3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array( '' => 'foo', 'foo' => '', null, array(), 1, true, false, ); foreach($a as $k => $v) { echo "$k => $v\n"; var_dump(!empty($a[$k])); var_dump(isset($a[$k]) && $a[$k]); }

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)
8.3.60.0140.00718.55
8.3.50.0110.00420.06
8.3.40.0090.00918.79
8.3.30.0110.00319.13
8.3.20.0040.00420.16
8.3.10.0040.00421.90
8.3.00.0040.00419.50
8.2.180.0060.01516.50
8.2.170.0040.01122.96
8.2.160.0030.01020.39
8.2.150.0050.00324.18
8.2.140.0000.00724.66
8.2.130.0080.00026.16
8.2.120.0040.00421.04
8.2.110.0090.00020.39
8.2.100.0040.00817.91
8.2.90.0030.00619.76
8.2.80.0040.00417.97
8.2.70.0000.00917.63
8.2.60.0040.00418.04
8.2.50.0030.00618.07
8.2.40.0080.00018.03
8.2.30.0080.00018.03
8.2.20.0040.00417.85
8.2.10.0040.00418.04
8.2.00.0000.00817.75
8.1.270.0040.00423.84
8.1.260.0070.00026.35
8.1.250.0060.00928.09
8.1.240.0000.00922.67
8.1.230.0090.00320.97
8.1.220.0080.00017.79
8.1.210.0050.00319.01
8.1.200.0030.00617.23
8.1.190.0080.00016.98
8.1.180.0000.00819.01
8.1.170.0000.00918.61
8.1.160.0060.00322.07
8.1.150.0030.00518.73
8.1.140.0000.00717.30
8.1.130.0030.00319.60
8.1.120.0040.00417.48
8.1.110.0060.00317.32
8.1.100.0040.00417.48
8.1.90.0070.00017.43
8.1.80.0000.00817.35
8.1.70.0000.00717.32
8.1.60.0030.00517.46
8.1.50.0040.00417.54
8.1.40.0040.00417.52
8.1.30.0030.00517.69
8.1.20.0040.00417.66
8.1.10.0040.00417.57
8.1.00.0000.00917.37
8.0.300.0070.00020.03
8.0.290.0040.00416.75
8.0.280.0030.00318.44
8.0.270.0000.00717.29
8.0.260.0030.00317.11
8.0.250.0000.00716.93
8.0.240.0000.00717.04
8.0.230.0030.00316.86
8.0.220.0030.00316.85
8.0.210.0040.00416.85
8.0.200.0050.00317.06
8.0.190.0050.00217.04
8.0.180.0000.00816.87
8.0.170.0000.00816.95
8.0.160.0000.00717.06
8.0.150.0030.00316.89
8.0.140.0050.00616.81
8.0.130.0000.00513.38
8.0.120.0040.00416.82
8.0.110.0020.00516.96
8.0.100.0040.00416.99
8.0.90.0000.00716.78
8.0.80.0070.01016.84
8.0.70.0050.00216.95
8.0.60.0000.00716.89
8.0.50.0030.00316.88
8.0.30.0140.01017.20
8.0.20.0120.00617.40
8.0.10.0070.00016.92
8.0.00.0110.00616.68
7.4.330.0050.00015.10
7.4.320.0000.00616.43
7.4.300.0060.00016.60
7.4.290.0030.00316.61
7.4.280.0000.00716.60
7.4.270.0070.00016.50
7.4.260.0000.00716.61
7.4.250.0040.00416.59
7.4.240.0050.00216.53
7.4.230.0030.00316.48
7.4.220.0110.01116.62
7.4.210.0060.00916.47
7.4.200.0000.00716.54
7.4.160.0120.00916.46
7.4.150.0100.00917.40
7.4.140.0090.00917.86
7.4.130.0030.01516.53
7.4.120.0070.01116.60
7.4.110.0140.01116.53
7.4.100.0080.01116.28
7.4.90.0130.00316.61
7.4.80.0070.01019.39
7.4.70.0170.00216.44
7.4.60.0030.01316.29
7.4.50.0000.00416.32
7.4.40.0030.01316.38
7.4.30.0070.01016.34
7.4.00.0120.00314.93
7.3.330.0030.00313.30
7.3.320.0000.00613.33
7.3.310.0030.00316.22
7.3.300.0070.00016.43
7.3.290.0110.00416.45
7.3.280.0110.00516.40
7.3.270.0150.00317.40
7.3.260.0080.01216.48
7.3.250.0070.01416.39
7.3.240.0100.00716.40
7.3.230.0170.00016.50
7.3.210.0090.00916.48
7.3.200.0090.00919.39
7.3.190.0090.00916.38
7.3.180.0130.00316.30
7.3.170.0100.00716.52
7.3.160.0090.00616.43
7.2.330.0120.00616.73
7.2.320.0120.00916.55
7.2.310.0110.01116.59
7.2.300.0100.00616.50
7.2.290.0040.01216.58
7.2.00.0000.01219.25
7.1.100.0000.01317.92
7.1.70.0030.00617.21
7.1.60.0080.00416.98
7.1.50.0060.01816.91
7.1.00.0000.08022.47
7.0.200.0030.01416.93
7.0.140.0000.07722.12
7.0.60.0030.07019.76
7.0.50.0000.04317.82
7.0.40.0230.06319.98
