3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public function remove($key) { $val = $this->arr[$key] ?? null; unset($this->arr[$key]); return $val; } }

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)
8.3.60.0140.00716.38
8.3.50.0110.00721.01
8.3.40.0110.00418.56
8.3.30.0150.00618.52
8.3.20.0030.01220.25
8.3.10.0040.01123.48
8.3.00.0060.00317.55
8.2.180.0090.00616.38
8.2.170.0100.00722.96
8.2.160.0180.00320.39
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0030.00526.16
8.2.120.0030.00917.50
8.2.110.0030.00621.94
8.2.100.0030.00919.23
8.2.90.0070.00019.10
8.2.80.0030.00617.97
8.2.70.0030.00617.38
8.2.60.0050.00317.88
8.2.50.0030.00518.07
8.2.40.0050.00319.32
8.2.30.0000.01117.98
8.2.20.0040.00417.57
8.2.10.0040.00417.81
8.2.00.0080.00017.84
8.1.280.0100.00725.92
8.1.270.0050.00222.15
8.1.260.0070.00026.35
8.1.250.0030.01028.09
8.1.240.0090.00022.48
8.1.230.0110.00017.42
8.1.220.0000.00917.74
8.1.210.0030.00518.77
8.1.200.0100.00017.23
8.1.190.0000.00817.10
8.1.180.0040.00418.10
8.1.170.0030.00618.49
8.1.160.0050.00221.99
8.1.150.0000.00718.77
8.1.140.0060.00317.42
8.1.130.0030.00317.49
8.1.120.0030.00317.32
8.1.110.0050.00317.18
8.1.100.0030.00517.32
8.1.90.0000.00717.22
8.1.80.0030.00517.37
8.1.70.0050.00217.40
8.1.60.0030.00517.49
8.1.50.0000.00917.42
8.1.40.0030.00617.28
8.1.30.0000.00817.50
8.1.20.0000.00817.55
8.1.10.0050.00317.38
8.1.00.0040.00417.39
8.0.300.0000.00818.77
8.0.290.0050.00316.63
8.0.280.0000.00718.30
8.0.270.0070.00017.13
8.0.260.0030.00317.13
8.0.250.0000.00716.83
8.0.240.0060.00316.85
8.0.230.0000.00716.76
8.0.220.0000.00716.63
8.0.210.0000.00716.79
8.0.200.0030.00316.89
8.0.190.0000.00716.81
8.0.180.0000.00716.84
8.0.170.0000.00716.76
8.0.160.0040.00416.78
8.0.150.0080.00016.60
8.0.140.0000.00716.73
8.0.130.0060.00013.21
8.0.120.0080.00016.75
8.0.110.0040.00416.81
8.0.100.0000.00716.82
8.0.90.0000.00716.69
8.0.80.0100.00716.76
8.0.70.0000.00716.60
8.0.60.0040.00416.81
8.0.50.0000.00716.77
8.0.30.0110.01017.02
8.0.20.0130.00717.40
8.0.10.0040.00416.82
8.0.00.0120.00716.59
7.4.330.0000.00515.08
7.4.320.0060.00016.34
7.4.300.0000.00616.47
7.4.290.0070.00016.38
7.4.280.0040.00416.39
7.4.270.0070.00016.27
7.4.260.0000.00816.30
7.4.250.0070.00016.42
7.4.240.0040.00416.51
7.4.230.0030.00316.52
7.4.220.0120.00616.59
7.4.210.0090.01016.38
7.4.200.0030.00316.22
7.4.160.0000.01516.49
7.4.150.0200.00417.40
7.4.140.0120.01017.86
7.4.130.0070.00916.30
7.4.120.0110.00916.28
7.4.110.0110.00716.30
7.4.100.0060.01216.34
7.4.90.0130.01016.26
7.4.80.0060.01219.39
7.4.70.0030.01516.43
