3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ['a' => 2, 'b'=> null]; unset($a['c']); var_dump($a);

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)
8.3.60.0150.00618.10
8.3.50.0090.00916.27
8.3.40.0120.00418.80
8.3.30.0110.00418.45
8.3.20.0070.00021.60
8.3.10.0000.01023.52
8.3.00.0040.00419.79
8.2.180.0180.00318.08
8.2.170.0070.00722.96
8.2.160.0100.00321.07
8.2.150.0040.00424.18
8.2.140.0140.00024.66
8.2.130.0000.00826.16
8.2.120.0040.00419.63
8.2.110.0030.00621.18
8.2.100.0080.00418.22
8.2.90.0040.00419.09
8.2.80.0030.00517.97
8.2.70.0080.00017.63
8.2.60.0000.00817.93
8.2.50.0040.00418.10
8.2.40.0000.00720.63
8.2.30.0040.00419.11
8.2.20.0080.00018.03
8.2.10.0080.00018.04
8.2.00.0030.00518.02
8.1.280.0040.01125.92
8.1.270.0080.00022.19
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0090.00023.80
8.1.230.0000.01119.00
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0060.00317.00
8.1.190.0040.00417.10
8.1.180.0000.00718.10
8.1.170.0050.00318.50
8.1.160.0050.00218.86
8.1.150.0040.00419.91
8.1.140.0040.00419.50
8.1.130.0070.00018.77
8.1.120.0050.00317.28
8.1.110.0000.00717.22
8.1.100.0050.00217.29
8.1.90.0040.00417.39
8.1.80.0050.00317.38
8.1.70.0000.00817.31
8.1.60.0000.00817.42
8.1.50.0040.00417.42
8.1.40.0040.00417.41
8.1.30.0050.00317.58
8.1.20.0040.00417.48
8.1.10.0080.00017.45
8.1.00.0040.00417.43
8.0.300.0060.00318.77
8.0.290.0060.00316.63
8.0.280.0000.00718.30
8.0.270.0000.00717.09
8.0.260.0060.00016.73
8.0.250.0020.00516.89
8.0.240.0040.00416.84
8.0.230.0070.00416.81
8.0.220.0000.00716.81
8.0.210.0040.00416.73
8.0.200.0040.00416.85
8.0.190.0060.00316.84
8.0.180.0000.00716.75
8.0.170.0020.00516.75
8.0.160.0000.00816.82
8.0.150.0030.00416.79
8.0.140.0040.00416.81
8.0.130.0040.00413.19
8.0.120.0040.00416.80
8.0.110.0040.00416.77
8.0.100.0040.00416.80
8.0.90.0070.00016.85
8.0.80.0030.01316.77
8.0.70.0030.00516.83
8.0.60.0050.00316.80
8.0.50.0040.00416.78
8.0.30.0170.00116.94
8.0.20.0110.01017.40
8.0.10.0050.00216.73
8.0.00.0060.01316.70
7.4.330.0000.00515.55
7.4.320.0000.00716.50
7.4.300.0000.00616.43
7.4.290.0000.00716.43
7.4.280.0060.00316.61
7.4.270.0000.00716.42
7.4.260.0030.00313.30
7.4.250.0070.00016.61
7.4.240.0030.00316.51
7.4.230.0030.00316.66
7.4.220.0090.00816.44
7.4.210.0080.00616.67
7.4.200.0030.00316.59
7.4.160.0140.00716.54
7.4.150.0090.00917.40
7.4.140.0120.00817.86
7.4.130.0150.00616.35
7.4.120.0080.01316.64
7.4.110.0070.01016.46
7.4.100.0140.00716.47
7.4.90.0150.00416.54
7.4.80.0060.01119.39
7.4.70.0060.00916.58
7.4.60.0110.00516.34
7.4.50.0060.00916.25
7.4.40.0080.00816.32
7.4.30.0070.01016.44
7.4.00.0090.00814.76
7.3.330.0000.00712.93
7.3.320.0000.00513.04
7.3.310.0000.00716.32
7.3.300.0000.00616.19
7.3.290.0060.00816.18
7.3.280.0090.00816.15
7.3.270.0100.00717.40
7.3.260.0070.00916.35
7.3.250.0080.01016.33
7.3.240.0090.00816.25
7.3.230.0030.01416.38
7.3.210.0130.00316.48
7.3.200.0080.01216.16
7.3.190.0120.00916.08
7.3.180.0000.01616.23
7.3.170.0100.00616.24
7.3.160.0070.01016.39
7.3.120.0070.01314.46
7.3.110.0070.01014.67
7.3.100.0110.00614.66
7.3.90.0070.01114.95
7.3.80.0040.01214.36
7.3.70.0090.00314.82
7.3.60.0070.00414.69
7.3.50.0000.01314.88
7.3.40.0030.01014.83
7.3.30.0080.00414.36
7.3.20.0050.00516.54
7.3.10.0070.00716.65
7.3.00.0030.00916.21
7.2.330.0130.00616.27
7.2.320.0040.01416.61
7.2.310.0160.00016.27
7.2.300.0000.01616.54
7.2.290.0090.01416.57
7.2.250.0070.01115.18
7.2.240.0100.01015.14
7.2.230.0060.01315.09
7.2.220.0090.00614.97
7.2.210.0090.00314.95
7.2.200.0080.00814.73
7.2.190.0090.00314.65
7.2.180.0100.00714.84
7.2.170.0040.01114.88
7.2.60.0070.00716.56
7.1.330.0070.00715.28
7.1.320.0030.01015.64
7.1.310.0100.00615.83
7.1.300.0070.01015.84
7.1.290.0000.00915.77
7.1.280.0060.00615.48
7.1.270.0080.00515.57
7.1.260.0100.00715.70
7.1.200.0070.00715.86
7.1.70.0030.00617.23
7.1.60.0700.01333.21
7.1.50.0700.01032.72
7.1.40.0500.01332.56
7.1.30.0530.01332.54
7.1.20.0730.01032.67
7.1.10.0530.01014.55
7.1.00.0430.01014.85
7.0.200.0700.01315.01
7.0.190.0500.01014.55
7.0.180.0400.01714.14
7.0.170.0400.01314.42
7.0.160.0070.00714.42
7.0.150.0370.01314.58
7.0.140.0070.00714.49
7.0.130.0470.01014.43
7.0.120.0570.00714.56
7.0.110.0630.01014.35
7.0.100.0800.01714.57
7.0.90.0630.02014.51
7.0.80.0070.01314.70
7.0.70.0630.01014.48
7.0.60.0530.00314.29
7.0.50.0470.01314.57
7.0.40.0100.01014.58
7.0.30.0570.01014.57
7.0.20.0770.00714.50
7.0.10.0700.01314.80
7.0.00.0470.01014.63

preferences:
55.19 ms | 400 KiB | 5 Q