3v4l.org

run code in 300+ PHP versions simultaneously
<?php session_start(); // if the user navigates directly to session.php and there is NOT an active session with stored session variables, redirect to input.php if ((!isset($_SESSION["username"]) && !isset($_SESSION["s1"]) && !isset($_SESSION["s2"]) && !isset($_SESSION["firstrun"])) ) { //&& empty($_REQUEST["username"] && empty($_REQUEST["s1"]) && empty($_REQUEST["username"])) { header("Location: input.php"); exit; } // if the user navigates directly to session.php and there IS an active session with stored variables, redirect to strings.php but // ONLY if input.php did NOT call session.php with POST data else if (isset($_SESSION["username"]) && isset($_SESSION["s1"]) && isset($_SESSION["s2"]) && ($_SESSION["username"] != "") && ($_SESSION["s1"] != "") && ($_SESSION["s2"] != "") && ($_SESSION["firstrun"] == "false") && empty($_POST)) { header("Location: strings.php"); exit; } else { if (!empty($_REQUEST)) { $username = htmlspecialchars($_REQUEST["username"]); $s1 = htmlspecialchars($_REQUEST["s1"]); $s2 = htmlspecialchars($_REQUEST["s2"]); if ($username != "" && $s1 != "" && $s2 != "") { $_SESSION["username"] = $username; // implicit call to session_start() if not already called $_SESSION["s1"] = $s1; // call session_name() first to start named session $_SESSION["s2"] = $s2; //echo "Vars are".$_SESSION["username"].$_SESSION["s1"].$_SESSION["s2"]; // if session creation and variable assigning was successful, set firstrun to false and empty the POST array // return true to calling JS function to enable redirect to strings.php if (isset($_SESSION["username"]) && isset($_SESSION["s1"]) && isset($_SESSION["s2"])) { $_SESSION["firstrun"] = "false"; $_POST = array(); echo "true"; } } } } ?>

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)
8.3.70.0110.01116.50
8.3.60.0070.01416.75
8.3.50.0090.00917.33
8.3.40.0070.01118.88
8.3.30.0130.00318.97
8.3.20.0040.00418.91
8.3.10.0080.00020.40
8.3.00.0030.00619.35
8.2.180.0080.00816.36
8.2.170.0040.01122.96
8.2.160.0070.00721.19
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0030.00519.36
8.2.110.0040.00721.02
8.2.100.0120.00018.03
8.2.90.0080.00319.34
8.2.80.0000.00817.91
8.2.70.0040.00417.75
8.2.60.0000.00818.16
8.2.50.0060.00318.07
8.2.40.0040.00418.28
8.2.30.0270.01318.17
8.2.20.0050.00217.75
8.2.10.0040.00417.80
8.2.00.0040.00417.78
8.1.280.0150.00025.92
8.1.270.0040.00424.66
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0070.00322.67
8.1.230.0090.00320.81
8.1.220.0040.00417.74
8.1.210.0030.00518.94
8.1.200.0030.00617.35
8.1.190.0050.00317.65
8.1.180.0040.00418.10
8.1.170.0030.00518.83
8.1.160.0090.00018.77
8.1.150.0000.00718.66
8.1.140.0080.00017.47
8.1.130.0030.00317.85
8.1.120.0050.00317.41
8.1.110.0040.00417.32
8.1.100.0000.00717.31
8.1.90.0000.00817.45
8.1.80.0070.00017.29
