3v4l.org

run code in 300+ PHP versions simultaneously
<?php $heading = 'h2' . 'h3'; echo ++$heading;

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)
8.3.40.0110.00418.58
8.3.30.0120.00319.10
8.3.20.0080.00020.04
8.3.10.0040.00423.50
8.3.00.0060.00319.66
8.2.170.0110.00422.96
8.2.160.0030.01022.16
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0000.01119.35
8.2.110.0030.00622.08
8.2.100.0090.00318.03
8.2.90.0000.00819.09
8.2.80.0060.00317.97
8.2.70.0060.00317.50
8.2.60.0000.00817.93
8.2.50.0080.00018.07
8.2.40.0040.00418.22
8.2.30.0000.00718.19
8.2.20.0050.00317.72
8.2.10.0040.00417.91
8.2.00.0030.00517.61
8.1.270.0030.00523.96
8.1.260.0000.00826.35
8.1.250.0080.00028.09
8.1.240.0090.00021.88
8.1.230.0000.01018.97
8.1.220.0040.00417.74
8.1.210.0000.00918.77
8.1.200.0100.00017.10
8.1.190.0000.00817.22
8.1.180.0000.00818.10
8.1.170.0000.00818.58
8.1.160.0040.00421.95
8.1.150.0000.00718.71
8.1.140.0000.00717.38
8.1.130.0030.00317.74
8.1.120.0030.00717.41
8.1.110.0000.00817.27
8.1.100.0070.00317.40
8.1.90.0040.00417.27
8.1.80.0070.00017.26
8.1.70.0000.01017.31
8.1.60.0030.00617.52
8.1.50.0040.00417.48
8.1.40.0030.00517.41
8.1.30.0040.00417.58
8.1.20.0000.00717.55
8.1.10.0000.00917.50
8.1.00.0030.00917.48
8.0.300.0000.00818.77
8.0.290.0040.00416.63
8.0.280.0070.00018.43
8.0.270.0040.00417.24
8.0.260.0070.00017.19
8.0.250.0060.00316.85
8.0.240.0070.00016.91
8.0.230.0030.00316.84
8.0.220.0050.00316.80
8.0.210.0000.00716.86
8.0.200.0030.00316.94
8.0.190.0040.00416.82
8.0.180.0050.00516.86
8.0.170.0040.00416.82
8.0.160.0070.00016.95
8.0.150.0000.00716.66
8.0.140.0050.00516.78
8.0.130.0000.00613.21
8.0.120.0070.00016.61
8.0.110.0070.00016.64
8.0.100.0000.00716.65
8.0.90.0000.00716.82
8.0.80.0120.01016.74
8.0.70.0000.00816.86
8.0.60.0050.00316.86
8.0.50.0070.00016.82
8.0.30.0080.01317.08
8.0.20.0160.00817.40
8.0.10.0000.00716.90
8.0.00.0110.00716.85
7.4.330.0060.00015.07
7.4.320.0070.00016.32
7.4.300.0030.00316.33
7.4.290.0060.00016.35
7.4.280.0030.00616.53
7.4.270.0000.00716.42
7.4.260.0040.00416.40
7.4.250.0040.00416.50
7.4.240.0070.00216.52
7.4.230.0040.00416.24
7.4.220.0030.01616.57
7.4.210.0110.00316.43
7.4.200.0000.00716.33
7.4.160.0130.00316.39
7.4.150.0080.01117.40
7.4.140.0170.00317.86
7.4.130.0100.00616.52
7.4.120.0080.00816.36
7.4.110.0120.01216.38
7.4.100.0110.00716.33
7.4.90.0140.00316.58
7.4.80.0140.00519.39
7.4.70.0100.00716.30
7.4.60.0100.00616.36
7.4.50.0000.00816.10
7.4.40.0000.01616.42
7.4.30.0070.01016.54
7.4.00.0070.01015.02
7.3.330.0030.00313.10
7.3.320.0000.00513.03
7.3.310.0030.00316.15
7.3.300.0050.00216.17
7.3.290.0040.01116.21
7.3.280.0100.00616.21
7.3.270.0100.00717.40
7.3.260.0150.00616.36
7.3.250.0060.01016.35
7.3.240.0100.00716.43
7.3.230.0140.00316.39
7.3.210.0060.00916.40
7.3.200.0150.00719.39
7.3.190.0060.01316.15
7.3.180.0100.00616.27
7.3.170.0090.00616.27
7.3.160.0030.01316.25
7.3.120.0040.01414.62
7.3.10.0060.00916.75
7.3.00.0030.00516.25
7.2.330.0070.01016.75
7.2.320.0050.01116.63
7.2.310.0000.01716.59
7.2.300.0150.00416.46
