3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ['foo' => 'bar', 2 => 200]; var_dump(empty($a['foo'])); var_dump(empty($a['asdfasdf'])); var_dump(empty($a[2])); var_dump(empty($a[12]));

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)
8.3.60.0110.01118.18
8.3.50.0100.00922.06
8.3.40.0150.00018.67
8.3.30.0090.00619.05
8.3.20.0070.01120.16
8.3.10.0040.00423.71
8.3.00.0080.01119.25
8.2.180.0090.00616.38
8.2.170.0160.00322.96
8.2.160.0140.00720.13
8.2.150.0090.00024.18
8.2.140.0060.00324.66
8.2.130.0070.01126.16
8.2.120.0000.00821.99
8.2.110.0140.00720.52
8.2.100.0110.00018.09
8.2.90.0060.00319.28
8.2.80.0050.00317.97
8.2.70.0040.00417.63
8.2.60.0040.00418.04
8.2.50.0090.00018.07
8.2.40.0040.00420.01
8.2.30.0000.00718.06
8.2.20.0040.00417.72
8.2.10.0000.00717.93
8.2.00.0090.00017.50
8.1.280.0070.00725.92
8.1.270.0060.00322.10
8.1.260.0110.00726.35
8.1.250.0040.00428.09
8.1.240.0090.00023.77
8.1.230.0000.01118.95
8.1.220.0060.00317.74
8.1.210.0030.00518.77
8.1.200.0030.00617.22
8.1.190.0000.00817.23
8.1.180.0030.00618.10
8.1.170.0080.00018.52
8.1.160.0000.00721.95
8.1.150.0070.00018.74
8.1.140.0040.00417.43
8.1.130.0040.00417.78
8.1.120.0070.00017.34
8.1.110.0000.00817.40
8.1.100.0070.00017.38
8.1.90.0080.00017.38
8.1.80.0060.00317.36
8.1.70.0040.00417.33
8.1.60.0060.00317.50
8.1.50.0000.00817.47
8.1.40.0040.00417.48
8.1.30.0040.00417.59
8.1.20.0030.00517.52
8.1.10.0070.00017.50
8.1.00.0000.00817.34
8.0.300.0000.00718.77
8.0.290.0040.00416.63
8.0.280.0070.00018.39
8.0.270.0040.00417.21
8.0.260.0070.00017.11
8.0.250.0040.00416.92
8.0.240.0040.00416.87
8.0.230.0070.00016.87
8.0.220.0030.00316.74
8.0.210.0000.00716.88
8.0.200.0000.00716.78
8.0.190.0040.00416.93
8.0.180.0000.00716.89
8.0.170.0040.00416.82
8.0.160.0050.00216.80
8.0.150.0000.00816.65
8.0.140.0000.00816.79
8.0.130.0040.00413.29
8.0.120.0050.00216.79
8.0.110.0000.00716.73
8.0.100.0000.00716.84
8.0.90.0040.00416.87
8.0.80.0060.00916.83
8.0.70.0040.00416.80
8.0.60.0000.00716.71
8.0.50.0040.00416.84
8.0.30.0090.01116.87
8.0.20.0090.01417.40
8.0.10.0080.00017.02
8.0.00.0080.01016.77
7.4.330.0000.00515.02
7.4.320.0000.00616.51
7.4.300.0000.00616.53
7.4.290.0030.00316.42
7.4.280.0050.00216.57
7.4.270.0030.00316.34
7.4.260.0030.00516.39
7.4.250.0050.00316.35
7.4.240.0050.00216.49
7.4.230.0000.00716.63
7.4.220.0000.01816.42
7.4.210.0080.00716.31
7.4.200.0030.00316.64
7.4.160.0120.00416.51
7.4.150.0140.01017.40
