3v4l.org

run code in 300+ PHP versions simultaneously
<?php class X { public function __construct($a = 0) { $a = 33; $this->a(); } protected function a () { echo $a.'x'; var_dump(get_defined_vars()); } }

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)
8.3.60.0100.00618.30
8.3.50.0040.01116.36
8.3.40.0030.01018.71
8.3.30.0150.00018.45
8.3.20.0110.00020.24
8.3.10.0080.00021.78
8.3.00.0040.00420.96
8.2.180.0150.00018.29
8.2.170.0040.01122.96
8.2.160.0100.00322.08
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0040.00422.13
8.2.120.0080.00026.35
8.2.110.0030.00720.57
8.2.100.0100.00017.59
8.2.90.0040.00419.15
8.2.80.0060.00317.97
8.2.70.0060.00317.50
8.2.60.0000.00817.92
8.2.50.0040.00418.10
8.2.40.0040.00422.37
8.2.30.0000.00820.93
8.2.20.0070.00017.91
8.2.10.0050.00217.96
8.2.00.0040.00418.00
8.1.280.0090.00625.92
8.1.270.0040.00423.84
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0090.00022.56
8.1.230.0110.00019.16
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0030.00617.23
8.1.190.0030.00616.85
8.1.180.0000.00718.10
8.1.170.0060.00318.52
8.1.160.0070.00018.94
8.1.150.0000.00718.85
8.1.140.0000.00819.48
8.1.130.0000.00718.77
8.1.120.0000.00817.38
8.1.110.0040.00417.27
8.1.100.0000.00717.34
8.1.90.0080.00017.32
8.1.80.0000.00717.21
8.1.70.0030.00517.32
8.1.60.0030.00617.48
8.1.50.0080.00017.42
8.1.40.0040.00417.27
8.1.30.0000.00917.36
8.1.20.0040.00417.45
8.1.10.0020.00517.32
8.1.00.0060.00317.19
8.0.300.0050.00218.77
8.0.290.0070.00016.63
8.0.280.0000.00718.38
8.0.270.0030.00317.11
8.0.260.0030.00318.27
8.0.250.0000.00716.71
8.0.240.0040.00416.54
8.0.230.0040.00416.68
8.0.220.0030.00316.64
8.0.210.0040.00416.63
8.0.200.0030.00316.80
8.0.190.0030.00516.82
8.0.180.0000.00816.66
8.0.170.0030.00316.81
8.0.160.0070.00016.64
8.0.150.0050.00216.71
8.0.140.0050.00216.61
8.0.130.0000.00713.19
8.0.120.0000.00816.61
8.0.110.0040.00416.80
8.0.100.0040.00416.71
8.0.90.0040.00416.55
8.0.80.0000.01816.82
8.0.70.0000.00816.75
8.0.60.0000.00716.86
8.0.50.0090.00016.70
8.0.30.0110.00517.00
8.0.20.0110.01017.40
8.0.10.0030.00616.70
8.0.00.0060.01216.45
7.4.330.0020.00215.55
7.4.320.0040.00416.36
7.4.300.0000.00616.46
7.4.290.0040.00416.37
7.4.280.0070.00016.36
7.4.270.0040.00416.39
7.4.260.0030.00316.50
7.4.250.0030.00316.40
7.4.240.0000.00716.29
7.4.230.0000.00716.55
7.4.220.0060.01216.43
7.4.210.0080.00816.36
7.4.200.0070.00016.35
7.4.160.0060.01016.42
7.4.150.0090.00917.40
7.4.140.0100.00717.86
7.4.130.0100.01116.35
7.4.120.0130.00916.38
7.4.110.0060.01016.27
7.4.100.0120.00916.26
7.4.90.0100.00616.34
7.4.80.0080.00819.39
7.4.70.0030.01416.25
7.4.60.0070.01016.30
7.4.50.0000.01116.33
7.4.40.0100.00616.51
7.4.30.0070.00816.44
7.4.00.0060.00614.98
7.3.330.0000.00513.23
7.3.320.0050.00012.95
7.3.310.0070.00016.17
7.3.300.0000.00716.00
7.3.290.0090.00816.20
7.3.280.0090.00816.17
7.3.270.0030.01417.40
7.3.260.0060.01416.41
7.3.250.0100.00916.17
7.3.240.0090.00916.28
7.3.230.0110.00516.25
7.3.210.0060.01016.16
7.3.200.0130.00316.21
7.3.190.0030.01316.44
7.3.180.0060.00916.33
7.3.170.0100.00716.48
7.3.160.0090.01216.24
7.3.10.0060.00916.55
7.3.00.0110.00416.29
7.2.330.0070.01016.28
7.2.320.0100.00716.25
7.2.310.0090.00916.49
7.2.300.0100.01016.52
7.2.290.0090.00916.39
7.2.130.0030.01016.55
7.2.120.0100.00416.82
7.2.110.0070.00716.74
7.2.100.0110.00516.67
7.2.90.0010.01116.73
7.2.80.0080.00816.60
7.2.70.0090.00516.50
7.2.60.0050.00816.76
7.2.50.0060.00816.70
7.2.40.0080.00716.54
7.2.30.0040.01116.67
7.2.20.0070.00516.82
7.2.10.0080.00716.86
7.2.00.0070.00817.54
7.1.250.0060.00715.67
7.1.240.0040.00415.61
7.1.230.0040.01115.61
7.1.220.0130.00315.50
7.1.210.0060.00615.50
7.1.200.0030.00615.54
7.1.190.0030.00715.70
7.1.180.0120.00315.48
7.1.170.0040.01215.55
7.1.160.0060.00915.47
7.1.150.0070.00315.63
7.1.140.0030.01015.54
7.1.130.0090.00315.48
7.1.120.0060.00915.68
7.1.110.0070.00715.55
7.1.100.0090.00616.79
7.1.90.0040.00815.61
7.1.80.0000.00915.37
7.1.70.0070.01216.11
7.1.60.0400.01024.47
7.1.50.0410.00524.12
7.1.40.0370.01124.05
7.1.30.0330.01024.17
7.1.20.0280.01224.20
7.1.10.0350.00214.85
7.1.00.0370.01114.97
7.0.330.0080.00415.11
7.0.320.0070.00715.16
7.0.310.0060.00615.25
7.0.300.0080.00315.31
7.0.290.0040.01115.36
7.0.280.0030.00615.23
7.0.270.0110.00015.22
7.0.260.0120.00315.44
7.0.250.0070.00315.13
7.0.240.0040.00415.16
7.0.230.0070.00715.30
7.0.220.0070.00715.20
7.0.210.0070.00714.92
7.0.200.0350.01014.99
7.0.190.0530.01215.01
7.0.180.0330.00614.74
7.0.170.0260.01114.74
7.0.160.0270.00714.81
7.0.150.0230.01214.52
7.0.140.0330.00714.78
7.0.130.0280.00814.84
7.0.120.0280.00714.93
7.0.110.0330.01214.68
7.0.100.0330.00814.86
7.0.90.0320.00714.60
7.0.80.0280.00814.94
7.0.70.0300.00914.67
7.0.60.0320.00514.60
7.0.50.0370.00514.90
7.0.40.0050.01013.80
7.0.30.0050.00713.81
7.0.20.0110.00313.92
7.0.10.0050.00813.97
7.0.00.0410.00613.78
5.6.380.0070.00714.43

preferences:
34.94 ms | 400 KiB | 5 Q