3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = array ( 0 => array ( ) ); mb_convert_variables('utf-8', 'cp1251', $test); var_dump($test); mb_convert_variables('utf-8', 'utf-8', $test); var_dump($test);

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)
8.3.40.0070.00718.71
8.3.30.0070.00718.57
8.3.20.0080.00019.07
8.3.10.0000.00723.48
8.3.00.0000.00823.63
8.2.170.0100.00722.96
8.2.160.0140.00319.04
8.2.150.0000.00924.18
8.2.140.0070.00024.66
8.2.130.0000.00826.16
8.2.120.0050.00321.17
8.2.110.0110.00022.33
8.2.100.0090.00318.03
8.2.90.0080.00017.75
8.2.80.0040.00417.97
8.2.70.0080.00018.03
8.2.60.0000.01017.93
8.2.50.0080.00018.10
8.2.40.0080.00019.38
8.2.30.0000.00819.32
8.2.20.0050.00217.99
8.2.10.0030.00519.53
8.2.00.0000.00819.34
8.1.270.0040.00420.33
8.1.260.0080.00026.35
8.1.250.0080.00028.09
8.1.240.0060.00323.91
8.1.230.0000.01119.14
8.1.220.0030.00617.76
8.1.210.0050.00318.77
8.1.200.0030.00617.47
8.1.190.0000.01017.35
8.1.180.0000.00918.10
8.1.170.0040.00418.82
8.1.160.0050.00218.99
8.1.150.0000.00718.88
8.1.140.0030.00619.70
8.1.130.0000.00717.42
8.1.120.0030.00317.52
8.1.110.0040.00417.53
8.1.100.0070.00017.64
8.1.90.0030.00517.47
8.1.80.0000.00717.50
8.1.70.0000.00717.52
8.1.60.0050.00317.66
8.1.50.0040.00417.64
8.1.40.0040.00417.67
8.1.30.0000.00817.81
8.1.20.0000.00917.80
8.1.10.0080.00017.57
8.1.00.0000.00817.71
8.0.300.0040.00418.77
8.0.290.0000.00816.75
8.0.280.0000.00718.50
8.0.270.0000.00817.33
8.0.260.0000.00716.88
8.0.250.0030.00316.92
8.0.240.0000.00716.99
8.0.230.0000.00716.91
8.0.220.0040.00416.92
8.0.210.0000.00716.91
8.0.200.0000.00717.04
8.0.190.0000.00716.91
8.0.180.0040.00417.00
8.0.170.0000.00916.99
8.0.160.0000.00716.91
8.0.150.0030.00516.90
8.0.140.0000.00816.80
8.0.130.0000.00513.31
8.0.120.0040.00416.89
8.0.110.0040.00416.93
8.0.100.0000.00716.88
8.0.90.0000.00717.06
8.0.80.0050.01316.96
8.0.70.0040.00416.84
8.0.60.0080.00016.86
8.0.50.0030.00516.95
8.0.30.0110.01016.98
8.0.20.0110.00817.40
8.0.10.0080.00016.96
8.0.00.0100.01016.68
7.4.330.0030.00315.55
7.4.320.0000.00616.52
7.4.300.0030.00316.50
7.4.290.0000.00716.57
7.4.280.0040.00416.34
7.4.270.0090.00016.60
7.4.260.0040.00416.54
7.4.250.0070.00016.61
7.4.240.0070.00016.55
7.4.230.0030.00516.71
7.4.220.0080.00016.70
7.4.210.0090.00516.59
7.4.200.0080.00016.61
7.4.160.0070.01116.50
7.4.140.0130.00817.86
7.4.130.0090.01016.52
7.4.120.0110.00816.46
7.4.110.0100.00716.52
7.4.100.0030.01616.46
7.4.90.0030.01416.48
7.4.80.0030.01319.39
7.4.70.0120.00916.50
7.4.60.0060.00916.46
7.4.50.0000.01616.50
7.4.40.0120.00616.42
7.4.00.0030.01315.09
7.3.330.0020.00212.91
7.3.320.0050.00013.11
7.3.310.0060.00016.14
7.3.300.0030.00316.19
7.3.290.0030.00316.11
7.3.280.0060.01016.09
7.3.260.0110.00816.37
7.3.240.0090.01016.23
7.3.230.0030.01416.25
7.3.210.0040.01316.48
7.3.200.0090.00916.32
7.3.190.0040.01116.64
7.3.180.0040.01216.15
7.3.170.0110.00616.61
7.3.160.0050.01116.60
7.3.10.0570.00314.89
7.3.00.0490.00314.48
7.2.330.0050.01416.31
7.2.320.0150.00416.50
7.2.310.0090.00916.22
7.2.300.0080.00816.34
