3v4l.org

run code in 300+ PHP versions simultaneously
<?php header('X-foo: bar'); session_id('foobar'); var_dump(session_id()); session_id(''); var_dump(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)
8.3.60.0120.00318.30
8.3.50.0130.00618.07
8.3.40.0070.01018.50
8.3.30.0040.01518.59
8.3.20.0040.00420.21
8.3.10.0070.00722.04
8.3.00.0040.00421.73
8.2.180.0100.00716.38
8.2.170.0170.00322.96
8.2.160.0070.00722.21
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0060.00322.16
8.2.120.0040.00426.35
8.2.110.0070.00320.99
8.2.100.0040.00717.78
8.2.90.0040.00418.97
8.2.80.0080.00017.97
8.2.70.0000.00817.50
8.2.60.0000.00817.80
8.2.50.0000.00818.10
8.2.40.0050.00322.15
8.2.30.0050.00318.99
8.2.20.0040.00417.84
8.2.10.0070.00017.81
8.2.00.0000.00917.92
8.1.280.0060.01325.92
8.1.270.0070.00720.32
8.1.260.0000.00826.35
8.1.250.0080.00428.09
8.1.240.0040.00423.84
8.1.230.0060.00619.01
8.1.220.0040.00417.74
8.1.210.0000.00918.77
8.1.200.0050.00516.88
8.1.190.0040.00417.10
8.1.180.0040.00420.29
8.1.170.0080.00018.49
8.1.160.0030.00318.74
8.1.150.0040.00418.42
8.1.140.0000.00717.62
8.1.130.0030.00318.84
8.1.120.0050.00217.38
8.1.110.0070.00017.36
8.1.100.0000.00717.24
8.1.90.0040.00417.21
8.1.80.0040.00417.18
8.1.70.0000.00717.32
8.1.60.0030.00617.45
8.1.50.0000.00817.39
8.1.40.0040.00417.39
8.1.30.0000.00817.49
8.1.20.0040.00417.45
8.1.10.0040.00417.38
8.1.00.0070.00417.20
8.0.300.0050.00218.77
8.0.290.0040.00416.58
8.0.280.0030.00318.30
8.0.270.0000.00717.16
8.0.260.0030.00318.28
8.0.250.0030.00416.82
8.0.240.0060.00316.85
8.0.230.0080.00016.81
8.0.220.0000.00716.81
8.0.210.0000.00716.73
8.0.200.0030.00316.75
8.0.190.0000.00816.94
8.0.180.0000.00716.86
8.0.170.0030.00316.90
8.0.160.0070.00016.78
8.0.150.0040.00416.79
8.0.140.0030.00516.77
8.0.130.0030.00313.29
8.0.120.0070.00016.69
8.0.110.0070.00016.80
8.0.100.0050.00316.88
8.0.90.0000.00716.63
8.0.80.0100.01016.80
8.0.70.0000.00716.72
8.0.60.0070.00016.64
8.0.50.0000.00816.69
8.0.30.0100.01316.76
8.0.20.0140.00817.40
8.0.10.0070.00016.84
8.0.00.0090.00916.81
7.4.330.0050.00015.55
7.4.320.0040.00416.38
7.4.300.0000.00616.38
7.4.290.0060.00616.36
7.4.280.0040.00416.45
7.4.270.0050.00216.46
7.4.260.0030.00316.45
7.4.250.0030.00316.22
7.4.240.0070.00016.42
7.4.230.0020.00516.48
7.4.220.0070.01116.48
7.4.210.0060.00616.49
7.4.200.0030.00316.53
7.4.160.0100.00616.45
7.4.150.0130.00617.40
7.4.140.0150.00517.86
7.4.130.0150.00916.45
7.4.120.0120.00816.38
7.4.110.0100.01316.33
7.4.100.0120.00916.29
7.4.90.0090.00916.30
7.4.80.0090.02019.39
7.4.70.0100.00716.32
7.4.60.0040.01716.32
7.4.50.0040.01416.55
7.4.40.0070.01016.26
7.4.30.0110.00516.08
7.4.10.0030.01616.36
7.4.00.0030.01515.31
7.3.330.0030.00313.04
7.3.320.0030.00313.08
7.3.310.0030.00316.20
7.3.300.0070.00016.14
7.3.290.0090.00516.20
7.3.280.0080.00816.18
7.3.270.0170.00017.40
7.3.260.0140.00316.15
7.3.250.0130.00616.24
7.3.240.0100.01016.29
7.3.230.0060.01216.38
7.3.210.0120.00616.24
7.3.200.0100.01016.27
7.3.190.0120.00816.39
7.3.180.0120.00916.36
7.3.170.0090.00616.25
7.3.160.0030.01716.09
7.3.130.0040.01416.25
7.3.120.0070.01116.26
7.3.110.0030.01116.33
7.3.100.0090.00616.16
7.3.90.0060.01316.38
7.3.80.0090.00616.09
7.3.70.0090.00616.18
7.3.60.0040.01116.27
