3v4l.org

run code in 500+ PHP versions simultaneously
<?php declare(strict_types=1); namespace Forum { class Message {} } namespace Messenger { class Message {} } $forumMessage = new \Forum\Message; $messengerMessage = new \Messenger\Message; var_dump($forumMessage::class); var_dump($messengerMessage::class);

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)
8.5.30.0330.00916.56
8.5.20.0300.01116.49
8.5.10.0270.00616.56
8.5.00.0240.00816.57
8.4.180.0290.00719.58
8.4.170.0320.00919.50
8.4.160.0300.01119.53
8.4.150.0320.00919.55
8.4.140.0340.00917.50
8.4.130.0410.00517.47
8.4.120.0350.01017.84
8.4.110.0310.01017.74
8.4.100.0360.00817.89
8.4.90.0320.00717.79
8.4.80.0260.01117.77
8.4.70.0270.00717.68
8.4.60.0260.01017.84
8.4.50.0350.01217.62
8.4.40.0360.01117.48
8.4.30.0360.00817.48
8.4.20.0260.00917.60
8.4.10.0350.00917.43
8.3.300.0240.00618.13
8.3.290.0330.00818.14
8.3.280.0290.01018.11
8.3.270.0260.00616.68
8.3.260.0300.00916.64
8.3.250.0300.00516.58
8.3.240.0220.00816.46
8.3.230.0320.00716.49
8.3.220.0350.00416.54
8.3.210.0240.00816.71
8.3.200.0270.00616.64
8.3.190.0300.00516.54
8.3.180.0350.00516.66
8.3.170.0360.00816.56
8.3.160.0390.00816.55
8.3.150.0360.00516.46
8.3.140.0340.01016.41
8.3.130.0280.01016.44
8.3.120.0290.00716.62
8.3.110.0300.00716.47
8.3.100.0260.00824.92
8.3.90.0340.00916.58
8.3.80.0350.00716.48
8.3.70.0320.00816.63
8.3.60.0290.00616.81
8.3.50.0290.00616.72
8.3.40.0290.00717.71
8.3.30.0240.00617.47
8.3.20.0230.00717.31
8.3.10.0230.00917.42
8.3.00.0160.00717.93
8.2.300.0410.00917.80
8.2.290.0260.00816.59
8.2.280.0310.00716.53
8.2.270.0280.00516.55
8.2.260.0280.00716.34
8.2.250.0290.00716.35
8.2.240.0270.00516.36
8.2.230.0290.00616.36
8.2.220.0300.00616.42
8.2.210.0290.00816.33
8.2.200.0280.00716.38
8.2.190.0280.00716.38
8.2.180.0280.00616.49
8.2.170.0320.00717.54
8.2.160.0300.00617.81
8.2.150.0300.00617.47
8.2.140.0260.00817.57
8.2.130.0330.00617.35
8.2.120.0290.00717.49
8.2.110.0250.00818.33
8.2.100.0270.00617.75
8.2.90.0290.00817.56
8.2.80.0290.00717.37
8.2.70.0200.00739.89
8.2.60.0210.00717.33
8.2.50.0200.00617.73
8.2.40.0240.00717.46
8.2.30.0210.00717.37
8.2.20.0230.00517.49
8.2.10.0190.00717.78
8.2.00.0180.00617.90
8.1.340.0340.00817.36
8.1.330.0310.00715.99
8.1.320.0260.00916.12
8.1.310.0270.00716.01
8.1.300.0230.01115.96
8.1.290.0270.00816.01
8.1.280.0260.00716.15
8.1.270.0280.00617.41
8.1.260.0250.00817.21
8.1.250.0270.00917.17
8.1.240.0290.00417.17
8.1.230.0260.00817.13
8.1.220.0290.00517.17
8.1.210.0250.00817.16
8.1.200.0240.00717.14
8.1.190.0230.00817.05
