3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A implements Serializable{ protected $_a = 'Aze'; function serialize(){ return serialize(array('a' => $this->_a)); } function unserialize($s){ $d = unserialize($s); $_a = $d['a']; } } $a = new A(); $s = serialize($a); var_dump($s); $b = unserialize($b); var_dump($b);

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)
8.3.60.0090.01318.43
8.3.50.0120.00621.27
8.3.40.0110.00418.90
8.3.30.0070.00718.90
8.3.20.0040.00420.29
8.3.10.0080.00022.05
8.3.00.0030.00522.52
8.2.180.0150.00016.75
8.2.170.0100.00722.96
8.2.160.0120.00319.20
8.2.150.0060.00324.18
8.2.140.0000.00824.66
8.2.130.0070.00726.16
8.2.120.0060.00319.23
8.2.110.0170.00322.27
8.2.100.0100.00319.76
8.2.90.0040.00419.19
8.2.80.0000.00917.97
8.2.70.0060.00317.61
8.2.60.0000.00817.93
8.2.50.0000.00818.07
8.2.40.0000.00818.22
8.2.30.0050.00218.14
8.2.20.0040.00417.73
8.2.10.0000.01017.70
8.2.00.0030.00617.70
8.1.280.0140.00725.92
8.1.270.0050.00322.02
8.1.260.0000.00826.35
8.1.250.0030.00528.09
8.1.240.0060.00323.84
8.1.230.0110.00018.82
8.1.220.0000.00817.76
8.1.210.0030.00618.77
8.1.200.0060.00317.35
8.1.190.0060.00317.64
8.1.180.0090.00020.54
8.1.170.0040.00718.42
8.1.160.0050.00322.14
8.1.150.0080.00018.65
8.1.140.0070.00017.46
8.1.130.0070.00017.75
8.1.120.0040.00417.42
8.1.110.0040.00417.36
8.1.100.0040.00417.48
8.1.90.0000.00717.48
8.1.80.0050.00217.50
8.1.70.0000.00817.48
8.1.60.0040.00417.45
8.1.50.0040.00417.50
8.1.40.0040.00417.44
8.1.30.0000.00917.70
8.1.20.0050.00517.61
8.1.10.0000.00717.39
8.1.00.0040.00417.43
8.0.300.0040.00418.77
8.0.290.0070.00017.16
8.0.280.0000.00818.51
8.0.270.0070.00017.21
8.0.260.0030.00316.95
8.0.250.0040.00417.04
8.0.240.0100.00017.07
8.0.230.0000.00717.04
8.0.220.0040.00416.92
8.0.210.0020.00516.80
8.0.200.0070.00016.90
8.0.190.0040.00417.04
8.0.180.0000.00717.00
8.0.170.0000.00917.01
8.0.160.0040.00416.98
8.0.150.0040.00416.96
8.0.140.0030.00616.93
8.0.130.0060.00013.35
8.0.120.0050.00316.86
8.0.110.0000.00916.93
8.0.100.0000.00816.78
8.0.90.0040.00417.03
8.0.80.0100.01017.02
8.0.70.0070.00016.96
8.0.60.0050.00216.93
8.0.50.0000.00817.00
8.0.30.0120.01016.98
8.0.20.0070.01117.40
8.0.10.0000.00817.06
8.0.00.0080.01116.85
7.4.330.0030.00315.00
7.4.320.0030.00316.66
7.4.300.0000.00616.38
7.4.290.0000.00716.52
7.4.280.0050.00316.66
7.4.270.0030.00316.51
7.4.260.0030.00316.61
7.4.250.0040.00416.47
7.4.240.0030.00316.54
7.4.230.0030.00416.61
7.4.220.0070.01116.73
7.4.210.0070.00916.62
7.4.200.0070.00016.36
7.4.190.0030.00316.52
7.4.160.0030.01316.53
