3v4l.org

run code in 300+ PHP versions simultaneously
<?php session_start(); $_SESSION = array('a' => 5, 'b' => 'eeee', 'c' => 55); var_dump($_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)
8.3.40.0120.00318.73
8.3.30.0160.00718.56
8.3.20.0050.00318.64
8.3.10.0030.00520.48
8.3.00.0000.00917.25
8.2.170.0110.00422.96
8.2.160.0140.00322.27
8.2.150.0080.00024.18
8.2.140.0070.00024.66
8.2.130.0020.00526.16
8.2.120.0120.00619.77
8.2.110.0030.00622.10
8.2.100.0120.00017.78
8.2.90.0000.01019.17
8.2.80.0040.00417.90
8.2.70.0030.00517.63
8.2.60.0030.00517.91
8.2.50.0000.00818.07
8.2.40.0000.00818.09
8.2.30.0070.00018.14
8.2.20.0040.00417.95
8.2.10.0040.00417.70
8.2.00.0040.00417.75
8.1.270.0000.00824.66
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0070.00320.83
8.1.230.0070.00720.85
8.1.220.0030.00617.80
8.1.210.0050.00318.88
8.1.200.0000.01017.22
8.1.190.0040.00417.50
8.1.180.0090.00018.10
8.1.170.0040.00418.75
8.1.160.0070.00018.81
8.1.150.0040.00418.74
8.1.140.0080.00317.49
8.1.130.0030.00317.90
8.1.120.0040.00417.55
8.1.110.0000.00717.46
8.1.100.0040.00417.53
8.1.90.0040.00417.42
8.1.80.0050.00217.57
8.1.70.0050.00317.39
8.1.60.0080.00017.68
8.1.50.0080.00017.49
8.1.40.0040.00417.59
8.1.30.0030.00617.61
8.1.20.0000.00917.53
8.1.10.0000.00817.50
8.1.00.0040.00417.42
8.0.300.0070.00019.98
8.0.290.0040.00416.88
8.0.280.0000.00718.51
8.0.270.0030.00317.18
8.0.260.0000.00616.93
8.0.250.0040.00417.02
8.0.240.0000.00917.10
8.0.230.0000.00816.99
8.0.220.0000.00717.00
8.0.210.0040.00417.02
8.0.200.0000.00717.11
8.0.190.0040.00417.08
8.0.180.0000.00717.03
8.0.170.0060.00317.06
8.0.160.0070.00016.97
8.0.150.0050.00316.91
8.0.140.0080.00416.86
8.0.130.0030.00313.39
8.0.120.0070.00016.85
8.0.110.0070.00017.02
8.0.100.0020.00517.01
8.0.90.0070.00017.07
8.0.80.0100.00616.99
8.0.70.0000.00816.94
8.0.60.0000.00817.05
8.0.50.0040.00416.87
8.0.30.0090.01317.08
8.0.20.0100.01217.03
8.0.10.0000.00817.18
8.0.00.0060.01116.76
7.4.330.0050.00013.02
7.4.320.0030.00316.51
7.4.300.0030.00316.50
7.4.290.0070.00016.50
7.4.280.0000.00716.64
7.4.270.0030.00316.55
7.4.260.0060.00013.29
7.4.250.0000.00816.46
7.4.240.0000.00716.68
7.4.230.0070.00016.59
7.4.220.0070.01116.59
7.4.210.0090.00816.64
7.4.200.0000.00816.45
7.4.190.0030.00416.46
7.4.160.0080.00816.55
7.4.150.0130.00616.68
7.4.140.0130.00816.58
7.4.130.0080.01016.52
7.4.120.0130.00516.56
7.4.110.0090.00916.40
7.4.100.0070.01116.55
7.4.90.0110.00716.50
7.4.80.0080.00816.50
7.4.70.0100.00716.40
7.4.60.0110.00616.60
