3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(preg_match('//u', "\xE4B880", $matches)); var_dump($matches); var_dump(preg_match('//u', "\xF0A0808B", $matches)); var_dump($matches); var_dump(mb_convert_encoding('𠀋 ', 'UTF-8', 'UTF-8'));

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)
8.3.60.0070.00716.88
8.3.50.0090.01222.97
8.3.40.0120.00919.02
8.3.30.0140.00018.92
8.3.20.0000.00820.34
8.3.10.0040.00423.43
8.3.00.0080.00019.38
8.2.180.0080.00818.29
8.2.170.0110.00422.96
8.2.160.0070.00720.35
8.2.150.0000.00924.18
8.2.140.0040.00424.66
8.2.130.0100.00326.16
8.2.120.0000.00821.07
8.2.110.0060.00319.26
8.2.100.0000.01117.72
8.2.90.0030.00517.85
8.2.80.0030.00518.06
8.2.70.0050.00517.75
8.2.60.0000.00817.91
8.2.50.0080.00018.10
8.2.40.0100.00020.61
8.2.30.0080.00017.88
8.2.20.0040.00417.76
8.2.10.0000.00818.05
8.2.00.0040.00417.65
8.1.280.0110.00725.92
8.1.270.0040.00422.06
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0060.00323.84
8.1.230.0040.00820.96
8.1.220.0000.00817.74
8.1.210.0000.00818.81
8.1.200.0080.00017.23
8.1.190.0080.00017.23
8.1.180.0040.00418.10
8.1.170.0060.00318.77
8.1.160.0040.00422.01
8.1.150.0040.00718.83
8.1.140.0000.01017.52
8.1.130.0030.00317.77
8.1.120.0030.00517.43
8.1.110.0040.00417.54
8.1.100.0050.00217.53
8.1.90.0040.00417.49
8.1.80.0000.00717.54
8.1.70.0030.00317.49
8.1.60.0050.00317.51
8.1.50.0000.00817.56
8.1.40.0000.00717.50
8.1.30.0080.00017.66
8.1.20.0040.00517.61
8.1.10.0060.00317.61
8.1.00.0040.00417.62
8.0.300.0030.00319.91
8.0.290.0000.00716.75
8.0.280.0030.00318.26
8.0.270.0070.00017.18
8.0.260.0000.00617.04
8.0.250.0070.00016.98
8.0.240.0040.00417.13
8.0.230.0000.00717.04
8.0.220.0070.00016.94
8.0.210.0070.00016.90
8.0.200.0030.00317.05
8.0.190.0040.00417.12
8.0.180.0070.00317.01
8.0.170.0080.00016.91
8.0.160.0000.00717.01
8.0.150.0030.00316.87
8.0.140.0000.00716.83
8.0.130.0070.00013.48
8.0.120.0000.00816.94
8.0.110.0000.00717.02
8.0.100.0050.00216.91
8.0.90.0000.00717.02
8.0.80.0060.01616.99
8.0.70.0040.00416.99
8.0.60.0000.00716.82
8.0.50.0040.00416.98
8.0.30.0100.01017.23
8.0.20.0090.00917.40
8.0.10.0040.00416.83
8.0.00.0110.00716.85
7.4.330.0040.00415.00
7.4.320.0000.00716.59
7.4.300.0030.00316.66
7.4.290.0040.00416.72
7.4.280.0030.00516.72
7.4.270.0030.00316.75
7.4.260.0000.00716.59
7.4.250.0070.00016.75
7.4.240.0010.00616.73
7.4.230.0000.00716.63
7.4.220.0110.00916.73
7.4.210.0030.01016.64
7.4.200.0070.00016.54
7.4.160.0060.00916.52
7.4.150.0090.00917.40
7.4.140.0090.00717.86
7.4.130.0090.00816.59
7.4.120.0120.00616.71
7.4.110.0110.00716.62
7.4.100.0110.01116.61
7.4.90.0130.00416.61
7.4.80.0060.01219.39
7.4.70.0100.00716.42
7.4.60.0090.00616.56
7.4.50.0050.00016.41
7.4.40.0060.01216.66
7.4.30.0070.01116.46
7.4.00.0040.00814.99
7.3.330.0050.00013.32
7.3.320.0000.00513.32
7.3.310.0040.00316.27
7.3.300.0030.00316.40
7.3.290.0070.01316.46
7.3.280.0080.00716.42
7.3.270.0130.00617.40
7.3.260.0160.00316.28
7.3.250.0100.00716.67
7.3.240.0100.00716.63
7.3.230.0100.00716.50
7.3.210.0080.00816.31
7.3.200.0040.01219.39
7.3.190.0060.00916.57
7.3.180.0090.00616.43
7.3.170.0080.00816.27
7.3.160.0090.00616.25
7.2.330.0090.01116.65
7.2.320.0100.00616.52
7.2.310.0070.01016.46
7.2.300.0100.00616.79
7.2.290.0120.00916.40
7.2.00.0040.01219.36
7.1.100.0110.00018.20
7.1.70.0030.00617.23
7.1.60.0070.01719.46
7.1.50.0040.00716.83
7.1.00.0030.07722.47
7.0.200.0000.00816.68
7.0.140.0070.07022.04
7.0.60.0030.09020.02
7.0.50.0130.08017.81
