3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "ディーパック"; $encoding = mb_convert_encoding($str,'UTF-8', 'UTF-8'); echo $encoding; ?>

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)
8.3.40.0070.00718.80
8.3.30.0090.00618.93
8.3.20.0040.00420.09
8.3.10.0080.00021.90
8.3.00.0050.00219.02
8.2.170.0130.00619.04
8.2.160.0150.00022.96
8.2.150.0000.00924.18
8.2.140.0030.00524.66
8.2.130.0040.00426.16
8.2.120.0040.00419.56
8.2.110.0030.00721.01
8.2.100.0080.00417.89
8.2.90.0080.00017.91
8.2.80.0060.00317.97
8.2.70.0090.00017.93
8.2.60.0050.00318.34
8.2.50.0040.00418.10
8.2.40.0080.00021.06
8.2.30.0000.00819.10
8.2.20.0040.00417.77
8.2.10.0040.00418.11
8.2.00.0000.00817.70
8.1.270.0080.00018.69
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0030.00623.80
8.1.230.0000.01122.71
8.1.220.0050.00517.74
8.1.210.0040.00418.77
8.1.200.0030.00617.35
8.1.190.0050.00317.22
8.1.180.0040.00418.10
8.1.170.0040.00420.78
8.1.160.0050.00219.04
8.1.150.0040.00418.79
8.1.140.0080.00017.54
8.1.130.0050.00217.81
8.1.120.0040.00417.49
8.1.110.0040.00417.46
8.1.100.0000.00717.42
8.1.90.0000.00717.47
8.1.80.0040.00417.41
8.1.70.0030.00317.41
8.1.60.0040.00417.58
8.1.50.0050.00317.51
8.1.40.0000.00817.50
8.1.30.0080.00017.60
8.1.20.0000.00817.73
8.1.10.0000.00817.51
8.1.00.0050.00317.50
8.0.300.0040.00419.66
8.0.290.0030.00616.75
8.0.280.0050.00318.56
8.0.270.0040.00417.19
8.0.260.0000.00617.28
8.0.250.0040.00416.93
8.0.240.0000.00817.05
8.0.230.0040.00416.98
8.0.220.0060.00016.87
8.0.210.0000.00716.84
8.0.200.0000.00816.79
8.0.190.0050.00216.93
8.0.180.0000.00716.85
8.0.170.0000.00716.84
8.0.160.0040.00316.78
8.0.150.0070.00016.73
8.0.140.0080.00016.73
8.0.130.0000.00613.33
8.0.120.0040.00416.83
8.0.110.0070.00016.80
8.0.100.0060.00316.95
8.0.90.0040.00416.75
8.0.80.0030.01316.80
8.0.70.0040.00416.83
8.0.60.0030.00316.79
8.0.50.0040.00416.74
8.0.30.0100.00917.15
8.0.20.0110.01117.40
8.0.10.0040.00416.98
8.0.00.0100.01216.79
7.4.330.0000.00515.03
7.4.320.0000.00616.59
7.4.300.0030.00316.57
7.4.290.0000.00716.57
7.4.280.0030.00516.64
7.4.270.0000.00716.52
7.4.260.0070.00016.45
7.4.250.0040.00416.59
7.4.240.0010.00616.58
7.4.230.0000.00716.58
7.4.220.0070.01716.57
7.4.210.0130.00616.68
7.4.200.0000.00716.43
7.4.160.0100.00716.61
7.4.150.0030.02117.40
7.4.140.0120.00817.86
7.4.130.0070.01716.45
7.4.120.0100.00716.35
7.4.110.0110.00816.43
7.4.100.0130.01016.63
7.4.90.0160.00316.60
7.4.80.0070.01119.39
7.4.70.0100.00716.50
7.4.60.0060.00916.43
7.4.50.0090.00016.35
