3v4l.org

run code in 300+ PHP versions simultaneously
<?php session_start(); $_SESSION = array('a' => 5, 'b' => 'e', 'c' => 55); var_dump($_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)
8.3.60.0210.00318.55
8.3.50.0140.00516.71
8.3.40.0040.01118.59
8.3.30.0040.01818.54
8.3.20.0000.00818.68
8.3.10.0040.00420.54
8.3.00.0080.00017.50
8.2.180.0130.01018.66
8.2.170.0170.00319.03
8.2.160.0100.00722.96
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0030.00526.16
8.2.120.0080.00019.48
8.2.110.0090.00021.18
8.2.100.0030.00717.97
8.2.90.0030.00619.01
8.2.80.0050.00317.97
8.2.70.0080.00017.63
8.2.60.0040.00417.93
8.2.50.0000.00818.07
8.2.40.0000.00818.31
8.2.30.0090.00018.30
8.2.20.0060.00317.75
8.2.10.0030.00517.92
8.2.00.0040.00417.86
8.1.280.0070.01425.92
8.1.270.0060.00322.18
8.1.260.0040.00426.35
8.1.250.0050.00228.09
8.1.240.0040.00421.24
8.1.230.0060.00717.64
8.1.220.0000.00817.79
8.1.210.0040.00418.77
8.1.200.0040.00417.35
8.1.190.0040.00417.22
8.1.180.0060.00318.10
8.1.170.0000.01018.72
8.1.160.0030.00618.95
8.1.150.0000.00718.69
8.1.140.0030.00717.50
8.1.130.0000.00717.79
8.1.120.0040.00417.47
8.1.110.0000.00717.54
8.1.100.0050.00317.38
8.1.90.0050.00317.39
8.1.80.0000.00717.51
8.1.70.0030.00317.44
8.1.60.0000.00817.67
8.1.50.0030.00617.44
8.1.40.0030.00617.61
8.1.30.0030.00617.73
8.1.20.0000.00817.59
8.1.10.0040.00417.39
8.1.00.0000.00817.37
8.0.300.0000.00818.77
8.0.290.0110.00016.75
8.0.280.0030.00518.54
8.0.270.0000.00717.32
8.0.260.0070.00016.98
8.0.250.0070.00017.08
8.0.240.0060.00317.09
8.0.230.0040.00417.02
8.0.220.0030.00317.01
8.0.210.0030.00316.91
8.0.200.0030.00316.95
8.0.190.0000.00716.94
8.0.180.0040.00417.04
8.0.170.0030.00616.97
8.0.160.0000.00816.97
8.0.150.0060.00316.83
8.0.140.0000.00817.02
8.0.130.0030.00313.38
8.0.120.0040.00416.95
8.0.110.0080.00016.81
8.0.100.0000.00716.85
8.0.90.0000.00817.03
8.0.80.0090.00916.93
8.0.70.0000.00716.92
8.0.60.0030.00516.96
8.0.50.0070.00017.04
8.0.30.0110.01017.02
8.0.20.0160.00517.13
8.0.10.0000.00817.20
8.0.00.0110.00716.88
7.4.330.0000.00512.95
7.4.320.0060.00016.60
7.4.300.0060.00016.65
7.4.290.0000.00716.56
7.4.280.0070.00016.51
7.4.270.0040.00416.66
7.4.260.0050.00013.25
7.4.250.0030.00616.59
7.4.240.0000.00716.55
7.4.230.0070.00016.66
7.4.220.0150.00316.64
7.4.210.0080.00816.62
7.4.200.0070.00016.59
7.4.190.0040.00416.52
7.4.160.0030.01316.57
7.4.150.0120.00916.67
7.4.140.0130.00816.52
7.4.130.0090.01116.48
7.4.120.0040.01316.54
7.4.110.0090.00916.59
7.4.100.0090.00916.74
7.4.90.0090.00916.51
7.4.80.0100.01416.57