8.1.70.0000.00817.32
8.1.60.0060.00317.54
8.1.50.0020.00517.38
8.1.40.0040.00417.47
8.1.30.0040.00417.53
8.1.20.0040.00517.59
8.1.10.0040.00417.56
8.1.00.0030.00617.49
8.0.300.0000.00919.84
8.0.290.0000.00816.75
8.0.280.0030.00318.54
8.0.270.0040.00417.12
8.0.260.0000.00816.90
8.0.250.0040.00416.87
8.0.240.0040.00417.00
8.0.230.0030.00316.88
8.0.220.0050.00316.93
8.0.210.0030.00316.84
8.0.200.0040.00417.03
8.0.190.0090.00316.98
8.0.180.0030.00516.93
8.0.170.0060.00316.95
8.0.160.0040.00417.00
8.0.150.0040.00416.89
8.0.140.0000.00716.85
8.0.130.0000.00513.27
8.0.120.0040.00416.93
8.0.110.0040.00416.87
8.0.100.0040.00416.87
8.0.90.0040.00416.75
8.0.80.0110.01116.80
8.0.70.0040.00416.99
8.0.60.0050.00216.90
8.0.50.0050.00316.99
8.0.30.0100.00817.14
8.0.20.0170.00817.08
8.0.10.0000.00817.10
8.0.00.0070.01116.79
7.4.330.0050.00012.96
7.4.320.0030.00316.49
7.4.300.0000.00816.44
7.4.290.0070.00016.59
7.4.280.0080.00016.43
7.4.270.0000.00716.46
7.4.260.0000.00613.27
7.4.250.0000.00816.43
7.4.240.0000.00716.50
7.4.230.0040.00416.62
7.4.220.0100.01716.53
7.4.210.0060.01016.49
7.4.200.0070.00016.57
7.4.190.0050.00216.44
7.4.160.0090.00916.66
7.4.150.0030.01416.49
7.4.140.0110.00816.50
7.4.130.0130.00516.51
7.4.120.0070.01016.54
7.4.110.0110.01116.59
7.4.100.0060.01016.34
7.4.90.0090.00916.70
7.4.80.0110.00516.54
7.4.70.0060.01016.32
7.4.60.0140.00616.37
7.4.50.0000.00816.36
7.4.40.0040.00816.72
7.4.30.0100.00616.59
7.4.00.0090.00614.97
7.3.330.0030.00313.00
7.3.320.0030.00313.02
7.3.310.0030.00316.38
7.3.300.0070.00016.29
7.3.290.0170.00316.36
7.3.280.0060.01116.29
7.3.270.0120.00616.46
7.3.260.0130.00516.41
7.3.250.0070.01016.38
7.3.240.0090.00616.45
7.3.230.0130.00316.28
7.3.210.0070.01016.50
7.3.200.0030.01719.39
7.3.190.0030.01316.32
7.3.180.0130.00916.26
7.3.170.0130.00916.27
7.3.160.0090.00616.28
7.3.120.0030.01014.78
7.2.330.0130.00316.82
7.2.320.0130.01016.49
7.2.310.0060.01916.66
7.2.300.0100.00616.71
7.2.290.0100.01016.52
7.2.00.0030.00719.49
7.1.100.0030.00917.82
7.1.70.0060.00616.90
7.1.60.0090.00919.40
7.1.50.0070.01316.74
7.1.00.0030.07322.50
7.0.200.0030.01014.61
7.0.140.0070.06721.97
7.0.120.0000.08021.92
7.0.60.0030.08320.02
7.0.50.0130.05017.80
7.0.40.0030.09320.08
7.0.30.0330.07320.04
7.0.20.0200.04020.15
7.0.10.0000.04720.20
7.0.00.0130.08320.13
5.6.280.0070.08720.91
5.6.210.0070.06020.63
5.6.200.0070.04018.08
5.6.190.0070.08320.35
5.6.180.0430.05720.41
5.6.170.0130.04720.50
5.6.160.0070.07720.34
5.6.150.0070.08318.17
5.6.140.0070.04018.21
5.6.130.0030.04018.07
5.6.120.0130.07721.12
5.6.110.0130.07721.12
5.6.100.0170.06721.03
5.6.90.0170.03320.88
5.6.80.0130.08020.36
5.5.350.0200.07720.42
5.5.340.0070.04017.95
5.5.330.0200.07020.43
5.5.320.0200.05320.18
5.5.310.0270.07320.16
5.5.300.0170.06718.00
5.5.290.0030.04017.92
5.5.280.0170.05320.97
5.5.270.0070.08320.64
