3v4l.org

run code in 300+ PHP versions simultaneously
<?php session_start(); $_SESSION = array('a' => 5, 'b' => 6); var_dump(session_encode());

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)
8.3.70.0120.00316.50
8.3.60.0120.00916.63
8.3.50.0080.01021.19
8.3.40.0110.01118.70
8.3.30.0060.01018.64
8.3.20.0080.00020.18
8.3.10.0050.00323.64
8.3.00.0050.00223.79
8.2.180.0040.01218.48
8.2.170.0070.01322.96
8.2.160.0200.00020.46
8.2.150.0070.00724.18
8.2.140.0060.00324.66
8.2.130.0040.00419.95
8.2.120.0000.00826.35
8.2.110.0070.00322.12
8.2.100.0100.00018.03
8.2.90.0000.00819.30
8.2.80.0030.00617.97
8.2.70.0080.00017.48
8.2.60.0040.00417.93
8.2.50.0060.00318.07
8.2.40.0080.00420.57
8.2.30.0000.00819.45
8.2.20.0000.00717.73
8.2.10.0080.00318.00
8.2.00.0080.00018.18
8.1.280.0130.00725.92
8.1.270.0080.00018.96
8.1.260.0030.00628.09
8.1.250.0040.00428.09
8.1.240.0060.00620.77
8.1.230.0000.01119.07
8.1.220.0040.00417.75
8.1.210.0080.00018.77
8.1.200.0090.00017.22
8.1.190.0080.00017.35
8.1.180.0040.00418.10
8.1.170.0030.00618.64
8.1.160.0040.00420.81
8.1.150.0050.00219.02
8.1.140.0070.00319.63
8.1.130.0040.00417.66
8.1.120.0040.00417.48
8.1.110.0000.00817.45
8.1.100.0000.00717.44
8.1.90.0040.00817.56
8.1.80.0040.00417.47
8.1.70.0030.00317.48
8.1.60.0100.00317.62
8.1.50.0040.00417.58
8.1.40.0030.00617.53
8.1.30.0110.00017.62
8.1.20.0030.00517.70
8.1.10.0050.00217.47
8.1.00.0060.00317.39
8.0.300.0000.00818.77
8.0.290.0030.00616.75
8.0.280.0000.00718.50
8.0.270.0000.00717.23
8.0.260.0060.00017.23
8.0.250.0040.00416.88
8.0.240.0000.00816.83
8.0.230.0080.00016.85
8.0.220.0050.00316.86
8.0.210.0040.00416.83
8.0.200.0020.00516.85
8.0.190.0070.00016.86
8.0.180.0040.00416.85
8.0.170.0050.00316.97
8.0.160.0000.00716.88
8.0.150.0340.00716.99
8.0.140.0040.00716.81
8.0.130.0030.00313.36
8.0.120.0080.00016.91
8.0.110.0080.00016.88
8.0.100.0040.00416.73
8.0.90.0040.00416.71
8.0.80.0140.00816.90
8.0.70.0040.00416.77
8.0.60.0050.00316.72
8.0.50.0070.00016.86
8.0.30.0130.00916.94
8.0.20.0100.00817.40
8.0.10.0030.00517.06
8.0.00.0100.01116.68
7.4.330.0050.00016.75
7.4.320.0000.00616.61
7.4.300.0000.00716.62
7.4.290.0040.00416.50
7.4.280.0120.00016.60
7.4.270.0030.00616.60
7.4.260.0000.00716.44
7.4.250.0040.00416.40
7.4.240.0010.00616.48
7.4.230.0070.00016.63
7.4.220.0090.00916.48
7.4.210.0120.00716.52
7.4.200.0000.00716.68
7.4.160.0130.00316.63
7.4.150.0040.01517.40
7.4.140.0130.00917.86