7.0.30.0170.04720.21
7.0.20.0370.06720.17
7.0.10.0030.07720.09
7.0.00.0000.05319.99
5.6.280.0070.07020.92
5.6.210.0300.06720.48
5.6.200.0070.04718.09
5.6.190.0070.08320.33
5.6.180.3770.04020.40
5.6.170.0300.07020.42
5.6.160.0100.08020.51
5.6.150.0070.08018.15
5.6.140.0030.08718.07
5.6.130.0070.07718.20
5.6.120.0030.07321.12
5.6.110.0130.03721.11
5.6.100.0030.04020.97
5.6.90.0030.07020.86
5.6.80.0070.08320.28
5.6.70.0270.06020.37
5.5.350.0000.07720.43
5.5.340.0070.07717.92
5.5.330.0070.08320.25
5.5.320.0200.05720.28
5.5.310.0370.07320.26
5.5.300.0070.07717.91
5.5.290.0030.04017.95
5.5.280.0070.05320.90
5.5.270.0130.07720.64
5.5.260.0030.08320.80
5.5.250.0100.08320.58
5.5.240.0030.07320.33
5.4.450.0830.05319.41
5.4.440.0770.05319.20
5.4.430.0630.05719.64
5.4.420.0930.08719.40
5.4.410.0230.06019.41
5.4.400.0670.04719.22
5.4.390.0630.05319.12
5.4.380.0170.05018.50
5.4.370.0230.04718.67
5.4.360.0200.03318.42
5.4.350.0080.03811.97
5.4.340.0080.03711.97
5.4.320.0060.04612.46
5.4.310.0060.04012.45
5.4.300.0070.03712.46
5.4.290.0070.03812.45
5.4.280.0050.03912.35
5.4.270.0070.03612.35
5.4.260.0090.03712.35
5.4.250.0040.03912.35
5.4.240.0060.03612.35
5.4.230.0070.04312.34
5.4.220.0060.03712.34
5.4.210.0040.03712.34
5.4.200.0060.03812.34
5.4.190.0050.03812.34
5.4.180.0100.03212.34
5.4.170.0080.03412.35
5.4.160.0080.04112.34
5.4.150.0070.04112.34
5.4.140.0060.03612.03
5.4.130.0030.04212.02
5.4.120.0060.03511.97
5.4.110.0040.03711.97
5.4.100.0060.03511.97
5.4.90.0050.03711.97
5.4.80.0090.03411.97
5.4.70.0090.03211.96
5.4.60.0050.04811.96
5.4.50.0040.05411.96
5.4.40.0050.03811.95
5.4.30.0060.03611.95
5.4.20.0020.03811.95
5.4.10.0120.04611.95
5.4.00.0090.04911.44
5.3.290.0090.05512.80
5.3.280.0120.04612.70
5.3.270.0070.04212.72
5.3.260.0090.03612.72
5.3.250.0090.03612.72
5.3.240.0050.03812.71
5.3.230.0040.03912.71
5.3.220.0070.03512.68
5.3.210.0060.03812.68
5.3.200.0070.03412.68
5.3.190.0050.03812.68
5.3.180.0040.03812.68
5.3.170.0100.04912.67
5.3.160.0050.04612.68
5.3.150.0050.03812.67
5.3.140.0050.03812.66
5.3.130.0070.03712.66
5.3.120.0070.03712.66
5.3.110.0050.04012.66
5.3.100.0080.03512.12
5.3.90.0060.03712.09
5.3.80.0050.03912.07
5.3.70.0060.03612.07
5.3.60.0060.03512.07
5.3.50.0070.03612.00
5.3.40.0090.04912.00
5.3.30.0060.05311.94
5.3.20.0110.04511.72
5.3.10.0070.05011.69
5.3.00.0070.03811.68
5.2.170.0070.0399.18
5.2.160.0060.0389.18
5.2.150.0020.0349.18
5.2.140.0090.0279.17
5.2.130.0040.0339.13
5.2.120.0060.0279.13
5.2.110.0050.0359.14
5.2.100.0070.0309.14
5.2.90.0070.0269.14
5.2.80.0090.0289.14
5.2.70.0100.0269.14
5.2.60.0080.0339.09
5.2.50.0040.0309.06
5.2.40.0030.0309.03
5.2.30.0040.0339.01
5.2.20.0100.0329.00
5.2.10.0030.0308.94
5.2.00.0050.0318.79
5.1.60.0040.0248.08
5.1.50.0040.0278.07
5.1.40.0100.0328.06
5.1.30.0040.0268.41
5.1.20.0040.0268.43
5.1.10.0020.0288.16
5.1.00.0050.0248.15
5.0.50.0050.0196.63
5.0.40.0030.0206.49
5.0.30.0020.0336.30
5.0.20.0010.0216.27
5.0.10.0020.0216.25
5.0.00.0020.0316.24
4.4.90.0030.0154.78
4.4.80.0020.0164.75
4.4.70.0040.0154.75
4.4.60.0040.0144.75
4.4.50.0010.0174.77
4.4.40.0050.0234.71
4.4.30.0020.0164.76
4.4.20.0030.0154.84
4.4.10.0030.0164.85
4.4.00.0020.0264.76
4.3.110.0030.0164.67
4.3.100.0030.0154.67
4.3.90.0040.0134.63
4.3.80.0000.0274.59
4.3.70.0010.0164.63
4.3.60.0000.0184.63
4.3.50.0050.0134.63
4.3.40.0040.0234.54
4.3.30.0010.0233.30
4.3.20.0020.0213.27
4.3.10.0030.0213.23
4.3.00.0170.0237.21

preferences:
90.79 ms | 400 KiB | 5 Q