3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Authenticator { protected $isloggedin; protected $session; public function __construct(Session $session) { $this->session = $session; // $isl = $session->get('isloggedin'); if ( ! empty($session->get('isloggedin')) && $session->get('isloggedin') == true) { $this->isloggedin = true; } $uid = $session->get('userid'); if ( ! empty($uid) && (int) $uid == $uid ) { $this->userid = (int) $uid; } } public function authenticate($username, $password) { if ($this->isloggedin) return true; if ( empty($username)) return false; if ( empty($password)) return false; // ... return false; } public function logout() { $this->isloggedin = false; $this->userid = 0; $this->session->del('isloggedin'); $this->session->del('userid'); } public function isloggedin() { return $this->isloggedin; } } interface Session { public function set($key, $val=true); public function del($key, $val=false); public function get($key); } class BasicSession implements Session { protected $session = array(); private function _construct(array $s) { if ( ! session_start() ) { throw new Exception('Could not initiate web session'); } $this->session = $_SESSION; } public function set($key, $val=true) { $this->session[$key] = $val; } public function del($key, $val=false) { if (isset($this->session[$key])) { $this->session[$key] = $val; unset($this->session[$key]); } } public function get($key) { if (isset($this->session[$key])) { return $this->session[$key]; } return false; } } try { $sess = new BasicSession(); $auth = new Authenticator($sess); } catch (Exception $e) { die('System go KA-BOOM! ' . $e->getMessage()); }

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)
8.3.70.0090.00618.43
8.3.60.0120.00918.43
8.3.50.0140.00421.33
8.3.40.0040.01118.84
8.3.30.0110.00719.04
8.3.20.0040.00420.38
8.3.10.0040.00422.04
8.3.00.0000.00822.57
8.2.190.0110.00716.63
8.2.180.0090.00616.50
8.2.170.0040.01122.96
8.2.160.0100.00319.34
8.2.150.0000.00824.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0040.00419.77
8.2.110.0090.00022.20
8.2.100.0120.00018.09
8.2.90.0000.00719.27
8.2.80.0040.00417.97
8.2.70.0080.00017.75
8.2.60.0040.00418.03
8.2.50.0040.00418.07
8.2.40.0000.00818.34
8.2.30.0060.00618.16
8.2.20.0050.00317.79
8.2.10.0060.00317.73
8.2.00.0090.00017.70
8.1.280.0140.00325.92
8.1.270.0050.00322.18
8.1.260.0060.00326.35
8.1.250.0080.00028.09
8.1.240.0040.00423.88
8.1.230.0040.00719.02
8.1.220.0040.00417.74
8.1.210.0090.00018.77
8.1.200.0000.01017.60
8.1.190.0080.00017.66
8.1.180.0030.00520.44
8.1.170.0030.00618.71
8.1.160.0000.00722.10
8.1.150.0030.00618.68
8.1.140.0040.00417.48
8.1.130.0000.00717.79
8.1.120.0040.00417.48
8.1.110.0030.00517.53
8.1.100.0070.00017.39
8.1.90.0040.00417.55
8.1.80.0000.00717.51
8.1.70.0000.00717.42