7.4.40.0070.01016.50
7.4.30.0070.01016.43
7.4.10.0030.01914.63
7.4.00.0050.01014.89
7.3.330.0000.00513.25
7.3.320.0060.00013.12
7.3.310.0000.00716.38
7.3.300.0060.00016.30
7.3.290.0050.00916.27
7.3.280.0100.01016.29
7.3.270.0130.00617.40
7.3.260.0070.01616.34
7.3.250.0110.01016.24
7.3.240.0100.00516.23
7.3.230.0080.00816.39
7.3.210.0070.01316.46
7.3.200.0130.00319.39
7.3.190.0110.01116.31
7.3.180.0090.00816.56
7.3.170.0070.01316.51
7.3.160.0190.00416.33
7.3.130.0070.00715.06
7.3.120.0130.00314.45
7.3.110.0080.00814.68
7.3.100.0040.01114.75
7.3.90.0000.00914.77
7.3.80.0100.00014.64
7.3.70.0050.00514.85
7.3.60.0100.00714.76
7.3.50.0060.00314.76
7.3.40.0000.01114.84
7.3.30.0030.00914.66
7.3.20.0000.01616.68
7.3.10.0070.00716.68
7.3.00.0030.01316.29
7.2.330.0000.01816.59
7.2.320.0120.00916.29
7.2.310.0120.00316.42
7.2.300.0060.01016.61
7.2.290.0060.01216.58
7.2.260.0030.01614.95
7.2.250.0030.01414.75
7.2.240.0000.01615.23
7.2.230.0090.00614.96
7.2.220.0070.00714.72
7.2.210.0060.00315.14
7.2.200.0000.01115.08
7.2.190.0170.00015.15
7.2.180.0070.00414.64
7.2.170.0060.00614.92
7.2.160.0060.00915.00
7.2.150.0120.00316.77
7.2.140.0030.00916.67
7.2.130.0100.00316.59
7.2.120.0160.00016.90
7.2.110.0090.00616.82
7.2.100.0050.00516.93
7.2.90.0000.00916.65
7.2.80.0100.00016.73
7.2.70.0120.00416.90
7.2.60.0070.00716.72
7.2.50.0080.00616.70
7.2.40.0070.00716.79
7.2.30.0120.00416.91
7.2.20.0000.01217.12
7.2.10.0030.01116.93
7.2.00.0040.00918.23
7.1.330.0060.00615.79
7.1.320.0000.01515.77
7.1.310.0120.00315.97
7.1.300.0070.00715.83
7.1.290.0070.00315.80
7.1.280.0090.00615.75
7.1.270.0100.00715.80
7.1.260.0080.00415.79
7.1.250.0060.00915.53
7.1.240.0030.01315.80
7.1.230.0090.00615.83
7.1.220.0000.01415.89
7.1.210.0060.00615.68
7.1.200.0080.00715.72
7.1.190.0060.00315.63
7.1.180.0040.01115.77
7.1.170.0110.00415.80
7.1.160.0040.00415.90
7.1.150.0000.01415.76
7.1.140.0120.00015.89
7.1.130.0040.00815.79
7.1.120.0100.00315.93
7.1.110.0030.01015.82
7.1.100.0020.00817.10
7.1.90.0060.00615.73
7.1.80.0040.00815.82
7.1.70.0060.00516.50
7.1.60.0020.01617.51
7.1.50.0030.00616.12
7.1.40.0030.00715.70
7.1.30.0030.00915.54
7.1.20.0040.00815.62
7.1.10.0070.00715.55
7.1.00.0050.04219.07
7.0.330.0000.01315.39
7.0.320.0070.00615.45
7.0.310.0060.00915.38
7.0.300.0070.00715.36
7.0.290.0040.00415.41
7.0.280.0000.00815.34
7.0.270.0070.00715.63
7.0.260.0070.00315.21
7.0.250.0070.00415.68
7.0.240.0080.00415.29
7.0.230.0060.00315.32
7.0.220.0060.00315.36
7.0.210.0070.00415.34
7.0.200.0020.00715.96