7.2.290.0000.01616.53
7.2.130.0070.00716.94
7.2.120.0030.00916.84
7.2.110.0230.00816.58
7.2.100.0080.00916.62
7.2.90.0070.00816.74
7.2.80.0080.00616.52
7.2.70.0200.00416.71
7.2.60.0140.00216.61
7.2.50.0090.00716.76
7.2.40.0070.00716.87
7.2.30.0100.00716.96
7.2.20.0100.00716.79
7.2.10.0270.01016.82
7.2.00.0040.01016.70
7.1.250.0120.00315.27
7.1.230.0070.00715.75
7.1.220.0110.00415.34
7.1.210.2470.00015.50
7.1.200.0090.00315.71
7.1.190.0080.00415.58
7.1.180.0120.00315.66
7.1.170.0040.01215.84
7.1.160.0090.00915.51
7.1.150.0110.00715.55
7.1.140.0040.01215.36
7.1.130.0170.00015.78
7.1.120.0290.00715.82
7.1.110.0080.00815.83
7.1.100.0080.00815.91
7.1.90.0120.00315.78
7.1.80.0110.00415.68
7.1.70.0050.00616.32
7.1.60.0090.01016.56
7.1.50.0140.01125.27
7.1.40.0150.00715.70
7.1.30.0150.00515.74
7.1.20.0660.01015.67
7.1.10.0160.00015.77
7.1.00.0080.03819.08
7.0.310.0080.00415.49
7.0.300.0120.00615.47
7.0.290.0110.00415.10
7.0.280.0550.00315.31
7.0.270.0050.00915.12
7.0.260.0110.00415.27
7.0.250.0100.00514.96
7.0.240.0120.00315.21
7.0.230.0060.00615.32
7.0.220.0110.00415.43
7.0.210.0090.00915.05
7.0.200.0170.00516.05
7.0.190.0160.00015.30
7.0.180.0050.01215.16
7.0.170.0080.00815.36
7.0.160.0080.00815.36
7.0.150.0090.00915.31
7.0.140.0070.02618.71
7.0.130.0110.00515.51
7.0.120.0050.01015.63
7.0.110.0060.00915.48
7.0.100.0580.00015.30
7.0.90.0070.01115.39
7.0.80.0060.00915.34
7.0.70.0040.01515.34
7.0.60.0050.04017.61
7.0.50.0100.02016.63
7.0.40.0100.02916.84
7.0.30.0320.04216.76
7.0.20.0150.04016.73
7.0.10.0150.03816.79
7.0.00.0070.03316.90
5.6.380.0030.01314.50
5.6.370.0130.00313.93
5.6.360.0130.00714.60
5.6.350.0100.00514.08
5.6.340.0000.01514.30
5.6.330.0070.00714.55
5.6.320.0150.00014.00
5.6.310.0120.00414.22
5.6.300.0140.00414.58
5.6.290.0080.00814.14
5.6.280.0010.04217.47
5.6.270.0090.00914.31
5.6.260.0040.00914.20
5.6.250.0100.00314.21
5.6.240.0120.00014.39
5.6.230.0130.00314.32
5.6.220.0100.00814.19
5.6.210.0170.01717.51
5.6.200.0120.04316.34
5.6.190.0080.02417.41
5.6.180.2070.02117.24
5.6.170.0230.04317.29
5.6.160.0130.04517.32
5.6.150.0070.03816.14
5.6.140.0140.03016.12
5.6.130.0090.03516.18
5.6.120.0090.04217.56
5.6.110.0070.05017.53
5.6.100.0030.03517.59
5.6.90.0070.02717.67
5.6.80.0130.03917.16
5.6.70.0110.00314.13
5.6.60.0070.01014.24
5.6.50.0120.00314.15
5.6.40.0160.00013.98
5.6.30.0100.00714.23
5.6.20.0090.01114.03
5.6.10.0090.00614.11
5.6.00.0080.00914.03
5.5.380.0060.00612.79
5.5.370.0090.00312.79
5.5.360.0110.00412.79
5.5.350.0100.04016.55
5.5.340.0100.02615.34
5.5.330.0110.03816.68
5.5.320.0190.04216.53
5.5.310.0170.04116.54
5.5.300.0040.02615.38
5.5.290.0060.02215.40
5.5.280.0070.02316.86
5.5.270.0110.03716.77
5.5.260.0060.04416.81
5.5.250.0030.04616.64
5.5.240.1930.02316.47
5.5.230.0030.00912.79
5.5.220.0080.00812.79
5.5.210.0090.00612.79
5.5.200.0100.00212.79
5.5.190.0100.00312.79
5.5.180.0100.00012.79
5.5.170.0120.00613.96
5.5.160.0130.00012.79
5.5.150.0110.00312.79
5.5.140.0140.00012.79
5.5.130.0090.00612.79
5.5.120.0100.00312.79
5.5.110.0070.00512.79
