3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public $state = 1; } class B { public $a; public function __construct() { $this->a = $GLOBALS['a']; } } $GLOBALS['a'] = new A(); $b = new B(); echo $b->a->state . PHP_EOL; $GLOBALS['a']->state++; echo $b->a->state . PHP_EOL; $GLOBALS['a'] = new A(); echo $b->a->state . PHP_EOL; echo $GLOBALS['a']->state . PHP_EOL;

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)
8.3.60.0100.00716.35
8.3.50.0120.00617.69
8.3.40.0070.00718.73
8.3.30.0040.01118.63
8.3.20.0050.00220.25
8.3.10.0060.00323.56
8.3.00.0040.00422.43
8.2.180.0070.01416.61
8.2.170.0070.00722.96
8.2.160.0130.00019.46
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0040.00419.85
8.2.110.0030.00621.06
8.2.100.0080.00418.04
8.2.90.0040.00418.34
8.2.80.0040.00417.97
8.2.70.0060.00317.63
8.2.60.0000.00718.16
8.2.50.0040.00418.10
8.2.40.0060.00322.32
8.2.30.0000.00819.32
8.2.20.0000.00817.86
8.2.10.0040.00418.00
8.2.00.0050.00317.78
8.1.280.0100.01025.92
8.1.270.0050.00223.96
8.1.260.0060.00326.35
8.1.250.0040.00428.09
8.1.240.0060.00319.19
8.1.230.0110.00020.90
8.1.220.0040.00417.77
8.1.210.0040.00420.30
8.1.200.0060.00317.23
8.1.190.0000.00817.23
8.1.180.0000.00818.10
8.1.170.0030.00618.46
8.1.160.0040.00422.16
8.1.150.0000.00718.77
8.1.140.0000.00819.64
8.1.130.0070.00017.77
8.1.120.0040.00417.33
8.1.110.0000.00717.43
8.1.100.0040.00417.39
8.1.90.0050.00317.47
8.1.80.0000.00717.36
8.1.70.0000.00717.37
8.1.60.0030.00617.62
8.1.50.0050.00317.37
8.1.40.0040.00417.41
8.1.30.0040.00417.57
8.1.20.0080.00017.62
8.1.10.0000.00817.63
8.1.00.0040.00417.39
8.0.300.0000.00720.03
8.0.290.0060.00316.75
8.0.280.0030.00318.38
8.0.270.0070.00017.31
8.0.260.0030.00317.52
8.0.250.0020.00517.00
8.0.240.0000.00716.97
8.0.230.0040.00416.96
8.0.220.0070.00016.88
8.0.210.0050.00216.85
8.0.200.0030.00316.82
8.0.190.0000.00716.84
8.0.180.0040.00416.91
8.0.170.0030.00516.88
8.0.160.0040.00416.81
8.0.150.0000.00716.88
8.0.140.0030.00516.88
8.0.130.0000.00613.36
8.0.120.0060.00316.72
8.0.110.0090.00016.84
8.0.100.0040.00416.83
8.0.90.0040.00416.89
8.0.80.0120.00316.86
8.0.70.0040.00316.93
8.0.60.0000.00716.77
8.0.50.0040.00416.80
8.0.30.0080.01017.18
8.0.20.0110.00717.40
8.0.10.0040.00416.97
8.0.00.0120.00616.59
7.4.330.0000.00515.15
7.4.320.0030.00316.52
7.4.300.0030.00316.53
7.4.290.0030.00316.50
7.4.280.0000.00816.60
7.4.270.0030.00316.51
7.4.260.0040.00716.52
7.4.250.0000.00816.52
7.4.240.0040.00416.64
7.4.230.0000.00716.41
7.4.220.0000.00716.60
7.4.210.0050.00816.63
7.4.200.0000.00716.42
7.4.160.0060.00916.48
7.4.150.0090.00917.40
7.4.140.0130.00817.86
7.4.130.0080.01016.49
7.4.120.0090.00916.49
7.4.110.0070.01016.73
7.4.100.0140.00716.67
7.4.90.0090.00916.36
7.4.80.0060.01119.39
7.4.70.0110.00516.46
7.4.60.0090.00616.43
7.4.50.0030.01016.42
7.4.40.0150.00016.38
7.4.30.0080.00816.59
7.4.10.0040.01414.95
7.4.00.0080.00914.87
7.3.330.0050.00013.34
7.3.320.0050.00013.35
7.3.310.0040.00416.42
7.3.300.0030.00316.37
7.3.290.0060.00816.32
7.3.280.0080.00916.41
7.3.270.0150.00917.40
7.3.260.0110.01016.55
7.3.250.0070.00916.46
7.3.240.0030.01416.46
7.3.230.0060.01116.49
7.3.210.0040.01616.29
7.3.200.0030.01316.43
7.3.190.0130.00916.45
7.3.180.0140.00316.64
7.3.170.0160.00616.56
7.3.160.0100.00716.32
7.3.130.0150.00414.76
7.3.120.0100.00514.54
7.3.110.0030.01314.69
7.3.100.0060.00614.58
