3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 1; unset($a); var_dump(count($GLOBALS)); var_dump(array_filter($GLOBALS, function($v, $k) { return !in_array("GLOBALS", "_SERVER", "_GET", "_POST", "_COOKIE", "argv", "argc"); }));

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)
8.3.70.0150.00618.52
8.3.60.0110.00716.88
8.3.50.0170.00322.11
8.3.40.0170.00318.63
8.3.30.0150.00318.63
8.3.20.0030.00520.29
8.3.10.0070.00021.94
8.3.00.0040.00419.38
8.2.190.0100.00616.58
8.2.180.0090.00916.88
8.2.170.0120.00622.96
8.2.160.0070.00720.38
8.2.150.0060.00324.18
8.2.140.0000.00824.66
8.2.130.0070.00020.52
8.2.120.0070.00726.35
8.2.110.0030.00620.54
8.2.100.0080.00317.84
8.2.90.0040.00419.16
8.2.80.0000.00817.97
8.2.70.0000.00817.50
8.2.60.0030.00517.93
8.2.50.0000.00818.07
8.2.40.0040.00419.39
8.2.30.0050.00220.49
8.2.20.0030.00617.69
8.2.10.0050.00218.00
8.2.00.0080.00018.18
8.1.280.0100.01025.92
8.1.270.0040.00723.92
8.1.260.0040.00428.09
8.1.250.0000.00728.09
8.1.240.0030.00620.97
8.1.230.0070.00320.97
8.1.220.0040.00417.74
8.1.210.0060.00318.77
8.1.200.0030.00617.35
8.1.190.0000.00817.63
8.1.180.0030.00618.10
8.1.170.0040.00418.61
8.1.160.0040.00421.89
8.1.150.0040.00418.89
8.1.140.0050.00319.52
8.1.130.0060.00317.36
8.1.120.0070.00017.46
8.1.110.0000.00717.50
8.1.100.0000.00917.50
8.1.90.0070.00017.52
8.1.80.0000.00717.52
8.1.70.0040.00417.35
8.1.60.0020.00517.62
8.1.50.0030.00517.48
8.1.40.0030.00617.41
8.1.30.0090.00017.55
8.1.20.0070.00017.68
8.1.10.0030.00617.49
8.1.00.0000.00917.51
8.0.300.0090.00018.77
8.0.290.0070.00016.75
8.0.280.0030.00318.36
8.0.270.0050.00217.25
8.0.260.0000.00716.93
8.0.250.0080.00017.02
8.0.240.0030.00317.09
8.0.230.0000.00716.89
8.0.220.0050.00316.94
8.0.210.0070.00016.94
8.0.200.0040.00417.03
8.0.190.0040.00416.95
8.0.180.0070.00016.98
8.0.170.0040.00416.97
8.0.160.0040.00416.98
8.0.150.0040.00416.89
8.0.140.0070.00016.81
8.0.130.0040.00413.38
8.0.120.0060.00317.00
8.0.110.0080.00016.80
8.0.100.0040.00416.76
8.0.90.0000.00816.88
8.0.80.0030.01316.89
8.0.70.0080.00017.00
8.0.60.0000.00716.76
8.0.50.0000.00716.95
8.0.30.0120.00717.26
8.0.20.0160.00917.40
8.0.10.0040.00417.04
8.0.00.0120.00816.81
7.4.330.0000.00516.73
7.4.320.0000.00716.49
7.4.300.0030.00316.52
7.4.290.0000.00716.43
7.4.280.0090.00016.35
7.4.270.0000.00716.59
7.4.260.0030.00316.63
7.4.250.0000.00916.49
7.4.240.0020.00616.58
7.4.230.0000.00716.60
7.4.220.0030.00316.41
7.4.210.0080.00716.55
7.4.200.0000.00716.35
7.4.160.0040.01116.47
7.4.150.0030.01617.40