7.4.130.0120.00616.60
7.4.120.0130.00816.63
7.4.110.0100.00716.52
7.4.100.0030.01416.66
7.4.90.0130.00716.36
7.4.80.0160.00319.39
7.4.70.0060.01016.43
7.4.60.0130.00316.58
7.4.50.0060.00616.50
7.4.40.0130.00716.46
7.4.30.0080.00816.20
7.4.00.0080.01015.01
7.3.330.0020.00212.98
7.3.320.0030.00212.97
7.3.310.0030.00316.14
7.3.300.0070.00016.16
7.3.290.0040.00416.06
7.3.280.0080.01016.13
7.3.270.0070.01017.40
7.3.260.0070.01116.67
7.3.250.0110.00616.37
7.3.240.0090.01316.26
7.3.230.0070.01016.39
7.3.210.0000.01616.31
7.3.200.0040.01519.39
7.3.190.0090.00916.26
7.3.180.0100.00616.15
7.3.170.0060.01816.32
7.3.160.0040.01216.37
7.3.120.0100.01014.77
7.3.110.0160.00315.00
7.3.100.0070.00714.68
7.3.90.0030.01314.83
7.3.80.0070.01114.63
7.3.70.0000.01314.69
7.3.60.0080.00814.75
7.3.50.0110.00414.50
7.3.40.0070.01114.77
7.3.30.0090.00014.75
7.3.20.0070.00316.62
7.3.10.0090.00516.34
7.3.00.0030.01016.56
7.2.330.0160.00316.61
7.2.320.0120.00616.42
7.2.310.0070.01016.23
7.2.300.0070.01016.70
7.2.290.0070.01016.42
7.2.250.0040.01515.01
7.2.240.0140.00315.08
7.2.230.0090.00614.86
7.2.220.0030.01615.01
7.2.210.0140.00414.94
7.2.200.0000.01315.08
7.2.190.0070.00714.93
7.2.180.0060.00915.10
7.2.170.0060.01015.00
7.2.160.0070.00714.85
7.2.150.0130.00016.79
7.2.140.0060.00916.89
7.2.130.0070.00316.80
7.2.120.0110.00516.73
7.2.110.0050.01016.61
7.2.100.0090.00916.63
7.2.90.0120.00516.81
7.2.80.0050.00916.54
7.2.70.0160.00816.76
7.2.60.0070.00816.91
7.2.50.0070.00916.77
7.2.40.0110.00816.70
7.2.30.0140.00816.86
7.2.20.0120.00316.81
7.2.10.0150.00216.93
7.2.00.0090.00617.37
7.1.330.0000.01715.77
7.1.320.0090.00915.29
7.1.310.0100.00315.43
7.1.300.0040.01115.75
7.1.290.0080.00415.59
7.1.280.0030.01015.36
7.1.270.0100.00315.57
7.1.260.0000.01215.84
7.1.250.0060.00615.74
7.1.240.0090.00615.64
7.1.230.0080.00615.78
7.1.220.0060.00715.73
7.1.210.0100.00915.51
7.1.200.0120.00515.67
7.1.190.0140.00715.67
7.1.180.0130.00515.56
7.1.170.0140.00815.69
7.1.160.0110.00715.42
7.1.150.0110.00515.62
7.1.140.0090.00615.38
7.1.130.0110.00215.53
7.1.120.0140.00515.62
7.1.110.0070.00715.69
7.1.100.0080.00616.53
7.1.90.0140.00415.72
7.1.80.0070.00615.59
7.1.70.0190.00515.97
7.1.60.0090.01116.99
7.1.50.0140.00816.18
7.1.40.0090.00915.76
7.1.30.0130.00515.70
7.1.20.0080.00715.74
7.1.10.0070.01215.68
7.1.00.0060.03017.91
7.0.330.0040.00715.13
7.0.320.0000.01315.25
7.0.310.0090.00614.95
7.0.300.0070.00715.30
7.0.290.0070.00615.14