8.1.60.0040.00417.52
8.1.50.0040.00417.48
8.1.40.0000.00817.57
8.1.30.0040.00417.61
8.1.20.0000.00817.73
8.1.10.0000.00717.61
8.1.00.0030.00617.45
8.0.300.0080.00018.77
8.0.290.0040.00417.43
8.0.280.0070.00018.50
8.0.270.0030.00317.23
8.0.260.0030.00316.89
8.0.250.0000.00717.04
8.0.240.0000.00917.08
8.0.230.0030.00316.95
8.0.220.0030.00316.99
8.0.210.0000.00716.92
8.0.200.0000.00717.09
8.0.190.0060.00317.17
8.0.180.0040.00417.04
8.0.170.0000.00816.92
8.0.160.0040.00417.04
8.0.150.0040.00416.96
8.0.140.0000.00716.90
8.0.130.0050.00013.41
8.0.120.0040.00416.99
8.0.110.0040.00416.83
8.0.100.0040.00417.01
8.0.90.0040.00417.02
8.0.80.0110.00416.95
8.0.70.0040.00416.83
8.0.60.0000.00717.03
8.0.50.0000.00717.05
8.0.30.0070.01417.19
8.0.20.0140.00517.40
8.0.10.0040.00417.15
8.0.00.0100.01016.77
7.4.330.0040.00015.00
7.4.320.0060.00016.57
7.4.300.0060.00016.54
7.4.290.0000.00716.63
7.4.280.0030.00316.66
7.4.270.0000.00716.63
7.4.260.0070.00016.61
7.4.250.0000.00716.66
7.4.240.0020.00616.56
7.4.230.0000.00716.63
7.4.220.0140.00716.58
7.4.210.0070.00716.67
7.4.200.0040.00416.72
7.4.190.0050.00316.75
7.4.160.0060.00916.61
7.4.150.0070.01017.40
7.4.140.0110.00917.86
7.4.130.0120.00616.60
7.4.120.0130.00516.62
7.4.110.0140.00316.57
7.4.100.0030.01416.52
7.4.90.0160.00416.71
7.4.80.0050.01119.39
7.4.70.0110.00716.50
7.4.60.0060.01216.55
7.4.50.0030.00516.57
7.4.40.0030.01022.77
7.4.30.0090.00616.60
7.4.00.0030.00614.70
7.3.330.0050.00013.29
7.3.320.0000.00613.19
7.3.310.0030.00316.30
7.3.300.0000.00716.28
7.3.290.0000.01416.25
7.3.280.0080.00816.24
7.3.270.0060.01117.40
7.3.260.0110.00816.33
7.3.250.0120.00816.41
7.3.240.0110.00716.38
7.3.230.0070.01016.39
7.3.210.0030.01516.41
7.3.200.0090.00619.39
7.3.190.0070.01016.39
7.3.180.0090.00616.51
7.3.170.0070.01116.54
7.3.160.0090.00616.30
7.3.120.0040.01114.59
7.2.330.0060.01216.67
7.2.320.0150.00316.66
7.2.310.0110.01416.63
7.2.300.0100.00716.57
7.2.290.0080.00816.79
7.1.70.0040.00416.81
7.1.60.0040.00719.82
7.1.50.0110.00716.96
7.1.00.0070.06022.27
7.0.200.0030.00516.82
7.0.140.0000.07022.08
7.0.60.0030.06719.82
7.0.50.0130.07317.90
7.0.40.0170.08320.27
7.0.30.0170.05020.21
7.0.20.0200.06020.24
7.0.10.0130.08320.10
7.0.00.0030.04020.05
5.6.280.0030.07320.95
5.6.210.0230.07020.51
5.6.200.0070.07318.29
5.6.190.0070.08320.38
5.6.180.4170.04020.57
5.6.170.0230.03720.61
5.6.160.0070.03720.51
5.6.150.0130.07318.16
5.6.140.0000.04318.18
5.6.130.0100.06318.17
5.6.120.0100.04320.98
5.6.110.0100.09021.00
5.6.100.0270.07320.98
5.6.90.0000.09021.09
5.6.80.0130.07020.40
5.6.70.2770.03020.38
5.5.350.0070.07020.37
5.5.340.0030.09017.94
5.5.330.0070.04320.35
5.5.320.0270.04320.25
5.5.310.0230.08320.32
5.5.300.0030.05317.93
5.5.290.0000.05017.95
5.5.280.0070.08320.90
5.5.270.0070.06020.69
5.5.260.0070.06320.91
5.5.250.0200.06720.70