7.2.290.0080.00916.40
7.2.130.0610.01315.03
7.2.120.1280.00314.66
7.2.110.0700.00615.11
7.2.100.0540.00914.58
7.2.90.0410.01315.00
7.2.80.0300.00814.96
7.2.70.0380.00814.85
7.2.60.0390.00514.79
7.2.50.0320.00414.97
7.2.40.0290.00514.95
7.2.30.0290.00514.79
7.2.20.0300.00814.91
7.2.10.0280.00515.06
7.2.00.0290.00914.80
7.1.250.0650.00313.85
7.1.240.0950.00314.05
7.1.230.0850.00613.70
7.1.220.0770.01214.03
7.1.210.0550.01213.94
7.1.200.0340.00614.85
7.1.190.0380.01213.84
7.1.180.0370.00813.88
7.1.170.0400.00813.88
7.1.160.0290.00713.70
7.1.150.0310.00814.04
7.1.140.0370.00613.78
7.1.130.0370.01313.85
7.1.120.0580.01013.90
7.1.110.0450.00613.85
7.1.100.0710.01113.87
7.1.90.0350.01213.92
7.1.80.0390.01113.88
7.1.70.0470.00513.81
7.1.60.0430.00822.66
7.1.50.0380.01522.75
7.1.40.0480.01322.68
7.1.30.0420.01122.69
7.1.20.0430.01122.83
7.1.10.0340.01013.72
7.1.00.0390.00513.72
7.0.330.0490.00413.29
7.0.320.0570.00713.58
7.0.310.0350.01213.39
7.0.300.0350.00713.42
7.0.290.0680.00613.71
7.0.280.0470.01213.53
7.0.270.0540.01313.81
7.0.260.0530.01813.45
7.0.250.0710.00313.45
7.0.240.0670.00613.74
7.0.230.0440.01513.55
7.0.220.0580.01213.63
7.0.210.0420.00313.41
7.0.200.0410.00612.77
7.0.190.0640.01113.61
7.0.180.0390.00413.08
7.0.170.0470.00513.18
7.0.160.0450.01013.20
7.0.150.0410.01013.43
7.0.140.0660.00613.48
7.0.130.0650.01113.34
7.0.120.0460.01313.39
7.0.110.0540.01313.23
7.0.100.0400.00913.03
7.0.90.0620.00713.54
7.0.80.0650.00013.59
7.0.70.0650.01013.73
7.0.60.0490.01213.38
7.0.50.0530.01013.38
7.0.40.0490.00313.70
7.0.30.0540.00913.66
7.0.20.0610.00713.56
7.0.10.0400.01413.60
7.0.00.0410.01013.02
5.6.380.0120.02114.32
5.6.370.0100.02014.23
5.6.360.0130.00614.48
5.6.350.0240.00814.17
5.6.340.0180.00714.47
5.6.330.0110.01914.14
5.6.320.0240.00314.26
5.6.310.0140.01214.06
5.6.300.0070.00714.16
5.6.290.0170.00014.34
5.6.280.0060.00913.83
5.6.270.0110.01113.98
5.6.260.0160.00614.13
5.6.250.0150.00414.33
5.6.240.0110.00714.00
5.6.230.0140.00514.21
5.6.220.0080.00814.55
5.6.210.0110.01414.20
5.6.200.0030.01313.91
5.6.190.0080.01714.16
5.6.180.0120.00914.22
5.6.170.0090.00614.09
5.6.160.0250.00614.32
5.6.150.0180.00313.91
5.6.140.0190.01114.40
5.6.130.0120.01214.13
5.6.120.0200.00714.00
5.6.110.0080.00814.24
5.6.100.0180.01414.07
5.6.90.0100.01614.04
5.6.80.0150.00313.79
5.6.70.0040.01713.62
5.6.60.0140.01413.91
5.6.50.0140.01113.88
5.6.40.0110.01513.94
5.6.30.0100.00713.71
5.6.20.0060.01814.04
5.6.10.0220.00014.16
5.6.00.0190.00614.21
5.5.380.0130.00310.95
5.5.370.0090.00911.08
5.5.360.0050.01410.65
5.5.350.0170.00411.09
5.5.340.0080.01611.13
5.5.330.0110.00210.99
5.5.320.0060.01111.00
5.5.310.0070.01010.81
5.5.300.0200.00410.78
5.5.290.0070.01110.76
5.5.280.0070.00410.69
5.5.270.0070.00710.77
5.5.260.0100.01011.16
5.5.250.0110.00410.63
5.5.240.0080.00810.36
5.5.230.0120.00410.38
5.5.220.0000.01310.54
5.5.210.0030.01010.68
5.5.200.0140.00610.67
5.5.190.0070.01010.49
5.5.180.0040.01310.84
5.5.170.0090.00410.75
5.5.160.0050.00810.52
5.5.150.0100.00610.77
5.5.140.0070.01410.59
5.5.130.0130.00010.53