7.4.50.0040.00416.77
7.4.40.0060.00716.39
7.4.30.0030.01616.52
7.4.10.0060.01314.95
7.4.00.0100.00714.95
7.3.330.0000.00613.22
7.3.320.0030.00613.08
7.3.310.0000.00716.30
7.3.300.0030.00516.16
7.3.290.0070.01016.31
7.3.280.0110.00716.26
7.3.270.0100.00716.28
7.3.260.0100.00916.31
7.3.250.0060.01216.27
7.3.240.0140.00916.50
7.3.230.0130.00916.41
7.3.210.0250.00316.26
7.3.200.0040.01719.39
7.3.190.0100.00816.30
7.3.180.0060.00916.22
7.3.170.0030.01216.28
7.3.160.0100.00616.59
7.3.130.0060.01314.73
7.3.120.0070.00714.78
7.3.110.0130.00614.89
7.3.100.0030.00914.66
7.3.90.0090.00314.89
7.3.80.0090.00614.48
7.3.70.0030.01014.93
7.3.60.0060.00314.67
7.3.50.0060.00614.88
7.3.40.0120.00314.87
7.3.30.0070.01014.84
7.3.20.0080.00416.32
7.3.10.0090.00316.45
7.3.00.0120.00316.57
7.2.330.0090.00916.54
7.2.320.0090.00916.67
7.2.310.0130.00916.63
7.2.300.0030.01416.62
7.2.290.0060.01016.34
7.2.260.0060.00914.86
7.2.250.0070.01015.28
7.2.240.0070.00714.93
7.2.230.0070.00414.89
7.2.220.0000.01615.27
7.2.210.0030.00914.72
7.2.200.0070.00714.67
7.2.190.0060.00914.87
7.2.180.0060.00915.03
7.2.170.0110.00315.04
7.2.160.0100.00314.57
7.2.150.0080.00816.95
7.2.140.0070.00716.87
7.2.130.0060.00916.47
7.2.120.0060.00916.64
7.2.110.0040.00716.90
7.2.100.0030.01316.75
7.2.90.0070.00316.91
7.2.80.0000.00916.64
7.2.70.0130.00616.53
7.2.60.0050.01116.79
7.2.50.0080.00416.80
7.2.40.0030.01316.80
7.2.30.0060.00916.78
7.2.20.0090.00616.84
7.2.10.0070.01016.84
7.2.00.0080.00818.26
7.1.330.0120.00015.68
7.1.320.0100.00315.67
7.1.310.0070.00715.70
7.1.300.0060.00315.48
7.1.290.0070.00715.55
7.1.280.0100.00615.72
7.1.270.0060.00615.86
7.1.260.0030.01015.63
7.1.250.0000.01015.82
7.1.240.0040.00415.77
7.1.230.0080.00415.48
7.1.220.0030.01315.79
7.1.210.0000.00815.88
7.1.200.0050.01115.64
7.1.190.0070.01015.66
7.1.180.0070.01015.84
7.1.170.0030.01015.82
7.1.160.0030.01315.74
7.1.150.0120.00315.44
7.1.140.0030.00615.68
7.1.130.0090.00415.82
7.1.120.0040.01115.93
7.1.110.0030.01015.55
7.1.100.0080.00716.85
7.1.90.0000.01315.63
7.1.80.0000.01115.71
7.1.70.0020.00616.36
7.1.60.0060.01317.64
7.1.50.0050.01016.28
7.1.40.0030.00915.82
7.1.30.0060.00315.61
7.1.20.0000.01215.67
7.1.10.0040.01115.85
7.1.00.0020.04419.06
7.0.330.0000.01015.35
7.0.320.0030.00915.13
7.0.310.0060.00915.37
7.0.300.0060.00315.42
7.0.290.0030.01315.58
7.0.280.0000.01015.41
7.0.270.0000.01615.32
7.0.260.0090.00915.32
7.0.250.0050.00515.06
7.0.240.0030.01015.50
7.0.230.0070.00715.17
7.0.220.0040.00815.34
7.0.210.0050.00515.29