7.4.140.0080.00917.86
7.4.130.0090.00816.48
7.4.120.0090.01216.54
7.4.110.0100.00716.38
7.4.100.0060.01216.63
7.4.90.0090.00916.58
7.4.80.0120.00919.39
7.4.70.0120.00416.30
7.4.60.0090.00916.42
7.4.50.0050.01016.53
7.4.40.0130.00416.50
7.4.30.0040.01116.46
7.4.20.0100.00616.47
7.4.10.0130.00316.62
7.4.00.0070.00815.74
7.3.330.0080.00013.17
7.3.320.0030.00313.28
7.3.310.0000.00716.27
7.3.300.0070.00016.32
7.3.290.0000.00716.32
7.3.280.0130.00216.30
7.3.270.0120.00617.40
7.3.260.0100.01016.35
7.3.250.0130.00516.28
7.3.240.0130.00416.52
7.3.230.0100.01316.55
7.3.210.0110.00516.38
7.3.200.0030.01616.29
7.3.190.0130.00316.36
7.3.180.0110.00516.53
7.3.170.0090.00616.54
7.3.160.0040.01216.26
7.3.150.0110.00416.62
7.3.140.0180.00416.31
7.3.130.0100.00816.38
7.3.120.0070.01016.29
7.3.110.0130.00316.35
7.3.100.0100.00716.40
7.3.90.0130.00316.41
7.3.80.0110.00716.33
7.3.70.0060.01016.43
7.3.60.0120.00316.44
7.3.50.0110.00716.50
7.3.40.0130.00316.27
7.3.30.0110.00716.29
7.3.20.0090.00616.26
7.3.10.0060.00916.54
7.3.00.0080.00716.34
7.2.330.0030.02216.73
7.2.320.0070.01016.48
7.2.310.0070.01016.43
7.2.300.0080.00816.57
7.2.290.0160.00016.40
7.2.280.0030.01316.49
7.2.270.0040.01316.62
7.2.260.0070.01016.55
7.2.250.0070.01016.58
7.2.240.0110.00716.36
7.2.230.0100.00716.46
7.2.220.0110.00516.51
7.2.210.0110.00516.39
7.2.200.0160.00316.58
7.2.190.0100.00716.51
7.2.180.0070.01016.36
7.2.170.0080.00816.53
7.2.160.0000.01616.53
7.2.150.0130.00316.57
7.2.140.0070.01016.46
7.2.130.0100.00516.72
7.2.120.0070.00916.70
7.2.110.0130.00416.69
7.2.100.0100.00616.70
7.2.90.0080.00716.67
7.2.80.0050.01316.79
7.2.70.0120.00316.75
7.2.60.0220.00316.79
7.2.50.0090.01016.70
7.2.40.0070.00916.79
7.2.30.0080.00816.79
7.2.20.0110.00316.62
7.2.10.0060.00616.63
7.2.00.0050.00917.49
7.1.330.0050.01015.49
7.1.320.0080.00815.19
7.1.310.0030.01315.40
7.1.300.0080.00815.50
7.1.290.0070.01015.38
7.1.280.0130.00315.31
7.1.270.0070.01015.45
7.1.260.0160.01315.26
7.1.250.0080.00615.49
7.1.240.0090.00615.25
7.1.230.0080.00815.43
7.1.220.0060.00915.26
7.1.210.0130.00615.24
7.1.200.0060.00815.51
7.1.190.0110.00515.21
7.1.180.0100.01015.45
7.1.170.0210.00315.18
7.1.160.0080.00815.27
7.1.150.0030.01115.20
7.1.140.0060.00915.47
7.1.130.0040.01115.32
7.1.120.0090.00615.42
7.1.110.0080.00815.29
7.1.100.0100.00516.70
7.1.90.0110.00315.15
7.1.80.0140.00715.40
7.1.70.0040.01016.02
7.1.60.0030.01617.36
7.1.50.0070.01316.03
7.1.40.0040.01115.30
7.1.30.0060.00915.16
7.1.20.0040.01115.31
7.1.10.0050.01015.31
7.1.00.0080.04118.96