7.4.70.0240.00016.37
7.4.60.0080.01416.53
7.4.50.0050.00316.83
7.4.40.0070.00416.70
7.4.30.0070.01316.55
7.4.00.0110.00315.16
7.3.330.0000.00713.08
7.3.320.0060.00012.93
7.3.310.0040.00416.16
7.3.300.0060.00016.22
7.3.290.0070.01316.20
7.3.280.0090.00816.23
7.3.270.0030.01416.32
7.3.260.0090.01116.53
7.3.250.0110.00616.48
7.3.240.0100.01016.42
7.3.230.0000.01716.51
7.3.210.0030.01416.23
7.3.200.0060.01219.39
7.3.190.0110.00716.30
7.3.180.0030.01316.44
7.3.170.0120.00416.31
7.3.160.0080.00816.36
7.3.120.0030.01414.93
7.2.330.0030.01416.37
7.2.320.0070.01416.70
7.2.310.0140.00316.53
7.2.300.0130.00616.30
7.2.290.0130.00416.37
7.2.60.0030.01317.01
7.2.00.0080.00819.39
7.1.200.0090.00315.87
7.1.100.0040.01118.01
7.1.70.0070.00417.04
7.1.60.0140.01019.40
7.1.50.0090.01616.79
7.1.00.0000.08022.44
7.0.200.0050.00316.46
7.0.140.0130.06722.09
7.0.120.0030.07722.16
7.0.60.0570.06320.09
7.0.50.0130.07317.82
7.0.40.0000.04717.78
7.0.30.0030.06717.69
7.0.20.0000.07017.73
7.0.10.0070.08017.71
7.0.00.0130.07317.64
5.6.280.0070.07020.82
5.6.210.1030.05720.57
5.6.200.0100.07718.22
5.6.190.0100.05718.09
5.6.180.0070.04318.18
5.6.170.0100.03718.21
5.6.160.0070.08318.11
5.6.150.0000.08318.19
5.6.140.0130.07718.22
5.6.130.0130.06718.11
5.6.120.0030.05018.20
5.6.110.0070.07718.21
5.6.100.0130.07018.11
5.6.90.0070.07018.16
5.6.80.0130.07017.46
5.6.70.0030.08717.55
5.6.60.0170.04317.51
5.6.50.0100.04017.60
5.6.40.0070.08017.44
5.6.30.0100.07317.52
5.6.20.0030.05317.57
5.6.10.0070.05017.56
5.6.00.0130.03017.52
5.5.350.0270.08320.32
5.5.340.0100.07317.96
5.5.330.0100.08017.98
5.5.320.0100.06717.89
5.5.310.0100.08317.98
5.5.300.0070.03717.91
5.5.290.0070.07017.98
5.5.280.0030.06018.02
5.5.270.0030.07018.01
5.5.260.0030.06317.90
5.5.250.0100.07317.88
5.5.240.0070.07317.37
5.5.230.0070.07717.29
5.5.220.0130.07017.34
5.5.210.0100.06717.32
5.5.200.0070.03717.32
5.5.190.0000.05317.31
5.5.180.0100.07317.34
5.5.160.0070.04317.22
5.5.150.0100.07017.33
5.5.140.0030.08717.22
5.5.130.0070.03717.31
5.5.120.0030.08317.33
5.5.110.0100.03317.32
5.5.100.0000.06317.21
5.5.90.0200.07017.22
5.5.80.0070.04317.23
5.5.70.0070.07317.12
5.5.60.0070.07317.16
5.5.50.0000.08017.21
5.5.40.0070.04717.21
5.5.30.0130.03717.11
5.5.20.0100.05017.13
5.5.10.0130.07717.21
5.5.00.0070.07017.26
5.4.450.0070.08019.36
5.4.440.0130.06719.21
5.4.430.0030.08319.33
5.4.420.0070.08019.39
5.4.410.0130.06719.24
5.4.400.0170.05719.05
5.4.390.0130.07018.95
5.4.380.0070.07718.91
5.4.370.0000.08319.03
5.4.360.0030.04019.03
5.4.350.0000.05019.01
5.4.340.0100.04319.01