7.0.190.0000.01115.44
7.0.180.0070.00415.67
7.0.170.0030.00715.45
7.0.160.0040.00415.25
7.0.150.0070.00715.55
7.0.140.0020.03018.82
7.0.130.0050.00515.27
7.0.120.0000.00915.31
7.0.110.0030.01015.43
7.0.100.0120.00015.34
7.0.90.0100.00315.16
7.0.80.0030.01015.52
7.0.70.0030.03818.45
7.0.60.0050.02818.62
7.0.50.0030.04718.90
7.0.40.0000.03516.76
7.0.30.0020.05016.66
7.0.20.0030.04016.78
7.0.10.0060.04416.82
7.0.00.0070.02316.86
5.6.400.0040.01213.98
5.6.390.0030.00914.60
5.6.380.0070.01014.17
5.6.370.0030.01014.59
5.6.360.0000.01314.26
5.6.350.0070.00714.66
5.6.340.0000.00914.39
5.6.330.0060.00913.95
5.6.320.0030.01014.59
5.6.310.0120.00014.11
5.6.300.0030.00714.33
5.6.290.0030.01014.05
5.6.280.0040.04317.46
5.6.270.0030.01014.21
5.6.260.0030.00614.45
5.6.250.0030.00714.32
5.6.240.0100.00714.23
5.6.230.0040.00814.21
5.6.220.0050.03317.49
5.6.210.0040.02517.51
5.6.200.0080.02117.63
5.6.190.0040.03017.61
5.6.180.0050.04717.58
5.6.170.0050.04217.72
5.6.160.0070.04317.81
5.6.150.0050.04417.59
5.6.140.0050.03817.49
5.6.130.0070.04717.60
5.6.120.0000.05517.78
5.6.110.0030.04917.63
5.6.100.0080.03017.58
5.6.90.0080.04217.76
5.6.80.0030.04317.11
5.6.70.0000.02917.34
5.6.60.0070.04317.34
5.6.50.0030.04517.42
5.6.40.0020.04017.28
5.6.30.0050.02817.23
5.6.20.0060.04517.36
5.6.10.0070.04217.24
5.6.00.0040.02917.40
5.5.380.0000.00913.95
5.5.370.0070.00714.43
5.5.360.0020.03317.07
5.5.350.0050.03517.13
5.5.340.0040.04317.40
5.5.330.0110.03217.49
5.5.320.0050.03717.47
5.5.310.0050.03017.40
5.5.300.0030.04017.62
5.5.290.0050.04817.33
5.5.280.0040.04817.50
5.5.270.0040.04017.42
5.5.260.0060.04317.48
5.5.250.0070.04617.31
5.5.240.0020.03517.20
5.5.230.0000.02717.20
5.5.220.0140.03017.17
5.5.210.0050.04017.12
5.5.200.0060.03517.24
5.5.190.0080.03217.25
5.5.180.0070.02017.12
5.5.170.0030.01014.06
5.5.160.0050.04217.27
5.5.150.0020.03417.10
5.5.140.0070.04216.96
5.5.130.0100.03016.99
5.5.120.0090.03917.12
5.5.110.0050.03917.22
5.5.100.0020.04516.98
5.5.90.0070.04116.94
5.5.80.0070.04217.09
5.5.70.0050.04617.10
5.5.60.0050.03917.25
5.5.50.0030.04417.07
5.5.40.0090.03117.08
5.5.30.0000.04717.13
5.5.20.0070.02717.06
5.5.10.0070.04216.87
5.5.00.0070.03816.94
5.4.450.0030.04615.46
5.4.440.0020.03715.48
5.4.430.0040.04515.47
5.4.420.0010.04415.45
5.4.410.0050.03215.39
5.4.400.0050.02315.16
5.4.390.0040.03815.23
5.4.380.0060.01915.22
5.4.370.0070.01815.16
5.4.360.0020.04615.19
5.4.350.0020.02815.31
5.4.340.0050.02715.27
5.4.330.0040.00411.50
5.4.320.0020.04315.15
5.4.310.0020.03215.28
