3v4l.org

run code in 300+ PHP versions simultaneously
<?php $input = ''; var_dump(bin2hex($string)); var_dump( $input ); var_dump( iconv(mb_detect_encoding($input, mb_detect_order(), true), "UTF-8", $input) );

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)
8.3.60.0120.00616.50
8.3.50.0130.00621.21
8.3.40.0000.01518.80
8.3.30.0150.00618.58
8.3.20.0000.00720.39
8.3.10.0040.00423.55
8.3.00.0060.00317.68
8.2.180.0150.00316.50
8.2.170.0180.00422.96
8.2.160.0030.01020.52
8.2.150.0020.00524.18
8.2.140.0080.00024.66
8.2.130.0100.00726.16
8.2.120.0080.00017.63
8.2.110.0060.00319.30
8.2.100.0060.00917.91
8.2.90.0030.00519.05
8.2.80.0050.00317.97
8.2.70.0000.00817.75
8.2.60.0040.00417.92
8.2.50.0000.00818.07
8.2.40.0050.00321.07
8.2.30.0040.00420.61
8.2.20.0000.00717.79
8.2.10.0040.00418.11
8.2.00.0040.00418.11
8.1.280.0040.01425.92
8.1.270.0030.00723.87
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00023.77
8.1.230.0110.00019.06
8.1.220.0050.00417.74
8.1.210.0030.00518.77
8.1.200.0070.00417.23
8.1.190.0060.00317.10
8.1.180.0050.00318.10
8.1.170.0040.00418.61
8.1.160.0000.00721.92
8.1.150.0000.00818.89
8.1.140.0040.00417.45
8.1.130.0030.00317.62
8.1.120.0000.00717.48
8.1.110.0040.00417.48
8.1.100.0040.00417.36
8.1.90.0000.00717.45
8.1.80.0050.00517.36
8.1.70.0030.00317.38
8.1.60.0000.00817.54
8.1.50.0050.00317.42
8.1.40.0020.00517.36
8.1.30.0030.00617.64
8.1.20.0030.00517.50
8.1.10.0080.00017.48
8.1.00.0000.00917.54
8.0.300.0050.00318.77
8.0.290.0040.00416.75
8.0.280.0040.00418.46
8.0.270.0040.00416.88
8.0.260.0000.00717.17
8.0.250.0040.00417.05
8.0.240.0000.00717.01
8.0.230.0070.00016.90
8.0.220.0030.00316.84
8.0.210.0000.00816.91
8.0.200.0070.00017.02
8.0.190.0040.00416.99
8.0.180.0080.00016.95
8.0.170.0050.00216.98
8.0.160.0040.00416.83
8.0.150.0080.00016.75
8.0.140.0000.00716.96
8.0.130.0030.00313.38
8.0.120.0040.00417.09
8.0.110.0060.00317.06
8.0.100.0000.00916.96
8.0.90.0000.00916.97
8.0.80.0030.01317.06
8.0.70.0030.00616.94
8.0.60.0030.00617.11
8.0.50.0000.00917.13
8.0.30.0120.00717.23
8.0.20.0130.00817.40
8.0.10.0060.00317.21
8.0.00.0090.01116.83
7.4.330.0000.00515.08
7.4.320.0000.00616.46
7.4.300.0030.00316.43
7.4.290.0000.00716.44
7.4.280.0040.00416.55
7.4.270.0030.00316.45
7.4.260.0040.00416.39
7.4.250.0000.00916.65
7.4.240.0030.00516.72
7.4.230.0000.00816.75
7.4.220.0150.01216.68
7.4.210.0110.00616.84
7.4.200.0040.00416.82
7.4.160.0150.00416.61
7.4.150.0210.00617.40
7.4.140.0070.01317.86
7.4.130.0110.00916.59
7.4.120.0100.01216.69
7.4.110.0090.01216.78
7.4.100.0090.01216.83
7.4.90.0080.01416.58
7.4.80.0070.01719.39
7.4.70.0070.01416.30
7.4.60.0100.01016.15
7.4.50.0050.00816.29
7.4.40.0050.02016.44
7.4.30.0030.01616.20
7.4.20.0040.01416.37
7.4.10.0110.01116.13
7.4.00.0100.01115.37
7.3.330.0050.00012.99
7.3.320.0060.00013.02
7.3.310.0050.00316.25
