7.4.100.0150.00616.70
7.4.90.0070.01316.47
7.4.80.0100.00719.03
7.4.70.0040.01516.38
7.4.60.0030.01316.54
7.4.50.0030.00316.68
7.4.40.0090.00622.27
7.4.30.0090.00916.63
7.4.00.0060.00614.90
7.3.330.0050.00013.27
7.3.320.0030.00313.04
7.3.310.0030.00316.09
7.3.300.0070.00016.26
7.3.290.0070.00716.26
7.3.280.0070.01016.23
7.3.270.0140.00317.40
7.3.260.0190.00218.24
7.3.250.0110.02016.43
7.3.240.0050.01116.39
7.3.230.0000.01716.42
7.3.210.0130.00916.41
7.3.200.0030.01519.39
7.3.190.0160.00616.51
7.3.180.0110.00516.37
7.3.170.0140.00616.27
7.3.160.0080.00816.46
7.3.120.0070.01014.68
7.2.330.0080.01116.51
7.2.320.0160.00316.42
7.2.310.0030.01716.80
7.2.300.0070.01016.63
7.2.290.0070.01116.79
7.2.60.0060.01016.07
7.2.00.0070.00719.63
7.1.200.0070.00315.92
7.1.100.0080.00818.11
7.1.70.0040.00416.84
7.1.60.0150.00419.40
7.1.50.0110.01116.75
7.1.00.0000.06022.31
7.0.200.0000.01116.59
7.0.140.0070.03021.96
7.0.60.0030.04019.90
7.0.50.0030.08317.90
7.0.40.0170.08017.76
7.0.30.0100.07717.86
7.0.20.0030.08717.79
7.0.10.0030.08017.85
7.0.00.0070.05017.84
5.6.280.0000.07320.79
5.6.210.0100.08320.71
5.6.200.0130.06718.26
5.6.190.0030.08318.18
5.6.180.0070.04018.23
5.6.170.0100.03718.16
5.6.160.0070.04718.13
5.6.150.0100.07718.15
5.6.140.0030.06018.19
5.6.130.0030.05718.28
5.6.120.0000.07018.29
5.6.110.0070.07718.29
5.6.100.0130.07318.18
5.6.90.0200.04018.16
5.6.80.0030.04317.57
5.6.70.0030.04017.66
5.6.60.0100.04317.59
5.6.50.0100.07017.63
5.6.40.0070.03717.54
5.6.30.0170.03717.59
5.6.20.0070.04017.53
5.6.10.0030.04017.50
5.6.00.0000.04017.55
5.5.350.0270.03720.43
5.5.340.0030.08718.07
5.5.330.0070.08317.96
5.5.320.0070.07317.96
5.5.310.0130.04717.98
5.5.300.0170.04318.03
5.5.290.0100.04317.97
5.5.280.0130.07018.08
5.5.270.0170.06717.95
5.5.260.0070.09017.98
5.5.250.0070.08317.75
5.5.240.0170.06717.37
5.5.230.0030.04017.45
5.5.220.0070.07717.37
5.5.210.0130.06017.35
5.5.200.0300.02717.31
5.5.190.0030.06317.34
5.5.180.0100.04017.34
5.5.160.0000.04017.37
5.5.150.0070.03317.30
5.5.140.0030.04017.41
5.5.130.0000.04717.48
5.5.120.0070.03317.42
5.5.110.0070.07017.32
5.5.100.0030.04317.19
5.5.90.0070.03317.18
5.5.80.0130.02717.33
5.5.70.0000.04017.32
5.5.60.0070.03017.17
5.5.50.0070.03317.20
5.5.40.0070.03317.18
5.5.30.0030.03717.31
5.5.20.0030.03717.21
5.5.10.0070.03317.31
5.5.00.0100.03317.30
5.4.450.0070.06719.45
5.4.440.0100.04319.62
5.4.430.0100.07319.46
5.4.420.0000.05719.38
5.4.410.0170.06719.21
5.4.400.0030.04718.96
5.4.390.0030.04019.10
5.4.380.0030.03718.88
5.4.370.0130.07019.13
5.4.360.0070.07719.00
