3v4l.org

run code in 300+ PHP versions simultaneously
<?php session_start(); $_SESSION = array('a' => 5, 'b' => 'ee', 'c' => 55); var_dump($_SESSION); $str = session_encode(); var_dump($str); $str = str_replace('e', 'é', $str); var_dump($str); $_SESSION = array(); var_dump($_SESSION); session_decode($str); var_dump($_SESSION); $str = session_encode(); var_dump($str);

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)
8.3.60.0110.01118.55
8.3.50.0210.00918.15
8.3.40.0120.00318.67
8.3.30.0090.01218.43
8.3.20.0040.00418.81
8.3.10.0040.00420.36
8.3.00.0000.00817.50
8.2.180.0100.01016.63
8.2.170.0060.00922.96
8.2.160.0070.00722.07
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0070.00026.16
8.2.120.0030.00519.76
8.2.110.0110.00021.00
8.2.100.0080.00317.91
8.2.90.0040.00719.26
8.2.80.0030.00519.40
8.2.70.0000.00817.63
8.2.60.0060.00317.80
8.2.50.0050.00318.07
8.2.40.0000.00818.22
8.2.30.0080.00018.18
8.2.20.0000.00817.82
8.2.10.0030.00517.85
8.2.00.0030.00617.88
8.1.280.0170.00325.92
8.1.270.0030.00624.66
8.1.260.0000.00826.35
8.1.250.0080.00028.09
8.1.240.0130.01022.60
8.1.230.0120.00021.09
8.1.220.0000.00817.76
8.1.210.0030.00519.04
8.1.200.0060.00317.22
8.1.190.0050.00317.39
8.1.180.0030.00518.10
8.1.170.0000.00820.51
8.1.160.0000.00718.93
8.1.150.0070.00018.71
8.1.140.0030.00717.46
8.1.130.0030.00317.81
8.1.120.0040.00417.55
8.1.110.0040.00417.42
8.1.100.0030.00517.49
8.1.90.0040.00417.36
8.1.80.0000.00717.41
8.1.70.0050.00217.46
8.1.60.0000.00817.60
8.1.50.0060.00317.38
8.1.40.0030.00517.59
8.1.30.0040.00417.67
8.1.20.0060.00317.67
8.1.10.0000.00717.47
8.1.00.0040.00417.37
8.0.300.0000.00819.98
8.0.290.0070.00016.75
8.0.280.0070.00018.50
8.0.270.0030.00517.27
8.0.260.0030.00316.86
8.0.250.0040.00417.04
8.0.240.0070.00316.96
8.0.230.0000.00717.02
8.0.220.0000.00716.88
8.0.210.0000.00717.01
8.0.200.0070.00016.93
8.0.190.0000.00817.09
8.0.180.0000.00817.02
8.0.170.0050.00316.99
8.0.160.0050.00317.01
8.0.150.0040.00417.02
8.0.140.0030.00516.95
8.0.130.0030.00313.38
8.0.120.0050.00316.90
8.0.110.0000.00716.98
8.0.100.0040.00417.04
8.0.90.0070.00016.89
8.0.80.0160.00016.95
8.0.70.0000.00717.07
8.0.60.0040.00416.84
8.0.50.0030.00516.88
8.0.30.0130.01117.15
8.0.20.0150.00517.15
8.0.10.0040.00417.19
8.0.00.0100.00816.82
7.4.330.0000.00513.06
7.4.320.0000.00716.66
7.4.300.0000.00616.57
7.4.290.0060.00316.58
7.4.280.0000.00816.55
7.4.270.0050.00316.55
7.4.260.0050.00013.36
7.4.250.0030.00616.46
7.4.240.0070.00016.59
7.4.230.0000.00716.45
7.4.220.0060.01316.52
7.4.210.0060.01216.57
7.4.200.0020.00516.35
7.4.190.0050.00216.72
7.4.160.0120.00416.71
7.4.150.0110.00616.61
7.4.140.0090.01416.46
7.4.130.0120.00716.53
7.4.120.0140.00316.48
7.4.110.0000.01816.58
7.4.100.0130.00316.48
7.4.90.0130.00616.58
7.4.80.0050.01116.50
7.4.70.0090.00916.34
7.4.60.0100.01016.52
7.4.50.0060.00316.63
7.4.40.0040.00816.34
7.4.30.0070.01416.37
7.4.00.0030.01315.33
7.3.330.0000.00613.22
7.3.320.0060.00013.17
7.3.310.0030.00316.11
7.3.300.0000.00716.30
7.3.290.0090.01216.20
7.3.280.0120.00616.22
7.3.270.0190.00716.38
7.3.260.0120.00516.36
7.3.250.0090.00916.33
7.3.240.0100.00716.40
7.3.230.0140.00416.40
7.3.210.0070.01016.32
7.3.200.0170.00719.39
7.3.190.0190.00316.58
7.3.180.0060.00916.51
7.3.170.0000.01716.49
7.3.160.0120.00816.46
7.3.120.0030.00914.84
7.2.330.0110.00716.57
7.2.320.0120.00616.30
7.2.310.0050.01916.67
7.2.300.0090.00816.34
7.2.290.0060.01116.58
7.2.60.0130.00316.66
7.2.00.0000.01719.25
7.1.200.0070.00415.85
7.1.100.0000.01417.98
7.1.70.0000.00816.81
7.1.60.0090.01519.40
7.1.50.0100.01316.70
7.1.00.0030.07722.24
7.0.200.0030.00916.63