7.0.280.0110.00515.26
7.0.270.0190.00514.97
7.0.260.0120.00815.44
7.0.250.0120.00515.46
7.0.240.0150.00315.36
7.0.230.0080.00415.21
7.0.220.0180.00515.33
7.0.210.0240.00715.19
7.0.200.0090.00515.84
7.0.190.0090.00515.09
7.0.180.0220.00615.27
7.0.170.0070.00815.26
7.0.160.0050.00815.35
7.0.150.0070.00815.21
7.0.140.0160.00515.23
7.0.130.0040.00915.44
7.0.120.0040.00915.14
7.0.110.0190.00215.32
7.0.100.0110.00415.28
7.0.90.0120.00915.17
7.0.80.0050.01015.13
7.0.70.0070.00715.35
7.0.60.0110.01617.46
7.0.50.0160.01916.29
7.0.40.0040.03515.71
7.0.30.0160.01915.60
7.0.20.0200.02815.65
7.0.10.0060.03715.57
7.0.00.0060.02115.61
5.6.400.0060.00614.14
5.6.390.0030.01014.27
5.6.380.0050.00714.34
5.6.370.0110.00714.38
5.6.360.0090.00714.53
5.6.350.0120.00414.14
5.6.340.0160.00514.35
5.6.330.0080.00414.26
5.6.320.0150.00614.43
5.6.310.0060.01314.27
5.6.300.0080.00914.32
5.6.290.0090.00614.24
5.6.280.0040.00614.27
5.6.270.0010.01314.19
5.6.260.0080.00814.59
5.6.250.0040.01214.10
5.6.240.0090.00214.34
5.6.230.0090.00714.36
5.6.220.0120.00314.18
5.6.210.0140.02116.43
5.6.200.0080.03115.54
5.6.190.0070.03216.33
5.6.180.0210.02116.51
5.6.170.0120.02816.28
5.6.160.0040.03616.38
5.6.150.0070.03215.67
5.6.140.0110.03115.42
5.6.130.0070.03315.59
5.6.120.0070.02616.52
5.6.110.0070.03316.52
5.6.100.0070.02916.48
5.6.90.0130.02816.62
5.6.80.0040.02316.11
5.6.70.0090.00614.35
5.6.60.0100.00513.98
5.6.50.0050.00814.02
5.6.40.0070.00914.05
5.6.30.0110.00714.21
5.6.20.0100.00314.16
5.6.10.0100.00614.20
5.6.00.0080.00614.07
5.5.380.0050.00613.56
5.5.370.0030.01013.54
5.5.360.0080.00513.59
5.5.350.0080.01615.84
5.5.340.0090.01314.91
5.5.330.0080.01715.86
5.5.320.0230.02515.75
5.5.310.0150.02115.82
5.5.300.0060.01915.06
5.5.290.0070.02614.92
5.5.280.0060.01815.96
5.5.270.0080.03415.93
5.5.260.0100.02915.93
5.5.250.0100.03015.74
5.5.240.0090.02915.74
5.5.230.0040.01113.56
5.5.220.0070.00513.36
5.5.210.0050.00913.36
5.5.200.0100.00313.40
5.5.190.0050.01013.46
5.5.180.0080.00713.52
5.5.170.0060.00614.15
5.5.160.0120.00313.39
5.5.150.0060.00613.55
5.5.140.0090.00213.45
5.5.130.0050.00713.53
5.5.120.0080.00413.40
5.5.110.0020.01213.40
5.5.100.0080.00613.56
5.5.90.0110.00213.39
5.5.80.0090.00613.48
5.5.70.0040.00713.45
5.5.60.0060.00413.49
5.5.50.0050.01013.34
5.5.40.0050.01013.50
5.5.30.0070.00313.50
5.5.20.0070.00613.63
5.5.10.0080.00513.46
5.5.00.0060.00913.45

preferences:
51.89 ms | 401 KiB | 5 Q