3v4l.org

run code in 300+ PHP versions simultaneously
<?php header('X-foo: bar'); @session_id('foobar'); @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)
8.3.60.0140.00018.55
8.3.50.0150.00018.13
8.3.40.0090.00618.59
8.3.30.0110.00718.59
8.3.20.0020.00520.25
8.3.10.0070.00022.05
8.3.00.0070.00021.74
8.2.180.0060.00916.63
8.2.170.0120.00322.96
8.2.160.0110.00318.79
8.2.150.0040.00424.18
8.2.140.0000.00724.66
8.2.130.0070.00322.13
8.2.120.0040.00426.35
8.2.110.0040.00422.25
8.2.100.0140.00317.63
8.2.90.0080.00019.16
8.2.80.0030.00617.97
8.2.70.0030.00717.38
8.2.60.0040.00417.91
8.2.50.0040.00418.10
8.2.40.0000.00822.15
8.2.30.0070.00019.06
8.2.20.0040.00417.89
8.2.10.0070.00018.04
8.2.00.0000.00717.93
8.1.280.0060.01625.92
8.1.270.0080.00020.36
8.1.260.0070.00026.35
8.1.250.0110.00328.09
8.1.240.0000.01022.18
8.1.230.0070.00418.86
8.1.220.0040.00417.74
8.1.210.0030.00518.77
8.1.200.0080.00017.23
8.1.190.0030.00517.22
8.1.180.0040.00420.11
8.1.170.0000.00818.64
8.1.160.0000.00718.83
8.1.150.0080.00018.48
8.1.140.0040.00417.55
8.1.130.0000.00718.93
8.1.120.0050.00317.29
8.1.110.0040.00417.33
8.1.100.0030.00317.44
8.1.90.0040.00417.38
8.1.80.0040.00417.40
8.1.70.0030.00317.28
8.1.60.0060.00317.52
8.1.50.0040.00417.46
8.1.40.0000.00817.32
8.1.30.0050.00317.60
8.1.20.0000.00717.58
8.1.10.0040.00417.42
8.1.00.0060.00317.43
8.0.300.0030.00618.77
8.0.290.0070.00016.75
8.0.280.0030.00318.29
8.0.270.0040.00417.10
8.0.260.0030.00318.44
8.0.250.0070.00016.90
8.0.240.0030.00516.80
8.0.230.0000.00716.90
8.0.220.0070.00016.74
8.0.210.0000.00716.72
8.0.200.0000.00616.88
8.0.190.0040.00416.82
8.0.180.0000.00716.89
8.0.170.0000.00816.93
8.0.160.0070.00016.82
8.0.150.0050.00516.84
8.0.140.0040.00416.74
8.0.130.0000.00713.25
8.0.120.0000.00816.70
8.0.110.0040.00416.72
8.0.100.0040.00416.71
8.0.90.0000.00716.86
8.0.80.0100.01016.75
8.0.70.0070.00016.84
8.0.60.0040.00416.75
8.0.50.0040.00416.79
8.0.30.0120.00717.11
8.0.20.0090.01117.40
8.0.10.0070.00016.98
8.0.00.0100.00716.85
7.4.330.0040.00015.55
7.4.320.0000.00616.54
7.4.300.0060.00016.43
7.4.290.0030.00616.41
7.4.280.0000.00816.53
7.4.270.0050.00216.34
7.4.260.0040.00416.55
7.4.250.0030.00316.40
7.4.240.0030.00316.52
7.4.230.0070.00016.55
7.4.220.0150.00316.52
7.4.210.0100.00316.48
7.4.200.0000.00716.64
7.4.160.0080.00716.27
7.4.150.0170.00317.40
7.4.140.0130.00717.86
7.4.130.0120.00816.33
7.4.120.0080.01116.35
7.4.110.0070.01016.42
7.4.100.0060.01616.38
7.4.90.0090.00916.36
7.4.80.0030.01319.39
