3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "3hello"; $b = "2"; $c = "hello"; echo $a - $b; echo "\n"; echo $b - $a; echo "\n";echo "\n"; echo $c - $b; echo "\n"; echo $b - $c;

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)
8.3.60.0030.01216.59
8.3.50.0110.00622.72
8.3.40.0100.00320.63
8.3.30.0140.00719.13
8.3.20.0020.00520.04
8.3.10.0090.00023.66
8.3.00.0040.00417.50
8.2.180.0090.00918.54
8.2.170.0070.00722.96
8.2.160.0070.00720.34
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0000.00726.16
8.2.120.0000.00721.07
8.2.110.0140.00420.52
8.2.100.0140.00017.66
8.2.90.0040.00419.17
8.2.80.0040.00417.97
8.2.70.0040.00417.63
8.2.60.0030.00617.80
8.2.50.0000.01018.07
8.2.40.0050.00318.34
8.2.30.0050.00318.12
8.2.20.0060.00317.71
8.2.10.0000.00917.98
8.2.00.0000.00817.60
8.1.280.0120.00625.92
8.1.270.0040.00423.82
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0050.00523.84
8.1.230.0070.00319.17
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0080.00017.23
8.1.180.0040.00418.10
8.1.170.0030.00618.65
8.1.160.0040.00421.98
8.1.150.0070.00018.70
8.1.140.0040.00417.30
8.1.130.0000.00717.85
8.1.120.0040.00417.38
8.1.110.0040.00417.38
8.1.100.0000.00717.29
8.1.90.0000.00717.39
8.1.80.0000.00717.29
8.1.70.0000.00717.30
8.1.60.0000.00817.48
8.1.50.0050.00217.41
8.1.40.0000.00717.43
8.1.30.0040.00417.54
8.1.20.0090.00017.66
8.1.10.0000.00717.54
8.1.00.0040.00417.36
8.0.300.0000.00718.77
8.0.290.0040.00416.63
8.0.280.0000.00718.42
8.0.270.0000.00717.29
8.0.260.0080.00017.21
8.0.250.0000.00717.00
8.0.240.0040.00417.02
8.0.230.0060.00316.85
8.0.220.0070.00016.88
8.0.210.0050.00316.89
8.0.200.0050.00216.90
8.0.190.0070.00016.96
8.0.180.0050.00216.90
8.0.170.0030.00516.96
8.0.160.0040.00416.76
8.0.150.0040.00416.70
8.0.140.0040.00416.80
8.0.130.0000.00613.34
8.0.120.0000.00716.80
8.0.110.0040.00416.77
8.0.100.0020.00516.87
8.0.90.0000.00716.93
8.0.80.0080.00816.92
8.0.70.0000.00716.78
8.0.60.0000.00816.91
8.0.50.0000.00816.91
8.0.30.0080.01316.99
8.0.20.0150.00517.40
8.0.10.0000.00817.05
8.0.00.0090.00916.78
7.4.330.0020.00215.09
7.4.320.0030.00316.57
7.4.300.0000.00616.54
7.4.290.0000.00716.37
7.4.280.0080.00016.43
7.4.270.0030.00316.35
7.4.260.0000.00716.43
7.4.250.0070.00016.28
7.4.240.0030.00316.52
7.4.230.0030.00316.32
7.4.220.0120.00616.55
7.4.210.0120.00316.44
7.4.200.0050.00216.62
7.4.160.0030.01316.52
7.4.150.0160.00317.40
7.4.140.0100.01017.86
7.4.130.0090.01116.36
7.4.120.0110.00916.43
7.4.110.0160.00616.34
7.4.100.0080.00816.69
7.4.90.0060.01116.37
7.4.80.0130.00619.39
7.4.70.0130.01016.44
7.4.60.0120.00416.49
7.4.50.0000.00716.28
7.4.40.0060.01016.49
7.4.30.0060.01016.42
7.4.00.0060.00914.97
7.3.330.0000.00613.00
7.3.320.0000.00513.14
7.3.310.0060.00016.16
7.3.300.0070.00016.25
7.3.290.0100.00716.20
7.3.280.0070.01116.25
7.3.270.0030.01317.40
7.3.260.0060.01216.70
7.3.250.0110.00616.36
7.3.240.0030.01316.47
7.3.230.0130.01016.39
7.3.210.0070.01516.26
7.3.200.0110.01119.39
7.3.190.0150.00616.31
7.3.180.0090.00616.35
7.3.170.0100.00616.49
7.3.160.0030.01616.31
7.3.10.0180.01016.33
7.3.00.0140.01416.31
7.2.330.0130.00616.60
7.2.320.0120.00916.55
7.2.310.0070.01016.58
7.2.300.0070.01116.68
7.2.290.0100.00616.70
7.2.130.0190.01116.84
7.2.120.0140.01216.71
7.2.110.0160.00916.40
7.2.100.0090.01316.63
7.2.90.0160.00316.38
7.2.80.0070.01416.11
7.2.70.0110.01516.64
7.2.60.0070.01416.63
7.2.50.0230.00616.48
7.2.40.0150.00616.43
7.2.30.0140.00416.02
7.2.20.0040.01816.59
7.2.10.0140.01716.58
7.2.00.0060.01118.09
7.1.250.0120.00614.83
7.1.200.0090.00315.73
7.1.100.0170.00718.02
7.1.70.0000.00716.86