7.0.200.0040.00815.89
7.0.190.0100.00315.30
7.0.180.0000.01015.34
7.0.170.0030.00615.54
7.0.160.0060.00615.42
7.0.150.0070.00714.99
7.0.140.0070.03518.77
7.0.130.0000.01215.41
7.0.120.0030.03818.61
7.0.110.0030.00615.27
7.0.100.0080.00815.46
7.0.90.0120.00615.32
7.0.80.0070.01015.28
7.0.70.0030.01015.22
7.0.60.0250.03417.66
7.0.50.0100.04516.67
7.0.40.0050.04415.52
7.0.30.0070.02615.54
7.0.20.0070.02915.57
7.0.10.0100.04215.56
7.0.00.0050.04415.53
5.6.400.0090.00614.13
5.6.390.0060.00714.21
5.6.380.0060.00614.62
5.6.370.0030.00914.30
5.6.360.0100.00314.13
5.6.350.0090.00614.55
5.6.340.0110.00414.05
5.6.330.0060.01014.06
5.6.320.0040.00714.36
5.6.310.0040.01214.29
5.6.300.0070.01114.49
5.6.290.0030.01314.30
5.6.280.0030.04117.70
5.6.270.0070.01014.16
5.6.260.0000.01314.45
5.6.250.0030.01414.53
5.6.240.0090.00914.20
5.6.230.0100.00314.16
5.6.220.0090.00614.33
5.6.210.0660.03117.40
5.6.200.0050.03116.20
5.6.190.0090.04216.19
5.6.180.0070.04416.17
5.6.170.0060.04516.25
5.6.160.0080.04316.21
5.6.150.0070.03416.27
5.6.140.0030.04316.24
5.6.130.0070.04716.33
5.6.120.0080.03916.33
5.6.110.0090.03016.22
5.6.100.0030.03016.14
5.6.90.0070.04516.20
5.6.80.0050.03816.03
5.6.70.0080.02415.92
5.6.60.0120.01815.84
5.6.50.0070.03715.99
5.6.40.0090.03915.95
5.6.30.0050.02515.83
5.6.20.0060.04115.87
5.6.10.0080.03615.90
5.6.00.0050.02715.86
5.5.380.0080.00814.53
5.5.370.0130.00314.08
5.5.360.0000.01314.11
5.5.350.0220.03617.40
5.5.340.0000.03516.16
5.5.330.0040.03916.02
5.5.320.0110.03516.06
5.5.310.0080.02816.12
5.5.300.0090.03916.29
5.5.290.0060.04316.25
5.5.280.0050.02516.21
5.5.270.0080.02315.94
5.5.260.0040.03416.10
5.5.250.0130.04015.96
5.5.240.0080.04315.67
5.5.230.0060.02215.73
5.5.220.0100.03815.58
5.5.210.0030.03615.75
5.5.200.0120.03815.85
5.5.190.0120.03215.73
5.5.180.0030.04615.82
5.5.170.0080.00414.43
5.5.160.0030.04715.55
5.5.150.0100.03215.79
5.5.140.0120.03515.78
5.5.130.0030.02615.61
5.5.120.0030.03815.73
5.5.110.0070.03615.82
5.5.100.0080.02015.67
5.5.90.0080.02815.70
5.5.80.0100.04115.80
5.5.70.0070.04215.69
5.5.60.0070.03315.76
5.5.50.0070.02215.71
5.5.40.0050.04215.84
5.5.30.0040.02515.66
5.5.20.0100.03815.80
5.5.10.0120.02715.74
5.5.00.0160.03315.53
5.4.450.0080.04215.06
5.4.440.0080.03015.11
5.4.430.0000.03215.12
5.4.420.0080.04015.00
5.4.410.0110.03215.05
5.4.400.0000.02814.83
5.4.390.0080.02015.02
5.4.380.0030.02315.05
5.4.370.0020.03015.05
5.4.360.0080.03714.96
5.4.350.0080.04015.04
5.4.340.0080.03815.04
5.4.330.0040.00810.91
