3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a= ['d'=>'d','b'=>'b']; unset($a['f']); 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)
8.3.60.0180.00016.50
8.3.50.0140.00016.38
8.3.40.0060.01218.53
8.3.30.0070.00718.52
8.3.20.0070.00020.29
8.3.10.0090.00021.73
8.3.00.0060.00321.96
8.2.180.0110.00716.50
8.2.170.0150.00022.96
8.2.160.0090.00920.26
8.2.150.0000.00824.18
8.2.140.0050.00324.66
8.2.130.0000.00821.18
8.2.120.0000.00726.35
8.2.110.0000.01019.16
8.2.100.0040.00818.03
8.2.90.0000.00819.22
8.2.80.0000.00817.97
8.2.70.0080.00017.38
8.2.60.0060.00317.93
8.2.50.0040.00418.10
8.2.40.0000.00720.55
8.2.30.0000.00920.91
8.2.20.0080.00017.99
8.2.10.0030.00517.91
8.2.00.0040.00417.97
8.1.280.0100.00725.92
8.1.270.0040.00422.06
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0000.01019.16
8.1.230.0070.00319.10
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0030.00617.22
8.1.190.0040.00417.22
8.1.180.0040.00418.10
8.1.170.0000.00820.31
8.1.160.0030.00318.96
8.1.150.0000.00820.56
8.1.140.0040.00419.42
8.1.130.0000.00718.69
8.1.120.0000.00817.37
8.1.110.0000.00817.36
8.1.100.0040.00417.35
8.1.90.0000.00817.42
8.1.80.0060.00317.36
8.1.70.0000.00817.38
8.1.60.0080.00017.39
8.1.50.0080.00017.35
8.1.40.0040.00417.34
8.1.30.0080.00517.55
8.1.20.0000.00817.43
8.1.10.0040.00417.43
8.1.00.0040.00417.32
8.0.300.0060.00318.77
8.0.290.0000.00716.63
8.0.280.0060.00318.36
8.0.270.0000.00717.23
8.0.260.0000.00616.66
8.0.250.0030.00316.88
8.0.240.0070.00016.88
8.0.230.0050.00316.91
8.0.220.0040.00416.86
8.0.210.0070.00016.81
8.0.200.0000.00616.91
8.0.190.0040.00416.77
8.0.180.0040.00416.90
8.0.170.0000.00716.82
8.0.160.0030.00316.73
8.0.150.0040.00416.68
8.0.140.0000.00716.83
8.0.130.0000.00613.24
8.0.120.0040.00416.80
8.0.110.0070.00016.80
8.0.100.0040.00416.66
8.0.90.0040.00416.79
8.0.80.0160.00716.80
8.0.70.0000.00716.83
8.0.60.0030.00516.71
8.0.50.0000.00816.63
8.0.30.0120.00817.03
8.0.20.0130.00817.40
8.0.10.0040.00416.98
8.0.00.0100.00716.88
7.4.330.0030.00315.55
7.4.320.0030.00316.64
7.4.300.0000.00616.65
7.4.290.0000.00716.50
7.4.280.0040.00416.59
7.4.270.0000.00716.64
7.4.260.0000.00716.38
7.4.250.0000.00716.56
7.4.240.0000.00716.62
7.4.230.0070.00016.67
7.4.220.0100.00716.45
7.4.210.0030.01116.43
7.4.200.0040.00416.40
7.4.160.0090.00916.40
7.4.150.0150.00317.40
7.4.140.0090.00917.86
7.4.130.0110.00816.48
7.4.120.0060.01616.42
7.4.110.0090.01516.29
7.4.100.0090.00916.36
7.4.90.0120.00616.54
7.4.80.0130.00419.39
7.4.70.0030.01216.34
7.4.60.0040.01216.51
7.4.50.0070.00716.31
7.4.40.0060.01116.30
7.4.30.0090.00916.39
7.4.00.0100.00715.06
7.3.330.0000.00512.92
7.3.320.0080.00012.92
7.3.310.0050.00216.27
7.3.300.0030.00316.20
7.3.290.0060.00916.18
7.3.280.0100.00716.21
7.3.270.0180.00017.40
7.3.260.0090.01216.46
7.3.250.0100.00916.24
7.3.240.0170.00116.47
7.3.230.0170.00316.30
7.3.210.0090.00616.11
7.3.200.0120.00316.21
7.3.190.0090.00916.10
7.3.180.0070.01116.20
7.3.170.0120.00416.26
7.3.160.0000.01516.22
7.3.10.0050.01116.58
7.3.00.0070.00616.55
7.2.330.0070.01116.22
7.2.320.0170.00716.50
7.2.310.0060.01016.49
7.2.300.0140.00716.22
7.2.290.0070.00916.25
7.2.130.0070.00716.48
7.2.120.0080.00616.72
7.2.110.0060.00616.70
7.2.100.0100.00516.57
7.2.90.0060.01016.67
7.2.80.0080.00716.78
7.2.70.0330.00816.32
7.2.60.0020.01216.85
7.2.50.0040.00816.80
7.2.40.0100.00416.66
7.2.30.0470.00916.02
7.2.20.0050.00816.73
7.2.10.0080.00416.68
7.2.00.0050.00816.72
7.1.250.0070.00515.63
7.1.210.1990.00314.09
7.1.200.0070.00715.96
7.1.190.0040.00815.77
7.1.180.0000.01115.74
7.1.170.0100.00315.52
7.1.160.0110.00015.68
7.1.150.0000.01315.71
7.1.140.0000.01015.76
7.1.130.0050.00515.68
7.1.120.1670.00314.09
7.1.110.0120.00015.91
7.1.100.0040.00715.72
7.1.90.0050.00515.85
7.1.80.0110.00015.78
7.1.70.0030.00815.91
7.1.60.0230.01333.68
7.1.50.0270.00633.65
7.1.40.0320.00933.72
7.1.30.0170.02533.81
7.1.20.0260.00933.48
7.1.10.0410.01015.72
7.1.00.0130.00415.71
7.0.310.0030.01015.50
7.0.300.0550.00713.45
7.0.290.0060.00515.27
7.0.280.1010.00315.33
7.0.270.0070.00315.48
7.0.260.0030.01115.46
7.0.250.0100.00015.11
7.0.240.0050.00515.32
7.0.230.0110.00015.11
7.0.220.0080.00315.01
7.0.210.0000.01015.43
7.0.200.0140.00015.39
7.0.190.0030.01315.24
7.0.180.0060.01015.33
7.0.170.0100.00515.32
7.0.160.0060.00615.36
7.0.150.0120.00415.45
7.0.140.0100.00715.31
7.0.130.3250.01015.30
7.0.120.0070.00715.48
7.0.110.0040.01115.30
7.0.100.0100.00515.42
7.0.90.0160.00015.11
7.0.80.0080.00715.01
7.0.70.0060.01015.29
7.0.60.0140.00215.26
7.0.50.0010.00114.98
7.0.40.0080.00515.18
7.0.30.0080.00815.39
7.0.20.0140.00315.38
7.0.10.0150.00015.16
7.0.00.0180.01515.33

preferences:
55.96 ms | 401 KiB | 5 Q