3v4l.org

run code in 300+ PHP versions simultaneously
<?php class X { public function __construct($a = 0) { $a = 33; $this->a(); } protected function a () { global $a; echo $a; 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)
8.3.60.0120.00918.43
8.3.50.0070.00716.37
8.3.40.0060.00918.50
8.3.30.0070.00718.30
8.3.20.0050.00520.02
8.3.10.0050.00321.60
8.3.00.0080.00020.88
8.2.180.0120.00917.89
8.2.170.0100.00622.96
8.2.160.0030.01022.29
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0070.00022.30
8.2.120.0000.00726.35
8.2.110.0030.00621.00
8.2.100.0040.00817.72
8.2.90.0040.00418.22
8.2.80.0040.00417.97
8.2.70.0050.00317.50
8.2.60.0040.00417.91
8.2.50.0060.00318.10
8.2.40.0000.00822.32
8.2.30.0000.00720.91
8.2.20.0070.00017.83
8.2.10.0000.00717.83
8.2.00.0050.00317.98
8.1.280.0040.01125.92
8.1.270.0040.00423.88
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0030.00623.92
8.1.230.0050.00520.96
8.1.220.0060.00317.74
8.1.210.0000.00818.77
8.1.200.0060.00316.85
8.1.190.0050.00316.98
8.1.180.0040.00418.10
8.1.170.0040.00418.56
8.1.160.0040.00418.93
8.1.150.0050.00218.71
8.1.140.0030.00519.44
8.1.130.0000.00718.79
8.1.120.0050.00317.23
8.1.110.0000.00817.28
8.1.100.0040.00417.21
8.1.90.0000.00817.34
8.1.80.0040.00417.30
8.1.70.0030.00317.36
8.1.60.0000.01017.49
8.1.50.0040.00417.30
8.1.40.0040.00417.29
8.1.30.0040.00417.38
8.1.20.0080.00017.41
8.1.10.0000.00717.32
8.1.00.0000.00817.34
8.0.300.0070.00020.21
8.0.290.0040.00416.63
8.0.280.0030.00318.21
8.0.270.0000.00717.02
8.0.260.0030.00316.55
8.0.250.0030.00416.71
8.0.240.0000.00716.60
8.0.230.0040.00416.75
8.0.220.0030.00316.66
8.0.210.0030.00316.70
8.0.200.0050.00216.79
8.0.190.0000.00816.77
8.0.180.0030.00316.68
8.0.170.0070.00016.64
8.0.160.0070.00016.76
8.0.150.0030.00316.79
8.0.140.0040.00416.73
8.0.130.0030.00313.20
8.0.120.0030.00316.63
8.0.110.0040.00416.66
8.0.100.0040.00416.71
8.0.90.0000.00716.79
8.0.80.0040.01216.81
8.0.70.0000.00716.75
8.0.60.0080.00016.75
8.0.50.0000.00816.55
8.0.30.0070.01116.98
8.0.20.0100.00917.40
8.0.10.0030.00516.65
8.0.00.0120.00616.58
7.4.330.0040.00015.55
7.4.320.0000.00716.47
7.4.300.0030.00316.37
7.4.290.0060.00316.26
7.4.280.0030.00516.34
7.4.270.0030.00316.36
7.4.260.0000.00716.32
7.4.250.0040.00416.50
7.4.240.0040.00416.49
7.4.230.0030.00316.16
7.4.220.0090.00916.37
7.4.210.0120.00616.46
7.4.200.0070.00016.21
7.4.160.0070.01216.17
7.4.150.0190.03217.40
7.4.140.0120.00917.86
7.4.130.0090.01616.42
7.4.120.0090.01116.33
7.4.110.0090.00916.25
7.4.100.0070.01716.18
7.4.90.0030.01316.24
7.4.80.0160.00319.39
7.4.70.0000.01616.38
7.4.60.0070.01816.33
7.4.50.0070.01116.38
7.4.40.0070.01016.29
7.4.30.0150.00816.16
7.4.00.0050.01114.84
7.3.330.0060.00013.20
7.3.320.0050.00013.13
7.3.310.0000.00716.25
7.3.300.0000.00716.17
7.3.290.0080.01116.17
7.3.280.0070.01016.18
7.3.270.0080.01217.40
7.3.260.0130.00816.29
7.3.250.0110.00716.33
7.3.240.0090.00816.38
7.3.230.0070.01016.42
7.3.210.0090.00916.11
7.3.200.0130.00316.22
7.3.190.0130.00716.13
7.3.180.0100.00516.15
7.3.170.0070.01116.37
7.3.160.0140.00716.39
7.3.120.0030.01314.65
7.3.110.0070.01014.65
7.3.100.0030.01114.66
7.3.90.0040.00814.60
7.3.80.0100.00314.65
7.3.70.0030.00914.59
7.3.60.0070.00714.33
7.3.50.0030.00614.84
7.3.40.0060.00614.48
7.3.30.0070.00714.68
7.3.20.0080.00416.65
7.3.10.0000.00916.46
7.3.00.0030.00716.59
7.2.330.0070.01016.32
7.2.320.0110.00616.38
7.2.310.0100.00716.43
7.2.300.0070.01016.48
7.2.290.0090.00616.32
7.2.250.0100.01015.10
7.2.240.0100.01014.60
7.2.230.0070.00415.04
7.2.220.0060.00614.72
7.2.210.0050.00514.75
7.2.200.0030.01214.75
7.2.190.0060.00614.79
7.2.180.0040.00814.75
7.2.170.0000.01814.81
7.2.60.0100.00716.50
7.2.00.0060.00318.77
7.1.330.0100.00715.41
7.1.320.0030.00915.50
7.1.310.0070.00415.38
7.1.300.0040.00815.55
7.1.290.0080.00015.42
7.1.280.0060.00915.44
7.1.270.0060.00915.79
7.1.260.0030.01015.66
7.1.200.0080.00415.61
7.1.100.0130.01018.02
7.1.70.0150.00616.47
7.1.60.0470.01033.22
7.1.50.0470.01032.90
7.1.40.0600.01732.32
7.1.30.0430.01332.70
7.1.20.0470.01032.62
7.1.10.0300.01014.68
7.1.00.0370.00714.68
7.0.200.0300.01314.72
7.0.190.0330.01014.81
7.0.180.0400.00714.35
7.0.170.0870.01014.28
7.0.160.0330.01014.28
7.0.150.0330.01314.24
7.0.140.0370.00714.46
7.0.130.0430.00314.43
7.0.120.0630.01314.43
7.0.110.0400.01314.36
7.0.100.0430.00714.07
7.0.90.0300.01014.46
7.0.80.0330.01014.28
7.0.70.0370.01014.20
7.0.60.0400.00314.13
7.0.50.0330.01014.44
7.0.40.0400.00014.45
7.0.30.0300.01314.56
7.0.20.0330.01014.35
7.0.10.0370.00714.58
7.0.00.0370.00714.38

preferences:
41.07 ms | 401 KiB | 5 Q