7.0.40.0130.04020.10
7.0.30.0270.08720.19
7.0.20.0130.05020.05
7.0.10.0100.04720.10
7.0.00.0130.07720.19
5.6.280.0030.07321.09
5.6.210.0100.08020.60
5.6.200.0030.04318.19
5.6.190.0070.08720.78
5.6.180.0070.08720.57
5.6.170.0300.05320.51
5.6.160.0070.08020.33
5.6.150.0100.08318.16
5.6.140.0070.06018.18
5.6.130.0130.07318.12
5.6.120.0100.08321.09
5.6.110.0130.04321.11
5.6.100.0030.08320.97
5.6.90.0030.08021.07
5.6.80.0030.04320.36
5.6.70.4170.03720.47
5.5.350.0130.07720.41
5.5.340.0130.07017.91
5.5.330.0100.04720.27
5.5.320.0330.04020.18
5.5.310.0370.07020.16
5.5.300.0030.08017.88
5.5.290.0070.05017.88
5.5.280.0170.07320.86
5.5.270.0070.05020.83
5.5.260.0000.07320.73
5.5.250.0070.09020.78
5.5.240.0230.05320.06
5.4.450.0230.05019.36
5.4.440.0330.03319.48
5.4.430.0270.04319.42
5.4.420.0230.03719.49
5.4.410.0300.03719.00
5.4.400.0170.03719.07
5.4.390.0430.04319.09
5.4.380.0330.05718.61
5.4.370.0330.05318.73
5.4.360.0270.05718.71
5.4.350.0400.08318.50
5.4.340.0370.05318.61
5.4.320.0040.03812.45
5.4.310.0060.03812.45
5.4.300.0040.03912.45
5.4.290.0040.03912.45
5.4.280.0060.03912.35
5.4.270.0020.04012.35
5.4.260.0090.04412.34
5.4.250.0080.03612.34
5.4.240.0050.03712.34
5.4.230.0090.03612.34
5.4.220.0060.04112.34
5.4.210.0020.03912.34
5.4.200.0070.03612.34
5.4.190.0040.03712.34
5.4.180.0050.03512.34
5.4.170.0040.03612.35
5.4.160.0050.03612.34
5.4.150.0070.03412.34
5.4.140.0040.03712.02
5.4.130.0050.03512.01
5.4.120.0100.03011.96
5.4.110.0050.03611.96
5.4.100.0080.03311.96
5.4.90.0050.03711.97
5.4.80.0070.03811.96
5.4.70.0050.03511.96
5.4.60.0080.03811.96
5.4.50.0040.03611.96
5.4.40.0050.03511.95
5.4.30.0060.03511.95
5.4.20.0070.03311.94
5.4.10.0030.03511.95
5.4.00.0050.04311.43
5.3.290.0060.03812.80
5.3.280.0070.03612.71
5.3.270.0060.03912.72
5.3.260.0060.03812.72
5.3.250.0040.04012.72
5.3.240.0040.03812.72
5.3.230.0080.03912.70
5.3.220.0060.03512.68
5.3.210.0100.04012.68
5.3.200.0060.03512.68
5.3.190.0080.04812.68
5.3.180.0030.03812.68
5.3.170.0080.03612.67
5.3.160.0080.03512.68
5.3.150.0080.03412.68
5.3.140.0040.03712.66
5.3.130.0070.04512.66
5.3.120.0070.04512.66
5.3.110.0100.03512.66
5.3.100.0020.04012.12
5.3.90.0080.03312.09
5.3.80.0050.03512.07
5.3.70.0060.04212.08
5.3.60.0040.03812.07
5.3.50.0080.03912.00
5.3.40.0060.03412.00
5.3.30.0080.04111.95
5.3.20.0030.03911.72
5.3.10.0080.03211.69
5.3.00.0080.03511.68
5.2.170.0040.0319.18
5.2.160.0030.0439.18
5.2.150.0040.0379.18
5.2.140.0060.0299.17
5.2.130.0050.0299.13
5.2.120.0040.0299.13
5.2.110.0080.0319.14
5.2.100.0060.0269.14
5.2.90.0050.0279.14
5.2.80.0050.0299.14
5.2.70.0050.0309.14
5.2.60.0050.0289.09
5.2.50.0060.0289.05
5.2.40.0070.0269.04
5.2.30.0020.0349.01
5.2.20.0080.0259.00
5.2.10.0020.0308.92
5.2.00.0020.0428.78
5.1.60.0070.0218.06
5.1.50.0040.0248.05
5.1.40.0030.0258.04
5.1.30.0050.0318.39
5.1.20.0040.0288.41
5.1.10.0040.0258.14
5.1.00.0040.0258.14
5.0.50.0020.0226.62
5.0.40.0020.0206.47
5.0.30.0020.0326.29
5.0.20.0060.0186.25
5.0.10.0040.0196.23
5.0.00.0070.0336.23
4.4.90.0020.0154.78
4.4.80.0040.0154.75
4.4.70.0050.0214.75
4.4.60.0020.0154.76
4.4.50.0010.0184.77
4.4.40.0020.0284.71
4.4.30.0040.0154.76
4.4.20.0020.0174.84
4.4.10.0040.0204.85
4.4.00.0040.0224.76
4.3.110.0050.0164.67
4.3.100.0010.0164.66
4.3.90.0050.0174.64
4.3.80.0010.0264.59
4.3.70.0030.0154.63
4.3.60.0040.0154.63
4.3.50.0010.0164.63
4.3.40.0040.0294.54
4.3.30.0010.0173.29
4.3.20.0010.0163.26
4.3.10.0020.0153.22
4.3.00.0000.02015.69

preferences:
47.55 ms | 401 KiB | 5 Q