3v4l.org

run code in 300+ PHP versions simultaneously
<?php function test() { return null; } function call() { $blockedRel = test(); var_dump($blockedRel); var_dump(isset($blockedRel)); var_dump(isset($b)); } call();

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)
8.3.60.0120.00918.18
8.3.50.0140.00416.34
8.3.40.0070.00718.51
8.3.30.0110.00318.42
8.3.20.0040.00419.03
8.3.10.0040.00421.60
8.3.00.0030.00619.35
8.2.180.0110.00316.38
8.2.170.0070.00722.96
8.2.160.0100.00320.39
8.2.150.0070.00024.18
8.2.140.0000.00824.66
8.2.130.0070.00026.16
8.2.120.0070.00020.99
8.2.110.0040.00421.04
8.2.100.0070.00719.63
8.2.90.0050.00319.22
8.2.80.0030.00617.97
8.2.70.0080.00017.38
8.2.60.0040.00417.91
8.2.50.0080.00018.07
8.2.40.0040.00419.88
8.2.30.0070.00018.10
8.2.20.0040.00418.06
8.2.10.0000.00817.95
8.2.00.0070.00017.98
8.1.280.0140.00025.92
8.1.270.0070.00024.00
8.1.260.0040.00426.35
8.1.250.0060.00328.09
8.1.240.0100.00020.86
8.1.230.0040.00722.20
8.1.220.0060.00317.74
8.1.210.0000.00918.77
8.1.200.0050.00517.23
8.1.190.0040.00417.11
8.1.180.0080.00018.10
8.1.170.0060.00318.65
8.1.160.0050.00318.81
8.1.150.0000.00818.81
8.1.140.0050.00319.54
8.1.130.0000.00718.84
8.1.120.0040.00417.43
8.1.110.0000.00817.38
8.1.100.0000.00717.30
8.1.90.0000.00717.29
8.1.80.0080.00017.39
8.1.70.0000.00817.36
8.1.60.0040.00417.64
8.1.50.0030.00617.39
8.1.40.0000.00917.51
8.1.30.0040.00417.50
8.1.20.0000.00817.55
8.1.10.0070.00017.45
8.1.00.0070.00017.23
8.0.300.0030.00618.77
8.0.290.0050.00316.63
8.0.280.0030.00318.37
8.0.270.0030.00317.20
8.0.260.0060.00316.75
8.0.250.0000.00716.78
8.0.240.0040.00416.90
8.0.230.0030.00316.90
8.0.220.0000.00616.83
8.0.210.0050.00216.70
8.0.200.0060.00316.87
8.0.190.0000.00816.75
8.0.180.0050.00216.84
8.0.170.0030.00316.84
8.0.160.0030.00316.82
8.0.150.0000.00716.79
8.0.140.0040.00416.84
8.0.130.0070.00013.25
8.0.120.0040.00416.79
8.0.110.0000.00716.71
8.0.100.0040.00416.84
8.0.90.0000.00716.70
8.0.80.0030.01716.79
8.0.70.0070.00016.64
8.0.60.0080.00016.84
8.0.50.0040.00416.70
8.0.30.0080.01116.99
8.0.20.0120.00717.40
8.0.10.0040.00416.97
8.0.00.0070.01116.70
7.4.330.0020.00215.55
7.4.320.0000.00616.53
7.4.300.0000.00616.63
7.4.290.0060.00316.56
7.4.280.0050.00316.53
7.4.270.0000.00716.59
7.4.260.0040.00416.59
7.4.250.0030.00316.44
7.4.240.0050.00316.55
7.4.230.0000.00716.57
7.4.220.0140.00416.56
7.4.210.0090.00916.56
7.4.200.0040.00416.43
7.4.160.0040.01216.45
7.4.150.0140.00317.40