7.1.60.0120.01219.40
7.1.50.0090.01316.60
7.1.00.0000.07722.54
7.0.200.0000.00716.68
7.0.140.0070.07022.21
7.0.60.0100.08319.87
7.0.50.0070.08317.80
7.0.40.0070.08720.23
7.0.30.0270.08020.21
7.0.20.0200.07720.18
7.0.10.0030.05320.16
7.0.00.0030.08720.19
5.6.280.0070.07021.14
5.6.210.0130.07320.67
5.6.200.0000.04318.21
5.6.190.0030.04720.61
5.6.180.0370.06720.45
5.6.170.0270.06320.54
5.6.160.0030.08720.47
5.6.150.0070.08018.22
5.6.140.0100.05018.18
5.6.130.0070.07318.19
5.6.120.0000.04321.13
5.6.110.0070.07321.00
5.6.100.0070.08021.02
5.6.90.0130.07721.12
5.6.80.0130.07720.50
5.5.350.0230.08720.37
5.5.340.0000.04717.88
5.5.330.0000.08320.57
5.5.320.0370.06320.18
5.5.310.0230.06020.26
5.5.300.0070.08017.91
5.5.290.0130.07718.01
5.5.280.0100.07720.96
5.5.270.0030.04320.71
5.5.260.0200.07320.96
5.5.250.0130.08320.67
5.5.240.0000.08020.27
5.4.450.0600.05319.50
5.4.440.0130.06019.66
5.4.430.0170.05719.16
5.4.420.0330.04319.16
5.4.410.0130.06019.30
5.4.400.0200.05019.19
5.4.390.0070.06318.90
5.4.380.0100.05318.61
5.4.370.0070.04318.56
5.4.360.0030.04018.62
5.4.350.0070.06311.97
5.4.340.0060.05111.97
5.4.320.0060.03612.45
5.4.310.0050.04112.45
5.4.300.0070.04612.46
5.4.290.0100.04712.45
5.4.280.0060.05212.35
5.4.270.0050.05012.34
5.4.260.0070.04712.35
5.4.250.0080.04012.34
5.4.240.0060.04012.34
5.4.230.0030.04312.34
5.4.220.0050.04312.34
5.4.210.0050.03712.34
5.4.200.0080.03612.34
5.4.190.0100.03512.34
5.4.180.0070.04112.34
5.4.170.0070.03612.34
5.4.160.0040.03712.34
5.4.150.0070.03612.34
5.4.140.0060.03812.02
5.4.130.0070.03512.01
5.4.120.0040.04011.96
5.4.110.0030.04011.96
5.4.100.0080.03411.96
5.4.90.0080.03711.96
5.4.80.0100.03511.96
5.4.70.0030.03711.96
5.4.60.0080.03311.96
5.4.50.0070.03511.96
5.4.40.0060.03511.95
5.4.30.0050.04011.95
5.4.20.0080.04711.95
5.4.10.0070.04011.95
5.4.00.0070.03911.43
5.3.290.0080.03612.80
5.3.280.0020.04412.71
5.3.270.0040.04012.72
5.3.260.0080.03712.72
5.3.250.0050.03812.72
5.3.240.0040.03912.72
5.3.230.0080.03512.71
5.3.220.0070.03512.68
5.3.210.0090.04112.68
5.3.200.0080.04512.68
5.3.190.0050.03912.68
5.3.180.0060.04012.68
5.3.170.0090.03712.67
5.3.160.0070.04512.67
5.3.150.0050.03812.67
5.3.140.0070.03512.66
5.3.130.0100.03412.65
5.3.120.0070.03712.66
5.3.110.0070.03912.66
5.3.100.0070.03712.12
5.3.90.0030.03912.08
5.3.80.0080.03512.08
5.3.70.0090.03712.07
5.3.60.0080.03912.07
5.3.50.0080.03512.00
5.3.40.0080.03512.00
5.3.30.0060.03711.94
5.3.20.0030.03811.72
5.3.10.0080.04011.69
5.3.00.0090.05011.67
5.2.170.0040.0329.18
5.2.160.0050.0339.18
5.2.150.0060.0369.18
5.2.140.0070.0369.18
5.2.130.0070.0389.14
5.2.120.0060.0379.14
5.2.110.0070.0399.14
5.2.100.0080.0379.14
5.2.90.0050.0309.14
5.2.80.0080.0429.13
5.2.70.0080.0399.14
5.2.60.0060.0429.09
5.2.50.0050.0439.05
5.2.40.0060.0389.04
5.2.30.0080.0389.01
5.2.20.0080.0378.99
5.2.10.0130.0328.93
5.2.00.0070.0328.79
5.1.60.0040.0328.08
5.1.50.0070.0268.07
5.1.40.0040.0338.05
5.1.30.0050.0268.41
5.1.20.0040.0268.43
5.1.10.0050.0308.15
5.1.00.0050.0348.15
5.0.50.0030.0226.63
5.0.40.0030.0206.49
5.0.30.0020.0366.30
5.0.20.0070.0236.30
5.0.10.0040.0306.27
5.0.00.0070.0346.27
4.4.90.0030.0204.78
4.4.80.0050.0184.75
4.4.70.0060.0164.76
4.4.60.0010.0224.75
4.4.50.0050.0184.77
4.4.40.0040.0304.71
4.4.30.0030.0194.76
4.4.20.0040.0194.84
4.4.10.0050.0184.85
4.4.00.0040.0274.76
4.3.110.0010.0184.67
4.3.100.0040.0164.66
4.3.90.0040.0174.64
4.3.80.0030.0234.58
4.3.70.0020.0164.63
4.3.60.0030.0144.62
4.3.50.0060.0164.62
4.3.40.0010.0264.54
4.3.30.0030.0153.32
4.3.20.0030.0153.30
4.3.10.0010.0173.26
4.3.00.0130.0207.16

preferences:
41.33 ms | 401 KiB | 5 Q