3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ' '; var_dump(empty($a)); var_dump($a == 0);

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)
8.3.40.0040.01118.71
8.3.30.0140.00019.00
8.3.20.0040.00420.18
8.3.10.0070.00023.66
8.3.00.0050.00318.96
8.2.170.0140.00722.96
8.2.160.0070.00720.21
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0050.00226.16
8.2.120.0050.00320.89
8.2.110.0060.00320.57
8.2.100.0060.00617.78
8.2.90.0000.00819.17
8.2.80.0080.00017.97
8.2.70.0050.00317.48
8.2.60.0070.00417.93
8.2.50.0050.00318.07
8.2.40.0000.00819.72
8.2.30.0030.00318.24
8.2.20.0000.00717.68
8.2.10.0040.00417.99
8.2.00.0040.00417.65
8.1.270.0000.00824.02
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0040.00423.92
8.1.230.0060.00617.42
8.1.220.0050.00317.78
8.1.210.0070.00318.77
8.1.200.0090.00017.35
8.1.190.0050.00317.22
8.1.180.0060.00318.10
8.1.170.0030.00618.58
8.1.160.0070.00022.00
8.1.150.0000.00718.59
8.1.140.0040.00417.39
8.1.130.0070.00017.80
8.1.120.0050.00217.36
8.1.110.0050.00217.39
8.1.100.0040.00417.45
8.1.90.0040.00417.45
8.1.80.0040.00417.48
8.1.70.0080.00017.32
8.1.60.0050.00317.45
8.1.50.0030.00517.51
8.1.40.0080.00017.54
8.1.30.0060.00317.60
8.1.20.0040.00417.60
8.1.10.0040.00417.34
8.1.00.0050.00217.38
8.0.300.0060.00318.77
8.0.290.0040.00416.75
8.0.280.0000.00718.34
8.0.270.0000.00717.17
8.0.260.0050.00217.25
8.0.250.0000.00716.91
8.0.240.0030.00316.82
8.0.230.0040.00416.90
8.0.220.0040.00416.87
8.0.210.0070.00016.94
8.0.200.0000.00616.80
8.0.190.0000.00816.95
8.0.180.0000.01116.84
8.0.170.0040.00416.90
8.0.160.0000.00816.95
8.0.150.0000.00816.93
8.0.140.0040.00316.88
8.0.130.0060.00013.25
8.0.120.0080.00016.90
8.0.110.0070.00016.85
8.0.100.0040.00416.88
8.0.90.0040.00416.82
8.0.80.0100.01116.84
8.0.70.0040.00416.88
8.0.60.0040.00416.77
8.0.50.0000.00716.71
8.0.30.0090.01116.97
8.0.20.0090.00917.40
8.0.10.0040.00417.01
8.0.00.0110.00716.84
7.4.330.0000.00615.10
7.4.320.0030.00316.57
7.4.300.0030.00316.64
7.4.290.0030.00316.48
7.4.280.0040.00416.50
7.4.270.0000.00716.50
7.4.260.0080.00016.47
7.4.250.0040.00416.55
7.4.240.0020.00516.50
7.4.230.0070.00016.43
7.4.220.0110.00616.53
7.4.210.0040.01116.51
7.4.200.0000.00716.59
7.4.190.0000.00716.43
7.4.160.0070.01316.58
7.4.150.0070.01017.40
7.4.140.0060.01117.86
7.4.130.0090.00816.46
7.4.120.0110.00516.44
7.4.110.0150.00816.33
7.4.100.0120.00616.48
7.4.90.0090.00916.44
7.4.80.0120.00619.39
7.4.70.0070.01616.54
7.4.60.0000.01716.35
7.4.50.0020.00216.46
7.4.40.0040.01216.45
7.4.30.0120.00316.34
7.4.00.0040.00815.12
7.3.330.0000.00613.03
7.3.320.0050.00012.92
7.3.310.0030.00316.31
7.3.300.0070.00016.22
7.3.290.0040.01116.21
7.3.280.0110.00516.27
7.3.270.0110.00617.40
7.3.260.0130.00416.33
7.3.250.0130.00616.16
7.3.240.0080.00816.46
7.3.230.0090.00916.39
7.3.210.0080.00816.40
7.3.200.0120.00619.39
7.3.190.0110.01116.46
7.3.180.0070.01016.32
7.3.170.0220.00016.27
7.3.160.0120.00316.21
7.3.120.0070.00714.77
7.2.330.0080.00816.36
7.2.320.0060.01316.59
7.2.310.0110.01116.70
7.2.300.0060.00916.55
7.2.290.0100.00716.26
7.2.60.0100.00616.91
7.1.200.0030.00915.84
7.1.70.0100.00017.06
7.1.60.0210.01119.46
7.1.50.0070.01716.84
7.1.00.0070.07322.54
7.0.200.0000.00816.40
7.0.140.0070.07022.01
7.0.60.0130.07019.80
7.0.50.0070.04017.66
7.0.40.0070.08320.40
7.0.30.0300.05020.11
7.0.20.0300.06320.05
7.0.10.0100.08320.13
