3v4l.org

run code in 300+ PHP versions simultaneously
<?php date_default_timezone_set('UTC'); session_start(); $session1 = session_id(); if (!isset($_SESSION['init'])) { $_SESSION['init'] = "foobar"; } $init1 = @$_SESSION['init']; session_regenerate_id(false); var_dump($init1); var_dump($_SESSION['init']); var_dump('session id1 ' . $session1); var_dump('session id2 ' . session_id()); ?>

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)
8.3.60.0070.00716.61
8.3.50.0120.00522.02
8.3.40.0040.01118.84
8.3.30.0110.00319.10
8.3.20.0040.00420.39
8.3.10.0030.00621.94
8.3.00.0080.00018.05
8.2.180.0080.00816.88
8.2.170.0140.00722.96
8.2.160.0140.00320.43
8.2.150.0040.00424.18
8.2.140.0060.00324.66
8.2.130.0030.00526.16
8.2.120.0060.00321.15
8.2.110.0090.00322.25
8.2.100.0070.00320.48
8.2.90.0000.00719.39
8.2.80.0040.00417.97
8.2.70.0030.00517.75
8.2.60.0000.01018.16
8.2.50.0000.00818.07
8.2.40.0050.00318.47
8.2.30.0030.00618.22
8.2.20.0050.00317.75
8.2.10.0030.00618.23
8.2.00.0090.00017.93
8.1.280.0060.00925.92
8.1.270.0030.00723.99
8.1.260.0060.00326.35
8.1.250.0040.00428.09
8.1.240.0090.00022.06
8.1.230.0070.00419.22
8.1.220.0050.00317.80
8.1.210.0080.00018.77
8.1.200.0060.00617.47
8.1.190.0000.00817.36
8.1.180.0080.00018.10
8.1.170.0040.00418.63
8.1.160.0040.00422.17
8.1.150.0040.00418.88
8.1.140.0000.00917.59
8.1.130.0000.00817.82
8.1.120.0050.00217.48
8.1.110.0040.00417.46
8.1.100.0050.00217.58
8.1.90.0000.00717.55
8.1.80.0040.00417.54
8.1.70.0000.00817.59
8.1.60.0000.00917.47
8.1.50.0080.00017.57
8.1.40.0040.00417.64
8.1.30.0060.00317.68
8.1.20.0000.00817.67
8.1.10.0050.00317.52
8.1.00.0040.00417.63
8.0.300.0080.00018.77
8.0.290.0040.00417.00
8.0.280.0020.00518.55
8.0.270.0030.00317.37
8.0.260.0030.00317.24
8.0.250.0030.00317.07
8.0.240.0030.00317.06
8.0.230.0040.00416.87
8.0.220.0040.00416.94
8.0.210.0000.00716.81
8.0.200.0050.00217.09
8.0.190.0060.00316.92
8.0.180.0050.00216.86
8.0.170.0040.00417.00
8.0.160.0040.00416.95
8.0.150.0090.00316.78
8.0.140.0070.00016.82
8.0.130.0030.00313.34
8.0.120.0030.00516.96
8.0.110.0040.00416.94
8.0.100.0000.00816.76
8.0.90.0000.00816.96
8.0.80.0080.00816.89
8.0.70.0040.00416.81
8.0.60.0040.00416.82
8.0.50.0070.00016.97
8.0.30.0090.01117.12
8.0.20.0090.01117.40
8.0.10.0070.00016.98
8.0.00.0070.01116.97
7.4.330.0050.00015.03
7.4.320.0070.00016.64
7.4.300.0000.00716.69
7.4.290.0070.00016.65
7.4.280.0030.00316.66
7.4.270.0000.00716.48
7.4.260.0040.00416.55
7.4.250.0020.00516.57
7.4.240.0060.00216.50
7.4.230.0030.00316.44
7.4.220.0180.00716.72