5.5.240.0070.02720.29
5.4.450.0700.07319.59
5.4.440.1070.07319.56
5.4.430.1100.06719.30
5.4.420.0870.05719.55
5.4.410.0970.06019.34
5.4.400.1030.06019.07
5.4.390.0070.06319.15
5.4.380.0300.04318.79
5.4.370.0200.04718.54
5.4.360.0270.03318.47
5.4.350.0040.04012.03
5.4.340.0220.08112.03
5.4.320.0060.03812.51
5.4.310.0030.04012.50
5.4.300.0080.03412.51
5.4.290.0050.04312.51
5.4.280.0050.04112.41
5.4.270.0040.04312.40
5.4.260.0030.03912.41
5.4.250.0100.05318.92
5.4.240.0170.05019.05
5.4.230.0130.05318.85
5.4.220.0130.05018.87
5.4.210.0130.04718.86
5.4.200.0070.07018.72
5.4.190.0130.07018.91
5.4.180.0200.04718.91
5.4.170.0030.06018.75
5.4.160.0130.05318.95
5.4.150.0170.07318.90
5.4.140.0100.05016.59
5.4.130.0030.06016.39
5.4.120.0100.05016.55
5.4.110.0100.06316.32
5.4.100.0030.05316.46
5.4.90.0100.04716.51
5.4.80.0100.04316.50
5.4.70.0100.04716.43
5.4.60.0130.04016.43
5.4.50.0070.05316.52
5.4.40.0100.04716.47
5.4.30.0070.05016.44
5.4.20.0130.04316.43
5.4.10.0130.04716.50
5.4.00.0030.05315.84
5.3.290.0050.04612.80
5.3.280.0070.06314.58
5.3.270.0030.06014.44
5.3.260.0070.06014.69
5.3.250.0200.06714.68
5.3.240.0100.05014.69
5.3.230.0100.04714.60
5.3.220.0070.04714.39
5.3.210.0100.06014.54
5.3.200.0070.05014.64
5.3.190.0100.04714.54
5.3.180.0130.06014.46
5.3.170.0130.04314.65
5.3.160.0100.04314.75
5.3.150.0070.05014.41
5.3.140.0030.07314.72
5.3.130.0130.06014.68
5.3.120.0030.07714.56
5.3.110.0070.05314.61
5.3.100.0100.04714.04
5.3.90.0030.05314.00
5.3.80.0030.05014.12
5.3.70.0100.05014.01
5.3.60.0000.05314.05
5.3.50.0130.04314.02
5.3.40.0070.04713.84
5.3.30.0100.04313.88
5.3.20.0000.05313.78
5.3.10.0070.05313.72
5.3.00.0170.06013.70
5.2.170.0130.05311.13
5.2.160.0070.04311.23
5.2.150.0000.04711.09
5.2.140.0170.04011.32
5.2.130.0130.03311.17
5.2.120.0030.04011.05
5.2.110.0100.04711.29
5.2.100.0030.06011.19
5.2.90.0130.03311.18
5.2.80.0030.04310.92
5.2.70.0100.05311.00
5.2.60.0100.04011.27
5.2.50.0070.05711.21
5.2.40.0070.06010.95
5.2.30.0100.04010.95
5.2.20.0070.03710.94
5.2.10.0030.04010.91
5.2.00.0130.03710.90
5.1.60.0100.04310.05
5.1.50.0030.03310.09
5.1.40.0030.0339.93
5.1.30.0100.04010.40
5.1.20.0030.03710.43
5.1.10.0030.03710.08
5.1.00.0070.0509.99
5.0.50.0070.0378.58
5.0.40.0070.0308.56
5.0.30.0000.0508.30
5.0.20.0030.0378.16
5.0.10.0130.0308.40
5.0.00.0030.0408.24
4.4.90.0100.0237.45
4.4.80.0070.0177.45
4.4.70.0030.0237.45
4.4.60.0000.0237.45
4.4.50.0070.0237.45
4.4.40.0070.0307.45
4.4.30.0030.0207.45
4.4.20.0070.0307.45
4.4.10.0070.0307.45
4.4.00.0070.0307.45
4.3.110.0030.0207.45
4.3.100.0030.0207.45
4.3.90.0030.0207.45
4.3.80.0000.0337.45
4.3.70.0030.0207.45
4.3.60.0030.0207.45
4.3.50.0000.0237.45
4.3.40.0000.0337.45
4.3.30.0030.0207.45
4.3.20.0070.0177.45
4.3.10.0030.0237.45
4.3.00.0100.0207.59

preferences:
66.03 ms | 401 KiB | 5 Q