5.5.120.0060.00910.65
5.5.110.0060.00610.86
5.5.100.0060.00310.92
5.5.90.0110.00010.63
5.5.80.0110.00410.85
5.5.70.0090.00910.98
5.5.60.0090.00010.66
5.5.50.0040.01610.75
5.5.40.0050.00510.63
5.5.30.0050.00510.48
5.5.20.0090.00910.93
5.5.10.0100.01010.93
5.5.00.0080.01110.91
5.4.450.0170.00010.65
5.4.440.0130.00010.89
5.4.430.0130.00410.79
5.4.420.0060.01410.91
5.4.410.0090.00910.71
5.4.400.0100.01010.51
5.4.390.0070.01010.74
5.4.380.0140.00510.79
5.4.370.0190.00310.73
5.4.360.0040.00810.61
5.4.350.0110.00310.72
5.4.340.0140.00410.63
5.4.330.0110.00010.80
5.4.320.0110.00010.79
5.4.310.0050.00810.57
5.4.300.0140.01010.97
5.4.290.0090.00910.71
5.4.280.0080.00410.64
5.4.270.0080.00810.68
5.4.260.0080.00411.13
5.4.250.0090.00310.71
5.4.240.0070.01110.85
5.4.230.0060.00610.61
5.4.220.0110.00810.41
5.4.210.0050.00510.66
5.4.200.0060.00610.44
5.4.190.0120.00010.88
5.4.180.0040.01210.93
5.4.170.0120.00010.87
5.4.160.0120.00011.02
5.4.150.0060.01511.12
5.4.140.0150.00010.65
5.4.130.0140.00311.01
5.4.120.0120.00810.83
5.4.110.0160.00010.80
5.4.100.0120.00210.83
5.4.90.0090.00210.97
5.4.80.0150.00010.96
5.4.70.0030.01410.99
5.4.60.0110.00411.13
5.4.50.0090.00910.84
5.4.40.0100.00510.66
5.4.30.0160.00310.65
5.4.20.0120.00010.97
5.4.10.0000.01510.78
5.4.00.0080.00310.70
5.3.290.0100.00710.36
5.3.280.0000.00810.25
5.3.270.0110.00410.32
5.3.260.0100.00010.43
5.3.250.0130.00310.25
5.3.240.0050.00510.36
5.3.230.0140.00310.50
5.3.220.0120.00610.29
5.3.210.0090.00510.33
5.3.200.0000.01310.33
5.3.190.0150.00010.37
5.3.180.0050.00810.52
5.3.170.0170.00010.53
5.3.160.0080.01410.47
5.3.150.0120.00610.25
5.3.140.0100.00310.38
5.3.130.0040.00710.47
5.3.120.0000.01210.36
5.3.110.0070.00410.41
5.3.100.0090.00910.11
5.3.90.0120.00410.40
5.3.80.0080.00810.11
5.3.70.0080.00810.20
5.3.60.0140.00010.35
5.3.50.0060.00610.18
5.3.40.0070.00510.21
5.3.30.0080.01110.27
5.3.20.0070.00210.17
5.3.10.0080.00510.22
5.3.00.0100.00010.17
5.2.170.0050.0059.65
5.2.160.0040.0079.45
5.2.150.0000.0109.63
5.2.140.0170.0009.63
5.2.130.0070.0109.67
5.2.120.0140.0009.67
5.2.110.0040.0049.66
5.2.100.0070.0029.68
5.2.90.0070.0039.50
5.2.80.0110.0039.51
5.2.70.0060.0099.38
5.2.60.0100.0039.42
5.2.50.0110.0009.21
5.2.40.0110.0059.54
5.2.30.0100.0089.52
5.2.20.0000.0169.38
5.2.10.0120.0009.21
5.2.00.0120.0039.35
5.1.60.0130.0008.99
5.1.50.0110.0008.99
5.1.40.0120.0008.99
5.1.30.0080.0088.99
5.1.20.0100.0008.99
5.1.10.0000.0088.99
5.1.00.0040.0118.99
5.0.50.0070.0078.99
5.0.40.0080.0058.99
5.0.30.0000.0078.99
5.0.20.0050.0058.99
5.0.10.0090.0008.99
5.0.00.0080.0038.99
4.4.90.0050.0028.99
4.4.80.0080.0038.99
4.4.70.0060.0008.99
4.4.60.0030.0068.99
4.4.50.0030.0038.99
4.4.40.0090.0008.99
4.4.30.0070.0048.99
4.4.20.0030.0068.99
4.4.10.0060.0068.99
4.4.00.0080.0048.99
4.3.110.0080.0008.99
4.3.100.0030.0038.99
4.3.90.0040.0048.99
4.3.80.0030.0038.99
4.3.70.0020.0078.99
4.3.60.0030.0108.99
4.3.50.0000.0058.99
4.3.40.0030.0028.99
4.3.30.0040.0008.99
4.3.20.0060.0038.99
4.3.10.0050.0028.99
4.3.00.0000.0058.99

preferences:
64.82 ms | 400 KiB | 5 Q