5.4.320.0030.08019.04
5.4.310.0100.06319.14
5.4.300.0130.05018.98
5.4.290.0170.06718.96
5.4.280.0100.06318.82
5.4.270.0000.04319.09
5.4.260.0030.07719.07
5.4.250.0000.05318.98
5.4.240.0100.03319.05
5.4.230.0030.03719.08
5.4.220.0070.04319.08
5.4.210.0070.03719.11
5.4.200.0030.08019.02
5.4.190.0070.05319.00
5.4.180.0030.06319.02
5.4.170.0070.04019.08
5.4.160.0070.04019.05
5.4.150.0070.04019.10
5.4.140.0030.04716.34
5.4.130.0070.04316.34
5.4.120.0030.03716.32
5.4.110.0070.03716.29
5.4.100.0070.04716.29
5.4.90.0000.07316.27
5.4.80.0070.05316.41
5.4.70.0070.04016.35
5.4.60.0030.07316.40
5.4.50.0030.07016.22
5.4.40.0030.07716.30
5.4.30.0100.04016.41
5.4.20.0200.06316.39
5.4.10.0000.06016.25
5.4.00.0100.05715.87
5.3.290.0070.04714.45
5.3.280.0070.04714.56
5.3.270.0000.08314.56
5.3.260.0070.05014.58
5.3.250.0070.04714.57
5.3.240.0030.07714.58
5.3.230.0070.04314.52
5.3.220.0070.07714.39
5.3.210.0030.04014.50
5.3.200.0030.03714.51
5.3.190.0100.07314.48
5.3.180.0000.05714.54
5.3.170.0000.05014.50
5.3.160.0100.07714.51
5.3.150.0070.07714.54
5.3.140.0100.06314.52
5.3.130.0030.07714.50
5.3.120.0000.04714.47
5.3.110.0030.04014.37
5.3.100.0030.07713.82
5.3.90.0130.06713.84
5.3.80.0030.04013.98
5.3.70.0000.04014.09
5.3.60.0130.04013.96
5.3.50.0000.04013.93
5.3.40.0030.03713.77
5.3.30.0000.04313.88
5.3.20.0070.06313.68
5.3.10.0070.07313.64
5.3.00.0030.05713.57
5.2.170.0070.03711.26
5.2.160.0100.06011.26
5.2.150.0030.03311.26
5.2.140.0030.06311.26
5.2.130.0030.06711.26
5.2.120.0100.04011.26
5.2.110.0070.05711.26
5.2.100.0030.03711.26
5.2.90.0000.03711.26
5.2.80.0000.05011.26
5.2.70.0030.05711.26
5.2.60.0030.05011.26
5.2.50.0130.06011.26
5.2.40.0030.04711.26
5.2.30.0000.03711.26
5.2.20.0000.06011.26
5.2.10.0030.04311.26
5.2.00.0070.03011.26
5.1.60.0000.05711.26
5.1.50.0030.04311.26
5.1.40.0030.03711.26
5.1.30.0030.05311.26
5.1.20.0100.04011.26
5.1.10.0030.06011.26
5.1.00.0070.05711.26
5.0.50.0070.02711.26
5.0.40.0030.04711.26
5.0.30.0030.06311.26
5.0.20.0070.02711.26
5.0.10.0030.02711.26
5.0.00.0000.03711.26
4.4.90.0030.02311.26
4.4.80.0070.02711.26
4.4.70.0030.03711.26
4.4.60.0070.02711.26
4.4.50.0030.02711.26
4.4.40.0030.04311.26
4.4.30.0070.03311.26
4.4.20.0000.03711.26
4.4.10.0030.03011.26
4.4.00.0100.05011.26
4.3.110.0100.03011.26
4.3.100.0030.02311.26
4.3.90.0000.03711.26
4.3.80.0070.02711.26
4.3.70.0000.02011.26
4.3.60.0000.02011.26
4.3.50.0030.02011.26
4.3.40.0000.02711.26
4.3.30.0000.01711.26
4.3.20.0000.02711.26
4.3.10.0000.03011.26
4.3.00.0000.02311.26

preferences:
52.07 ms | 401 KiB | 5 Q