3v4l.org

run code in 300+ PHP versions simultaneously
<?php $mystring = null; $arr = get_defined_vars(); echo in_array('mystring',$arr);

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)
8.3.60.0100.01016.50
8.3.50.0130.00722.04
8.3.40.0070.00718.71
8.3.30.0110.00318.82
8.3.20.0040.00420.22
8.3.10.0040.00423.57
8.3.00.0050.00319.25
8.2.180.0000.01418.05
8.2.170.0120.00322.96
8.2.160.0090.00920.00
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0070.00022.13
8.2.110.0100.00020.54
8.2.100.0080.00417.85
8.2.90.0070.00018.22
8.2.80.0000.00817.97
8.2.70.0050.00517.50
8.2.60.0000.00918.04
8.2.50.0050.00518.07
8.2.40.0040.00419.77
8.2.30.0050.00217.93
8.2.20.0000.00817.68
8.2.10.0040.00418.11
8.2.00.0040.00417.54
8.1.280.0100.00725.92
8.1.270.0030.00624.02
8.1.260.0100.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00322.24
8.1.230.0040.00720.96
8.1.220.0040.00417.74
8.1.210.0080.00418.77
8.1.200.0060.00317.23
8.1.190.0050.00317.11
8.1.180.0040.00418.10
8.1.170.0040.00418.20
8.1.160.0060.00321.93
8.1.150.0080.00018.57
8.1.140.0000.00717.36
8.1.130.0070.00017.85
8.1.120.0000.00717.39
8.1.110.0000.00717.38
8.1.100.0040.00417.40
8.1.90.0040.00417.43
8.1.80.0000.00717.26
8.1.70.0070.00017.24
8.1.60.0060.00617.44
8.1.50.0030.00517.46
8.1.40.0000.00817.46
8.1.30.0050.00217.50
8.1.20.0040.00417.60
8.1.10.0000.00717.38
8.1.00.0080.00017.43
8.0.300.0040.00420.15
8.0.290.0070.00017.16
8.0.280.0000.00818.36
8.0.270.0040.00417.24
8.0.260.0030.00317.23
8.0.250.0000.00616.97
8.0.240.0030.00316.84
8.0.230.0000.00716.81
8.0.220.0070.00016.75
8.0.210.0000.00716.68
8.0.200.0030.00316.85
8.0.190.0040.00416.87
8.0.180.0070.00016.88
8.0.170.0000.00816.91
8.0.160.0040.00416.90
8.0.150.0000.00716.79
8.0.140.0040.00416.78
8.0.130.0030.00313.22
8.0.120.0050.00316.82
8.0.110.0000.00816.75
8.0.100.0040.00416.87
8.0.90.0030.00316.85
8.0.80.0070.00716.81
8.0.70.0030.00516.88
8.0.60.0040.00416.65
8.0.50.0030.00316.85
8.0.30.0090.00917.11
8.0.20.0140.00617.40
8.0.10.0000.00716.81
8.0.00.0110.01016.82
7.4.330.0050.00015.04
7.4.320.0030.00316.45
7.4.300.0030.00316.48
7.4.290.0030.00316.43
7.4.280.0030.00516.52
7.4.270.0070.00016.35
7.4.260.0000.00716.45
7.4.250.0050.00316.43
7.4.240.0040.00416.54
7.4.230.0000.00616.45
7.4.220.0100.00716.57
7.4.210.0060.00916.51
7.4.200.0070.00016.32
7.4.190.0020.00516.39
7.4.160.0060.00916.46
7.4.150.0080.00817.40
7.4.140.0140.00617.86
7.4.130.0070.01216.35
7.4.120.0150.00216.46
7.4.110.0060.01816.50
7.4.100.0070.01016.39
