3v4l.org

run code in 300+ PHP versions simultaneously
<?php session_start(); $_SESSION['ddd'] = 'fdsfsd'; session_write_close(); session_start(); $_SESSION['ddd1'] = 'fdsfsd1'; session_write_close(); session_start(); session_write_close(); echo '<pre>'; var_dump(headers_list());

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)
8.3.60.0070.01418.55
8.3.50.0170.00522.08
8.3.40.0160.00318.97
8.3.30.0140.00019.27
8.3.20.0000.00820.29
8.3.10.0040.00420.61
8.3.00.0090.00019.38
8.2.180.0110.00716.88
8.2.170.0110.01122.96
8.2.160.0090.00620.45
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0070.00022.11
8.2.110.0000.00822.38
8.2.100.0100.00718.34
8.2.90.0000.00819.17
8.2.80.0050.00317.97
8.2.70.0000.01017.75
8.2.60.0040.00718.05
8.2.50.0000.00818.07
8.2.40.0060.00318.34
8.2.30.0050.00218.19
8.2.20.0020.00517.73
8.2.10.0040.00418.19
8.2.00.0050.00317.78
8.1.280.0040.01125.92
8.1.270.0090.00022.18
8.1.260.0080.00026.35
8.1.250.0000.00828.09
8.1.240.0090.00022.13
8.1.230.0070.00319.11
8.1.220.0040.00417.74
8.1.210.0060.00318.77
8.1.200.0070.00417.47
8.1.190.0030.00617.47
8.1.180.0000.00918.10
8.1.170.0040.00418.59
8.1.160.0040.00421.95
8.1.150.0000.00718.82
8.1.140.0070.00017.32
8.1.130.0050.00317.82
8.1.120.0000.00717.38
8.1.110.0040.00417.42
8.1.100.0000.00717.44
8.1.90.0030.00317.36
8.1.80.0070.00017.30
8.1.70.0040.00417.43
8.1.60.0080.00017.61
8.1.50.0000.00917.50
8.1.40.0040.00417.55
8.1.30.0030.00617.66
8.1.20.0070.00017.56
8.1.10.0000.00817.54
8.1.00.0040.00417.52
8.0.300.0000.00718.77
8.0.290.0040.00416.75
8.0.280.0000.00818.44
8.0.270.0000.00717.25
8.0.260.0070.00017.26
8.0.250.0040.00416.88
8.0.240.0000.00716.84
8.0.230.0000.00716.81
8.0.220.0000.00816.78
8.0.210.0000.00816.72
8.0.200.0030.00316.92
8.0.190.0040.00416.84
8.0.180.0000.00716.90
8.0.170.0000.00816.86
8.0.160.0000.00816.79
8.0.150.0040.00416.78
8.0.140.0040.00416.65
8.0.130.0000.00613.23
8.0.120.0040.00416.82
8.0.110.0040.00416.89
8.0.100.0040.00416.75
8.0.90.0030.00616.82
8.0.80.0150.00416.86
8.0.70.0000.00716.88
8.0.60.0040.00416.72
8.0.50.0050.00316.71
8.0.30.0060.01217.30
8.0.20.0130.01317.40
8.0.10.0040.00417.09
8.0.00.0100.01116.62
7.4.330.0020.00215.20
7.4.320.0040.00416.59
7.4.300.0030.00316.61
7.4.290.0030.00316.53
7.4.280.0000.00816.59
7.4.270.0030.00316.59
7.4.260.0070.00016.43
7.4.250.0040.00416.44
7.4.240.0000.00716.54
7.4.230.0000.00716.51
7.4.220.0030.01616.51
7.4.210.0000.01516.59
7.4.200.0040.00416.35
7.4.160.0070.01016.61
7.4.150.0040.01517.40
7.4.140.0100.00717.86
7.4.130.0110.00716.59
7.4.120.0070.01016.41
7.4.110.0040.01416.37
7.4.100.0110.00716.48
7.4.90.0140.00316.34
7.4.80.0150.00319.39
7.4.70.0070.01016.58
7.4.60.0060.00916.54
7.4.50.0060.00316.45
7.4.40.0100.00716.41
7.4.30.0170.00016.50
7.4.00.0160.00015.02
7.3.330.0030.00312.94
7.3.320.0020.00213.10
7.3.310.0030.00316.17
7.3.300.0070.00016.24
7.3.290.0060.00916.21
7.3.280.0090.00716.23
7.3.270.0090.00917.40
7.3.260.0080.00916.18
7.3.250.0120.00716.28
7.3.240.0080.01716.32
7.3.230.0050.01316.39
7.3.210.0120.00916.43
7.3.200.0150.00619.39
7.3.190.0120.00616.55
7.3.180.0090.00916.60
7.3.170.0100.00716.58
