3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array( 'foo' => null, 'bar' => '', 'baz' => FALSE, ); echo 'foo: ' . (string) empty($array['foo']); echo "\n"; echo 'bar: ' . (string) empty($array['bar']); echo "\n"; echo 'baz: ' . (string) empty($array['baz']); echo "\n"; echo 'fizz: ' . (string) empty($array['fizz']);

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)
8.3.40.0070.00718.67
8.3.30.0110.00418.99
8.3.20.0040.00420.21
8.3.10.0040.00423.65
8.3.00.0080.00019.06
8.2.170.0060.00922.96
8.2.160.0130.00320.39
8.2.150.0070.00024.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0080.00019.05
8.2.110.0090.00022.32
8.2.100.0040.00819.49
8.2.90.0080.00019.17
8.2.80.0040.00417.97
8.2.70.0000.01117.50
8.2.60.0000.00718.16
8.2.50.0000.00818.07
8.2.40.0040.00419.88
8.2.30.0000.00718.30
8.2.20.0040.00417.68
8.2.10.0040.00418.05
8.2.00.0040.00417.69
8.1.270.0040.00424.05
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0080.00023.90
8.1.230.0040.00819.15
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0000.00917.23
8.1.180.0050.00318.10
8.1.170.0060.00618.51
8.1.160.0040.00421.92
8.1.150.0040.00418.50
8.1.140.0000.00917.39
8.1.130.0000.00717.83
8.1.120.0040.00417.44
8.1.110.0000.00717.30
8.1.100.0070.00017.36
8.1.90.0000.00817.52
8.1.80.0030.00517.42
8.1.70.0070.00017.37
8.1.60.0030.00617.61
8.1.50.0080.00017.55
8.1.40.0000.00817.57
8.1.30.0080.00017.62
8.1.20.0040.00417.70
8.1.10.0070.00017.54
8.1.00.0030.00617.53
8.0.300.0070.00018.77
8.0.290.0040.00417.04
8.0.280.0000.00718.46
8.0.270.0040.00417.27
8.0.260.0000.00617.20
8.0.250.0030.00316.94
8.0.240.0030.00716.96
8.0.230.0000.00716.96
8.0.220.0000.00716.94
8.0.210.0000.00716.90
8.0.200.0000.00616.93
8.0.190.0030.00516.96
8.0.180.0000.00716.91
8.0.170.0050.00316.93
8.0.160.0030.00316.86
8.0.150.0050.00316.74
8.0.140.0060.00316.88
8.0.130.0050.00013.29
8.0.120.0000.00816.79
8.0.110.0070.00016.81
8.0.100.0040.00416.64
8.0.90.0050.00216.79
8.0.80.0120.00316.90
8.0.70.0040.00416.88
8.0.60.0030.00516.79
8.0.50.0000.00716.61
8.0.30.0130.00817.02
8.0.20.0110.00817.40
8.0.10.0000.00716.98
8.0.00.0080.01016.88
7.4.330.0050.00015.00
7.4.320.0000.00616.40
7.4.300.0060.00016.50
7.4.290.0070.00016.50
7.4.280.0030.00316.55
7.4.270.0030.00316.60
7.4.260.0000.00716.47
7.4.250.0080.00016.47
7.4.240.0010.00616.54
7.4.230.0000.00716.68
7.4.220.0110.00716.64
7.4.210.0060.00816.52
7.4.200.0000.00816.69
7.4.190.0060.00316.67
7.4.160.0060.01016.50
7.4.150.0140.00317.40
7.4.140.0080.01117.86
7.4.130.0130.00516.58
7.4.120.0140.00416.63
7.4.110.0100.01016.46
7.4.100.0130.01016.39
7.4.90.0130.00416.57
7.4.80.0080.01119.39
7.4.70.0120.00316.67
7.4.60.0120.00616.69
7.4.50.0030.00516.57
7.4.40.0140.00316.54
7.4.30.0110.01116.57
7.4.00.0030.00914.97
7.3.330.0070.00013.20
7.3.320.0000.00612.98
7.3.310.0070.00016.13
7.3.300.0020.00516.27
7.3.290.0090.00616.21
7.3.280.0080.00816.26
7.3.270.0070.01017.40
7.3.260.0090.00916.47
7.3.250.0090.00816.36
7.3.240.0070.01016.50
7.3.230.0070.01016.39
7.3.210.0100.00716.21
7.3.200.0070.01019.39
7.3.190.0150.00416.32
7.3.180.0060.00916.30
7.3.170.0130.00316.34
7.3.160.0130.00616.22
7.3.120.0000.01414.70
7.2.330.0100.00716.54
7.2.320.0070.01416.61
7.2.310.0130.01016.65
7.2.300.0190.00316.44
7.2.290.0140.00316.61
7.2.60.0000.01316.65
7.2.00.0150.00619.43
7.1.200.0000.01315.83
7.1.100.0060.00617.96
7.1.70.0030.00617.17
7.1.60.0130.01319.46
7.1.50.0170.00716.67
7.1.00.0030.07322.57
7.0.200.0030.00716.67
7.0.140.0070.07021.92