7.0.330.0060.01015.04
7.0.320.0060.01315.04
7.0.310.0030.01815.03
7.0.300.0120.00415.20
7.0.290.0060.01014.90
7.0.280.0030.01215.07
7.0.270.0080.00814.91
7.0.260.0070.01115.20
7.0.250.0120.00415.12
7.0.240.0090.00915.08
7.0.230.0030.01214.94
7.0.220.0040.01115.05
7.0.210.0080.00815.09
7.0.200.0050.00715.75
7.0.190.0160.00015.01
7.0.180.0110.00615.22
7.0.170.0040.01214.98
7.0.160.0080.01015.06
7.0.150.0080.00814.99
7.0.140.0080.00815.18
7.0.130.0110.00515.10
7.0.120.0060.01015.03
7.0.110.0090.00615.04
7.0.100.0130.00315.22
7.0.90.0090.01215.11
7.0.80.0070.01014.88
7.0.70.0100.00615.19
7.0.60.0050.02617.56
7.0.50.0060.03616.37
7.0.40.0060.03817.58
7.0.30.0240.04017.54
7.0.20.0210.04217.66
7.0.10.0050.02917.61
7.0.00.0130.04417.57
5.6.400.0110.00815.77
5.6.390.0110.00815.48
5.6.380.0100.01215.96
5.6.370.0080.01115.82
5.6.360.0050.01515.76
5.6.350.0100.01015.63
5.6.340.0110.00815.77
5.6.330.0090.00916.05
5.6.320.0090.00915.80
5.6.310.0180.00015.61
5.6.300.0030.01415.86
5.6.290.0070.01315.93
5.6.280.0100.03518.37
5.6.270.0120.00615.64
5.6.260.0060.01215.70
5.6.250.0150.00515.55
5.6.240.0080.01215.51
5.6.230.0040.01315.66
5.6.220.0000.01915.66
5.6.210.0090.04318.21
5.6.200.0070.04316.91
5.6.190.0110.04818.22
5.6.180.0310.04318.08
5.6.170.0170.02817.97
5.6.160.0050.03918.26
5.6.150.0070.04716.89
5.6.140.0020.04916.98
5.6.130.0080.02917.03
5.6.120.0090.04718.35
5.6.110.0080.04618.33
5.6.100.0120.03618.28
5.6.90.0070.02418.39
5.6.80.0080.04217.98
5.6.70.0100.01015.67
5.6.60.0120.00615.60
5.6.50.0110.00815.64
5.6.40.0060.01315.60
5.6.30.0000.02115.79
5.6.20.0090.00915.66
5.6.10.0090.00915.74
5.6.00.0110.00715.80
5.5.380.0100.01315.79
5.5.370.0060.01215.77
5.5.360.0090.00915.49
5.5.350.0130.03218.02
5.5.340.0030.05116.86
5.5.330.0130.04218.00
5.5.320.0160.04917.96
5.5.310.0250.03917.93
5.5.300.0070.04416.75
5.5.290.0050.02816.87
5.5.280.0080.02418.20
5.5.270.0080.04318.18
5.5.260.0100.04418.13
5.5.250.0110.03818.21
5.5.240.0100.04617.91
5.5.230.0100.01015.64
5.5.220.0000.01815.69
5.5.210.0000.02015.56
5.5.200.0120.00615.68
5.5.190.0070.01415.57
5.5.180.0070.01115.65
5.5.170.0070.01115.73
5.5.160.0040.01515.57
5.5.150.0100.01015.32
5.5.140.0030.01615.72
5.5.130.0080.01215.56
5.5.120.0110.00815.78
5.5.110.0090.01215.71
5.5.100.0150.00515.53
5.5.90.0000.02015.65
5.5.80.0040.01815.47
5.5.70.0090.00915.62
5.5.60.0060.01215.16
5.5.50.0090.01115.61
5.5.40.0110.00715.58
5.5.30.0080.01515.60
5.5.20.0030.01715.41
5.5.10.0090.01215.67
5.5.00.0100.01015.43

preferences:
61.11 ms | 401 KiB | 5 Q