7.0.140.0030.07721.99
7.0.120.0030.05722.03
7.0.60.0500.05020.00
7.0.50.0100.06017.85
7.0.40.0070.06720.23
7.0.30.0370.07720.08
7.0.20.0200.04020.01
7.0.10.0230.07720.04
7.0.00.0030.07720.11
5.6.280.0070.07020.88
5.6.210.1030.06020.75
5.6.200.0100.08018.15
5.6.190.0100.08320.41
5.6.180.0300.05720.43
5.6.170.0300.03720.52
5.6.160.0030.09020.40
5.6.150.0070.08318.16
5.6.140.0070.07318.18
5.6.130.0100.05318.15
5.6.120.0130.08020.99
5.6.110.0030.04721.04
5.6.100.0170.08320.96
5.6.90.0070.05021.10
5.6.80.0070.07020.25
5.6.70.4230.03720.46
5.5.350.0330.06020.41
5.5.340.0030.03717.95
5.5.330.0100.03720.37
5.5.320.0270.05020.36
5.5.310.0270.06320.18
5.5.300.0130.07017.98
5.5.290.0070.08017.91
5.5.280.0070.03720.88
5.5.270.0030.07320.74
5.5.260.0000.08320.63
5.5.250.0200.07020.78
5.5.240.0070.05320.10
5.4.450.0330.07319.58
5.4.440.0200.05019.49
5.4.430.0300.06019.24
5.4.420.0400.05719.56
5.4.410.0300.06319.29
5.4.400.0270.03719.07
5.4.390.0130.03719.06
5.4.380.0130.03719.25
5.4.370.0170.03718.79
5.4.360.0130.03719.16
5.4.350.0130.03719.25
5.4.340.0170.03719.08
5.4.320.0130.04018.92
5.4.310.0130.03719.06
5.4.300.0130.03719.09
5.4.290.0100.04018.91
5.4.280.0130.03719.15
5.4.270.0200.03318.79
5.4.260.0100.04319.15
5.4.250.0130.03719.05
5.4.240.0230.03319.08
5.4.230.0100.04019.08
5.4.220.0130.04018.78
5.4.210.0170.03318.89
5.4.200.0100.04019.09
5.4.190.0130.04318.91
5.4.180.0230.06719.24
5.4.170.0200.06019.05
5.4.160.0170.04018.89
5.4.150.0270.07019.06
5.4.140.0200.04716.27
5.4.130.0200.06016.37
5.4.120.0230.05316.28
5.4.110.0370.06316.42
5.4.100.0230.06716.49
5.4.90.0270.07016.38
5.4.80.0530.05316.42
5.4.70.0200.06316.39
5.4.60.0230.06316.37
5.4.50.0200.06016.20
5.4.40.0230.04016.39
5.4.30.0300.06016.47
5.4.20.0230.06316.31
5.4.10.0300.06716.36
5.4.00.0170.04715.81
5.3.290.0100.04014.61
5.3.280.0170.03714.68
5.3.270.0300.06714.51
5.3.260.0200.04714.46
5.3.250.0230.04314.56
5.3.240.0170.08314.46
5.3.230.0330.05014.51
5.3.220.0270.03714.55
5.3.210.0230.07014.55
5.3.200.0570.05714.41
5.3.190.0300.05014.48
5.3.180.0300.06314.41
5.3.170.0300.05314.40
5.3.160.0230.06314.42
5.3.150.0270.06314.47
5.3.140.0200.04314.54
5.3.130.0170.04714.53
5.3.120.0200.04014.39
5.3.110.0200.04314.50
5.3.100.0270.06314.14
5.3.90.0270.04013.98
5.3.80.0230.04714.05
5.3.70.0330.04713.88
5.3.60.0200.04313.99
5.3.50.0200.05313.89
5.3.40.0270.05713.80
5.3.30.0330.06313.89
5.3.20.0170.04713.55
5.3.10.0230.05013.51
5.3.00.0370.05313.67
5.2.170.0230.02712.59
5.2.160.0170.05312.59
5.2.150.0230.03712.59
5.2.140.0270.06312.59
5.2.130.0200.04712.59
5.2.120.0230.05712.59
5.2.110.0130.03312.59
5.2.100.0300.03312.59
5.2.90.0130.04712.59
5.2.80.0130.05012.59
5.2.70.0170.03012.59
5.2.60.0170.03312.59
5.2.50.0270.05012.59
5.2.40.0170.05712.59
5.2.30.0230.05312.59
5.2.20.0130.05312.59
5.2.10.0170.04312.59
5.2.00.0170.04312.59
5.1.60.0270.04312.59
5.1.50.0370.03012.59
5.1.40.0170.04012.59
5.1.30.0170.05312.59
5.1.20.0130.05012.59
5.1.10.0130.05312.59
5.1.00.0170.04012.59
5.0.50.0100.03312.59
5.0.40.0100.03012.59
5.0.30.0100.05012.59
5.0.20.0130.03712.59
5.0.10.0070.03312.59
5.0.00.0070.05012.59
4.4.90.0070.03712.59
4.4.80.0070.03712.59
4.4.70.0070.03712.59
4.4.60.0170.01712.59
4.4.50.0100.03312.59
4.4.40.0100.04712.59
4.4.30.0130.02312.59
4.4.20.0100.03712.59
4.4.10.0070.02012.59
4.4.00.0100.05312.59
4.3.110.0070.03712.59
4.3.100.0030.02012.59
4.3.90.0070.04012.59
4.3.80.0030.05712.59
4.3.70.0100.03712.59
4.3.60.0070.03012.59
4.3.50.0070.03712.59
4.3.40.0100.04012.59
4.3.30.0030.04012.59
4.3.20.0070.02012.59
4.3.10.0000.02012.59
4.3.00.0070.01312.59

preferences:
50.67 ms | 401 KiB | 5 Q