7.4.90.0130.00616.57
7.4.80.0100.00719.39
7.4.70.0090.00616.58
7.4.60.0030.01316.30
7.4.50.0050.00316.47
7.4.40.0130.00316.26
7.4.30.0090.00916.35
7.4.00.0140.00414.89
7.3.330.0030.00312.88
7.3.320.0000.00513.04
7.3.310.0040.00416.27
7.3.300.0070.00016.08
7.3.290.0000.01416.10
7.3.280.0090.00616.17
7.3.270.0150.00317.40
7.3.260.0070.01716.24
7.3.250.0150.00416.31
7.3.240.0150.00816.40
7.3.230.0070.01016.39
7.3.210.0120.00616.30
7.3.200.0130.01119.39
7.3.190.0120.01116.23
7.3.180.0160.00616.44
7.3.170.0040.01116.41
7.3.160.0100.00516.30
7.3.120.0070.01014.89
7.3.110.0000.01614.79
7.3.100.0070.00714.90
7.3.90.0000.01214.74
7.3.80.0030.01414.67
7.3.70.0030.01014.35
7.3.60.0070.00314.41
7.3.50.0110.00314.28
7.3.40.0060.01014.66
7.3.30.0000.01414.81
7.3.20.0030.01016.54
7.3.10.0110.00416.64
7.3.00.0000.01616.60
7.2.330.0110.00716.65
7.2.320.0070.01116.38
7.2.310.0100.00716.32
7.2.300.0060.01016.55
7.2.290.0030.01416.39
7.2.250.0060.01314.92
7.2.240.0000.01915.07
7.2.230.0070.01114.77
7.2.220.0080.00815.14
7.2.210.0030.00915.03
7.2.200.0100.00615.05
7.2.190.0030.01014.95
7.2.180.0040.01515.05
7.2.170.0040.00814.95
7.2.00.0080.00419.39
7.1.330.0000.01115.47
7.1.320.0050.00815.84
7.1.310.0050.00515.86
7.1.300.0030.01015.93
7.1.290.0120.00615.90
7.1.280.0080.00415.61
7.1.270.0070.00715.69
7.1.260.0030.01015.55
7.1.100.0030.00918.09
7.1.70.0030.01016.75
7.1.60.0030.01319.46
7.1.50.0060.00916.86
7.1.00.0100.06722.45
7.0.200.0000.00716.85
7.0.140.0000.07721.95
7.0.60.0130.06719.91
7.0.50.0070.07717.83
7.0.40.0070.08720.30
7.0.30.0300.07720.21
7.0.20.0300.06320.18
7.0.10.0100.08020.06
7.0.00.0100.08720.33
5.6.280.0100.08720.81
5.6.210.0000.08020.46
5.6.200.0070.06318.12
5.6.190.0170.07720.77
5.6.180.0130.07020.32
5.6.170.0300.06320.50
5.6.160.0000.05320.46
5.6.150.0070.08018.21
5.6.140.0000.09018.09
5.6.130.0000.04718.08
5.6.120.0130.07720.96
5.6.110.0070.08721.07
5.6.100.0000.04721.10
5.6.90.0230.07020.91
5.6.80.0170.08020.53
5.5.350.2500.03020.44
5.5.340.0100.08018.02
5.5.330.0070.08320.20
5.5.320.0200.04320.32
5.5.310.0270.04720.20
5.5.300.0000.04017.91
5.5.290.0100.05017.91
5.5.280.0130.07720.88
5.5.270.0070.07320.75
5.5.260.0130.07320.66
5.5.250.0030.04020.69
5.5.240.0000.08020.06
5.4.450.0500.06719.61
5.4.440.0670.06319.66
5.4.430.0600.07719.60
5.4.420.0600.07719.44
5.4.410.0500.06319.00
5.4.400.0500.06018.81
5.4.390.0730.05319.14
5.4.380.0170.05718.46
5.4.370.0070.05718.73
5.4.360.0130.05318.73
5.4.350.0200.04318.70
5.4.340.0030.06018.78
