3v4l.org

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

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)
8.3.60.0140.00716.75
8.3.50.0070.01122.12
8.3.40.0030.01018.71
8.3.30.0090.00919.14
8.3.20.0070.00020.21
8.3.10.0040.00423.48
8.3.00.0130.00018.76
8.2.180.0120.00318.41
8.2.170.0100.01022.96
8.2.160.0160.00320.39
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0060.00320.72
8.2.110.0030.00619.09
8.2.100.0110.00018.05
8.2.90.0000.00919.17
8.2.80.0040.00417.97
8.2.70.0000.00817.75
8.2.60.0060.00317.93
8.2.50.0040.00418.09
8.2.40.0060.00320.07
8.2.30.0050.00518.29
8.2.20.0050.00217.59
8.2.10.0040.00417.93
8.2.00.0070.00017.49
8.1.280.0070.00725.92
8.1.270.0000.00822.00
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0060.00322.29
8.1.230.0000.01117.77
8.1.220.0030.00617.74
8.1.210.0080.00018.77
8.1.200.0030.00617.22
8.1.190.0050.00317.23
8.1.180.0060.00318.10
8.1.170.0070.00018.58
8.1.160.0040.00421.98
8.1.150.0070.00018.53
8.1.140.0060.00317.38
8.1.130.0030.00317.86
8.1.120.0040.00417.38
8.1.110.0000.00717.27
8.1.100.0000.00817.49
8.1.90.0030.00317.34
8.1.80.0040.00417.43
8.1.70.0000.00717.45
8.1.60.0060.00317.46
8.1.50.0060.00317.45
8.1.40.0030.00517.41
8.1.30.0030.00617.52
8.1.20.0040.00417.63
8.1.10.0000.00717.54
8.1.00.0030.00517.47
8.0.300.0070.00018.77
8.0.290.0040.00416.75
8.0.280.0030.00318.44
8.0.270.0000.00817.24
8.0.260.0030.00317.21
8.0.250.0030.00316.86
8.0.240.0080.00016.90
8.0.230.0000.00716.94
8.0.220.0070.00016.71
8.0.210.0000.00716.70
8.0.200.0000.00616.77
8.0.190.0040.00416.77
8.0.180.0000.00816.86
8.0.170.0000.00916.91
8.0.160.0030.00316.88
8.0.150.0000.00716.66
8.0.140.0000.00716.77
8.0.130.0000.00513.21
8.0.120.0030.00616.76
8.0.110.0040.00416.66
8.0.100.0000.00816.68
8.0.90.0040.00416.88
8.0.80.0000.01616.78
8.0.70.0040.00416.68
8.0.60.0040.00416.77
8.0.50.0040.00416.66
8.0.30.0110.00817.11
8.0.20.0140.00517.40
8.0.10.0040.00417.02
8.0.00.0090.00816.62
7.4.330.0020.00315.00
7.4.320.0070.00016.64
7.4.300.0060.00016.64
7.4.290.0060.00016.52
7.4.280.0040.00416.49
7.4.270.0030.00316.57
7.4.260.0000.00616.43
7.4.250.0000.00716.55
7.4.240.0030.00516.46
7.4.230.0030.00316.66
7.4.220.0070.01116.43
7.4.210.0090.00416.62
7.4.200.0000.00716.63
7.4.190.0030.00516.35
7.4.160.0060.00916.44
7.4.150.0090.00917.40
7.4.140.0100.01417.86
7.4.130.0110.01016.32
7.4.120.0130.00816.54
7.4.110.0120.01016.62
7.4.100.0130.00916.56
7.4.90.0100.00616.36
7.4.80.0070.01419.39
7.4.70.0060.01016.46
7.4.60.0070.01016.64
7.4.50.0030.00316.35
7.4.40.0090.00916.60
7.4.30.0060.01216.38
7.4.00.0030.01314.62
7.3.330.0060.00013.18
7.3.320.0050.00013.06
7.3.310.0040.00416.27
7.3.300.0000.00716.25
7.3.290.0090.00616.31
7.3.280.0070.01116.32
7.3.270.0100.00717.40
7.3.260.0110.01116.21
7.3.250.0080.01616.21
7.3.240.0100.00716.20
7.3.230.0000.01616.39
7.3.210.0030.01316.09
7.3.200.0090.01419.39
7.3.190.0090.00916.50
7.3.180.0030.01316.15
7.3.170.0110.01116.27
7.3.160.0030.01416.14
7.3.120.0100.00614.83
7.2.330.0150.00416.64
7.2.320.0060.01216.60
7.2.310.0100.00916.43
7.2.300.0000.02216.47
7.2.290.0030.02016.30
7.2.00.0030.01318.76
7.1.100.0070.00318.09
7.1.70.0070.00316.81
7.1.60.0070.01719.46
7.1.50.0090.01616.89
7.1.00.0030.07722.43
7.0.200.0030.00316.75
7.0.140.0000.07722.02
7.0.60.0000.04719.90
7.0.50.0030.07017.91
7.0.40.0130.08020.12
7.0.30.0370.07720.04
7.0.20.0200.04320.21