7.0.60.0100.03319.89
7.0.50.0130.06017.91
7.0.40.0070.06019.96
7.0.30.0330.08020.31
7.0.20.0200.03720.09
7.0.10.0030.04320.09
7.0.00.0030.04319.99
5.6.280.0030.07321.11
5.6.210.0100.03320.66
5.6.200.0070.04018.21
5.6.190.0270.06720.67
5.6.180.0030.08720.33
5.6.170.0270.03720.45
5.6.160.0000.09020.44
5.6.150.0070.07718.13
5.6.140.0100.04718.18
5.6.130.0030.05018.09
5.6.120.0030.06020.99
5.6.110.0070.07021.07
5.6.100.0030.06321.13
5.6.90.0130.03721.11
5.6.80.0030.05020.40
5.5.350.0030.07720.43
5.5.340.0070.05017.89
5.5.330.0000.04320.23
5.5.320.0430.06320.27
5.5.310.0370.05020.24
5.5.300.0130.07317.91
5.5.290.0000.05717.90
5.5.280.0100.05320.82
5.5.270.0070.05720.64
5.5.260.0100.07320.76
5.5.250.0100.03320.77
5.5.240.0030.05320.25
5.4.450.0800.05019.41
5.4.440.0770.05719.58
5.4.430.0170.05319.61
5.4.420.0330.06019.41
5.4.410.0130.07019.48
5.4.400.0200.04719.09
5.4.390.0130.06319.11
5.4.380.0100.05718.62
5.4.370.0100.05718.74
5.4.360.0130.05318.66
5.4.350.0030.06318.65
5.4.340.0230.04318.65
5.4.320.0050.03812.45
5.4.310.0100.03412.45
5.4.300.0110.03412.46
5.4.290.0080.03912.45
5.4.280.0040.03712.35
5.4.270.0070.03712.35
5.4.260.0120.04112.35
5.4.250.0070.03612.35
5.4.240.0040.03812.35
5.4.230.0070.03812.34
5.4.220.0090.03412.34
5.4.210.0070.03512.34
5.4.200.0060.03812.34
5.4.190.0050.03812.34
5.4.180.0070.03612.34
5.4.170.0100.04012.35
5.4.160.0050.03912.34
5.4.150.0080.04212.34
5.4.140.0040.04212.02
5.4.130.0070.03912.01
5.4.120.0070.04311.97
5.4.110.0090.04411.97
5.4.100.0060.04511.97
5.4.90.0080.04111.96
5.4.80.0060.04311.97
5.4.70.0100.03611.96
5.4.60.0100.03511.96
5.4.50.0130.04611.96
5.4.40.0110.04211.95
5.4.30.0090.04911.95
5.4.20.0120.07311.95
5.4.10.0100.03611.95
5.4.00.0090.03611.44
5.3.290.0050.04012.80
5.3.280.0040.04212.71
5.3.270.0080.03912.72
5.3.260.0070.04012.72
5.3.250.0080.04012.71
5.3.240.0070.04112.72
5.3.230.0060.04112.71
5.3.220.0100.04412.68
5.3.210.0070.06712.68
5.3.200.0050.04412.68
5.3.190.0150.07812.68
5.3.180.0120.04112.67
5.3.170.0080.03912.66
5.3.160.0100.03512.67
5.3.150.0060.03712.68
5.3.140.0070.03612.66
5.3.130.0120.04112.66
5.3.120.0050.04012.66
5.3.110.0030.04212.66
5.3.100.0090.04212.12
5.3.90.0060.04112.09
5.3.80.0100.04412.08
5.3.70.0120.03712.08
5.3.60.0080.04012.07
5.3.50.0070.03812.00
5.3.40.0040.04312.00
5.3.30.0090.03511.95
5.3.20.0060.03611.72
5.3.10.0050.03711.69
5.3.00.0050.03711.68
5.2.170.0070.0309.18
5.2.160.0070.0279.18
5.2.150.0060.0319.18
5.2.140.0050.0429.18
5.2.130.0040.0429.13
5.2.120.0050.0339.14
5.2.110.0030.0349.14
5.2.100.0080.0399.14
5.2.90.0100.0369.14
5.2.80.0070.0309.13
5.2.70.0080.0429.13
5.2.60.0040.0319.09
5.2.50.0050.0299.05
5.2.40.0060.0279.03
5.2.30.0060.0289.01
5.2.20.0060.0279.00
5.2.10.0040.0298.92
5.2.00.0060.0278.78
5.1.60.0070.0228.06
5.1.50.0020.0278.06
5.1.40.0020.0438.04
5.1.30.0050.0278.39
5.1.20.0030.0298.41
5.1.10.0040.0288.14
5.1.00.0060.0238.14
5.0.50.0030.0206.61
5.0.40.0020.0216.47
5.0.30.0000.0346.29
5.0.20.0070.0166.26
5.0.10.0030.0206.24
5.0.00.0030.0306.22
4.4.90.0020.0164.78
4.4.80.0060.0124.75
4.4.70.0020.0164.76
4.4.60.0050.0144.75
4.4.50.0020.0174.77
4.4.40.0030.0354.71
4.4.30.0020.0234.76
4.4.20.0050.0134.84
4.4.10.0010.0174.85
4.4.00.0020.0254.76
4.3.110.0040.0144.66
4.3.100.0030.0144.66
4.3.90.0030.0134.63
4.3.80.0010.0264.58
4.3.70.0030.0224.63
4.3.60.0010.0234.63
4.3.50.0030.0234.62
4.3.40.0020.0304.54
4.3.30.0010.0173.28
4.3.20.0010.0183.26
4.3.10.0020.0163.21
4.3.00.0130.0137.27

preferences:
44.69 ms | 400 KiB | 5 Q