5.4.320.0070.05112.45
5.4.310.0050.04012.45
5.4.300.0080.03912.45
5.4.290.0050.03912.45
5.4.280.0110.03112.35
5.4.270.0080.03512.35
5.4.260.0070.03712.35
5.4.250.0080.03612.34
5.4.240.0030.04112.34
5.4.230.0060.03612.34
5.4.220.0030.03812.34
5.4.210.0060.03712.34
5.4.200.0070.03612.34
5.4.190.0040.03712.33
5.4.180.0040.03712.33
5.4.170.0050.03612.34
5.4.160.0080.03412.34
5.4.150.0060.03612.34
5.4.140.0100.03812.02
5.4.130.0050.03612.01
5.4.120.0050.03711.96
5.4.110.0070.05311.97
5.4.100.0080.04611.96
5.4.90.0070.05411.96
5.4.80.0070.04011.96
5.4.70.0080.04811.96
5.4.60.0070.03811.96
5.4.50.0080.03611.96
5.4.40.0090.03611.95
5.4.30.0140.06911.95
5.4.20.0040.05111.94
5.4.10.0100.04711.95
5.4.00.0030.03911.43
5.3.290.0060.04312.80
5.3.280.0110.03312.71
5.3.270.0080.03912.73
5.3.260.0070.03912.72
5.3.250.0080.03812.72
5.3.240.0070.05012.71
5.3.230.0080.04512.71
5.3.220.0050.04712.68
5.3.210.0220.07612.68
5.3.200.0090.04912.68
5.3.190.0120.06612.68
5.3.180.0050.05712.67
5.3.170.0070.04212.67
5.3.160.0080.03912.67
5.3.150.0100.03912.68
5.3.140.0060.05212.66
5.3.130.0100.05312.65
5.3.120.0060.05612.66
5.3.110.0050.04712.66
5.3.100.0100.04412.12
5.3.90.0070.05712.08
5.3.80.0130.06912.07
5.3.70.0130.07412.07
5.3.60.0100.05512.06
5.3.50.0100.06712.00
5.3.40.0060.05312.00
5.3.30.0140.04711.94
5.3.20.0070.03711.72
5.3.10.0080.03511.69
5.3.00.0090.04811.67
5.2.170.0080.0359.18
5.2.160.0100.0359.17
5.2.150.0060.0419.18
5.2.140.0070.0399.17
5.2.130.0090.0379.13
5.2.120.0050.0429.13
5.2.110.0050.0439.14
5.2.100.0070.0399.14
5.2.90.0040.0599.14
5.2.80.0160.0549.14
5.2.70.0090.0429.13
5.2.60.0030.0359.08
5.2.50.0040.0459.05
5.2.40.0250.0759.03
5.2.30.0120.0559.01
5.2.20.0080.0289.00
5.2.10.0000.0358.92
5.2.00.0070.0298.78
5.1.60.0050.0248.06
5.1.50.0030.0278.06
5.1.40.0100.0258.04
5.1.30.0040.0278.39
5.1.20.0040.0278.41
5.1.10.0050.0268.14
5.1.00.0060.0278.13
5.0.50.0060.0256.62
5.0.40.0050.0286.47
5.0.30.0030.0376.29
5.0.20.0070.0256.26
5.0.10.0040.0226.23
5.0.00.0120.0516.23
4.4.90.0050.0234.78
4.4.80.0070.0194.75
4.4.70.0020.0214.76
4.4.60.0030.0194.76
4.4.50.0060.0184.77
4.4.40.0020.0264.71
4.4.30.0030.0164.76
4.4.20.0020.0164.84
4.4.10.0050.0164.85
4.4.00.0030.0274.76
4.3.110.0020.0184.66
4.3.100.0040.0144.66
4.3.90.0010.0164.64
4.3.80.0040.0254.58
4.3.70.0020.0154.63
4.3.60.0030.0174.63
4.3.50.0050.0214.63
4.3.40.0010.0294.53
4.3.30.0030.0163.29
4.3.20.0040.0173.27
4.3.10.0030.0173.22
4.3.00.0000.0239.43

preferences:
52.61 ms | 404 KiB | 6 Q