5.4.320.0070.03514.88
5.4.310.0120.02714.84
5.4.300.0050.04214.82
5.4.290.0030.03414.96
5.4.280.0020.02615.06
5.4.270.0030.03215.01
5.4.260.0020.03014.87
5.4.250.0050.02214.79
5.4.240.0080.03814.92
5.4.230.0050.03614.83
5.4.220.0030.03215.19
5.4.210.0050.02214.81
5.4.200.0050.03814.90
5.4.190.0100.02815.05
5.4.180.0050.03515.08
5.4.170.0080.02815.05
5.4.160.0050.04114.89
5.4.150.0030.03614.94
5.4.140.0080.03813.63
5.4.130.0070.02513.66
5.4.120.0080.02713.72
5.4.110.0070.03713.69
5.4.100.0070.02213.54
5.4.90.0050.02813.71
5.4.80.0060.03213.42
5.4.70.0070.03913.47
5.4.60.0060.04313.70
5.4.50.0100.02713.70
5.4.40.0000.04113.67
5.4.30.0030.02313.64
5.4.20.0020.02913.52
5.4.10.0050.04113.44
5.4.00.0050.03213.38
5.3.290.0040.02412.54
5.3.280.0100.03812.45
5.3.270.0050.02512.42
5.3.260.0000.03012.44
5.3.250.0020.04412.46
5.3.240.0050.04212.40
5.3.230.0080.03812.55
5.3.220.0050.04212.41
5.3.210.0050.03512.39
5.3.200.0030.04212.46
5.3.190.0070.02212.38
5.3.180.0020.04212.43
5.3.170.0080.02412.51
5.3.160.0030.04012.53
5.3.150.0060.04312.42
5.3.140.0050.04012.32
5.3.130.0120.03512.43
5.3.120.0030.04112.44
5.3.110.0070.02212.38
5.3.100.0070.03012.21
5.3.90.0070.03812.29
5.3.80.0070.03512.14
5.3.70.0070.02912.19
5.3.60.0080.03812.10
5.3.50.0070.03212.15
5.3.40.0060.03912.17
5.3.30.0100.02812.17
5.3.20.0030.02512.06
5.3.10.0080.03511.88
5.3.00.0020.02711.90
5.2.170.0030.06311.09
5.2.160.0100.05711.13
5.2.150.0070.05710.92
5.2.140.0100.02711.14
5.2.130.0030.03010.93
5.2.120.0030.03010.99
5.2.110.0030.03711.10
5.2.100.0100.03011.09
5.2.90.0070.06011.08
5.2.80.0000.06710.93
5.2.70.0000.04711.06
5.2.60.0030.06011.09
5.2.50.0070.03010.96
5.2.40.0100.05710.94
5.2.30.0070.06310.86
5.2.20.0000.05710.86
5.2.10.0000.04010.85
5.2.00.0030.03710.73
5.1.60.0000.0579.91
5.1.50.0030.04010.02
5.1.40.0030.02710.00
5.1.30.0030.03010.28
5.1.20.0070.05310.25
5.1.10.0070.03010.01
5.1.00.0030.05710.14
5.0.50.0030.0278.52
5.0.40.0030.0478.48
5.0.30.0070.0478.16
5.0.20.0030.0478.11
5.0.10.0000.0238.21
5.0.00.0030.0377.99
4.4.90.0000.0407.69
4.4.80.0000.0277.69
4.4.70.0000.0407.69
4.4.60.0030.0377.69
4.4.50.0030.0337.69
4.4.40.0030.0407.69
4.4.30.0030.0177.69
4.4.20.0070.0277.69
4.4.10.0070.0277.69
4.4.00.0070.0537.69
4.3.110.0070.0337.69
4.3.100.0070.0237.69
4.3.90.0000.0277.69
4.3.80.0070.0477.69
4.3.70.0000.0207.69
4.3.60.0030.0137.69
4.3.50.0070.0337.69
4.3.40.0000.0507.69
4.3.30.0030.0337.69
4.3.20.0030.0337.69
4.3.10.0030.0337.69
4.3.00.0000.0377.69

preferences:
47.72 ms | 400 KiB | 5 Q