7.4.140.0110.00817.86
7.4.130.0040.01616.46
7.4.120.0100.01016.38
7.4.110.0050.01416.46
7.4.100.0060.01316.50
7.4.90.0070.01016.54
7.4.80.0180.00019.39
7.4.70.0060.01016.46
7.4.60.0080.00816.57
7.4.50.0070.01016.50
7.4.40.0100.01616.56
7.4.30.0000.01616.54
7.4.00.0100.00715.02
7.3.330.0000.00613.16
7.3.320.0030.00213.30
7.3.310.0000.00716.28
7.3.300.0060.00016.16
7.3.290.0030.00316.24
7.3.280.0090.00716.22
7.3.270.0090.00917.40
7.3.260.0080.00816.30
7.3.250.0090.01216.43
7.3.240.0120.00516.46
7.3.230.0090.00916.44
7.3.210.0120.00416.49
7.3.200.0100.01316.31
7.3.190.0060.01016.15
7.3.180.0120.00416.20
7.3.170.0100.00716.34
7.3.160.0100.01016.20
7.3.00.0000.01116.54
7.2.330.0030.01316.78
7.2.320.0070.01716.36
7.2.310.0130.00616.36
7.2.300.0000.02316.63
7.2.290.0070.01416.27
7.2.130.0030.00716.82
7.2.120.0080.00417.00
7.2.110.0060.00316.60
7.2.100.0090.00016.71
7.2.90.0100.00416.83
7.2.80.0000.01516.60
7.2.70.0030.00916.80
7.2.60.0060.00616.79
7.2.50.0000.00816.95
7.2.40.0100.00716.77
7.2.30.0000.01016.79
7.2.20.0050.00616.89
7.2.10.0120.00317.01
7.2.00.0070.00718.11
7.1.250.0040.00815.62
7.1.240.0070.00715.90
7.1.230.0070.00715.66
7.1.220.0000.00815.82
7.1.210.0040.01115.70
7.1.200.0070.00415.50
7.1.190.0070.00315.86
7.1.180.0060.00915.55
7.1.170.0040.01115.87
7.1.160.0070.00715.57
7.1.150.0090.00615.80
7.1.140.0040.00415.82
7.1.130.0100.00015.77
7.1.120.0070.00715.50
7.1.110.0030.00915.67
7.1.100.0020.01016.73
7.1.90.0070.00715.94
7.1.80.0040.00715.79
7.1.70.0050.00816.34
7.1.60.0950.01024.48
7.1.50.1000.01024.19
7.1.40.0870.00924.18
7.1.30.1160.01024.23
7.1.20.0710.01124.37
7.1.10.0590.00515.18
7.1.00.0780.01115.28
7.0.330.0030.00515.54
7.0.320.0080.00015.30
7.0.310.0040.00814.94
7.0.300.0000.01115.27
7.0.290.0100.00315.39
7.0.280.0030.01015.30
7.0.270.0070.00715.20
7.0.260.0060.00315.38
7.0.250.0040.00715.31
7.0.240.0100.00715.13
7.0.230.0090.00315.04
7.0.220.0030.00915.12
7.0.210.0000.01415.35
7.0.200.1020.00515.00
7.0.190.1150.00715.02
7.0.180.0850.01314.89
7.0.170.1050.01114.95
7.0.160.0770.01014.81
7.0.150.0720.00614.87
7.0.140.0660.00514.92
7.0.130.0760.00814.81
7.0.120.0700.01015.09
7.0.110.0670.00815.01
7.0.100.0570.01014.89
7.0.90.0520.01014.69
7.0.80.0770.00714.82
7.0.70.0780.01214.82
7.0.60.1030.00814.80
7.0.50.0690.01214.88
7.0.40.0730.01214.01
7.0.30.0710.00414.02
7.0.20.0750.01013.99
7.0.10.0670.01314.00
7.0.00.0770.01114.05
5.6.380.0030.01014.42

preferences:
46.51 ms | 400 KiB | 5 Q