7.0.10.0030.04320.21
7.0.00.0100.05020.16
5.6.210.0070.08320.60
5.6.200.0070.08018.24
5.6.190.0030.09320.60
5.6.180.0100.07020.46
5.6.170.0270.07720.40
5.6.160.0070.08320.61
5.6.150.0170.08018.20
5.6.140.0100.05318.18
5.6.130.0030.08718.09
5.6.120.0030.05021.11
5.6.110.0070.08321.04
5.6.100.0070.06320.97
5.6.90.0000.07321.11
5.6.80.0070.08020.50
5.5.350.0100.05020.33
5.5.340.0130.06018.01
5.5.330.0000.04320.06
5.5.320.0270.08320.21
5.5.310.0330.07720.34
5.5.300.0070.06018.00
5.5.290.0100.07317.98
5.5.280.0070.08320.96
5.5.270.0100.05720.85
5.5.260.0100.08020.78
5.5.250.0070.03720.54
5.5.240.0030.06720.24
5.4.450.0930.05719.61
5.4.440.0230.05019.61
5.4.430.0230.04719.50
5.4.420.0130.05719.64
5.4.410.0300.04319.48
5.4.400.0130.06319.10
5.4.390.0170.06719.15
5.4.380.0170.05018.49
5.4.370.0200.05018.46
5.4.360.0130.05318.54
5.4.350.0170.05718.46
5.4.340.0000.06718.77
5.4.320.0060.03612.45
5.4.310.0070.04712.45
5.4.300.0040.03812.45
5.4.290.0050.04012.45
5.4.280.0100.03912.34
5.4.270.0170.05412.35
5.4.260.0120.06112.34
5.4.250.0080.05412.34
5.4.240.0090.03612.35
5.4.230.0100.05212.34
5.4.220.0080.03812.34
5.4.210.0040.05512.34
5.4.200.0090.06312.34
5.4.190.0150.05212.33
5.4.180.0080.05112.33
5.4.170.0140.08112.35
5.4.160.0090.04812.34
5.4.150.0050.05212.34
5.4.140.0070.05812.02
5.4.130.0060.05012.01
5.4.120.0060.05311.97
5.4.110.0060.05311.96
5.4.100.0100.04611.96
5.4.90.0080.06711.97
5.4.80.0080.03511.96
5.4.70.0080.03511.96
5.4.60.0070.03611.96
5.4.50.0050.03611.96
5.4.40.0070.03811.95
5.4.30.0040.03811.95
5.4.20.0070.04211.95
5.4.10.0070.04211.95
5.4.00.0080.05111.43
5.3.290.0050.04012.80
5.3.280.0080.04012.71
5.3.270.0090.04312.72
5.3.260.0070.04412.72
5.3.250.0080.03912.72
5.3.240.0080.04212.72
5.3.230.0110.03812.71
5.3.220.0060.04012.68
5.3.210.0050.04112.68
5.3.200.0060.03812.68
5.3.190.0070.03712.68
5.3.180.0090.03412.67
5.3.170.0040.03912.67
5.3.160.0100.05112.67
5.3.150.0110.06612.67
5.3.140.0150.07312.66
5.3.130.0090.06412.66
5.3.120.0120.06812.66
5.3.110.0160.07812.66
5.3.100.0100.05012.12
5.3.90.0110.05112.08
5.3.80.0120.05312.07
5.3.70.0130.04712.08
5.3.60.0040.05812.06
5.3.50.0080.05612.00
5.3.40.0050.05912.00
5.3.30.0070.05611.95
5.3.20.0130.05111.72
5.3.10.0140.05211.69
5.3.00.0130.06311.67
5.2.170.0100.0469.18
5.2.160.0060.0529.17
5.2.150.0110.0589.18
5.2.140.0030.0499.17
5.2.130.0090.0529.14
5.2.120.0040.0549.14
5.2.110.0140.0689.14
5.2.100.0080.0359.14
5.2.90.0040.0439.14
5.2.80.0080.0429.13
5.2.70.0050.0449.14
5.2.60.0060.0369.09
5.2.50.0060.0439.06
5.2.40.0080.0379.03
5.2.30.0070.0389.01
5.2.20.0100.0558.99
5.2.10.0090.0488.91
5.2.00.0090.0428.77
5.1.60.0130.0558.06
5.1.50.0110.1038.05
5.1.40.0090.0688.04
5.1.30.0220.0758.39
5.1.20.0090.0588.41
5.1.10.0120.0488.13
5.1.00.0070.0608.13
5.0.50.0130.0486.61
5.0.40.0040.0526.47
5.0.30.0120.0566.29
5.0.20.0100.0526.26
5.0.10.0120.0456.24
5.0.00.0110.0536.23
4.4.90.0040.0164.78
4.4.80.0070.0354.75
4.4.70.0070.0174.75
4.4.60.0020.0184.75
4.4.50.0020.0184.77
4.4.40.0070.0404.71
4.4.30.0050.0434.76
4.4.20.0060.0134.84
4.4.10.0050.0154.85
4.4.00.0060.0274.76
4.3.110.0040.0184.67
4.3.100.0040.0164.67
4.3.90.0030.0164.63
4.3.80.0040.0284.58
4.3.70.0020.0204.63
4.3.60.0070.0434.62
4.3.50.0050.0294.63
4.3.40.0080.0494.54
4.3.30.0060.0273.28
4.3.20.0040.0233.26
4.3.10.0070.0263.21
4.3.00.0100.0207.27

preferences:
46.45 ms | 401 KiB | 5 Q