7.4.210.0090.00916.50
7.4.200.0040.00416.69
7.4.160.0090.00616.40
7.4.150.0120.00617.40
7.4.140.0110.01017.86
7.4.130.0100.01216.68
7.4.120.0090.01116.55
7.4.110.0110.00616.38
7.4.100.0120.00616.55
7.4.90.0080.01316.70
7.4.80.0070.01319.39
7.4.70.0030.01316.50
7.4.60.0030.01616.50
7.4.50.0030.00516.78
7.4.40.0100.00716.47
7.4.30.0130.00716.46
7.4.00.0040.01115.24
7.3.330.0030.00313.33
7.3.320.0050.00013.04
7.3.310.0030.00316.41
7.3.300.0040.00416.41
7.3.290.0040.01316.28
7.3.280.0040.01616.40
7.3.270.0040.01417.40
7.3.260.0130.00316.68
7.3.240.0120.00516.40
7.3.230.0030.01216.42
7.3.210.0140.00916.35
7.3.200.0190.01419.39
7.3.190.0090.00916.59
7.3.180.0100.01016.54
7.3.170.0030.01316.46
7.3.160.0070.01416.45
7.3.120.0040.01414.80
7.3.110.0110.00714.94
7.3.100.0110.00414.61
7.3.90.0040.01114.97
7.3.80.0100.00314.84
7.3.70.0070.01114.89
7.3.60.0060.01014.88
7.3.50.0040.01214.95
7.3.40.0030.01414.73
7.3.30.0090.00614.65
7.3.20.0060.01016.58
7.3.10.0060.00916.63
7.3.00.0060.00816.72
7.2.330.0130.00616.75
7.2.320.0110.00616.43
7.2.310.0110.00616.32
7.2.300.0110.00516.58
7.2.290.0110.00616.70
7.2.240.0040.01414.94
7.2.230.0070.01015.38
7.2.220.0030.01215.09
7.2.210.0070.00714.87
7.2.200.0140.00015.27
7.2.190.0060.01015.05
7.2.180.0090.00615.21
7.2.170.0110.00615.11
7.2.160.0100.00714.99
7.2.150.0030.01416.85
7.2.140.0040.01116.83
7.2.130.0070.00716.92
7.2.120.0060.00916.86
7.2.110.0060.00817.02
7.2.100.0060.00816.97
7.2.90.0060.00816.81
7.2.80.0080.00716.99
7.2.70.0060.00616.84
7.2.60.0070.00616.85
7.2.50.0050.01117.01
7.2.40.0090.00416.91
7.2.30.0060.00617.00
7.2.20.0070.00716.86
7.2.10.0040.01016.81
7.2.00.0070.00917.50
7.1.330.0040.01515.72
7.1.320.0100.00315.59
7.1.310.0090.00615.77
7.1.300.0060.01015.90
7.1.290.0030.01015.85
7.1.280.0130.00015.90
7.1.270.0000.01415.99
7.1.260.0070.01115.96
7.1.250.0050.00815.85
7.1.240.0110.00416.01
7.1.230.0100.00615.93
7.1.220.0070.00715.57
7.1.210.0090.00615.91
7.1.200.0030.00915.85
7.1.190.0040.01116.01
7.1.180.0060.00915.84
7.1.170.0000.00715.77
7.1.160.0070.00715.78
7.1.150.0060.00615.46
7.1.140.0070.00715.78
7.1.130.0040.01115.94
7.1.120.0120.00015.93
7.1.110.0050.00515.96
7.1.100.0060.00816.96
7.1.90.0030.00915.57
7.1.80.0120.00315.96
7.1.70.0030.00816.31
7.1.60.0080.00817.60
7.1.50.0110.00816.46
7.1.40.0070.01015.96
7.1.30.0000.01115.84
7.1.20.0040.00415.78
7.1.10.0030.00915.86
7.1.00.0050.03719.15
7.0.330.0070.00715.30
7.0.320.0030.01015.55
7.0.310.0000.00915.26
7.0.300.0060.00315.49
7.0.290.0040.00715.58
7.0.280.0030.00915.55
7.0.270.0070.00315.63
