3v4l.org

run code in 300+ PHP versions simultaneously
<?php class c1 { public $a = 1; public $b = 2; } class c2 implements Serializable { public function serialize() { return 'test'; } public function unserialize($str) {} } $o1 = new c1; $o2 = new c2; echo serialize($o1) . "\n"; echo serialize($o2) . "\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)
8.3.60.0130.00716.63
8.3.50.0130.00716.62
8.3.40.0060.00918.89
8.3.30.0120.00918.67
8.3.20.0000.00818.38
8.3.10.0060.00320.53
8.3.00.0000.00819.38
8.2.180.0070.00718.41
8.2.170.0110.00422.96
8.2.160.0000.01520.45
8.2.150.0100.00024.18
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0040.00419.76
8.2.110.0060.00320.95
8.2.100.0080.00317.91
8.2.90.0000.01019.16
8.2.80.0000.00817.93
8.2.70.0040.00417.63
8.2.60.0060.00617.80
8.2.50.0030.00618.07
8.2.40.0040.00418.22
8.2.30.0070.00418.07
8.2.20.0060.00317.67
8.2.10.0040.00417.59
8.2.00.0100.00017.74
8.1.280.0150.00025.92
8.1.270.0050.00224.66
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0090.00020.55
8.1.230.0060.00620.91
8.1.220.0050.00317.78
8.1.210.0090.00018.86
8.1.200.0060.00317.23
8.1.190.0000.00817.43
8.1.180.0040.00418.10
8.1.170.0000.00718.84
8.1.160.0040.00418.88
8.1.150.0040.00418.68
8.1.140.0040.00417.45
8.1.130.0000.00717.75
8.1.120.0050.00217.44
8.1.110.0050.00317.39
8.1.100.0070.00017.34
8.1.90.0000.00717.46
8.1.80.0040.00417.36
8.1.70.0000.00717.50
8.1.60.0080.00017.47
8.1.50.0040.00417.47
8.1.40.0050.00317.55
8.1.30.0000.00717.48
8.1.20.0000.00817.50
8.1.10.0040.00417.51
8.1.00.0030.00517.39
8.0.300.0020.00519.94
8.0.290.0080.00016.63
8.0.280.0000.00718.32
8.0.270.0030.00317.22
8.0.260.0000.00616.82
8.0.250.0000.00716.96
8.0.240.0050.00216.83
8.0.230.0000.00717.00
8.0.220.0040.00416.76
8.0.210.0030.00316.88
8.0.200.0030.00317.00
8.0.190.0000.00717.00
8.0.180.0000.00716.98
8.0.170.0060.00316.90
8.0.160.0030.00317.00
8.0.150.0050.00316.80
8.0.140.0000.00716.83
8.0.130.0030.00313.36
8.0.120.0060.00316.70
8.0.110.0050.00216.89
8.0.100.0030.00316.78
8.0.90.0070.00016.77
8.0.80.0070.01016.87
8.0.70.0040.00416.79
8.0.60.0050.00216.87
8.0.50.0040.00416.84
8.0.30.0120.00716.91
8.0.20.0160.00217.05
8.0.10.0000.00716.96
8.0.00.0080.00916.74
7.4.330.0040.00012.97
7.4.320.0030.00316.42
7.4.300.0030.00316.54
7.4.290.0050.00316.50
7.4.280.0000.00816.62
7.4.270.0000.00716.62
7.4.260.0000.00613.39
7.4.250.0060.00316.46
7.4.240.0040.00416.70
7.4.230.0060.00016.63
7.4.220.0090.01616.41
7.4.210.0110.00716.63
7.4.200.0000.00716.35
7.4.190.0070.00016.41
7.4.160.0060.00916.48
7.4.150.0070.01016.54
7.4.140.0110.00616.57
7.4.130.0050.01216.50
7.4.120.0060.01116.52
7.4.110.0070.01116.66
7.4.100.0070.01716.50
7.4.90.0040.01416.59
7.4.80.0100.01016.55
7.4.70.0060.01216.38
7.4.60.0040.01416.30
7.4.50.0060.00316.64
7.4.40.0030.00916.51
7.4.30.0130.00316.61
7.4.00.0090.00614.64
7.3.330.0030.00313.16
7.3.320.0020.00213.23
7.3.310.0030.00316.20
7.3.300.0030.00316.32
7.3.290.0100.00316.30
7.3.280.0090.01016.31
7.3.270.0110.00516.34
7.3.260.0090.00916.56
7.3.250.0090.00916.53
7.3.240.0100.00616.22
7.3.230.0070.01016.57
7.3.210.0100.00716.23
7.3.200.0090.01319.39
7.3.190.0120.00916.35
7.3.180.0090.00916.26
7.3.170.0070.00716.36
7.3.160.0150.00016.40
7.3.120.0030.01215.00
7.2.330.0170.00016.58
7.2.320.0140.00316.59
7.2.310.0060.01316.59
7.2.300.0060.01116.57
7.2.290.0030.01516.72
7.2.00.0060.00919.55
7.1.100.0070.00318.28
7.1.70.0000.00916.80
7.1.60.0100.01419.40
7.1.50.0090.01316.89
7.1.00.0070.05322.40
7.0.200.0000.00916.82
7.0.140.0130.06322.04
7.0.120.0000.06322.09
