3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface A { function m(B $s): self; } class B implements A { function m(self $s): parent { return $this; } } class C extends B { function m(parent $s): A { return $this; } } $c = new C(); $r = $c->m($c); var_dump($r instanceof C);

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)
8.3.60.0090.00618.43
8.3.50.0070.01018.31
8.3.40.0110.00418.48
8.3.30.0060.00918.59
8.3.20.0040.00419.06
8.3.10.0050.00321.69
8.3.00.0070.00023.66
8.2.180.0130.00725.92
8.2.170.0030.01018.79
8.2.160.0030.01022.96
8.2.150.0040.00425.66
8.2.140.0000.00924.66
8.2.130.0030.00526.16
8.2.120.0080.00019.66
8.2.110.0070.00319.20
8.2.100.0000.01117.78
8.2.90.0000.00917.78
8.2.80.0030.00518.86
8.2.70.0050.00317.91
8.2.60.0000.00718.09
8.2.50.0000.00818.10
8.2.40.0050.00317.62
8.2.30.0040.00419.05
8.2.20.0030.00518.03
8.2.10.0070.00017.94
8.2.00.0000.00719.33
8.1.280.0110.00425.92
8.1.270.0080.00020.25
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0040.00422.02
8.1.230.0110.00020.84
8.1.220.0040.00417.74
8.1.210.0040.00418.98
8.1.200.0000.00917.23
8.1.190.0060.00317.11
8.1.180.0050.00518.10
8.1.170.0040.00418.33
8.1.160.0070.00018.80
8.1.150.0040.00418.65
8.1.140.0070.00017.57
8.1.130.0000.00818.93
8.1.120.0000.00717.21
8.1.110.0030.00517.21
8.1.100.0000.00817.32
8.1.90.0000.00817.21
8.1.80.0070.00017.39
8.1.70.0050.00317.29
8.1.60.0080.00017.47
8.1.50.0000.00817.38
8.1.40.0000.00817.28
8.1.30.0040.00417.45
8.1.20.0040.00417.50
8.1.10.0030.00517.37
8.1.00.0020.00517.27
8.0.300.0040.00420.21
8.0.290.0000.00716.61
8.0.280.0030.00318.29
8.0.270.0030.00517.05
8.0.260.0000.00617.18
8.0.250.0070.00016.75
8.0.240.0070.00016.92
8.0.230.0000.00716.91
8.0.220.0030.00616.69
8.0.210.0050.00316.84
8.0.200.0030.00516.86
8.0.190.0030.00316.89
8.0.180.0000.00816.84
8.0.170.0050.00516.76
8.0.160.0040.00416.70
8.0.150.0040.00416.64
8.0.140.0030.00716.67
8.0.130.0000.00513.25
8.0.120.0000.00716.77
8.0.110.0040.00416.78
8.0.100.0070.00016.81
8.0.90.0040.00416.79
8.0.80.0060.01016.77
8.0.70.0040.00416.83
8.0.60.0000.00816.81
8.0.50.0040.00416.64
8.0.30.0100.00916.92
8.0.20.0100.00817.40
8.0.10.0000.00816.93
8.0.00.0070.01116.72
7.4.330.0040.00015.55
7.4.320.0030.00316.45
7.4.300.0000.00616.56
7.4.290.0000.00716.35
7.4.280.0050.00316.48
7.4.270.0080.00016.52
7.4.260.0070.00016.57
7.4.250.0050.00216.41
7.4.240.0030.00316.44
7.4.230.0030.00316.51
7.4.220.0080.00016.19
7.4.210.0060.01016.50
7.4.200.0030.00316.54
7.4.160.0050.01416.43
7.4.140.0100.00817.86