5.5.260.0070.08320.79
5.5.250.0030.05720.69
5.5.240.0000.08720.24
5.4.450.0070.06319.47
5.4.440.0030.08319.46
5.4.430.0100.07719.50
5.4.420.0100.04719.50
5.4.410.0030.07719.28
5.4.400.0030.04718.79
5.4.390.0170.06319.16
5.4.380.0000.04018.80
5.4.370.0100.07018.97
5.4.360.0000.05019.08
5.4.350.0100.06019.19
5.4.340.0030.06018.92
5.4.320.0070.04318.80
5.4.310.0000.04019.16
5.4.300.0070.04318.78
5.4.290.0100.07018.79
5.4.280.0200.06719.17
5.4.270.0030.08019.00
5.4.260.0170.05718.79
5.4.250.0100.03719.17
5.4.240.0070.04718.78
5.4.230.0200.06719.13
5.4.220.0070.08019.14
5.4.210.0070.07318.91
5.4.200.0070.08019.07
5.4.190.0100.07318.99
5.4.180.0130.07318.90
5.4.170.0030.05718.86
5.4.160.0130.06719.15
5.4.150.0130.03318.76
5.4.140.0130.06316.25
5.4.130.0030.07316.32
5.4.120.0070.06316.21
5.4.110.0000.04316.36
5.4.100.0270.02716.36
5.4.90.0000.08016.43
5.4.80.0030.08016.39
5.4.70.0100.03716.28
5.4.60.0000.08016.25
5.4.50.0100.04316.21
5.4.40.0100.06316.48
5.4.30.0030.06716.29
5.4.20.0100.07016.13
5.4.10.0030.07716.21
5.4.00.0100.05315.73
5.3.290.0130.03014.52
5.3.280.0070.07714.55
5.3.270.0100.04314.55
5.3.260.0000.05014.56
5.3.250.0030.08014.56
5.3.240.0070.04714.50
5.3.230.0000.05014.54
5.3.220.0070.05314.59
5.3.210.0100.04314.51
5.3.200.0070.03314.55
5.3.190.0170.07314.54
5.3.180.0070.07714.50
5.3.170.0000.07714.51
5.3.160.0070.07714.66
5.3.150.0030.07014.51
5.3.140.0100.06314.59
5.3.130.0030.07314.44
5.3.120.0100.07314.48
5.3.110.0030.04014.38
5.3.100.0100.06313.87
5.3.90.0100.07313.96
5.3.80.0070.07313.86
5.3.70.0070.08013.87
5.3.60.0070.07313.96
5.3.50.0100.06013.89
5.3.40.0000.08313.89
5.3.30.0230.05313.86
5.3.20.0030.07013.59
5.3.10.0030.07313.49
5.3.00.0100.05313.62
5.2.170.0100.06011.11
5.2.160.0030.06310.98
5.2.150.0100.06011.11
5.2.140.0030.04011.32
5.2.130.0030.03711.09
5.2.120.0030.03711.07
5.2.110.0070.06311.20
5.2.100.0070.06310.94
5.2.90.0170.04311.09
5.2.80.0000.04311.27
5.2.70.0030.06711.12
5.2.60.0130.05310.98
5.2.50.0070.06011.00
5.2.40.0100.05311.00
5.2.30.0070.06310.93
5.2.20.0100.05710.96
5.2.10.0070.05310.83
5.2.00.0030.04010.73
5.1.60.0070.03710.03
5.1.50.0000.06010.00
5.1.40.0070.0509.99
5.1.30.0070.03310.35
5.1.20.0030.02710.35
5.1.10.0070.05310.23
5.1.00.0100.04310.10
5.0.50.0070.0238.53
5.0.40.0000.0238.46
5.0.30.0000.0478.38
5.0.20.0070.0478.38
5.0.10.0070.0378.38
5.0.00.0100.0638.38
4.4.90.0070.0238.38
4.4.80.0070.0208.38
4.4.70.0000.0408.38
4.4.60.0030.0378.38
4.4.50.0000.0378.38
4.4.40.0000.0438.38
4.4.30.0030.0338.38
4.4.20.0030.0138.38
4.4.10.0000.0278.38
4.4.00.0000.0578.38
4.3.110.0000.0408.38
4.3.100.0070.0308.38
4.3.90.0030.0278.38
4.3.80.0000.0378.38
4.3.70.0000.0378.38
4.3.60.0000.0378.38
4.3.50.0000.0338.38
4.3.40.0070.0408.38
4.3.30.0000.0408.38
4.3.20.0000.0408.38
4.3.10.0070.0278.38
4.3.00.0000.0378.38

preferences:
64.16 ms | 401 KiB | 5 Q