7.3.160.0090.01216.33
7.3.10.0080.00716.61
7.3.00.0020.01116.76
7.2.330.0120.00616.62
7.2.320.0140.00416.47
7.2.310.0030.01716.41
7.2.300.0120.00916.45
7.2.290.0050.01316.90
7.2.130.0020.00916.82
7.2.120.0070.00616.91
7.2.110.0040.01016.87
7.2.100.0070.00816.96
7.2.90.0060.00916.98
7.2.80.0040.00916.96
7.2.70.0070.00816.88
7.2.60.0070.00816.82
7.2.50.0030.01116.88
7.2.40.0040.00916.90
7.2.30.0060.00717.00
7.2.20.0120.00216.81
7.2.10.0080.00716.93
7.2.00.0040.00816.83
7.1.250.0100.00615.74
7.1.240.0080.00415.79
7.1.230.0030.00915.54
7.1.220.0040.00815.38
7.1.210.0000.01715.87
7.1.200.0250.00315.58
7.1.190.0000.01215.50
7.1.180.0070.00715.82
7.1.170.0030.01015.58
7.1.160.0080.00415.51
7.1.150.0040.00415.86
7.1.140.0090.00315.84
7.1.130.0030.00615.84
7.1.120.0060.00315.71
7.1.110.0060.00315.77
7.1.100.0080.00316.86
7.1.90.0030.00915.54
7.1.80.0110.00415.73
7.1.70.0020.00616.50
7.1.60.0070.01017.43
7.1.50.0030.01316.37
7.1.40.0080.00315.40
7.1.30.0030.01015.88
7.1.20.0040.00715.67
7.1.10.0030.00915.84
7.1.00.0030.04418.94
7.0.330.0130.00315.29
7.0.320.0040.00815.41
7.0.310.0100.00315.28
7.0.300.0030.00615.27
7.0.290.0060.00315.11
7.0.280.0040.00715.30
7.0.270.0070.00715.25
7.0.260.0030.01015.03
7.0.250.0030.01015.45
7.0.240.0120.00015.59
7.0.230.0030.01015.09
7.0.220.0070.00715.25
7.0.210.0060.01015.29
7.0.200.0040.00515.87
7.0.190.0040.00415.31
7.0.180.0030.01015.48
7.0.170.0080.00815.14
7.0.160.0040.01115.27
7.0.150.0120.00015.24
7.0.140.0020.03918.79
7.0.130.0090.00615.02
7.0.120.0130.00015.10
7.0.110.0030.00915.30
7.0.100.0030.00915.12
7.0.90.0060.00615.20
7.0.80.0100.00315.55
7.0.70.0040.00715.05
7.0.60.0090.02717.48
7.0.50.0050.04616.64
7.0.40.0050.02616.76
7.0.30.0120.02216.58
7.0.20.0180.03816.75
7.0.10.0060.02516.70
7.0.00.0080.02016.78
5.6.380.0110.00314.48
5.6.370.0000.01514.24
5.6.360.0000.01814.51
5.6.350.0070.00714.16
5.6.340.0160.00414.35
5.6.330.0140.00814.61
5.6.320.0080.00814.14
5.6.310.0110.00614.18
5.6.300.0060.01214.34
5.6.290.0110.00414.28
5.6.280.0100.00514.13
5.6.270.0090.00414.38
5.6.260.0110.00014.52
5.6.250.0040.01214.29
5.6.240.0100.00214.14
5.6.230.0060.01214.46
5.6.220.0090.00914.44
5.6.210.0060.04617.53
5.6.200.0070.02716.15
5.6.190.0050.02517.45
5.6.180.0200.04117.32
5.6.170.0100.03417.22
5.6.160.0080.03817.35
5.6.150.0070.03116.15
5.6.140.0100.03916.22
5.6.130.0090.04316.18
5.6.120.0130.03717.69
5.6.110.0100.02317.62
5.6.100.0100.02417.54
5.6.90.0070.02317.69
5.6.80.0050.04817.40
5.6.70.0100.00714.25
5.6.60.0040.00914.31
5.6.50.0000.01614.44
5.6.40.0080.00414.01
5.6.30.0070.01014.32
5.6.20.0030.00614.15
5.6.10.0040.01114.00
5.6.00.0050.00514.32
5.5.380.0030.00610.88
5.5.370.0000.00811.12
5.5.360.0060.00610.65
5.5.350.0090.03815.77
5.5.340.0110.02514.43
5.5.330.0050.04815.69
5.5.320.0190.04315.55
5.5.310.0170.04015.49
5.5.300.0120.02214.37
5.5.290.0030.02314.34
5.5.280.0150.03815.94
5.5.270.0070.04015.70
5.5.260.0050.04515.84
5.5.250.0090.03115.67
5.5.240.0120.02515.53
5.5.230.0090.00310.93
5.5.220.0000.00810.61
5.5.210.0070.00310.88
5.5.200.0090.00310.74
5.5.190.0040.00711.09
5.5.180.0070.00410.87
5.5.170.0060.00611.01
5.5.160.0060.00310.66