7.3.50.0060.01316.06
7.3.40.0070.00716.03
7.3.30.0120.00616.22
7.3.20.0070.01117.84
7.3.10.0090.00618.03
7.3.00.0030.01417.84
7.2.330.0060.01016.23
7.2.320.0030.01916.34
7.2.310.0060.01116.18
7.2.300.0140.01016.27
7.2.290.0130.00316.10
7.2.260.0100.00616.23
7.2.250.0110.00716.13
7.2.240.0000.01516.23
7.2.230.0030.01516.34
7.2.220.0000.01916.18
7.2.210.0100.00316.29
7.2.200.0070.01116.25
7.2.190.0090.00616.38
7.2.180.0130.00016.23
7.2.170.0060.01216.26
7.2.160.0030.01616.18
7.2.150.0060.00918.23
7.2.140.0030.01118.23
7.2.130.0040.01118.14
7.2.120.0040.01518.04
7.2.110.0090.00618.18
7.2.100.0030.01018.23
7.2.90.0060.01318.00
7.2.80.0060.00917.98
7.2.70.0040.00918.24
7.2.60.0040.01017.46
7.2.50.0020.01518.17
7.2.40.0000.01518.11
7.2.30.0070.01018.29
7.2.20.0040.01118.33
7.2.10.0070.00718.13
7.2.00.0070.01118.18
7.1.330.0070.01017.23
7.1.320.0110.00717.40
7.1.310.0000.00917.18
7.1.300.0060.01217.27
7.1.290.0000.01617.20
7.1.280.0060.00617.09
7.1.270.0040.01117.07
7.1.260.0070.00717.30
7.1.250.0000.01417.18
7.1.240.0030.01317.16
7.1.230.0040.01117.23
7.1.220.0090.00617.16
7.1.210.0150.00317.12
7.1.200.0110.00316.43
7.1.190.0060.01017.18
7.1.180.0150.00417.04
7.1.170.0050.01017.06
7.1.160.0040.01117.08
7.1.150.0030.01317.20
7.1.140.0060.00617.21
7.1.130.0090.00617.20
7.1.120.0060.00617.13
7.1.110.0070.00717.11
7.1.100.0040.01017.66
7.1.90.0080.01017.49
7.1.80.0080.01116.98
7.1.70.0490.00916.32
7.1.60.0120.02029.06
7.1.50.0170.01328.93
7.1.40.0180.01328.59
7.1.30.0160.01328.54
7.1.20.0140.01028.64
7.1.10.0090.00716.79
7.1.00.1290.00916.19
7.0.330.0030.00716.66
7.0.320.0070.00716.86
7.0.310.0050.00816.93
7.0.300.0040.01216.87
7.0.290.0030.01416.62
7.0.280.0070.00716.62
7.0.270.0070.00716.84
7.0.260.0070.00716.92
7.0.250.0070.00316.79
7.0.240.0080.00717.15
7.0.230.0060.01117.15
7.0.220.3480.01117.31
7.0.210.1560.01016.52
7.0.200.0080.01016.71
7.0.190.0090.00916.63
7.0.180.0070.01016.30
7.0.170.0030.01316.38
7.0.160.0070.00816.29
7.0.150.0040.00916.44
7.0.140.1960.00915.79
7.0.130.0830.00915.92
7.0.120.1240.01115.90
7.0.110.1790.01315.78
7.0.100.1350.01215.76
7.0.90.1440.00715.80
7.0.80.1610.01015.81
7.0.70.1250.00915.67
7.0.60.1790.01415.59
7.0.50.1610.01615.80
7.0.40.1810.00915.26
7.0.30.1850.01215.23
7.0.20.1660.00815.15
7.0.10.1580.00915.21
7.0.00.1260.01115.17
5.6.400.0000.01415.78
5.6.390.0040.01115.84
5.6.380.0100.00715.80
5.6.370.0070.00715.68
5.6.360.0090.00615.38
5.6.350.0040.01115.54
5.6.340.0030.01015.73
5.6.330.0070.00415.85
5.6.320.0000.01515.67
5.6.310.0070.00315.74
5.6.300.0070.00715.56
5.6.290.0070.01015.69
5.6.280.0070.01015.77
5.6.270.0000.01215.92
5.6.260.0070.00715.68
5.6.250.0040.01115.62
5.6.240.0030.01315.59
5.6.230.0070.01015.67
5.6.220.0030.01015.48
5.6.210.0070.01015.49
5.6.200.0030.00715.73
5.6.190.0090.00615.70
5.6.180.0080.00815.62
5.6.170.0030.01715.67
5.6.160.0070.01115.68
5.6.150.0130.00615.44
5.6.140.0110.00415.86
5.6.130.0060.01015.63
5.6.120.0090.00615.76
5.6.110.0000.01215.61
5.6.100.0110.00415.66
5.6.90.0100.00715.93
5.6.80.0060.01015.48
5.6.70.0040.00815.68
5.6.60.0070.00315.60
5.6.50.0090.00315.48
5.6.40.0070.00715.75
5.6.30.0070.00715.50
5.6.20.0060.00315.44
5.6.10.0030.00715.52
5.6.00.0060.00915.52

preferences:
63.35 ms | 400 KiB | 5 Q