7.0.60.0100.07720.02
7.0.50.0000.04717.86
7.0.40.0200.03020.04
7.0.30.0330.07320.24
7.0.20.0300.06320.38
7.0.10.0270.07320.15
7.0.00.0070.08720.08
5.6.280.0070.06721.04
5.6.210.0100.07020.48
5.6.200.0070.03718.18
5.6.190.0100.05720.57
5.6.180.0270.07720.58
5.6.170.0130.04720.52
5.6.160.0030.04020.43
5.6.150.0300.05718.21
5.6.140.0030.04018.11
5.6.130.0100.07318.29
5.6.120.0170.03720.99
5.6.110.0130.07720.99
5.6.100.0100.07720.98
5.6.90.0030.04321.00
5.6.80.0070.05720.54
5.6.70.0300.06020.33
5.5.350.0330.06720.41
5.5.340.0030.04017.98
5.5.330.0100.08720.21
5.5.320.0270.07320.27
5.5.310.0370.06020.30
5.5.300.0070.04317.97
5.5.290.0000.04318.04
5.5.280.0070.08720.69
5.5.270.0100.05320.78
5.5.260.0030.04320.79
5.5.250.0130.07320.70
5.5.240.0100.05720.03
5.4.450.0070.07719.18
5.4.440.0100.07319.57
5.4.430.0070.04019.48
5.4.420.0070.08319.53
5.4.410.0000.08319.17
5.4.400.0130.06719.15
5.4.390.0030.06019.15
5.4.380.0030.03719.16
5.4.370.0070.04319.15
5.4.360.0030.04318.92
5.4.350.0000.04019.24
5.4.340.0070.03719.16
5.4.320.0030.03718.92
5.4.310.0170.02718.86
5.4.300.0000.04019.15
5.4.290.0070.04719.11
5.4.280.0030.04319.11
5.4.270.0130.02718.91
5.4.260.0100.03019.14
5.4.250.0030.03719.14
5.4.240.0100.03319.23
5.4.230.0070.03319.23
5.4.220.0000.04019.11
5.4.210.0000.04019.11
5.4.200.0030.03718.87
5.4.190.0030.03718.91
5.4.180.0030.03719.13
5.4.170.0070.03319.15
5.4.160.0030.03718.94
5.4.150.0030.03719.13
5.4.140.0030.04016.37
5.4.130.0070.03016.42
5.4.120.0000.03716.39
5.4.110.0100.07316.39
5.4.100.0100.05316.46
5.4.90.0070.07316.41
5.4.80.0100.05316.44
5.4.70.0100.04716.37
5.4.60.0100.04016.38
5.4.50.0070.05016.28
5.4.40.0000.04716.41
5.4.30.0100.07016.27
5.4.20.0100.04316.29
5.4.10.0200.06316.38
5.4.00.0100.04715.82
5.3.290.0000.04014.71
5.3.280.0030.03714.61
5.3.270.0070.03314.64
5.3.260.0030.04314.64
5.3.250.0000.04014.66
5.3.240.0030.03714.66
5.3.230.0000.04014.54
5.3.220.0070.03314.62
5.3.210.0100.03714.49
5.3.200.0070.07314.71
5.3.190.0000.08014.56
5.3.180.0100.07314.71
5.3.170.0100.07014.58
5.3.160.0070.05014.63
5.3.150.0100.07014.71
5.3.140.0070.04314.61
5.3.130.0130.06714.58
5.3.120.0000.07714.69
5.3.110.0100.07714.58
5.3.100.0070.07714.06
5.3.90.0070.07014.02
5.3.80.0000.05014.10
5.3.70.0100.04014.05
5.3.60.0130.05014.06
5.3.50.0030.06313.92
5.3.40.0000.07714.11
5.3.30.0070.05313.81
5.3.20.0030.05013.64
5.3.10.0130.05013.61
5.3.00.0070.07013.65
5.2.170.0070.05011.12
5.2.160.0030.03311.21
5.2.150.0070.06011.12
5.2.140.0030.03011.15
5.2.130.0070.05711.26
5.2.120.0070.06011.12
5.2.110.0130.05311.25
5.2.100.0070.05311.26
5.2.90.0030.05311.12
5.2.80.0000.05011.11
5.2.70.0030.05711.10
5.2.60.0000.04311.02
5.2.50.0070.05311.06
5.2.40.0070.05310.92
5.2.30.0070.03710.93
5.2.20.0170.02711.03
5.2.10.0070.04310.87
5.2.00.0070.05010.87
5.1.60.0200.04310.05
5.1.50.0100.0479.97
5.1.40.0070.0479.94
5.1.30.0030.05310.40
5.1.20.0000.04310.32
5.1.10.0100.02710.04
5.1.00.0030.05010.12
5.0.50.0030.0378.55
5.0.40.0030.0338.56
5.0.30.0000.0578.28
5.0.20.0030.0438.19
5.0.10.0070.0408.14
5.0.00.0000.0608.18
4.4.90.0000.0238.08
4.4.80.0000.0308.08
4.4.70.0030.0378.08
4.4.60.0000.0308.08
4.4.50.0030.0208.08
4.4.40.0000.0278.08
4.4.30.0000.0408.08
4.4.20.0000.0278.08
4.4.10.0030.0308.08
4.4.00.0030.0538.08
4.3.110.0030.0278.08
4.3.100.0030.0238.08
4.3.90.0070.0208.08
4.3.80.0030.0238.08
4.3.70.0130.0238.08
4.3.60.0100.0308.08
4.3.50.0070.0308.08
4.3.40.0030.0408.08
4.3.30.0000.0378.08
4.3.20.0000.0408.08
4.3.10.0000.0408.08
4.3.00.0030.0178.08

preferences:
41.31 ms | 401 KiB | 5 Q