3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "\x2F\xC0\xAE\x2E\x2F"; $converted = mb_convert_encoding($str, 'UTF-8', 'UTF-8'); var_dump(bin2hex($str), $converted, bin2hex($converted), preg_match('//u', $str));

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)
8.3.70.0150.00018.32
8.3.60.0100.01016.63
8.3.50.0150.00721.97
8.3.40.0140.00018.73
8.3.30.0030.01018.95
8.3.20.0080.00020.11
8.3.10.0040.01123.65
8.3.00.0050.00320.82
8.2.190.0090.00616.63
8.2.180.0070.00716.75
8.2.170.0140.00022.96
8.2.160.0130.00322.30
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0040.00420.52
8.2.110.0030.00622.38
8.2.100.0060.00618.03
8.2.90.0040.00419.05
8.2.80.0000.00817.97
8.2.70.0000.00917.63
8.2.60.0090.00217.91
8.2.50.0050.00318.07
8.2.40.0040.00418.03
8.2.30.0080.00017.98
8.2.20.0050.00317.65
8.2.10.0030.00517.79
8.2.00.0040.00417.79
8.1.280.0150.00625.92
8.1.270.0100.00623.95
8.1.260.0000.00826.35
8.1.250.0000.00728.09
8.1.240.0060.00323.77
8.1.230.0060.00619.16
8.1.220.0000.00817.74
8.1.210.0080.00018.77
8.1.200.0000.00817.35
8.1.190.0040.00417.41
8.1.180.0030.00618.10
8.1.170.0080.00018.63
8.1.160.0050.00222.03
8.1.150.0070.00018.83
8.1.140.0050.00217.64
8.1.130.0000.00717.80
8.1.120.0030.00517.50
8.1.110.0000.00817.64
8.1.100.0030.00317.58
8.1.90.0030.00517.47
8.1.80.0000.00717.58
8.1.70.0000.00817.54
8.1.60.0040.00417.61
8.1.50.0090.00017.55
8.1.40.0040.00417.70
8.1.30.0080.00017.68
8.1.20.0000.00817.63
8.1.10.0040.00417.66
8.1.00.0040.00417.60
8.0.300.0050.00318.77
8.0.290.0000.00717.16
8.0.280.0000.00718.42
8.0.270.0000.00717.27
8.0.260.0040.00417.02
8.0.250.0040.00417.15
8.0.240.0040.00417.20
8.0.230.0000.00717.09
8.0.220.0070.00017.09
8.0.210.0070.00017.16
8.0.200.0000.00617.19
8.0.190.0000.00817.02
8.0.180.0110.00017.15
8.0.170.0000.00717.11
8.0.160.0070.00017.03
8.0.150.0000.00816.95
8.0.140.0000.00717.00
8.0.130.0000.00613.45
8.0.120.0060.00317.07
8.0.110.0030.00417.05
8.0.100.0070.00016.96
8.0.90.0040.00416.93
8.0.80.0090.00616.98
8.0.70.0000.00916.89
8.0.60.0000.00716.95
8.0.50.0000.00717.20
8.0.30.0140.00817.22
8.0.20.0090.01317.43
8.0.10.0070.00017.11
8.0.00.0090.00916.93
7.4.330.0000.00515.16
7.4.320.0060.00016.85
7.4.300.0000.00616.61
7.4.290.0070.00016.68
7.4.280.0070.00316.75
7.4.270.0080.00016.74
7.4.260.0030.00316.72
7.4.250.0000.00716.57
7.4.240.0020.00616.71
7.4.230.0050.00316.92
7.4.220.0070.01116.91
7.4.210.0130.00316.76
7.4.200.0040.00216.59
7.4.190.0030.00316.94
7.4.160.0070.00716.53
7.4.150.0140.00417.40
7.4.140.0090.00917.86