7.4.130.0090.00916.43
7.4.120.0100.00816.48
7.4.110.0130.00316.44
7.4.100.0100.00716.39
7.4.90.0130.00916.44
7.4.80.0080.01119.39
7.4.70.0070.01016.53
7.4.60.0100.00616.35
7.4.50.0080.00316.02
7.4.40.0130.00916.60
7.4.00.0060.00914.84
7.3.330.0030.00313.22
7.3.320.0000.00513.07
7.3.310.0030.00316.30
7.3.300.0000.00716.25
7.3.290.0050.00216.20
7.3.280.0120.00316.22
7.3.260.0130.00616.30
7.3.240.0100.00916.35
7.3.230.0170.00016.32
7.3.210.0070.01016.36
7.3.200.0110.00516.50
7.3.190.0120.00916.43
7.3.180.0100.00716.23
7.3.170.0110.00716.33
7.3.160.0070.01016.27
7.3.120.0050.01014.70
7.3.110.0090.00614.77
7.3.100.0050.01314.72
7.3.90.0060.00814.88
7.3.80.0090.00514.80
7.3.70.0100.00314.73
7.3.60.0040.01114.60
7.3.50.0070.00614.76
7.3.40.0050.01014.66
7.3.30.0030.00914.61
7.3.20.0090.00316.54
7.3.10.0090.00516.70
7.3.00.0020.01216.64
7.2.330.0130.00616.27
7.2.320.0040.01416.63
7.2.310.0060.01216.48
7.2.300.0090.00916.27
7.2.290.0150.00416.15
7.2.250.0130.00714.93
7.2.240.0080.01014.87
7.2.230.0090.00414.96
7.2.220.0080.00714.95
7.2.210.0050.01414.74
7.2.200.0020.01114.82
7.2.190.0070.01014.67
7.2.180.0050.01014.62
7.2.170.0040.01114.75
7.2.160.0050.01014.87
7.2.150.0100.00516.67
7.2.140.0070.00716.66
7.2.130.0030.01316.86
7.2.120.0060.01016.71
7.2.110.0170.00715.85
7.2.100.0210.00515.78
7.2.90.0120.00915.83
7.2.80.0160.01015.82
7.2.70.0160.01015.85
7.2.60.0210.00615.70
7.2.50.0150.00715.73
7.2.40.0150.00715.77
7.2.30.0120.00915.62
7.2.20.0170.01115.74
7.2.10.0180.00715.83
7.2.00.0200.00815.76
7.1.330.0090.00715.69
7.1.320.0030.01115.68
7.1.310.0050.00715.87
7.1.300.0080.00615.65
7.1.290.0040.01015.43
7.1.280.0030.01115.57
7.1.270.0040.01215.59
7.1.260.0070.00715.40
7.1.250.0060.00715.67
7.1.240.0070.01015.89
7.1.230.0270.00714.71
7.1.220.0180.01014.65
7.1.210.0190.00914.69
7.1.200.0200.00914.83
7.1.190.0170.00714.69
7.1.180.0360.00514.54
7.1.170.0470.00714.47
7.1.160.0190.00614.51
7.1.150.0270.00914.45
7.1.140.0220.00514.33
7.1.130.0180.00814.45
7.1.120.0230.00514.33
7.1.110.0200.00814.53
7.1.100.0170.00814.43
7.1.90.0170.00614.45
7.1.80.0220.00914.39
7.1.70.0240.00714.30
7.1.60.0360.00925.28
7.1.50.0320.01025.18
7.1.40.0340.01124.86
7.1.30.0350.00824.76
7.1.20.0320.00724.90
7.1.10.0390.00914.14
7.1.00.0210.00614.02
7.0.330.0040.00715.21
7.0.320.0000.00815.33
7.0.310.0180.00814.72
7.0.300.0250.00814.32
7.0.290.0190.00714.53
7.0.280.0130.01014.24
7.0.270.0260.00914.66
7.0.260.0200.00614.73
7.0.250.0140.00514.69
7.0.240.0170.00614.71
7.0.230.0230.00514.46
