3v4l.org

run code in 300+ PHP versions simultaneously
<?php class UnSerializable implements Serializable { public function serialize() {} public function unserialize($serialized) {} } $unser = new UnSerializable(); $arr = [$unser]; $arr[] = &$arr[0]; $arr[] = 'endcap'; $arr[] = &$arr[2]; $data = serialize($arr); echo $data . PHP_EOL; $recovered = unserialize($data); var_export($recovered);

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)
8.3.60.0140.00018.66
8.3.50.0070.01416.76
8.3.40.0110.00421.73
8.3.30.0040.01118.93
8.3.20.0040.00424.18
8.3.10.0070.00024.66
8.3.00.0040.00426.16
8.2.180.0150.00025.92
8.2.170.0070.00719.09
8.2.160.0100.00522.96
8.2.150.0080.00025.66
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0050.00321.00
8.2.110.0060.00322.26
8.2.100.0070.00417.91
8.2.90.0000.00817.97
8.2.80.0050.00318.01
8.2.70.0060.00317.93
8.2.60.0040.00418.34
8.2.50.0040.00418.10
8.2.40.0050.00319.48
8.2.30.0030.00519.38
8.2.20.0000.00718.07
8.2.10.0080.00019.34
8.2.00.0040.00419.27
8.1.280.0110.00425.92
8.1.270.0090.00020.40
8.1.260.0030.00628.09
8.1.250.0050.00328.09
8.1.240.0070.00323.83
8.1.230.0110.00022.61
8.1.220.0030.00517.78
8.1.210.0040.00420.07
8.1.200.0040.00417.35
8.1.190.0040.00417.35
8.1.180.0000.00818.10
8.1.170.0040.00418.51
8.1.160.0000.00819.02
8.1.150.0000.00818.83
8.1.140.0000.00720.55
8.1.130.0030.00618.88
8.1.120.0030.00717.48
8.1.110.0000.00817.36
8.1.100.0000.00717.47
8.1.90.0080.00017.50
8.1.80.0060.00317.43
8.1.70.0030.00317.53
8.1.60.0040.00417.49
8.1.50.0080.00017.41
8.1.40.0040.00417.51
8.1.30.0000.00817.66
8.1.20.0080.00017.65
8.1.10.0030.00617.54
8.1.00.0000.00817.55
8.0.300.0000.01120.08
8.0.290.0050.00216.63
8.0.280.0000.00718.43
8.0.270.0030.00516.76
8.0.260.0060.00018.36
8.0.250.0060.00017.02
8.0.240.0030.00516.91
8.0.230.0030.00317.04
8.0.220.0030.00316.86
8.0.210.0070.00016.90
8.0.200.0000.00716.91
8.0.190.0040.00417.04
8.0.180.0000.00816.90
8.0.170.0000.00816.96
8.0.160.0000.00716.98
8.0.150.0040.00416.82
8.0.140.0000.00716.94
8.0.130.0060.00013.34
8.0.120.0040.00416.80
8.0.110.0100.00017.03
8.0.100.0050.00216.82
8.0.90.0000.00716.99
8.0.80.0050.01016.93
8.0.70.0030.00316.82
8.0.60.0040.00416.86
8.0.50.0070.00016.89
8.0.30.0100.00717.02
8.0.20.0100.01017.15
8.0.10.0030.00516.97
8.0.00.0140.00817.11
7.4.330.0000.00515.55
7.4.320.0030.00316.60
7.4.300.0030.00316.46
7.4.290.0040.00416.45
7.4.280.0030.00616.56
7.4.270.0030.00316.58
7.4.260.0060.00013.34
7.4.250.0070.00016.41
7.4.240.0030.00316.61
7.4.230.0000.00716.43
7.4.220.0040.00316.47
7.4.210.0040.01116.69
7.4.200.0000.00716.61
7.4.140.0070.01117.86
7.4.130.0110.00816.86
7.4.120.0120.00716.94
7.4.110.0090.01116.91
7.4.100.0120.01616.82
7.4.90.0140.00416.79
7.4.80.0120.00716.86
7.4.70.0110.01016.88
7.4.60.0120.00716.81
7.4.50.0120.00816.81
7.4.40.0120.00716.85
7.4.30.0120.00916.85
7.4.20.0100.01016.76
7.4.10.0120.00916.96
7.4.00.0100.00916.83
7.3.330.0050.00216.39
7.3.320.0030.00313.30
7.3.310.0070.00016.38
7.3.300.0000.00716.33
7.3.290.0090.01016.38
7.3.260.0230.00317.86
7.3.250.0160.00717.11
7.3.240.0120.00816.72
7.3.230.0090.01016.78
7.3.220.0140.00516.86
7.3.210.0080.01116.84
7.3.200.0120.00616.87
7.3.190.0120.00916.80
7.3.180.0130.00616.78
7.3.170.0080.01116.81
7.3.160.0090.01016.80
7.3.150.0150.00716.80
7.3.140.0140.00516.89
7.3.130.0100.01116.80
7.3.120.0110.01016.84
7.3.110.0130.01016.70
7.3.100.0110.01316.75
7.3.90.0140.00816.78
7.3.80.0100.01016.80
7.3.70.0140.00816.83
7.3.60.0130.00816.81
7.3.50.0110.00916.81
7.3.40.0120.00816.73
7.3.30.0110.00916.73
7.3.20.0140.00916.82
7.3.10.0140.00916.77
7.3.00.0130.00916.79
7.2.340.0130.01016.89
7.2.330.0140.00916.95
7.2.320.0150.01116.88
7.2.310.0110.01116.85
7.2.300.0170.00716.88
7.2.290.0150.01016.98
7.2.280.0180.00616.79
7.2.270.0140.00916.83
7.2.260.0150.00716.95
7.2.250.0200.00416.78
7.2.240.0120.01216.96
7.2.230.0150.00816.81
7.2.220.0130.01117.01
7.2.210.0140.01116.86
7.2.200.0160.01016.86
7.2.190.0150.01016.82
7.2.180.0170.00816.73
7.2.170.0160.00716.81
7.2.160.0160.00816.87
7.2.150.0160.01016.77
7.2.140.0210.00916.97
7.2.130.0260.01016.84
7.2.120.0140.01016.90
7.2.110.0170.00916.87
7.2.100.0130.01116.92
7.2.90.0170.00616.87
7.2.80.0170.01016.76
7.2.70.0150.00916.81
7.2.60.0210.01016.83
7.2.50.0190.00916.92
7.2.40.0150.01016.83
7.2.30.0140.01016.95
7.2.20.0160.01116.88
7.2.10.0150.01116.91
7.2.00.0130.01116.99

preferences:
67.14 ms | 400 KiB | 5 Q