7.0.00.0000.04320.18
5.6.280.0030.07320.95
5.6.210.0130.07020.71
5.6.200.0030.04318.16
5.6.190.0030.08720.35
5.6.180.0200.05020.67
5.6.170.0100.04720.54
5.6.160.0100.08320.54
5.6.150.0100.06718.21
5.6.140.0200.07018.22
5.6.130.0030.04018.21
5.6.120.0030.04021.04
5.6.110.0200.06721.02
5.6.100.0070.06021.10
5.6.90.0030.10020.94
5.6.80.0070.06320.40
5.5.350.4370.03020.39
5.5.340.0100.08017.91
5.5.330.0030.08020.12
5.5.320.0330.07320.20
5.5.310.0170.05020.43
5.5.300.0100.06318.00
5.5.290.0000.08317.95
5.5.280.0070.08320.84
5.5.270.0070.05320.72
5.5.260.0130.08020.86
5.5.250.0000.09320.69
5.5.240.0100.03720.27
5.4.450.0600.06019.28
5.4.440.0700.05319.46
5.4.430.1100.06019.49
5.4.420.1130.04319.53
5.4.410.0200.04719.38
5.4.400.0600.05719.22
5.4.390.1130.05719.29
5.4.380.0030.06718.58
5.4.370.0100.05318.62
5.4.360.0100.05318.65
5.4.350.0100.05318.61
5.4.340.0070.05718.59
5.4.320.0050.03612.45
5.4.310.0100.03412.45
5.4.300.0040.03912.45
5.4.290.0040.05012.45
5.4.280.0070.03912.35
5.4.270.0080.04312.34
5.4.260.0130.06612.34
5.4.250.0070.04712.35
5.4.240.0120.03612.35
5.4.230.0050.04912.34
5.4.220.0060.04012.34
5.4.210.0180.10112.34
5.4.200.0070.04212.34
5.4.190.0070.04712.34
5.4.180.0070.04512.33
5.4.170.0070.03712.35
5.4.160.0120.04312.34
5.4.150.0060.04512.34
5.4.140.0150.06412.02
5.4.130.0110.05512.01
5.4.120.0110.04811.97
5.4.110.0040.05411.96
5.4.100.0080.04711.96
5.4.90.0120.07111.96
5.4.80.0060.05511.97
5.4.70.0050.04011.96
5.4.60.0060.04011.96
5.4.50.0080.05111.96
5.4.40.0060.05111.95
5.4.30.0080.03611.95
5.4.20.0070.03711.95
5.4.10.0060.03811.95
5.4.00.0080.03511.43
5.3.290.0060.03912.80
5.3.280.0060.04012.71
5.3.270.0170.04812.72
5.3.260.0140.08012.72
5.3.250.0110.05512.72
5.3.240.0060.05512.71
5.3.230.0120.04712.71
5.3.220.0100.06212.68
5.3.210.0120.07812.68
5.3.200.0110.07412.68
5.3.190.0090.08112.68
5.3.180.0160.08912.67
5.3.170.0060.05312.67
5.3.160.0070.03912.67
5.3.150.0120.04812.68
5.3.140.0090.03912.66
5.3.130.0200.08212.66
5.3.120.0100.04212.66
5.3.110.0060.04312.66
5.3.100.0080.03812.11
5.3.90.0050.04112.08
5.3.80.0060.04312.07
5.3.70.0070.03512.07
5.3.60.0170.09312.06
5.3.50.0130.07712.00
5.3.40.0130.08212.00
5.3.30.0080.05011.94
5.3.20.0100.04511.72
5.3.10.0070.05311.69
5.3.00.0090.05011.68
5.2.170.0050.0349.18
5.2.160.0070.0439.18
5.2.150.0050.0439.18
5.2.140.0030.0469.18
5.2.130.0070.0409.14
5.2.120.0040.0329.14
5.2.110.0050.0399.14
5.2.100.0050.0289.14
5.2.90.0070.0319.13
5.2.80.0060.0389.13
5.2.70.0060.0299.13
5.2.60.0070.0419.09
5.2.50.0060.0429.05
5.2.40.0050.0369.03
5.2.30.0040.0309.01
5.2.20.0060.0399.00
5.2.10.0030.0418.91
5.2.00.0050.0418.77
5.1.60.0060.0308.06
5.1.50.0030.0508.06
5.1.40.0030.0368.04
5.1.30.0070.0418.39
5.1.20.0050.0428.41
5.1.10.0070.0338.14
5.1.00.0050.0368.13
5.0.50.0020.0286.61
5.0.40.0040.0246.47
5.0.30.0030.0326.29
5.0.20.0030.0206.25
5.0.10.0030.0266.23
5.0.00.0040.0356.23
4.4.90.0020.0244.78
4.4.80.0030.0174.76
4.4.70.0060.0154.75
4.4.60.0040.0224.76
4.4.50.0030.0154.77
4.4.40.0040.0284.70
4.4.30.0010.0244.76
4.4.20.0030.0214.84
4.4.10.0010.0174.85
4.4.00.0030.0264.76
4.3.110.0020.0164.67
4.3.100.0030.0154.67
4.3.90.0030.0154.63
4.3.80.0020.0254.58
4.3.70.0020.0154.63
4.3.60.0020.0154.63
4.3.50.0010.0174.62
4.3.40.0030.0234.54
4.3.30.0020.0153.29
4.3.20.0020.0153.27
4.3.10.0030.0143.22
4.3.00.0030.0207.02

preferences:
50.37 ms | 400 KiB | 5 Q