7.3.300.0060.00316.43
7.3.290.0070.01116.42
7.3.280.0090.01116.45
7.3.270.0070.01417.40
7.3.260.0100.01016.50
7.3.250.0110.01116.45
7.3.240.0030.02216.53
7.3.230.0170.00616.54
7.3.210.0070.01116.38
7.3.200.0120.00616.69
7.3.190.0100.00916.28
7.3.180.0100.00816.50
7.3.170.0080.01016.36
7.3.160.0070.01616.48
7.3.150.0090.00916.45
7.3.140.0150.00916.07
7.3.130.0030.02016.11
7.3.120.0100.00915.69
7.3.110.0140.00915.54
7.3.100.0130.00815.50
7.3.90.0070.01215.68
7.3.80.0050.01215.75
7.3.70.0050.01315.54
7.3.60.0050.01215.63
7.3.50.0040.01415.61
7.3.40.0100.00715.62
7.3.30.0110.00715.61
7.3.20.0080.01516.60
7.3.10.0050.01216.53
7.3.00.0070.01216.49
7.2.330.0100.01016.74
7.2.320.0150.00416.48
7.2.310.0050.01416.34
7.2.300.0150.00816.63
7.2.290.0090.01516.59
7.2.280.0170.00616.48
7.2.270.0120.00916.23
7.2.260.0170.00716.31
7.2.250.0110.00715.70
7.2.240.0130.01115.77
7.2.230.0090.00915.71
7.2.220.0090.01015.70
7.2.210.0090.00815.74
7.2.200.0120.00615.82
7.2.190.0060.01515.61
7.2.180.0100.00615.69
7.2.170.0040.01015.80
7.2.160.0070.01716.48
7.2.150.0200.00716.36
7.2.140.0110.01216.33
7.2.130.0040.01916.38
7.2.120.0150.00916.36
7.2.110.0060.01616.43
7.2.100.0140.00716.54
7.2.90.0040.01816.34
7.2.80.0380.01316.37
7.2.70.0180.00716.33
7.2.60.0150.00516.41
7.2.50.0420.00616.55
7.2.40.0130.01316.62
7.2.30.0140.00616.48
7.2.20.0120.00916.52
7.2.10.0070.01816.34
7.2.00.0100.00917.93
7.1.330.0130.01215.73
7.1.320.0140.00915.81
7.1.310.0100.01416.00
7.1.300.0220.01115.86
7.1.290.0130.01015.78
7.1.280.0130.01115.68
7.1.270.0220.01415.73
7.1.260.0140.01015.63
7.1.250.0250.01115.79
7.1.240.0170.01315.64
7.1.230.0220.00815.55
7.1.220.0230.00715.67
7.1.210.0270.01015.45
7.1.200.0140.00915.77
7.1.190.0170.01215.70
7.1.180.0180.01415.69
7.1.170.0220.00715.58
7.1.160.0190.00915.63
7.1.150.0180.01115.64
7.1.140.0230.01015.64
7.1.130.0230.01215.70
7.1.120.0170.01215.59
7.1.110.0080.02115.75
7.1.100.0110.01317.01
7.1.90.0210.01215.62
7.1.80.0180.01215.75
7.1.70.0100.01116.29
7.1.60.0110.02017.55
7.1.50.0120.01616.46
7.1.40.0230.00815.79
7.1.30.0340.00615.80
7.1.20.0210.01815.79
7.1.10.1670.00015.64
7.1.00.0090.04919.15
7.0.330.0220.01415.40
7.0.320.0240.00715.43
7.0.310.0400.01115.43
7.0.300.0210.00615.42
7.0.290.0170.01215.27
7.0.280.0160.01315.47
7.0.270.0220.00815.46
7.0.260.0630.01015.54
7.0.250.0220.00615.56
7.0.240.0190.01015.36
7.0.230.0210.01415.55
7.0.220.0160.01315.41
7.0.210.0180.01015.31
7.0.200.0210.01115.06
7.0.190.0180.01015.50
7.0.180.0170.01315.35
7.0.170.1130.01815.53
7.0.160.0210.00915.42
7.0.150.0240.00715.47
7.0.140.0130.01415.58
7.0.130.0240.00615.39
7.0.120.0190.01015.57
7.0.110.0470.00615.52
7.0.100.0760.00915.43
7.0.90.0150.01315.44
7.0.80.0150.01215.43
7.0.70.0170.01015.26
7.0.60.0170.03817.63
7.0.50.0140.04516.61
7.0.40.0160.04617.73
7.0.30.0240.04417.84
7.0.20.0730.04117.75
