3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public $a; public function __construct( $a = 1 ) { $this->a = $a; } } class B extends A { public function __construct( public string $b = 'hello' ) {} } $b = new B(); var_dump($b->a, $b->b);

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)
8.4.130.0050.00419.02
8.4.120.0120.00720.70
8.4.110.0110.00618.79
8.4.100.0120.00517.81
8.4.90.0100.01020.54
8.4.80.0060.00519.17
8.4.70.0120.00820.50
8.4.60.0130.00720.47
8.4.50.0120.01020.52
8.4.40.0000.01919.54
8.4.30.0130.00720.52
8.4.20.0100.01019.57
8.4.10.0060.00320.56
8.3.260.0120.00816.51
8.3.250.0070.01016.60
8.3.240.0120.00716.32
8.3.230.0120.00716.66
8.3.220.0050.00219.05
8.3.210.0130.00716.82
8.3.200.0070.00116.41
8.3.190.0050.00317.35
8.3.180.0110.00718.60
8.3.170.0160.00317.09
8.3.160.0000.00818.28
8.3.150.0150.00616.72
8.3.140.0040.00416.54
8.3.130.0030.00618.30
8.3.120.0110.00819.02
8.3.110.0040.00420.94
8.3.100.0030.00616.75
8.3.90.0000.00816.59
8.3.80.0030.00618.43
8.3.70.0150.00016.49
8.3.60.0140.00418.56
8.3.50.0130.00523.70
8.3.40.0130.00318.79
8.3.30.0070.00718.80
8.3.20.0000.00824.18
8.3.10.0000.00824.66
8.3.00.0050.00326.16
8.2.290.0060.00216.95
8.2.280.0100.01018.34
8.2.270.0070.01116.81
8.2.260.0080.00017.05
8.2.250.0040.00416.44
8.2.240.0120.00617.40
8.2.230.0000.00722.58
8.2.220.0060.00324.06
8.2.210.0040.00426.77
8.2.200.0050.00516.38
8.2.190.0080.00816.75
8.2.180.0000.01525.92
8.2.170.0040.01118.84
8.2.160.0140.00022.96
8.2.150.0050.00325.66
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0070.00019.83
8.2.110.0090.00020.53
8.2.100.0060.00320.45
8.1.330.0070.00516.16
8.1.320.0120.00618.27
8.1.310.0110.00716.54
8.1.300.0040.01418.38
8.1.290.0060.00318.88
8.1.280.0070.00725.92
8.1.270.0000.00823.99
8.1.260.0120.00626.35
8.1.250.0050.00228.09
8.1.240.0000.01119.78
8.1.230.0030.00618.83
8.0.300.0160.00317.60
7.4.80.0090.01116.27
7.4.70.0150.00716.38
7.4.60.0070.01216.25
7.4.50.0140.00316.45
7.4.40.0120.00616.27
7.4.30.0110.00716.39
7.4.20.0130.00716.26
7.4.10.0110.01116.28
7.4.00.0080.01016.39
7.3.200.0080.00916.24
7.3.190.0090.01016.26
7.3.180.0100.00716.18
7.3.170.0100.01016.20
7.3.160.0140.00416.25
7.3.150.0140.00416.22
7.3.140.0110.00616.05
7.3.130.0110.00516.07
7.3.120.0090.00916.21
7.3.110.0090.00716.00
7.3.100.0080.00816.14
7.3.90.0100.00816.15
7.3.80.0110.00816.29
7.3.70.0070.00816.09
7.3.60.0130.00616.17
7.3.50.0090.01116.12
7.3.40.0070.01116.22
7.3.30.0120.00716.14
7.3.20.0140.00616.25
7.3.10.0120.00616.04
7.3.00.0060.01316.23
7.2.320.0100.00716.33
7.2.310.0080.00916.41
7.2.300.0110.00616.23
7.2.290.0080.01016.26
7.2.280.0100.00816.29
7.2.270.0100.00716.27
7.2.260.0080.01016.15
7.2.250.0060.01216.27
7.2.240.0060.01016.40
7.2.230.0100.00816.14
7.2.220.0010.01716.19
7.2.210.0040.01416.29
7.2.200.0130.00316.41
7.2.190.0140.00316.27
7.2.180.0110.00716.34
7.2.170.0130.00916.31
7.2.160.0090.00916.34
7.2.150.0080.01116.30
7.2.140.0130.00716.52
7.2.130.0100.00916.26
7.2.120.0110.00816.39
7.2.110.0100.00916.41
7.2.100.0130.00616.35
7.2.90.0090.00916.33
7.2.80.0120.00816.42
7.2.70.0090.00916.40
7.2.60.0070.01416.29
7.2.50.0070.01316.21
7.2.40.0090.01116.37
7.2.30.0110.01016.26
7.2.20.0130.00716.41
7.2.10.0090.00916.30
7.2.00.0280.01016.34

preferences:
27.23 ms | 403 KiB | 5 Q