7.0.220.0170.01014.64
7.0.210.0460.00614.64
7.0.200.0110.00514.58
7.0.190.0190.01114.61
7.0.180.0200.00714.00
7.0.170.0160.00714.11
7.0.160.0180.00513.98
7.0.150.0160.00514.14
7.0.140.0280.00713.93
7.0.130.0350.01014.05
7.0.120.0230.00713.97
7.0.110.0190.00314.01
7.0.100.0200.00514.06
7.0.90.0110.01014.07
7.0.80.0180.00913.96
7.0.70.0160.00913.99
7.0.60.0190.00713.95
7.0.50.0160.00714.12
7.0.40.0150.00913.35
7.0.30.0150.00813.57
7.0.20.0150.00813.35
7.0.10.0110.00713.42
7.0.00.0150.00913.46
5.6.400.0100.00314.08
5.6.390.0100.00614.04
5.6.380.0060.00813.98
5.6.370.0110.00614.01
5.6.360.0160.00414.18
5.6.350.0110.00614.02
5.6.340.0080.01014.06
5.6.330.0100.00614.14
5.6.320.0080.00714.05
5.6.310.0110.00714.21
5.6.300.0100.00813.95
5.6.290.0110.00813.95
5.6.280.0110.00714.13
5.6.270.0100.00414.17
5.6.260.0090.00914.16
5.6.250.0110.00714.11
5.6.240.0090.00913.97
5.6.230.0100.00813.92
5.6.220.0130.00514.01
5.6.210.0100.00613.88
5.6.200.0090.00813.97
5.6.190.0140.00513.88
5.6.180.0130.00514.10
5.6.170.0140.00414.03
5.6.160.0110.00713.92
5.6.150.0060.01114.08
5.6.140.0070.00814.07
5.6.130.0100.00814.08
5.6.120.0120.00514.08
5.6.110.0110.00614.12
5.6.100.0070.01014.02
5.6.90.0080.00814.01
5.6.80.0050.01113.93
5.6.70.0090.00713.89
5.6.60.0080.00913.95
5.6.50.0080.00813.98
5.6.40.0110.00614.06
5.6.30.0030.01513.96
5.6.20.0110.00713.98
5.6.10.0060.00814.05
5.6.00.0110.00613.89
5.5.380.0090.00410.73
5.5.370.0100.00711.00
5.5.360.0090.00410.91
5.5.350.0050.00810.72
5.5.340.0080.00810.77
5.5.330.0080.00610.84
5.5.320.0100.00410.84
5.5.310.0050.00910.70
5.5.300.0080.00710.92
5.5.290.0090.00410.83
5.5.280.0060.00710.85
5.5.270.0100.00510.86
5.5.260.0080.00610.84
5.5.250.0080.00710.89
5.5.240.0060.00610.68
5.5.230.0080.00510.67
5.5.220.0080.00510.91
5.5.210.0110.00510.75
5.5.200.0040.00910.72
5.5.190.0080.00910.84
5.5.180.0090.00710.73
5.5.170.0130.00713.93
5.5.160.0100.00410.63
5.5.150.0090.00410.82
5.5.140.0040.00910.62
5.5.130.0060.00710.60
5.5.120.0040.00810.87
5.5.110.0050.00910.55
5.5.100.0070.00810.68
5.5.90.0120.00310.97
5.5.80.0070.00610.78
5.5.70.0050.00610.64
5.5.60.0090.00410.89
5.5.50.0100.00210.81
5.5.40.0080.00510.88
5.5.30.0040.00910.78
5.5.20.0060.00710.85
5.5.10.0080.00710.65
5.5.00.0100.00210.86
5.4.450.0080.00610.84
5.4.440.0100.00310.76
5.4.430.0110.00310.63
5.4.420.0120.00210.69
5.4.410.0080.00510.79
5.4.400.0070.00510.70
5.4.390.0070.00710.74
5.4.380.0080.00510.77
5.4.370.0110.00210.80
5.4.360.0100.00110.45
5.4.350.0050.00610.69
5.4.340.0110.00410.87