8.1.180.0230.00717.13
8.1.170.0220.00717.18
8.1.160.0270.00517.19
8.1.150.0200.00817.24
8.1.140.0210.00717.40
8.1.130.0200.00717.23
8.1.120.0180.00817.39
8.1.110.0190.00917.36
8.1.100.0200.00817.41
8.1.90.0150.00817.36
8.1.80.0200.00617.34
8.1.70.0190.00417.34
8.1.60.0190.00717.69
8.1.50.0200.00717.39
8.1.40.0210.00417.46
8.1.30.0170.00617.52
8.1.20.0150.00617.48
8.1.10.0200.00717.38
8.1.00.0220.00617.32
8.0.300.0290.00616.45
8.0.290.0280.00616.51
8.0.280.0250.00816.60
8.0.270.0230.00816.61
8.0.260.0240.00716.84
8.0.250.0210.00517.05
8.0.240.0190.00716.87
8.0.230.0200.00716.85
8.0.220.0210.00716.78
8.0.210.0190.00716.80
8.0.200.0180.00716.79
8.0.190.0200.00816.83
8.0.180.0190.00816.81
8.0.170.0210.00717.00
8.0.160.0210.00716.91
8.0.150.0210.00616.80
8.0.140.0190.00616.79
8.0.130.0170.00616.79
8.0.120.0200.00616.75
8.0.110.0190.00716.73
8.0.100.0230.00416.76
8.0.90.0150.00616.70
8.0.80.0170.00716.75
8.0.70.0170.00716.86
8.0.60.0180.00616.72
8.0.50.0170.00716.71
8.0.30.0190.00716.86
8.0.20.0190.00616.84
8.0.10.0180.00616.86
8.0.00.0150.00716.92
7.4.330.0220.00616.20
7.4.320.0230.00616.47
7.4.300.0180.00616.61
7.4.290.0200.00616.49
7.4.280.0190.00716.50
7.4.270.0210.00616.64
7.4.260.0170.00516.47
7.4.250.0200.00616.45
7.4.240.0220.00416.56
7.4.230.0210.00616.39
7.4.220.0190.00516.43
7.4.210.0160.00616.58
7.4.200.0180.00416.40
7.4.190.0160.00616.54
7.4.180.0170.00716.50
7.4.160.0180.00616.44
7.4.150.0180.00616.40
7.4.140.0190.00516.31
7.4.130.0180.00616.34
7.4.120.0170.00716.27
7.4.110.0170.00616.34
7.4.100.0170.00616.39
7.4.90.0170.00716.25
7.4.80.0170.00616.33
7.4.70.0180.00616.29
7.4.60.0160.00616.33
7.4.50.0180.00516.38
7.4.40.0180.00616.28
7.4.30.0160.00716.35
7.4.20.0160.00616.26
7.4.10.0180.00416.26
7.4.00.0170.00616.35
7.3.330.0200.00516.32
7.3.320.0200.00516.27
7.3.310.0190.00516.28
7.3.300.0190.00516.29
7.3.290.0170.00616.28
7.3.280.0170.00616.33
7.3.270.0180.00616.30
7.3.260.0190.00416.27
7.3.250.0170.00716.32
7.3.240.0190.00516.29
7.3.230.0170.00516.30
7.3.220.0220.00316.25
7.3.210.0160.00616.40
7.3.200.0170.00416.38
7.3.190.0170.00616.37
7.3.180.0170.00516.34
7.3.170.0200.00516.24
7.3.160.0180.00616.27
7.3.150.0190.00516.18
7.3.140.0160.00716.27
7.3.130.0180.00616.21
7.3.120.0190.00516.21
7.3.110.0160.00616.21
7.3.100.0170.00616.33
7.3.90.0170.00616.44
7.3.80.0160.00516.26
7.3.70.0180.00416.42
7.3.60.0160.00516.34
7.3.50.0150.00616.31
7.3.40.0170.00516.45
7.3.30.0160.00616.30
7.3.20.0180.00617.54
7.3.10.0200.00417.56
7.3.00.0180.00517.56

preferences:
154.54 ms | 2011 KiB | 7 Q