7.4.150.0060.00917.40
7.4.140.0080.00817.86
7.4.130.0110.00616.43
7.4.120.0130.01016.61
7.4.110.0160.00716.49
7.4.100.0070.01516.36
7.4.90.0110.00616.59
7.4.80.0070.01019.39
7.4.70.0000.01616.46
7.4.60.0030.01316.45
7.4.50.0050.00316.64
7.4.40.0030.01022.77
7.4.30.0130.00316.57
7.4.00.0020.01414.99
7.3.330.0030.00313.23
7.3.320.0000.00613.36
7.3.310.0050.00216.32
7.3.300.0030.00316.23
7.3.290.0030.01316.38
7.3.280.0050.01216.36
7.3.270.0170.00717.40
7.3.260.0160.00616.35
7.3.250.0050.01416.24
7.3.240.0140.00416.55
7.3.230.0130.00716.56
7.3.210.0120.00616.41
7.3.200.0160.00519.39
7.3.190.0090.00916.48
7.3.180.0120.00616.42
7.3.170.0150.00716.59
7.3.160.0060.01016.63
7.3.120.0090.00614.85
7.3.110.0110.00714.51
7.3.100.0090.00614.83
7.3.90.0040.00715.00
7.3.80.0090.00014.73
7.3.70.0070.00714.80
7.3.60.0040.01114.91
7.3.50.0090.00614.80
7.3.40.0060.00314.91
7.3.30.0040.00414.55
7.3.20.0060.00916.86
7.3.10.0100.00616.74
7.3.00.0030.01216.63
7.2.330.0030.01516.52
7.2.320.0070.01016.63
7.2.310.0120.01216.50
7.2.300.0120.00916.64
7.2.290.0100.00716.63
7.2.250.0000.01815.20
7.2.240.0070.01414.94
7.2.230.0030.01315.20
7.2.220.0070.00714.90
7.2.210.0110.00315.20
7.2.200.0030.00614.59
7.2.190.0110.00715.01
7.2.180.0060.00914.98
7.2.170.0030.00614.91
7.1.330.0070.00315.84
7.1.320.0030.01015.57
7.1.310.0030.01315.57
7.1.300.0130.00315.72
7.1.290.0030.00615.65
7.1.280.0030.00615.73
7.1.270.0090.00615.70
7.1.260.0070.00715.87
7.1.100.0030.00917.75
7.1.70.0060.00617.07
7.1.60.0030.01319.82
7.1.50.0070.01816.99
7.1.00.0100.04722.29
7.0.200.0000.00716.82
7.0.140.0070.07021.92
7.0.60.0200.07319.95
7.0.50.0000.05317.88
7.0.40.0030.07720.40
7.0.30.0370.06020.23
7.0.20.0400.06320.21
7.0.10.0170.08720.06
7.0.00.0030.04320.08
5.6.280.0130.06320.92
5.6.210.0030.04020.65
5.6.200.0070.08018.21
5.6.190.0070.07320.48
5.6.180.4130.03720.61
5.6.170.0200.05020.48
5.6.160.0130.07320.52
5.6.150.0070.04018.15
5.6.140.0070.08018.23
5.6.130.0130.04318.21
5.6.120.0100.08321.15
5.6.110.0130.07720.95
5.6.100.0100.03721.00
5.6.90.0100.08020.99
5.6.80.0130.07320.38
5.6.70.0130.06720.50
5.5.350.0070.08020.39
5.5.340.0070.03718.08
5.5.330.0100.06320.13
5.5.320.0200.08720.34
5.5.310.0270.07320.41
5.5.300.0070.04017.95
5.5.290.0000.04717.95
5.5.280.0100.06720.74
5.5.270.0070.04320.76
5.5.260.0030.07720.96
5.5.250.0100.07720.59
5.5.240.0030.04020.38
5.4.450.0600.05719.58
5.4.440.0570.05719.58
5.4.430.0470.06719.35
5.4.420.0130.05319.30
5.4.410.0230.04319.09
5.4.400.0200.06018.83
5.4.390.0370.05718.79
5.4.380.0300.05018.83
5.4.370.0100.05718.56
5.4.360.0170.05018.59