7.0.260.0000.01215.45
7.0.250.0060.00615.35
7.0.240.0050.00515.18
7.0.230.0030.01015.35
7.0.220.0070.00315.39
7.0.210.0040.00715.16
7.0.200.0040.00515.99
7.0.190.0040.00815.38
7.0.180.0000.01015.50
7.0.170.0030.01015.54
7.0.160.0070.00715.58
7.0.150.0000.01515.55
7.0.140.0070.03318.68
7.0.130.0030.01015.29
7.0.120.0000.01415.47
7.0.110.0070.01015.29
7.0.100.0040.00715.53
7.0.90.0030.01015.59
7.0.80.0000.01215.21
7.0.70.0070.00715.17
7.0.60.0960.04417.73
7.0.50.0050.02616.58
7.0.40.0120.04016.86
7.0.30.0170.04016.93
7.0.20.0150.04316.91
7.0.10.0150.03916.84
7.0.00.0100.02616.77
5.6.380.0040.00414.46
5.6.370.0080.00414.65
5.6.360.0070.00714.51
5.6.350.0040.00814.73
5.6.340.0030.01114.61
5.6.330.0060.00614.46
5.6.320.0100.00614.61
5.6.310.0000.01014.56
5.6.300.0060.00914.52
5.6.290.0000.01414.33
5.6.280.0020.04317.75
5.6.270.0120.00014.35
5.6.260.0110.00414.36
5.6.250.0060.00914.16
5.6.240.0070.00714.39
5.6.230.0060.00914.29
5.6.220.0060.00614.32
5.6.210.0720.02817.46
5.6.200.0080.04316.31
5.6.190.0090.04217.53
5.6.180.0070.04217.44
5.6.170.0100.02217.49
5.6.160.0020.02917.31
5.6.150.0050.02516.22
5.6.140.0030.02516.23
5.6.130.0070.02216.46
5.6.120.0070.03917.69
5.6.110.0020.02517.66
5.6.100.0100.04217.62
5.6.90.0030.03917.69
5.6.80.0100.02817.42
5.6.70.0000.01214.15
5.6.60.0030.00614.45
5.6.50.0110.00014.24
5.6.40.0070.00414.14
5.6.30.0130.00014.64
5.6.20.0060.00614.49
5.6.10.0090.00614.11
5.6.00.0060.00314.02
5.5.380.0080.00311.01
5.5.370.0000.00811.16
5.5.360.0030.00711.17
5.5.350.0160.03615.87
5.5.340.0030.02614.57
5.5.330.0070.03215.59
5.5.320.0180.04015.63
5.5.310.0150.04115.75
5.5.300.0030.03814.59
5.5.290.0060.04514.46
5.5.280.0050.03216.07
5.5.270.0060.03715.89
5.5.260.0180.04115.99
5.5.250.0060.02915.85
5.5.240.0020.04515.63
5.5.230.0030.00311.22
5.5.220.0060.00611.32
5.5.210.0060.00011.08
5.5.200.0030.00511.16
5.5.190.0060.00610.94
5.5.180.0060.00311.23
5.5.170.0030.00911.00
5.5.160.0040.00410.97
5.5.150.0070.00410.99
5.5.140.0000.00711.27
5.5.130.0030.00511.43
5.5.120.0000.00811.06
5.5.110.0030.00711.11
5.5.100.0070.00410.90
5.5.90.0050.00210.94
5.5.80.0060.00310.96
5.5.70.0000.00910.90
5.5.60.0030.00310.90
5.5.50.0000.00810.94
5.5.40.0000.01011.22
5.5.30.0070.00311.05
5.5.20.0030.00910.90
5.5.10.0000.00711.06
5.5.00.0070.00310.95
5.4.450.0800.03315.39
5.4.440.0840.03815.34
5.4.430.0620.03715.26
5.4.420.0500.03315.22
5.4.410.0480.03215.29
5.4.400.0650.02715.02
5.4.390.0570.03514.93
5.4.380.0720.03515.10
5.4.370.0580.03014.98
5.4.360.0720.02215.05
5.4.350.0530.02914.93
5.4.340.0550.04015.12