5.5.150.0040.00910.61
5.5.140.0060.00611.08
5.5.130.0060.00610.86
5.5.120.0080.00510.71
5.5.110.0000.01411.12
5.5.100.0130.00010.64
5.5.90.0100.00010.85
5.5.80.0060.00610.76
5.5.70.0070.00410.75
5.5.60.0090.00311.01
5.5.50.0070.00410.64
5.5.40.0060.00610.80
5.5.30.0120.00010.90
5.5.20.0030.00710.75
5.5.10.0100.00310.60
5.5.00.0000.01210.66
5.4.450.0060.02315.26
5.4.440.0230.02315.12
5.4.430.0210.02015.22
5.4.420.0380.00115.09
5.4.410.0370.00115.21
5.4.400.0410.00015.09
5.4.390.0380.00314.94
5.4.380.0400.00315.20
5.4.370.0360.00214.96
5.4.360.0320.00715.07
5.4.350.0410.00014.93
5.4.340.0380.00215.05
5.4.330.0130.00511.10
5.4.320.0070.02111.76
5.4.310.0090.02111.70
5.4.300.0110.02511.79
5.4.290.0080.02211.65
5.4.280.0090.02111.63
5.4.270.0050.02211.76
5.4.260.0090.02011.61
5.4.250.0080.02811.61
5.4.240.0060.02511.60
5.4.230.0060.02311.79
5.4.220.0050.02611.64
5.4.210.0060.02311.75
5.4.200.0080.02411.69
5.4.190.0100.02011.70
5.4.180.0090.02511.68
5.4.170.0110.01911.55
5.4.160.0100.02411.63
5.4.150.0080.02411.65
5.4.140.0100.02711.45
5.4.130.0100.02211.61
5.4.120.0110.02011.40
5.4.110.0060.02411.36
5.4.100.0080.02011.46
5.4.90.0060.02211.59
5.4.80.0040.02511.45
5.4.70.0040.02411.31
5.4.60.0090.02411.54
5.4.50.0060.02211.54
5.4.40.0070.02111.49
5.4.30.0070.02111.40
5.4.20.0080.02611.55
5.4.10.0080.02111.53
5.4.00.0110.02111.18
5.3.290.0090.02211.53
5.3.280.0080.02211.53
5.3.270.0100.01911.54
5.3.260.0090.02211.59
5.3.250.0130.01611.59
5.3.240.0060.02611.51
5.3.230.0090.02011.59
5.3.220.0080.02011.61
5.3.210.0070.03011.53
5.3.200.0080.02511.59
5.3.190.0080.02311.47
5.3.180.0090.02011.50
5.3.170.0090.02211.58
5.3.160.0070.02111.60
5.3.150.0070.02111.59
5.3.140.0110.01811.55
5.3.130.0090.02111.54
5.3.120.0070.02311.63
5.3.110.0110.01911.56
5.3.100.0050.02511.33
5.3.90.0070.02511.17
5.3.80.0080.02311.16
5.3.70.0100.01811.16
5.3.60.0050.02311.22
5.3.50.0080.02211.26
5.3.40.0020.02411.19
5.3.30.0080.02411.20
5.3.20.0060.02011.04
5.3.10.0050.02310.98
5.3.00.0070.01910.97
5.2.170.0070.0179.72
5.2.160.0070.0169.72
5.2.150.0090.0149.72
5.2.140.0050.0199.72
5.2.130.0060.0209.70
5.2.120.0040.0179.70
5.2.110.0040.0209.71
5.2.100.0080.0149.70
5.2.90.0070.0229.70
5.2.80.0070.0169.70
5.2.70.0040.0179.70
5.2.60.0080.0149.68
5.2.50.0040.0169.66
5.2.40.0050.0169.65
5.2.30.0060.0159.64
5.2.20.0450.01810.55
5.2.10.0420.02510.54
5.2.00.0320.02610.52
5.1.60.0350.02210.14
5.1.50.0230.02110.11
5.1.40.0470.02310.15
5.1.30.0420.02310.29
5.1.20.0390.01810.31
5.1.10.0350.02110.14
5.1.00.0420.02210.18
5.0.50.0210.0159.44
5.0.40.0250.0219.39
5.0.30.0270.0239.39
5.0.20.0190.0169.39
5.0.10.0270.0139.39
5.0.00.0240.0259.39
4.4.90.0120.0159.41
4.4.80.0180.0159.41
4.4.70.0270.0089.41
4.4.60.0160.0169.41
4.4.50.0190.0119.41
4.4.40.0050.0239.41
4.4.30.0190.0119.39
4.4.20.0070.0149.39
4.4.10.0200.0159.39
4.4.00.0200.0209.39
4.3.110.0220.0169.39
4.3.100.0270.0149.39
4.3.90.0260.0119.39
4.3.80.0170.0199.39
4.3.70.0260.0109.39
4.3.60.0180.0169.39
4.3.50.0170.0159.39
4.3.40.0200.0189.39
4.3.30.0100.0159.39
4.3.20.0140.0129.39
4.3.10.0150.0149.39
4.3.00.0120.0129.39

preferences:
42.13 ms | 401 KiB | 5 Q