5.4.350.0070.06318.80
5.4.340.0170.05018.80
5.4.320.0060.03612.50
5.4.310.0040.04412.50
5.4.300.0060.04212.50
5.4.290.0070.04312.50
5.4.280.0100.04112.39
5.4.270.0090.04812.40
5.4.260.0170.06319.10
5.4.250.0070.06718.74
5.4.240.0070.05718.65
5.4.230.0270.05018.82
5.4.220.0070.08318.95
5.4.210.0200.06718.96
5.4.200.0200.06018.64
5.4.190.0100.08019.02
5.4.180.0170.06719.02
5.4.170.0070.06318.93
5.4.160.0130.07018.99
5.4.150.0170.07018.79
5.4.140.0100.06016.44
5.4.130.0170.04316.55
5.4.120.0100.06716.53
5.4.110.0170.05716.48
5.4.100.0000.07716.65
5.4.90.0100.07016.36
5.4.80.0000.05316.63
5.4.70.0070.05016.54
5.4.60.0000.08316.50
5.4.50.0100.04716.38
5.4.40.0130.06316.54
5.4.30.0030.05316.53
5.4.20.0030.05716.46
5.4.10.0100.05016.59
5.4.00.0000.06015.82
5.3.290.0090.04212.80
5.3.280.0170.05014.82
5.3.270.0100.07014.63
5.3.260.0070.06014.77
5.3.250.0100.06314.83
5.3.240.0030.08014.58
5.3.230.0100.07314.69
5.3.220.0070.07714.55
5.3.210.0130.07014.73
5.3.200.0130.06714.64
5.3.190.0100.07314.75
5.3.180.0130.06314.65
5.3.170.0070.05014.73
5.3.160.0100.07014.65
5.3.150.0170.04314.55
5.3.140.0130.05714.63
5.3.130.0000.05714.57
5.3.120.0030.06014.46
5.3.110.0100.05314.71
5.3.100.0100.04714.07
5.3.90.0070.04713.92
5.3.80.0000.06314.11
5.3.70.0130.04313.85
5.3.60.0100.04714.17
5.3.50.0170.04313.94
5.3.40.0200.04714.05
5.3.30.0100.04313.99
5.3.20.0070.05713.78
5.3.10.0030.05713.72
5.3.00.0070.05313.64
5.2.170.0100.05711.12
5.2.160.0070.04711.24
5.2.150.0070.04311.23
5.2.140.0030.05011.31
5.2.130.0000.05011.08
5.2.120.0000.04311.07
5.2.110.0100.03311.07
5.2.100.0070.04311.19
5.2.90.0030.05011.06
5.2.80.0100.05311.10
5.2.70.0030.04311.17
5.2.60.0070.04311.01
5.2.50.0030.04011.24
5.2.40.0100.04711.07
5.2.30.0130.03310.81
5.2.20.0130.03311.18
5.2.10.0100.04310.84
5.2.00.0100.05010.70
5.1.60.0030.03310.09
5.1.50.0000.0409.96
5.1.40.0000.0439.82
5.1.30.0100.04310.32
5.1.20.0070.03310.58
5.1.10.0130.0379.98
5.1.00.0000.04010.07
5.0.50.0070.0338.62
5.0.40.0030.0278.50
5.0.30.0030.0538.30
5.0.20.0030.0278.26
5.0.10.0070.0238.22
5.0.00.0070.0408.00
4.4.90.0130.0177.47
4.4.80.0000.0237.47
4.4.70.0130.0177.47
4.4.60.0000.0237.47
4.4.50.0070.0177.47
4.4.40.0000.0407.47
4.4.30.0070.0207.47
4.4.20.0030.0277.47
4.4.10.0070.0177.47
4.4.00.0030.0377.47
4.3.110.0030.0307.47
4.3.100.0000.0277.47
4.3.90.0030.0207.47
4.3.80.0070.0307.47
4.3.70.0030.0207.47
4.3.60.0030.0277.47
4.3.50.0100.0137.47
4.3.40.0030.0307.47
4.3.30.0000.0277.47
4.3.20.0030.0207.47
4.3.10.0000.0237.47
4.3.00.0170.0136.85

preferences:
60.13 ms | 401 KiB | 5 Q