7.4.70.0130.00716.60
7.4.60.0060.00916.48
7.4.50.0150.00016.47
7.4.40.0110.00516.37
7.4.30.0140.00716.48
7.4.00.0050.00914.90
7.3.330.0030.00313.01
7.3.320.0050.00012.83
7.3.310.0040.00416.27
7.3.300.0000.00615.99
7.3.290.0060.00916.15
7.3.280.0080.00816.14
7.3.270.0130.00317.40
7.3.260.0060.01116.30
7.3.250.0130.00416.14
7.3.240.0080.01316.18
7.3.230.0130.00316.20
7.3.210.0120.00616.26
7.3.200.0110.00816.07
7.3.190.0040.01116.13
7.3.180.0030.01716.32
7.3.170.0090.00616.33
7.3.160.0110.00416.17
7.3.120.0050.01214.92
7.3.110.0080.00914.67
7.3.100.0070.00514.48
7.3.90.0050.00814.51
7.3.80.0050.00814.52
7.3.70.0090.00314.58
7.3.60.0030.00814.68
7.3.50.0040.00714.66
7.3.40.0040.00914.71
7.3.30.0020.01114.61
7.3.20.0080.00716.51
7.3.10.0030.01016.41
7.3.00.0060.00816.50
7.2.330.0060.01316.56
7.2.320.0130.01016.50
7.2.310.0060.01216.28
7.2.300.0170.00616.30
7.2.290.0090.00616.60
7.2.250.0090.00914.91
7.2.240.0080.01014.89
7.2.230.0070.00814.93
7.2.220.0070.00515.01
7.2.210.0070.00814.95
7.2.200.0070.00714.88
7.2.190.0090.00814.83
7.2.180.0050.00714.80
7.2.170.0070.01014.89
7.2.160.0030.01314.90
7.2.150.0030.01016.71
7.2.140.0030.01416.70
7.2.130.0000.01416.66
7.2.120.0110.00416.73
7.2.110.0140.00016.86
7.2.100.0030.01016.73
7.2.90.0030.00916.66
7.2.80.0030.00616.45
7.2.70.0060.00916.51
7.2.60.0070.00716.94
7.2.50.0080.00816.82
7.2.40.0050.00816.66
7.2.30.0030.00916.53
7.2.20.0110.00316.87
7.2.10.0040.00816.66
7.2.00.0080.00416.71
7.1.330.0100.00415.56
7.1.320.0010.01215.63
7.1.310.0030.00815.73
7.1.300.0060.00615.75
7.1.290.0030.00615.76
7.1.280.0050.00915.54
7.1.270.0020.01015.73
7.1.260.0060.00715.64
7.1.250.0110.00015.71
7.1.200.0060.00615.77
7.1.100.0800.01516.14
7.1.90.8070.01015.67
7.1.80.5580.01615.82
7.1.70.5270.01314.93
7.1.60.4700.01933.07
7.1.50.5340.01032.86
7.1.40.3650.01032.21
7.1.30.6020.01332.43
7.1.20.0330.01634.54
7.1.10.0100.00616.40
7.1.00.0080.00816.45
7.0.240.6760.00615.99
7.0.230.7200.01615.66
7.0.220.5580.01115.58
7.0.210.4180.01014.41
7.0.200.5720.01114.98
7.0.190.5690.01314.92
7.0.180.4050.01014.25
7.0.170.3500.01314.25
7.0.160.0140.00316.09
7.0.150.0030.01016.22
7.0.140.0050.00916.25
7.0.130.0060.00916.57
7.0.120.0080.00416.62
7.0.110.0030.01016.23
7.0.100.0060.00616.17
7.0.90.0000.02016.11
7.0.80.0110.00816.18
7.0.70.0060.00915.97
7.0.60.0020.01415.84
7.0.50.7990.01316.22
7.0.40.0110.00616.27
7.0.30.0120.00616.25
7.0.20.0060.00916.25
7.0.10.0060.01316.30
7.0.00.0090.00916.42

preferences:
62.67 ms | 401 KiB | 5 Q