7.4.140.0110.01117.86
7.4.130.0100.00816.40
7.4.120.0150.00316.39
7.4.110.0110.00816.35
7.4.100.0170.00016.52
7.4.90.0220.00016.43
7.4.80.0150.00619.39
7.4.70.0090.00916.56
7.4.60.0100.00616.32
7.4.50.0030.00316.26
7.4.40.0140.00316.54
7.4.30.0170.00316.52
7.4.00.0040.01114.94
7.3.330.0050.00013.09
7.3.320.0050.00013.11
7.3.310.0040.00416.29
7.3.300.0000.00716.25
7.3.290.0110.00516.28
7.3.280.0130.00516.26
7.3.270.0150.00317.40
7.3.260.0140.00316.24
7.3.250.0070.01116.24
7.3.240.0070.01416.39
7.3.230.0070.01016.44
7.3.210.0100.00716.11
7.3.200.0100.01319.39
7.3.190.0120.00616.05
7.3.180.0100.00716.21
7.3.170.0100.01016.27
7.3.160.0140.00316.20
7.3.10.0060.00616.43
7.3.00.0090.00416.53
7.2.330.0040.01316.57
7.2.320.0140.00416.29
7.2.310.0100.01016.22
7.2.300.0160.00316.23
7.2.290.0130.00316.31
7.2.130.0060.01216.85
7.2.120.0000.01516.43
7.2.110.0030.00916.85
7.2.100.0060.00916.63
7.2.90.0100.00616.47
7.2.80.0050.01016.72
7.2.70.0030.00916.97
7.2.60.0110.00316.82
7.2.50.0070.00716.82
7.2.40.0030.00716.96
7.2.30.0080.00616.96
7.2.20.0030.01316.91
7.2.10.0060.01016.55
7.2.00.0120.01017.90
7.1.250.0060.00315.65
7.1.200.0030.00615.43
7.1.100.0060.00618.11
7.1.70.0100.00617.09
7.1.60.0070.01419.11
7.1.50.0030.01916.51
7.1.00.0000.08022.33
7.0.200.0060.01116.86
7.0.140.0000.07722.08
7.0.60.0170.07319.92
7.0.50.0100.07317.82
7.0.40.0070.04019.91
7.0.30.0230.07720.02
7.0.20.0200.04720.24
7.0.10.0030.06720.09
7.0.00.0100.04720.18
5.6.280.0030.07320.90
5.6.210.0100.05320.74
5.6.200.0100.07718.15
5.6.190.0030.04020.64
5.6.180.0200.08720.57
5.6.170.0230.08020.37
5.6.160.0070.09020.48
5.6.150.0100.07018.09
5.6.140.0100.07018.15
5.6.130.0030.04718.14
5.6.120.0030.04720.86
5.6.110.0070.05020.97
5.6.100.0070.07721.10
5.6.90.0170.06720.87
5.6.80.0000.04020.38
5.5.350.3230.03720.46
5.5.340.0070.06717.95
5.5.330.0030.04720.23
5.5.320.0330.07320.30
5.5.310.0330.06720.29
5.5.300.0000.04317.92
5.5.290.0000.08017.98
5.5.280.0100.04720.77
5.5.270.0130.07320.78
5.5.260.0030.04020.66
5.5.250.0170.07720.49
5.5.240.0200.05720.36
5.4.450.0300.06019.41
5.4.440.0230.04719.41
5.4.430.0170.04319.24
5.4.420.0330.03019.13
5.4.410.0270.04719.36
5.4.400.0270.03319.13
5.4.390.0300.03018.80
5.4.380.0230.06319.09
5.4.370.0230.03719.10
5.4.360.0230.04018.90
5.4.350.0300.07019.09
5.4.340.0300.05319.13
5.4.320.0200.05318.92
5.4.310.0370.06019.08
5.4.300.0300.06719.23
5.4.290.0270.03319.08
5.4.280.0370.07019.04