7.4.130.0110.01116.70
7.4.120.0070.01016.67
7.4.110.0150.00616.62
7.4.100.0080.01716.67
7.4.90.0140.01016.40
7.4.80.0030.01316.68
7.4.70.0100.01016.96
7.4.60.0110.00616.85
7.4.50.0040.00416.60
7.4.40.0090.00622.77
7.4.30.0160.00316.44
7.4.00.0050.01214.96
7.3.330.0000.00513.17
7.3.320.0050.00013.17
7.3.310.0030.00316.48
7.3.300.0040.00416.34
7.3.290.0090.00616.45
7.3.280.0070.00916.44
7.3.270.0100.00717.40
7.3.260.0030.01416.31
7.3.250.0110.01016.69
7.3.240.0170.00616.32
7.3.230.0050.01416.41
7.3.210.0060.01016.60
7.3.200.0100.01019.39
7.3.190.0090.00616.29
7.3.180.0090.00616.34
7.3.170.0090.00616.30
7.3.160.0140.00316.30
7.3.120.0060.01114.89
7.3.110.0090.00714.76
7.3.100.0070.00815.05
7.3.90.0050.00814.85
7.3.80.0070.01015.03
7.3.70.0080.00714.90
7.3.60.0070.00514.82
7.3.50.0080.00414.80
7.3.40.0090.00514.80
7.3.30.0070.00814.78
7.3.20.0030.01116.66
7.3.10.0080.00516.59
7.3.00.0070.00916.74
7.2.330.0000.01816.61
7.2.320.0110.00516.74
7.2.310.0040.01316.59
7.2.300.0030.01316.53
7.2.290.0090.00616.75
7.2.250.0080.01015.26
7.2.240.0110.00915.15
7.2.230.0060.00915.13
7.2.220.0030.01115.12
7.2.210.0040.00815.06
7.2.200.0030.01115.02
7.2.190.0070.00614.97
7.2.180.0100.00415.13
7.2.170.0020.01015.11
7.2.60.0040.00817.02
7.2.50.0040.01117.01
7.1.330.0060.00915.91
7.1.320.0090.00315.72
7.1.310.0040.00816.04
7.1.300.0040.00815.87
7.1.290.0040.01015.92
7.1.280.0060.00915.88
7.1.270.0060.00815.78
7.1.260.0060.00815.75
7.1.200.0000.01215.89
7.1.70.0030.00317.45
7.1.60.0140.01019.27
7.1.50.0100.01317.05
7.1.00.0070.07322.54
7.0.200.0070.00416.86
7.0.140.0030.07322.22
7.0.60.0270.07319.91
7.0.50.0070.08017.93
7.0.40.0100.08320.10
7.0.30.0570.07020.19
7.0.20.0170.08720.21
7.0.10.0030.05020.17
7.0.00.0100.06320.18
5.6.210.0130.06720.70
5.6.200.0070.05718.12
5.6.190.0030.06020.67
5.6.180.0200.04720.43
5.6.170.0300.05720.71
5.6.160.0030.08720.70
5.6.150.0070.08318.13
5.6.140.0100.06018.18
5.6.130.0100.07318.18
5.6.120.0030.04721.09
5.6.110.0100.08321.01
5.6.100.0000.04721.12
5.6.90.0070.07720.96
5.6.80.0100.03320.39
5.5.350.4030.04020.37
5.5.340.0030.06318.02
5.5.330.0070.04020.25
5.5.320.0170.04020.50
5.5.310.0330.06720.29
5.5.300.0000.06017.96
5.5.290.0030.05318.02
5.5.280.0100.08020.76
5.5.270.0030.08720.78
5.5.260.0030.05720.79
5.5.250.0170.07020.70
5.5.240.0270.07020.03
5.4.450.0300.05319.45
5.4.440.0900.06319.10
5.4.430.0900.06019.60
5.4.420.1030.05719.46
5.4.410.0100.05718.97
5.4.400.0470.06718.78
5.4.390.0400.05018.77
5.4.380.0200.04718.71
5.4.370.0170.05018.70
5.4.360.0130.05318.71