5.4.350.0170.06718.95
5.4.340.0030.04019.03
5.4.320.0100.04019.05
5.4.310.0000.04018.88
5.4.300.0000.04019.12
5.4.290.0000.04019.05
5.4.280.0030.04019.12
5.4.270.0030.04318.89
5.4.260.0030.04319.09
5.4.250.0070.03318.95
5.4.240.0030.04719.14
5.4.230.0000.04019.00
5.4.220.0030.04018.95
5.4.210.0100.03719.13
5.4.200.0070.03318.98
5.4.190.0030.03718.87
5.4.180.0030.03718.99
5.4.170.0030.03718.88
5.4.160.0000.04318.99
5.4.150.0030.03719.01
5.4.140.0000.04016.37
5.4.130.0070.03716.40
5.4.120.0030.03316.36
5.4.110.0030.03316.64
5.4.100.0030.04716.54
5.4.90.0070.03316.46
5.4.80.0070.05316.41
5.4.70.0030.07016.48
5.4.60.0030.07716.53
5.4.50.0070.03316.38
5.4.40.0000.07716.50
5.4.30.0070.05716.37
5.4.20.0030.07716.44
5.4.10.0070.07716.40
5.4.00.0130.03716.02
5.3.290.0030.03714.71
5.3.280.0030.03714.59
5.3.270.0030.03714.84
5.3.260.0070.03314.57
5.3.250.0030.03714.62
5.3.240.0030.03714.65
5.3.230.0070.04714.67
5.3.220.0000.04014.59
5.3.210.0000.04014.55
5.3.200.0070.03714.55
5.3.190.0000.04314.64
5.3.180.0100.07714.59
5.3.170.0030.03714.53
5.3.160.0030.04714.63
5.3.150.0100.07314.60
5.3.140.0070.08014.61
5.3.130.0000.07314.64
5.3.120.0100.04314.61
5.3.110.0030.06014.58
5.3.100.0070.07314.15
5.3.90.0070.04714.13
5.3.80.0000.04314.07
5.3.70.0070.06714.06
5.3.60.0000.08014.06
5.3.50.0070.07713.86
5.3.40.0100.03013.98
5.3.30.0000.08313.83
5.3.20.0070.06313.60
5.3.10.0070.07013.70
5.3.00.0000.07713.64
5.2.170.0070.03011.21
5.2.160.0000.03311.16
5.2.150.0070.02711.05
5.2.140.0030.05711.18
5.2.130.0000.05311.09
5.2.120.0100.05711.01
5.2.110.0130.05711.13
5.2.100.0170.04311.14
5.2.90.0100.05711.11
5.2.80.0070.06011.16
5.2.70.0000.07010.95
5.2.60.0030.05311.11
5.2.50.0030.06311.00
5.2.40.0000.03711.06
5.2.30.0000.04011.05
5.2.20.0030.06311.02
5.2.10.0030.03710.94
5.2.00.0030.02710.82
5.1.60.0030.0279.96
5.1.50.0000.03310.01
5.1.40.0070.0539.85
5.1.30.0000.06010.34
5.1.20.0030.05710.58
5.1.10.0070.05310.16
5.1.00.0000.06010.07
5.0.50.0030.0278.76
5.0.40.0030.0208.42
5.0.30.0030.0378.32
5.0.20.0000.0208.20
5.0.10.0030.0338.25
5.0.00.0030.0408.37
4.4.90.0000.0377.66
4.4.80.0030.0377.66
4.4.70.0070.0337.66
4.4.60.0000.0277.66
4.4.50.0000.0237.66
4.4.40.0000.0307.66
4.4.30.0000.0207.66
4.4.20.0030.0377.66
4.4.10.0000.0337.66
4.4.00.0000.0307.66
4.3.110.0030.0237.66
4.3.100.0030.0137.66
4.3.90.0100.0237.66
4.3.80.0000.0537.66
4.3.70.0070.0307.66
4.3.60.0000.0377.66
4.3.50.0000.0277.66
4.3.40.0130.0407.66
4.3.30.0030.0377.66
4.3.20.0000.0377.66
4.3.10.0000.0237.66
4.3.00.0030.0307.66

preferences:
48.03 ms | 401 KiB | 5 Q