3v4l.org

run code in 300+ PHP versions simultaneously
<?php session_start(); $_SESSION = array('a' => 5, 'b' => 'ee"e', 'c' => 55); var_dump($_SESSION); $str = session_encode(); var_dump($str); $str = str_replace('e', 'é', $str); var_dump($str); $_SESSION = array(); var_dump($_SESSION); session_decode($str); var_dump($_SESSION); $str = session_encode(); var_dump($str);

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)
8.3.60.0100.01316.75
8.3.50.0100.00716.66
8.3.40.0070.01118.70
8.3.30.0040.01118.57
8.3.20.0040.00418.77
8.3.10.0030.00620.39
8.3.00.0050.00517.38
8.2.180.0140.00016.75
8.2.170.0110.00422.96
8.2.160.0110.00422.26
8.2.150.0040.00424.18
8.2.140.0030.00624.66
8.2.130.0040.00426.16
8.2.120.0000.00819.80
8.2.110.0030.00721.05
8.2.100.0060.00617.72
8.2.90.0000.01019.23
8.2.80.0050.00318.04
8.2.70.0080.00017.50
8.2.60.0050.00517.80
8.2.50.0000.00918.07
8.2.40.0060.00318.16
8.2.30.0070.00418.23
8.2.20.0080.00017.81
8.2.10.0080.00017.87
8.2.00.0000.00817.73
8.1.280.0100.00325.92
8.1.270.0040.00424.66
8.1.260.0030.00626.35
8.1.250.0000.00728.09
8.1.240.0070.00322.55
8.1.230.0070.00320.87
8.1.220.0040.00417.78
8.1.210.0080.00018.89
8.1.200.0060.00317.35
8.1.190.0040.00417.41
8.1.180.0060.00318.10
8.1.170.0060.00318.77
8.1.160.0000.00718.93
8.1.150.0080.00018.68
8.1.140.0050.00517.50
8.1.130.0000.00717.87
8.1.120.0040.00417.43
8.1.110.0000.00817.52
8.1.100.0040.00417.50
8.1.90.0040.00417.54
8.1.80.0040.00317.51
8.1.70.0030.00317.46
8.1.60.0040.00417.55
8.1.50.0050.00317.33
8.1.40.0040.00417.46
8.1.30.0000.00817.52
8.1.20.0050.00317.63
8.1.10.0080.00017.52
8.1.00.0000.00817.39
8.0.300.0000.00820.02
8.0.290.0000.00716.88
8.0.280.0080.00018.37
8.0.270.0050.00317.29
8.0.260.0070.00016.86
8.0.250.0000.00817.09
8.0.240.0040.00417.08
8.0.230.0000.00717.07
8.0.220.0040.00416.91
8.0.210.0000.00816.93
8.0.200.0030.00316.95
8.0.190.0000.00717.07
8.0.180.0050.00316.91
8.0.170.0060.00317.03
8.0.160.0030.00317.08
8.0.150.0050.00316.95
8.0.140.0080.00016.97
8.0.130.0060.00013.43
8.0.120.0050.00216.87
8.0.110.0000.00716.82
8.0.100.0070.00017.07
8.0.90.0000.00816.96
8.0.80.0090.00616.88
8.0.70.0070.00016.83
8.0.60.0020.00517.12
8.0.50.0040.00416.78
8.0.30.0110.00717.15
8.0.20.0130.00817.23
8.0.10.0040.00417.07
8.0.00.0050.01416.88
7.4.330.0000.00513.06
7.4.320.0060.00016.59
7.4.300.0060.00016.56
7.4.290.0040.00416.57
7.4.280.0060.00316.64
7.4.270.0000.00816.66
7.4.260.0050.00013.27
7.4.250.0000.00816.61
7.4.240.0040.00416.65
7.4.230.0030.00316.70
7.4.220.0120.00616.59
7.4.210.0040.01116.56
7.4.200.0040.00416.73
7.4.190.0070.00016.46
7.4.160.0130.00316.63
7.4.150.0150.00316.46
7.4.140.0150.01216.58
7.4.130.0130.00516.57
7.4.120.0080.00916.65
7.4.110.0110.00616.76
7.4.100.0110.00616.56
7.4.90.0150.00316.68
7.4.80.0100.01016.73
7.4.70.0150.00316.31
7.4.60.0140.01716.45
7.4.50.0000.00816.53
7.4.40.0060.01216.49
7.4.30.0110.00716.51
7.4.00.0060.01214.84
7.3.330.0000.00713.04
7.3.320.0060.00013.05
7.3.310.0000.00716.14
7.3.300.0000.00716.30
7.3.290.0130.00016.20
7.3.280.0060.01216.26
7.3.270.0080.00816.33
7.3.260.0110.00816.55
7.3.250.0100.01116.37
7.3.240.0060.01216.52
7.3.230.0130.00616.44
7.3.210.0080.00816.60
7.3.200.0170.00719.39
7.3.190.0030.01616.30
7.3.180.0100.00716.42
7.3.170.0040.01416.38
7.3.160.0090.00616.43
7.3.120.0060.00914.75
7.2.330.0030.01416.77
7.2.320.0170.00016.69
7.2.310.0070.01016.68
7.2.300.0070.01216.57
7.2.290.0070.01016.23
7.2.60.0030.01316.61
7.2.00.0040.01119.42
7.1.200.0060.00315.42
7.1.100.0040.00417.86
7.1.70.0030.01016.68
7.1.60.0140.01119.40
7.1.50.0110.01116.59
7.1.00.0070.06322.54
7.0.200.0360.00314.66