5.4.350.0230.04718.49
5.4.340.0200.04718.67
5.4.320.0050.03712.45
5.4.310.0090.03712.45
5.4.300.0100.03712.45
5.4.290.0100.03612.45
5.4.280.0090.04412.35
5.4.270.0140.03612.34
5.4.260.0080.03712.35
5.4.250.0040.04312.34
5.4.240.0090.03412.35
5.4.230.0070.03712.34
5.4.220.0070.05112.34
5.4.210.0070.03512.34
5.4.200.0090.04112.34
5.4.190.0120.04712.33
5.4.180.0190.03912.33
5.4.170.0110.04812.34
5.4.160.0170.04512.34
5.4.150.0200.04212.34
5.4.140.0160.04612.02
5.4.130.0170.04212.00
5.4.120.0150.04211.96
5.4.110.0170.04011.96
5.4.100.0190.04011.96
5.4.90.0180.04111.96
5.4.80.0220.03611.96
5.4.70.0320.08711.95
5.4.60.0160.04311.96
5.4.50.0130.04611.96
5.4.40.0120.04411.95
5.4.30.0180.07011.94
5.4.20.0150.04111.94
5.4.10.0190.04011.94
5.4.00.0140.04211.43
5.3.290.0080.03712.80
5.3.280.0080.03612.71
5.3.270.0180.04312.73
5.3.260.0170.04312.72
5.3.250.0120.04812.71
5.3.240.0170.04312.72
5.3.230.0200.04112.71
5.3.220.0160.04412.68
5.3.210.0180.07312.68
5.3.200.0200.04012.68
5.3.190.0220.04012.68
5.3.180.0210.04112.68
5.3.170.0190.04212.67
5.3.160.0220.04712.67
5.3.150.0220.04412.67
5.3.140.0180.04412.66
5.3.130.0340.09012.66
5.3.120.0170.04412.66
5.3.110.0120.05012.66
5.3.100.0120.04812.12
5.3.90.0150.04312.09
5.3.80.0160.04412.07
5.3.70.0360.08512.07
5.3.60.0150.04512.06
5.3.50.0200.04012.00
5.3.40.0170.04312.00
5.3.30.0210.04011.95
5.3.20.0180.04011.73
5.3.10.0160.04011.70
5.3.00.0230.06311.68
5.2.170.0110.0369.19
5.2.160.0200.0269.18
5.2.150.0120.0359.18
5.2.140.0080.0399.18
5.2.130.0140.0329.14
5.2.120.0130.0339.14
5.2.110.0130.0349.15
5.2.100.0180.0289.14
5.2.90.0100.0369.14
5.2.80.0110.0369.13
5.2.70.0110.0369.13
5.2.60.0160.0909.09
5.2.50.0130.0339.06
5.2.40.0110.0369.04
5.2.30.0120.0349.02
5.2.20.0150.0319.00
5.2.10.0100.0368.92
5.2.00.0090.0358.78
5.1.60.0110.0288.06
5.1.50.0050.0358.06
5.1.40.0100.0298.05
5.1.30.0120.0308.39
5.1.20.0140.0288.42
5.1.10.0090.0328.14
5.1.00.0080.0328.14
5.0.50.0100.0246.62
5.0.40.0110.0216.48
5.0.30.0110.0346.29
5.0.20.0070.0256.27
5.0.10.0100.0216.24
5.0.00.0070.0376.23
4.4.90.0240.0614.78
4.4.80.0090.0164.75
4.4.70.0080.0174.75
4.4.60.0070.0184.75
4.4.50.0090.0184.77
4.4.40.0100.0264.71
4.4.30.0090.0184.76
4.4.20.0100.0164.84
4.4.10.0050.0214.84
4.4.00.0080.0274.76
4.3.110.0030.0214.67
4.3.100.0090.0154.66
4.3.90.0060.0184.63
4.3.80.0080.0264.58
4.3.70.0050.0194.63
4.3.60.0060.0174.63
4.3.50.0050.0194.62
4.3.40.0070.0264.53
4.3.30.0050.0183.28
4.3.20.0060.0173.27
4.3.10.0030.0203.23
4.3.00.0070.0176.82

preferences:
43.89 ms | 401 KiB | 5 Q