5.4.330.0080.00311.01
5.4.320.0650.03714.92
5.4.310.0660.02515.09
5.4.300.0620.02915.00
5.4.290.0530.02714.93
5.4.280.0620.02515.04
5.4.270.0600.02614.95
5.4.260.0620.02714.93
5.4.250.0610.02615.03
5.4.240.0590.02415.05
5.4.230.0530.02615.01
5.4.220.0440.03415.09
5.4.210.0580.03714.93
5.4.200.0630.02515.08
5.4.190.0570.03414.95
5.4.180.0550.03715.07
5.4.170.0620.02714.99
5.4.160.0500.03314.93
5.4.150.0580.03614.99
5.4.140.0530.03013.62
5.4.130.0610.03013.60
5.4.120.0660.02613.51
5.4.110.0460.03213.77
5.4.100.0620.02513.59
5.4.90.0450.03013.68
5.4.80.0770.02813.76
5.4.70.0580.02613.69
5.4.60.0480.03213.61
5.4.50.0450.02813.62
5.4.40.0400.03113.72
5.4.30.0550.02713.62
5.4.20.0580.03713.62
5.4.10.0700.03913.60
5.4.00.0570.02513.27
5.3.290.0470.03212.73
5.3.280.0620.02712.73
5.3.270.0630.02612.73
5.3.260.0720.02212.71
5.3.250.0480.02812.75
5.3.240.0500.02512.74
5.3.230.0530.02512.73
5.3.220.0570.03012.68
5.3.210.0480.03112.69
5.3.200.0480.03312.72
5.3.190.0580.03212.68
5.3.180.0550.03712.72
5.3.170.0460.03312.69
5.3.160.0640.02412.62
5.3.150.0470.03012.65
5.3.140.0580.02512.67
5.3.130.0650.03212.71
5.3.120.0650.03012.68
5.3.110.0720.03012.70
5.3.100.0550.03012.43
5.3.90.0530.02712.39
5.3.80.0480.02212.42
5.3.70.0550.02712.41
5.3.60.0560.02812.37
5.3.50.0620.02812.35
5.3.40.0470.03312.38
5.3.30.0470.02812.29
5.3.20.0560.02812.21
5.3.10.0480.02312.20
5.3.00.0580.03012.24
5.2.170.0400.02310.98
5.2.160.0460.02311.05
5.2.150.0480.02610.96
5.2.140.0470.02010.91
5.2.130.0420.03610.93
5.2.120.0380.02210.94
5.2.110.0320.02510.89
5.2.100.0470.01710.97
5.2.90.0530.02011.02
5.2.80.0370.02110.96
5.2.70.0580.03010.95
5.2.60.0580.03210.99
5.2.50.0360.02310.99
5.2.40.0420.02810.96
5.2.30.0580.03010.91
5.2.20.0410.02010.87
5.2.10.0380.02510.92
5.2.00.0360.02110.87
5.1.60.0500.02110.68
5.1.50.0400.02210.68
5.1.40.0480.02010.68
5.1.30.0270.02110.68
5.1.20.0400.02210.66
5.1.10.0300.02310.66
5.1.00.0320.02410.66
5.0.50.0050.0108.76
5.0.40.0040.0098.69
5.0.30.0020.0198.59
5.0.20.0030.0128.58
5.0.10.0030.0128.57
5.0.00.0040.0178.56
4.4.90.0040.0127.84
4.4.80.0030.0097.83
4.4.70.0020.0137.82
4.4.60.0020.0127.83
4.4.50.0050.0107.83
4.4.40.0020.0197.80
4.4.30.0030.0107.83
4.4.20.0040.0097.87
4.4.10.0030.0097.88
4.4.00.0010.0177.83
4.3.110.0050.0087.79
4.3.100.0020.0147.78
4.3.90.0050.0107.77
4.3.80.0040.0157.74
4.3.70.0030.0117.77
4.3.60.0020.0117.76
4.3.50.0050.0097.76
4.3.40.0050.0147.72
4.3.30.0020.0117.09
4.3.20.0020.0087.08
4.3.10.0010.0107.06
4.3.00.0030.0138.93

preferences:
50.9 ms | 401 KiB | 5 Q