7.0.140.0100.06721.97
7.0.120.0030.05321.96
7.0.60.0470.06720.13
7.0.50.0130.06717.81
7.0.40.0030.05020.19
7.0.30.0330.03720.00
7.0.20.0100.05320.00
7.0.10.0170.06020.09
7.0.00.0030.05020.24
5.6.280.0030.07720.90
5.6.210.0970.05720.70
5.6.200.0070.04718.08
5.6.190.0130.07320.55
5.6.180.0230.07320.41
5.6.170.0270.03320.54
5.6.160.0070.07720.52
5.6.150.0030.04718.22
5.6.140.0070.07718.18
5.6.130.0070.08318.09
5.6.120.0100.08720.96
5.6.110.0030.04321.08
5.6.100.0100.08020.88
5.6.90.0100.08021.11
5.6.80.0030.08020.43
5.6.70.4430.04020.27
5.5.350.0330.05320.38
5.5.340.0070.03717.93
5.5.330.0000.04320.13
5.5.320.0230.08020.21
5.5.310.0270.05720.26
5.5.300.0130.07717.98
5.5.290.0030.06017.95
5.5.280.0030.08720.80
5.5.270.0130.07720.64
5.5.260.0170.06020.75
5.5.250.0070.07320.68
5.5.240.0100.06020.03
5.4.450.0470.04022.18
5.4.440.0700.03722.18
5.4.430.0100.04022.18
5.4.420.0100.04722.18
5.4.410.0630.03022.18
5.4.400.0700.04322.18
5.4.390.0270.04722.18
5.4.380.0470.04022.18
5.4.370.0200.04322.18
5.4.360.0130.04022.18
5.4.350.0130.03022.18
5.4.340.0100.03322.18
5.4.320.0400.04022.18
5.4.310.0770.05022.18
5.4.300.0430.04322.18
5.4.290.0170.05722.18
5.4.280.0400.04022.18
5.4.270.0200.04322.18
5.4.260.0370.04022.18
5.4.250.0500.04722.18
5.4.240.0270.05022.18
5.4.230.0500.05722.18
5.4.220.0400.05022.18
5.4.210.0300.03722.18
5.4.200.0370.04022.18
5.4.190.0330.04322.18
5.4.180.0430.07322.18
5.4.170.0600.04022.18
5.4.160.0200.04322.18
5.4.150.0170.03022.18
5.4.140.0070.03722.18
5.4.130.0570.04022.16
5.4.120.0600.05022.08
5.4.110.0470.03322.02
5.4.100.0230.03722.02
5.4.90.0230.03322.02
5.4.80.0070.04322.02
5.4.70.0100.05322.02
5.4.60.0030.03322.02
5.4.50.0130.03022.02
5.4.40.0200.03022.02
5.4.30.0100.04322.02
5.4.20.0300.04322.02
5.4.10.0800.03722.02
5.4.00.0070.03722.02
5.3.290.0230.05322.18
5.3.280.0370.04722.18
5.3.270.0070.04322.18
5.3.260.0070.04722.18
5.3.250.0100.03722.18
5.3.240.0130.04322.16
5.3.230.0630.04022.08
5.3.220.0370.04722.02
5.3.210.0530.03022.02
5.3.200.0630.04022.02
5.3.190.0170.03722.02
5.3.180.0170.05322.02
5.3.170.0030.04322.02
5.3.160.0100.04022.02
5.3.150.0030.06022.02
5.3.140.0170.02722.02
5.3.130.0400.04022.02
5.3.120.0230.04722.02
5.3.110.0230.03722.02
5.3.100.0570.04722.02
5.3.90.0330.05022.02
5.3.80.0170.03022.02
5.3.70.0730.03022.02
5.3.60.0330.04322.02
5.3.50.0600.03022.02
5.3.40.0630.03022.02
5.3.30.0500.06022.02
5.3.20.0570.03022.02
5.3.10.0000.06022.02
5.3.00.0130.05022.02
5.2.170.0530.03322.02
5.2.160.0470.03022.02
5.2.150.0370.04322.02
5.2.140.0170.04022.02
5.2.130.0100.02722.02
5.2.120.0100.04722.02
5.2.110.0030.03322.02
5.2.100.0100.03722.02
5.2.90.0270.02322.02
5.2.80.0070.03022.02
5.2.70.0100.04322.02
5.2.60.0130.04722.02
5.2.50.0100.02722.02
5.2.40.0100.02722.02
5.2.30.0130.04022.02
5.2.20.0170.03022.02
5.2.10.0130.03022.02
5.2.00.0170.03722.02
5.1.60.0070.02722.02
5.1.50.0030.03022.02
5.1.40.0130.02322.02
5.1.30.0130.06022.02
5.1.20.0230.03322.02
5.1.10.0400.03022.02
5.1.00.0400.03325.18
5.0.50.0230.01725.18
5.0.40.0100.02025.18
5.0.30.0070.02725.18
5.0.20.0200.01725.18
5.0.10.0270.02325.18
5.0.00.0230.02725.18
4.4.90.0170.02022.02
4.4.80.0070.02722.02
4.4.70.0330.01722.02
4.4.60.0300.02322.02
4.4.50.0130.02022.02
4.4.40.0070.03022.02
4.4.30.0030.02722.02
4.4.20.0070.02022.02
4.4.10.0000.02325.18
4.4.00.0130.02025.18
4.3.110.0130.02025.18
4.3.100.0230.01325.18
4.3.90.0000.01325.18
4.3.80.0300.02025.18
4.3.70.0130.02025.18
4.3.60.0130.01325.18
4.3.50.0030.02725.18
4.3.40.0200.02725.18
4.3.30.0030.01325.18
4.3.20.0000.03025.18
4.3.10.0070.03325.18
4.3.00.0000.01725.18

preferences:
37.77 ms | 401 KiB | 5 Q