7.3.90.0030.01114.71
7.3.80.0090.00314.86
7.3.70.0060.01014.83
7.3.60.0060.01114.79
7.3.50.0080.00714.90
7.3.40.0070.00514.86
7.3.30.0100.00414.88
7.3.20.0100.00316.56
7.3.10.0050.00716.70
7.3.00.0070.00916.74
7.2.330.0070.01116.43
7.2.320.0100.01316.80
7.2.310.0100.00716.58
7.2.300.0070.01216.41
7.2.290.0090.01216.79
7.2.260.0050.01314.76
7.2.250.0060.01014.84
7.2.240.0030.01014.99
7.2.230.0050.01015.08
7.2.220.0050.01214.94
7.2.210.0020.01115.07
7.2.200.0070.00714.84
7.2.190.0100.00814.97
7.2.180.0090.00815.13
7.2.170.0050.00715.16
7.2.160.0030.01514.84
7.2.150.0090.00616.98
7.2.140.0070.01016.58
7.2.130.0090.00616.90
7.2.120.0070.00717.05
7.2.110.0000.01517.07
7.2.100.0090.00316.59
7.2.90.0130.00316.97
7.2.80.0070.01016.97
7.2.70.0040.01116.88
7.2.60.0080.00816.79
7.2.50.0110.00017.06
7.2.40.0040.01116.95
7.2.30.0090.00316.85
7.2.20.0110.00416.91
7.2.10.0040.01116.93
7.2.00.0040.00818.34
7.1.330.0030.01215.84
7.1.320.0030.00815.85
7.1.310.0060.00815.68
7.1.300.0040.01115.79
7.1.290.0060.00715.71
7.1.280.0050.00915.87
7.1.270.0030.00915.75
7.1.260.0080.01015.72
7.1.250.0040.01115.65
7.1.240.0000.01115.81
7.1.230.0070.00715.79
7.1.220.0100.00615.73
7.1.210.0070.00715.66
7.1.200.0180.00915.57
7.1.190.0060.01015.61
7.1.180.0080.00615.72
7.1.170.0030.01315.83
7.1.160.0000.01415.86
7.1.150.0110.00415.87
7.1.140.0080.00415.98
7.1.130.0060.00615.83
7.1.120.0030.01015.98
7.1.110.0060.00615.87
7.1.100.0000.01115.55
7.1.90.0110.00415.81
7.1.80.0030.01115.54
7.1.70.0010.00816.59
7.1.60.0110.00316.45
7.1.50.0000.00815.67
7.1.40.0090.00315.84
7.1.30.0030.00515.87
7.1.20.0000.00915.64
7.1.10.0030.00915.61
7.1.00.0080.03619.01
7.0.330.0070.00715.32
7.0.320.0000.01215.39
7.0.310.0040.00815.28
7.0.300.0030.01015.47
7.0.290.0000.00915.52
7.0.280.0070.01015.19
7.0.270.0030.01015.39
7.0.260.0090.00615.46
7.0.250.0030.00615.45
7.0.240.0000.01015.65
7.0.230.0040.00415.42
7.0.220.0000.01015.34
7.0.210.0040.00415.36
7.0.200.0110.00715.26
7.0.190.0090.00615.36
7.0.180.0030.00715.44
7.0.170.0040.00415.39
7.0.160.0000.00815.16
7.0.150.0060.00615.55
7.0.140.0040.01115.45
7.0.130.0090.00015.30
7.0.120.0070.00715.64
7.0.110.0040.00415.55
7.0.100.0080.03317.74
7.0.90.0150.02817.65
7.0.80.0100.03117.69
7.0.70.0050.03417.67
7.0.60.0030.03417.76
7.0.50.0080.03117.90
7.0.40.0110.02816.85
7.0.30.0080.03116.86
7.0.20.0070.03616.96
7.0.10.0090.03216.89
7.0.00.0030.03716.89
5.6.400.0070.00314.72
5.6.390.0030.01214.43
5.6.380.0080.00814.82
5.6.370.0040.00814.30
5.6.360.0090.00614.40
5.6.350.0030.00614.33
5.6.340.0040.01114.34
5.6.330.0070.00414.46
5.6.320.0090.00314.25
5.6.310.0030.00714.55
5.6.300.0070.00414.31
5.6.290.0060.00614.23
5.6.280.0040.00814.71
5.6.270.0060.00614.66
5.6.260.0060.00614.80
5.6.250.0130.02817.71
5.6.240.0070.03517.56
5.6.230.0120.03017.61
5.6.220.0100.03317.54
5.6.210.0090.03117.66
5.6.200.0080.03417.69
5.6.190.0050.03317.88
5.6.180.0100.03817.82
5.6.170.0080.03217.62
5.6.160.0110.02617.79
5.6.150.0060.03217.85
5.6.140.0100.02817.66
5.6.130.0090.03217.78
5.6.120.0090.03217.55
5.6.110.0060.03517.71
5.6.100.0070.03217.68
5.6.90.0080.03017.87
5.6.80.0050.03217.47
5.6.70.0100.02917.49
5.6.60.0090.03017.36
5.6.50.0100.02717.44
5.6.40.0050.03317.48
5.6.30.0100.03017.44
5.6.20.0050.03417.39
5.6.10.0080.03217.29
5.6.00.0100.02717.44

preferences:
70.85 ms | 401 KiB | 5 Q