7.0.10.0150.05117.73
7.0.00.0170.04517.80
5.6.400.0240.00716.06
5.6.390.0120.02515.94
5.6.380.0230.01215.89
5.6.370.0200.01015.81
5.6.360.0130.01715.87
5.6.350.0110.01715.75
5.6.340.0250.00715.77
5.6.330.0210.00915.80
5.6.320.0160.01316.00
5.6.310.0210.01416.00
5.6.300.0170.01315.95
5.6.290.0300.00016.12
5.6.280.0120.02218.54
5.6.270.0150.01515.81
5.6.260.0190.00915.95
5.6.250.0150.01515.99
5.6.240.0220.00715.87
5.6.230.0110.01815.89
5.6.220.0170.01315.82
5.6.210.0140.04318.21
5.6.200.0160.04117.15
5.6.190.0160.04918.47
5.6.180.0360.03418.43
5.6.170.0290.04118.46
5.6.160.0150.02218.24
5.6.150.0090.04917.20
5.6.140.0110.02817.07
5.6.130.0120.05317.01
5.6.120.0170.03518.62
5.6.110.0140.04818.61
5.6.100.0190.04018.54
5.6.90.0110.02918.56
5.6.80.0140.04518.19
5.6.70.0170.01015.92
5.6.60.0200.01016.03
5.6.50.0230.01015.88
5.6.40.0190.01015.87
5.6.30.0200.01015.70
5.6.20.0140.01415.77
5.6.10.0210.00915.96
5.6.00.0180.01815.70
5.5.380.0230.00715.88
5.5.370.0210.00815.84
5.5.360.0130.01815.80
5.5.350.0110.04318.08
5.5.340.0130.04516.89
5.5.330.0110.04118.15
5.5.320.0240.02918.24
5.5.310.0110.03718.05
5.5.300.0130.05117.05
5.5.290.0160.03016.90
5.5.280.0110.03718.33
5.5.270.0110.03018.20
5.5.260.0180.04318.39
5.5.250.0170.02118.31
5.5.240.0170.04218.09
5.5.230.0170.01415.60
5.5.220.0140.01415.93
5.5.210.0210.00615.73
5.5.200.0180.01115.68
5.5.190.0140.01415.78
5.5.180.0230.00415.78
5.5.170.0240.00415.86
5.5.160.0190.01115.51
5.5.150.0220.00715.61
5.5.140.0130.01715.68
5.5.130.0220.00815.55
5.5.120.0210.00915.72
5.5.110.0210.01115.86
5.5.100.0220.00915.64
5.5.90.0200.01015.84
5.5.80.0220.01115.73
5.5.70.0220.00915.72
5.5.60.0200.01015.85
5.5.50.0180.00915.93
5.5.40.0130.01315.89
5.5.30.0200.00815.55
5.5.20.0120.01615.69
5.5.10.0210.00715.82
5.5.00.0120.01515.56
5.4.450.0110.03616.16
5.4.440.0430.03616.25
5.4.430.0450.02916.05
5.4.420.0380.03515.96
5.4.410.0310.03316.10
5.4.400.0090.03415.86
5.4.390.0220.02715.77
5.4.380.0440.03315.66
5.4.370.0290.03515.91
5.4.360.0130.03215.76
5.4.350.0160.03115.55
5.4.340.0340.04215.76
5.4.330.0100.01012.54
5.4.320.0330.04215.88
5.4.310.0460.02715.81
5.4.300.0540.03615.82
5.4.290.0490.03215.64
5.4.280.0420.03415.88
5.4.270.0430.03615.86
5.4.260.0390.03515.87
5.4.250.0500.02815.94
5.4.240.0420.03415.75
5.4.230.0510.02315.75
5.4.220.0380.03615.82
5.4.210.0460.03015.86
5.4.200.0440.03515.67
5.4.190.0480.02715.77
5.4.180.0440.03715.87
5.4.170.0410.04015.94
5.4.160.0280.03815.91
5.4.150.0380.02815.75
5.4.140.0350.03114.44
5.4.130.0440.02414.45
5.4.120.0420.03014.65
5.4.110.0470.02714.56
5.4.100.0490.02614.61
5.4.90.0450.03314.42
5.4.80.0430.03214.50
5.4.70.0150.04014.51
5.4.60.0110.01914.56
5.4.50.0100.03414.60
5.4.40.0150.03714.48
5.4.30.0250.03514.46
5.4.20.0170.02514.46
5.4.10.0180.00512.53
5.4.00.0150.00612.50

preferences:
58.97 ms | 401 KiB | 5 Q