7.4.60.0140.00916.31
7.4.50.0000.00516.24
7.4.40.0060.01016.36
7.4.30.0130.01016.52
7.4.00.0000.01315.00
7.3.330.0030.00313.16
7.3.320.0000.00613.18
7.3.310.0030.00316.14
7.3.300.0000.00716.14
7.3.290.0070.00016.22
7.3.280.0120.00616.19
7.3.270.0130.00617.40
7.3.260.0140.00716.28
7.3.250.0110.00516.24
7.3.240.0100.00716.45
7.3.230.0040.01116.39
7.3.210.0090.00916.11
7.3.200.0080.00816.43
7.3.190.0070.01016.45
7.3.180.0060.01016.47
7.3.170.0000.01616.27
7.3.160.0100.01016.22
7.2.330.0060.01316.21
7.2.320.0000.02216.30
7.2.310.0030.02116.28
7.2.300.0080.00916.54
7.2.290.0110.01116.59
7.2.80.0030.01016.50
7.2.60.0070.00716.59
7.2.00.0040.00818.61
7.1.200.0000.01215.50
7.1.100.0000.01217.58
7.1.70.0060.00616.94
7.1.60.0040.00819.27
7.1.50.0040.01116.85
7.1.00.0000.08022.57
7.0.200.0180.00614.55
7.0.60.0130.07719.92
7.0.50.0070.08717.86
7.0.40.0170.07319.96
7.0.30.0330.05720.06
7.0.20.0170.09020.12
7.0.10.0330.07320.10
7.0.00.0130.08320.16
5.6.280.0030.07320.93
5.6.210.0100.06320.75
5.6.200.0070.06718.25
5.6.190.0130.08320.55
5.6.180.0270.05320.61
5.6.170.0270.08020.71
5.6.160.0130.07720.71
5.6.150.0030.04018.18
5.6.140.0000.04318.11
5.6.130.0030.05718.27
5.6.120.0070.04020.97
5.6.110.0100.08721.00
5.6.100.0030.07020.98
5.6.90.0100.07321.06
5.6.80.0100.07720.41
5.6.70.3200.03320.38
5.5.350.0100.05320.44
5.5.340.0100.07717.99
5.5.330.0070.06320.40
5.5.320.0300.07720.36
5.5.310.0330.07720.36
5.5.300.0070.04017.92
5.5.290.0070.08317.96
5.5.280.0070.08320.80
5.5.270.0100.03720.88
5.5.260.0070.07320.73
5.5.250.0070.08720.68
5.5.240.0370.06320.29
5.4.450.0530.06319.58
5.4.440.0900.06719.38
5.4.430.0800.06319.61
5.4.420.0700.06719.49
5.4.410.0830.05719.43
5.4.400.0900.06319.29
5.4.390.0600.06319.14
5.4.380.0730.06318.83
5.4.370.0470.06318.83
5.4.360.0730.06319.33
5.4.350.0770.05718.83
5.4.340.0830.06318.83
5.4.320.0900.07319.16
5.4.310.1000.07319.05
5.4.300.0830.05719.15
5.4.290.0730.06018.82
5.4.280.0970.06318.95
5.4.270.0730.05719.05
5.4.260.0930.04718.84
5.4.250.0730.06719.07
5.4.240.0930.06319.27
5.4.230.0830.05019.13
5.4.220.0700.06018.95
5.4.210.0630.07318.82
5.4.200.0970.06719.26
5.4.190.0870.07019.14
5.4.180.0770.07719.11
5.4.170.0830.07018.94
5.4.160.0730.06019.22
5.4.150.0630.05019.29
5.4.140.0800.04016.41
5.4.130.0800.05016.55
5.4.120.0930.05316.45
5.4.110.0970.04716.66
5.4.100.0830.06716.58
5.4.90.0800.06316.60
5.4.80.0970.06016.45
5.4.70.0200.06316.52
5.4.60.0270.03316.43
5.4.50.0000.05316.22
5.4.40.0030.07016.54
5.4.30.0030.05316.57
5.4.20.0270.03316.38

preferences:
51.63 ms | 401 KiB | 5 Q