5.5.100.0120.00012.79
5.5.90.0120.00012.79
5.5.80.0090.00312.79
5.5.70.0070.00312.79
5.5.60.0040.01112.79
5.5.50.0040.01112.79
5.5.40.0080.00412.79
5.5.30.0100.00312.79
5.5.20.0070.00712.79
5.5.10.0040.00812.79
5.5.00.0100.00212.79
5.4.450.0180.01716.13
5.4.440.0330.01816.11
5.4.430.0190.02216.13
5.4.420.0290.02016.10
5.4.410.0240.02115.90
5.4.400.0170.01715.94
5.4.390.0160.02615.97
5.4.380.0050.03315.63
5.4.370.0180.02515.73
5.4.360.0140.02715.69
5.4.350.0100.03015.70
5.4.340.0150.02315.68
5.4.330.0080.00312.79
5.4.320.0080.02412.62
5.4.310.0070.02212.62
5.4.300.0130.03012.62
5.4.290.0110.02412.62
5.4.280.0070.02512.57
5.4.270.0100.02512.57
5.4.260.0080.02212.57
5.4.250.0060.02312.57
5.4.240.0070.02112.57
5.4.230.0080.01912.56
5.4.220.0060.02112.56
5.4.210.0110.02212.56
5.4.200.0100.02412.56
5.4.190.0060.02412.56
5.4.180.0090.02712.56
5.4.170.0080.01912.57
5.4.160.0060.02312.56
5.4.150.0070.02012.56
5.4.140.0100.01912.41
5.4.130.0070.02012.40
5.4.120.0060.01912.38
5.4.110.0040.02212.38
5.4.100.0050.02112.38
5.4.90.0070.02012.38
5.4.80.0060.02212.38
5.4.70.0080.01912.37
5.4.60.0040.02112.38
5.4.50.0080.02712.37
5.4.40.0060.02312.37
5.4.30.0090.01912.37
5.4.20.0070.02012.37
5.4.10.0070.01912.37
5.4.00.0080.02012.11
5.3.290.0120.01912.79
5.3.280.0060.02312.75
5.3.270.0080.02112.76
5.3.260.0120.01712.75
5.3.250.0050.02112.75
5.3.240.0070.02112.76
5.3.230.0080.01912.75
5.3.220.0090.01912.74
5.3.210.0070.02312.73
5.3.200.0060.02212.73
5.3.190.0040.02312.73
5.3.180.0080.02212.73
5.3.170.0110.01912.73
5.3.160.0080.01912.73
5.3.150.0080.01812.73
5.3.140.0070.02112.72
5.3.130.0070.02212.72
5.3.120.0090.02112.72
5.3.110.0060.02312.72
5.3.100.0070.02012.46
5.3.90.0100.01812.44
5.3.80.0060.02212.43
5.3.70.0070.02212.43
5.3.60.0070.02312.43
5.3.50.0040.02412.39
5.3.40.0090.01612.39
5.3.30.0090.01712.37
5.3.20.0070.01812.25
5.3.10.0040.02112.24
5.3.00.0070.02012.23
5.2.170.0100.01410.98
5.2.160.0040.02010.98
5.2.150.0060.01910.98
5.2.140.0080.01610.98
5.2.130.0060.02310.96
5.2.120.0080.01410.96
5.2.110.0070.01710.96
5.2.100.0090.01410.96
5.2.90.0070.01510.97
5.2.80.0080.01410.96
5.2.70.0050.01710.96
5.2.60.0090.01410.94
5.2.50.0060.01610.92
5.2.40.0040.01710.91
5.2.30.0050.01810.90
5.2.20.0060.01610.89
5.2.10.0070.01410.85
5.2.00.0040.01810.78
5.1.60.0070.01210.42
5.1.50.0010.01910.42
5.1.40.0070.01310.41
5.1.30.0020.01610.59
5.1.20.0040.01610.60
5.1.10.0050.01510.46
5.1.00.0040.01510.46
5.0.50.0040.0139.70
5.0.40.0050.0129.63
5.0.30.0070.0159.54
5.0.20.0020.0129.52
5.0.10.0060.0099.51
5.0.00.0030.0179.51
4.4.90.0030.0108.79
4.4.80.0040.0078.77
4.4.70.0040.0088.77
4.4.60.0030.0108.77
4.4.50.0040.0088.78
4.4.40.0030.0158.75
4.4.30.0030.0088.77
4.4.20.0030.0098.82
4.4.10.0060.0078.82
4.4.00.0050.0148.78
4.3.110.0040.0098.73
4.3.100.0020.0108.73
4.3.90.0060.0058.71
4.3.80.0030.0148.69
4.3.70.0030.0098.71
4.3.60.0040.0078.71
4.3.50.0040.0078.71
4.3.40.0050.0128.66
4.3.30.0000.0128.04
4.3.20.0020.0118.03
4.3.10.0030.0088.01
4.3.00.0060.00828.66

preferences:
42.16 ms | 400 KiB | 5 Q