5.4.270.0300.06019.07
5.4.260.0430.04018.93
5.4.250.0270.07318.90
5.4.240.0330.04319.16
5.4.230.0330.06319.08
5.4.220.0370.03019.23
5.4.210.0370.06019.07
5.4.200.0330.04019.11
5.4.190.0300.07718.79
5.4.180.0370.03719.09
5.4.170.0430.06719.22
5.4.160.0470.06719.11
5.4.150.0230.04718.89
5.4.140.0400.06716.28
5.4.130.0370.05316.42
5.4.120.0330.03316.27
5.4.110.0370.06316.18
5.4.100.0400.04316.50
5.4.90.0370.06016.41
5.4.80.0230.05316.46
5.4.70.0430.06016.41
5.4.60.0430.05716.39
5.4.50.0300.06016.19
5.4.40.0300.05316.45
5.4.30.0300.04016.36
5.4.20.0400.05316.46
5.4.10.0330.06716.20
5.4.00.0300.03715.67
5.3.290.0330.06714.71
5.3.280.0270.06314.42
5.3.270.0370.07014.52
5.3.260.0400.07014.57
5.3.250.0330.04314.59
5.3.240.0430.05014.56
5.3.230.0300.07314.58
5.3.220.0370.06314.50
5.3.210.0400.06314.48
5.3.200.0270.03714.41
5.3.190.0300.05714.43
5.3.180.0270.07314.41
5.3.170.0300.05714.42
5.3.160.0400.06314.47
5.3.150.0300.04714.55
5.3.140.0370.06714.43
5.3.130.0330.07014.41
5.3.120.0300.04314.41
5.3.110.0330.05314.48
5.3.100.0370.05313.88
5.3.90.0370.05314.07
5.3.80.0300.03713.92
5.3.70.0370.04313.92
5.3.60.0430.06314.11
5.3.50.0400.06313.76
5.3.40.0270.04313.77
5.3.30.0370.06013.68
5.3.20.0470.05013.57
5.3.10.0400.04013.60
5.3.00.0300.07713.48
5.2.170.0230.04712.38
5.2.160.0270.04312.38
5.2.150.0400.04712.38
5.2.140.0270.04012.38
5.2.130.0170.03312.38
5.2.120.0300.03712.38
5.2.110.0230.03012.38
5.2.100.0170.03712.38
5.2.90.0270.02312.38
5.2.80.0230.02712.38
5.2.70.0130.03312.38
5.2.60.0230.02312.38
5.2.50.0230.02312.38
5.2.40.0130.03012.38
5.2.30.0200.03012.38
5.2.20.0200.02312.38
5.2.10.0300.02312.38
5.2.00.0330.02012.38
5.1.60.0170.02012.38
5.1.50.0170.02312.38
5.1.40.0130.02312.38
5.1.30.0130.02712.38
5.1.20.0170.02312.38
5.1.10.0170.02312.38
5.1.00.0130.02712.38
5.0.50.0030.02312.38
5.0.40.0130.02012.38
5.0.30.0070.03012.38
5.0.20.0130.01712.38
5.0.10.0070.02312.38
5.0.00.0100.03012.38
4.4.90.0070.01712.38
4.4.80.0070.02012.38
4.4.70.0100.01312.38
4.4.60.0100.01312.38
4.4.50.0070.01712.38
4.4.40.0070.02312.38
4.4.30.0030.01712.38
4.4.20.0070.01712.38
4.4.10.0100.01312.38
4.4.00.0070.02312.38
4.3.110.0070.01712.38
4.3.100.0070.01712.38
4.3.90.0070.01712.38
4.3.80.0070.02312.38
4.3.70.0070.01712.38
4.3.60.0100.01312.38
4.3.50.0070.01312.38
4.3.40.0130.02012.38
4.3.30.0030.01312.38
4.3.20.0070.01312.38
4.3.10.0030.01712.38
4.3.00.0000.01712.38

preferences:
45.93 ms | 401 KiB | 5 Q