5.4.300.0020.03415.16
5.4.290.0080.03715.28
5.4.280.0050.04015.31
5.4.270.0050.04115.26
5.4.260.0050.04015.29
5.4.250.0020.02915.25
5.4.240.0070.04015.20
5.4.230.0030.04515.36
5.4.220.0030.02715.31
5.4.210.0050.04015.28
5.4.200.0050.04415.20
5.4.190.0030.03815.21
5.4.180.0020.04015.30
5.4.170.0000.04215.19
5.4.160.0080.03315.13
5.4.150.0050.03915.19
5.4.140.0030.04013.93
5.4.130.0030.04113.91
5.4.120.0040.04113.93
5.4.110.0000.03013.87
5.4.100.0050.03413.96
5.4.90.0030.04213.86
5.4.80.0060.03513.85
5.4.70.0050.03813.85
5.4.60.0000.03913.91
5.4.50.0030.03913.87
5.4.40.0030.04213.97
5.4.30.0080.03813.84
5.4.20.0050.04113.93
5.4.10.0060.03813.94
5.4.00.0030.03813.60
5.3.290.0000.07314.62
5.3.280.0070.06014.54
5.3.270.0030.07714.59
5.3.260.0070.07714.56
5.3.250.0000.05714.52
5.3.240.0030.07314.46
5.3.230.0030.07314.59
5.3.220.0030.07714.55
5.3.210.0070.07314.52
5.3.200.0070.03314.57
5.3.190.0070.07314.38
5.3.180.0030.07714.41
5.3.170.0030.05314.55
5.3.160.0070.07014.55
5.3.150.0000.07314.50
5.3.140.0030.07314.55
5.3.130.0030.05014.54
5.3.120.0100.04014.54
5.3.110.0030.07314.50
5.3.100.0030.07313.89
5.3.90.0070.07014.01
5.3.80.0030.07013.96
5.3.70.0100.07013.87
5.3.60.0000.06313.96
5.3.50.0030.05713.80
5.3.40.0030.07713.93
5.3.30.0130.05713.66
5.3.20.0070.06313.44
5.3.10.0030.05013.42
5.3.00.0100.06713.54
5.2.170.0070.05712.32
5.2.160.0030.06312.32
5.2.150.0000.04712.32
5.2.140.0070.06012.32
5.2.130.0030.03712.32
5.2.120.0000.05012.32
5.2.110.0000.03712.32
5.2.100.0030.06012.32
5.2.90.0030.05712.32
5.2.80.0000.06012.32
5.2.70.0070.06312.32
5.2.60.0000.06012.32
5.2.50.0070.06312.32
5.2.40.0000.06312.32
5.2.30.0000.04312.32
5.2.20.0030.06012.32
5.2.10.0000.05712.32
5.2.00.0030.05312.32
5.1.60.0000.05312.32
5.1.50.0030.05312.32
5.1.40.0030.05312.32
5.1.30.0030.06312.32
5.1.20.0070.05712.32
5.1.10.0030.05312.32
5.1.00.0000.05712.32
5.0.50.0070.04012.32
5.0.40.0000.03712.32
5.0.30.0000.06712.32
5.0.20.0000.04312.32
5.0.10.0000.04312.32
5.0.00.0070.06312.32
4.4.90.0000.03712.32
4.4.80.0000.03712.32
4.4.70.0000.03012.32
4.4.60.0000.03312.32
4.4.50.0030.02712.32
4.4.40.0000.05312.32
4.4.30.0030.03712.32
4.4.20.0000.03712.32
4.4.10.0070.02012.32
4.4.00.0070.04712.32
4.3.110.0030.03312.32
4.3.100.0000.03712.32
4.3.90.0000.03312.32
4.3.80.0000.04012.32
4.3.70.0030.03312.32
4.3.60.0000.03312.32
4.3.50.0030.02712.32
4.3.40.0070.05012.32
4.3.30.0030.02312.32
4.3.20.0000.03312.32
4.3.10.0000.04012.32
4.3.00.0030.03312.32

preferences:
58.07 ms | 400 KiB | 5 Q