5.4.330.0090.00510.80
5.4.320.0060.00810.50
5.4.310.0080.00410.93
5.4.300.0060.00710.80
5.4.290.0070.00710.84
5.4.280.0100.00210.83
5.4.270.0090.00710.60
5.4.260.0090.00510.59
5.4.250.0100.00210.84
5.4.240.0040.01010.70
5.4.230.0070.01110.68
5.4.220.0090.00410.51
5.4.210.0050.00610.63
5.4.200.0110.00310.59
5.4.190.0100.00310.61
5.4.180.0100.00410.56
5.4.170.0090.00510.60
5.4.160.0110.00410.91
5.4.150.0070.00510.63
5.4.140.0080.00310.50
5.4.130.0040.00710.57
5.4.120.0060.00510.82
5.4.110.0050.00710.62
5.4.100.0090.00310.73
5.4.90.0090.00310.56
5.4.80.0070.00710.61
5.4.70.0080.00410.81
5.4.60.0060.00610.82
5.4.50.0080.00610.90
5.4.40.0060.00710.76
5.4.30.0100.00410.79
5.4.20.0080.00610.63
5.4.10.0100.00310.86
5.4.00.0100.00010.72
5.3.290.0070.00410.36
5.3.280.0080.00210.20
5.3.270.0060.00510.20
5.3.260.0040.00610.20
5.3.250.0060.00710.28
5.3.240.0080.0029.97
5.3.230.0060.00610.17
5.3.220.0090.00410.21
5.3.210.0040.00710.11
5.3.200.0060.00410.26
5.3.190.0060.00510.19
5.3.180.0070.00710.33
5.3.170.0030.00710.42
5.3.160.0060.00510.33
5.3.150.0070.00610.37
5.3.140.0050.00910.10
5.3.130.0060.00510.26
5.3.120.0060.00410.30
5.3.110.0070.00410.14
5.3.100.0060.00610.26
5.3.90.0050.00610.39
5.3.80.0040.00810.27
5.3.70.0080.00410.18
5.3.60.0030.00710.26
5.3.50.0070.00610.09
5.3.40.0140.00010.29
5.3.30.0060.00910.14
5.3.20.0090.00310.11
5.3.10.0070.0049.97
5.3.00.0030.00710.02
5.2.170.0070.0039.44
5.2.160.0070.0059.42
5.2.150.0080.0029.40
5.2.140.0070.0039.40
5.2.130.0030.0069.40
5.2.120.0070.0039.40
5.2.110.0050.0039.40
5.2.100.0050.0059.43
5.2.90.0070.0039.41
5.2.80.0100.0029.40
5.2.70.0050.0039.40
5.2.60.0050.0059.40
5.2.50.0060.0049.42
5.2.40.0040.0049.44
5.2.30.0070.0049.40
5.2.20.0040.0069.40
5.2.10.0030.0069.40
5.2.00.0050.0059.40
5.1.60.0060.0039.40
5.1.50.0070.0029.40
5.1.40.0050.0059.40
5.1.30.0040.0059.40
5.1.20.0080.0019.40
5.1.10.0070.0029.40
5.1.00.0050.0039.40
5.0.50.0040.0039.40
5.0.40.0060.0009.40
5.0.30.0040.0039.40
5.0.20.0070.0019.40
5.0.10.0020.0069.40
5.0.00.0030.0059.40
4.4.90.0060.0009.40
4.4.80.0060.0009.40
4.4.70.0040.0019.40
4.4.60.0020.0069.40
4.4.50.0030.0029.40
4.4.40.0030.0049.40
4.4.30.0080.0009.40
4.4.20.0030.0039.40
4.4.10.0050.0019.40
4.4.00.0030.0049.40
4.3.110.0050.0009.40
4.3.100.0040.0039.40
4.3.90.0060.0009.40
4.3.80.0040.0039.40
4.3.70.0020.0059.40
4.3.60.0040.0039.40
4.3.50.0030.0039.40
4.3.40.0020.0059.40
4.3.30.0010.0049.40
4.3.20.0040.0009.40
4.3.10.0020.0039.40
4.3.00.0010.0049.40

preferences:
73.92 ms | 401 KiB | 5 Q