3v4l.org

run code in 300+ PHP versions simultaneously
<?php // iconv checks if ( !function_exists( 'iconv' ) ) { echo( "JsonFallback: iconv PHP extension is missing\n" ); } if ( iconv( 'UTF-8', 'UTF-16BE', "\x00" ) !== "\x00\x00" ) { echo( "JsonFallback: iconv PHP extension failed to convert U+0000\n" ); } if ( iconv( 'UTF-8', 'UTF-16BE', "\xc4\x80" ) !== "\x01\x00" ) { echo( "JsonFallback: iconv PHP extension failed to convert U+0100\n" ); } if ( iconv( 'UTF-8', 'UTF-16BE', "\xef\xbf\xbf" ) !== "\xff\xff" ) { echo( "JsonFallback: iconv PHP extension failed to convert U+FFFF\n" ); } if ( iconv( 'UTF-8', 'UTF-16BE', "\xf0\x90\x80\x80" ) !== "\xd8\x00\xdc\x00" ) { echo( "JsonFallback: iconv PHP extension failed to convert U+10000\n" ); } if ( @iconv( 'UTF-8', 'UTF-16BE', "\xc0\x80" ) !== false ) { echo( "JsonFallback: iconv PHP extension failed to reject C0 80\n" ); } if ( @iconv( 'UTF-8', 'UTF-16BE', "\xf4\x90\x80\x80" ) !== false ) { echo( "JsonFallback: iconv PHP extension failed to reject F4 90 80 80\n" ); }

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)
8.3.40.0080.00618.97
8.3.30.0070.00719.07
8.3.20.0080.00020.41
8.3.10.0040.00423.65
8.3.00.0050.00220.77
8.2.170.0090.00922.96
8.2.160.0120.00318.72
8.2.150.0000.00824.18
8.2.140.0050.00324.66
8.2.130.0000.00726.16
8.2.120.0050.00222.24
8.2.110.0040.00421.98
8.2.100.0060.00617.78
8.2.90.0040.00719.11
8.2.80.0040.00417.97
8.2.70.0090.00017.50
8.2.60.0000.00817.80
8.2.50.0080.00018.07
8.2.40.0000.00819.76
8.2.30.0000.00718.08
8.2.20.0090.00017.52
8.2.10.0000.00818.02
8.2.00.0000.00817.62
8.1.270.0060.00323.88
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0040.00423.93
8.1.230.0070.00419.01
8.1.220.0000.00917.74
8.1.210.0050.00318.77
8.1.200.0090.00017.23
8.1.190.0060.00317.10
8.1.180.0100.00019.01
8.1.170.0030.00518.35
8.1.160.0040.00421.98
8.1.150.0030.00518.47
8.1.140.0000.00717.32
8.1.130.0030.00317.66
8.1.120.0040.00417.41
8.1.110.0000.00717.41
8.1.100.0040.00417.43
8.1.90.0030.00617.35
8.1.80.0060.00317.40
8.1.70.0030.00517.29
8.1.60.0030.00517.56
8.1.50.0000.00717.27
8.1.40.0050.00517.51
8.1.30.0000.00817.60
8.1.20.0060.00317.46
8.1.10.0030.00517.36
8.1.00.0000.00717.41
8.0.300.0040.00418.77
8.0.290.0000.00717.16
8.0.280.0030.00318.39
8.0.270.0040.00417.26
8.0.260.0030.00318.32
8.0.250.0030.00316.89
8.0.240.0030.00616.86
8.0.230.0070.00017.00
8.0.220.0040.00416.96
8.0.210.0080.00016.80
8.0.200.0040.00416.90
8.0.190.0080.00016.97
8.0.180.0070.00016.96
8.0.170.0040.00416.82
8.0.160.0030.00516.91
8.0.150.0020.00516.80
8.0.140.0050.00216.88
8.0.130.0050.00013.48
8.0.120.0000.01017.02
8.0.110.0000.00917.03
8.0.100.0100.00017.13
8.0.90.0030.00616.95
8.0.80.0030.02217.14
8.0.70.0040.00417.12
8.0.60.0030.00617.07
8.0.50.0090.00017.03
8.0.30.0170.00917.28
8.0.20.0080.01317.45
8.0.10.0030.00617.05
8.0.00.0140.00716.88
7.4.330.0050.00015.00
7.4.320.0000.00616.43
7.4.300.0030.00316.47
7.4.290.0000.01016.45
7.4.280.0040.00416.58
7.4.270.0040.00316.54
7.4.260.0070.00016.44
7.4.250.0040.00416.69
7.4.240.0040.00416.59
7.4.230.0000.00916.63
7.4.220.0140.01016.75
7.4.210.0100.00916.65
7.4.200.0030.00516.46
7.4.190.0030.00516.67
7.4.160.0030.01416.68
7.4.150.0150.00717.40
7.4.140.0080.01117.86
7.4.130.0150.00516.77
7.4.120.0070.01316.64
7.4.110.0160.00616.56
7.4.100.0090.01216.55
7.4.90.0060.01516.63
7.4.80.0160.00619.39
7.4.70.0150.00616.45
7.4.60.0160.00816.47
7.4.50.0120.00216.37
7.4.40.0100.01016.37
7.4.30.0160.00616.16
7.4.20.0110.01116.46
7.4.10.0190.01216.28
7.4.00.0160.00715.92
7.3.330.0000.00613.12
7.3.320.0000.00513.02
7.3.310.0030.00516.50
7.3.300.0060.00316.35
7.3.290.0060.01216.48
7.3.280.0080.01016.46
7.3.270.0060.01317.40
7.3.260.0120.00916.76
7.3.250.0130.01516.52
7.3.240.0110.01116.42
7.3.230.0090.01216.39
7.3.210.0130.00616.50
7.3.200.0090.00916.59
7.3.190.0100.01216.24
7.3.180.0130.00816.21
7.3.170.0120.00816.34
7.3.160.0140.00716.39
7.3.150.0200.00416.18
7.3.140.0130.01315.93
7.3.130.0210.00616.29
7.3.120.0110.00915.70
7.3.110.0090.01316.25
7.3.100.0200.00616.27
7.3.90.0210.00316.18
7.3.80.0110.01016.15
7.3.70.0040.01816.25
7.3.60.0150.01016.40
7.3.50.0140.00916.10
7.3.40.0030.02116.31
7.3.30.0070.01316.39
7.3.20.0170.00918.34
7.3.10.0100.00517.42
7.3.00.0160.00517.46
7.2.330.0090.01216.68
7.2.320.0160.01016.80
7.2.310.0150.01016.68
7.2.300.0120.01116.73
7.2.290.0050.01816.65
7.2.280.0120.01216.40
7.2.270.0320.02316.56
7.2.260.0130.00916.53
7.2.250.0140.01116.31
7.2.240.0140.00816.41
7.2.230.0100.01616.52
7.2.220.0110.01116.40
7.2.210.0100.01316.49
7.2.200.0140.00716.40
7.2.190.0180.00716.20
7.2.180.0100.01416.25
7.2.170.0150.00516.43
7.2.160.0060.01516.66
7.2.150.0080.01218.51
7.2.140.0100.01418.27
7.2.130.0080.01017.60
7.2.120.0110.01117.61
7.2.110.0190.00517.70
7.2.100.0090.00917.36
7.2.90.0110.01117.58
7.2.80.0150.00717.56
7.2.70.0110.01117.61
7.2.60.0060.01117.35
7.2.50.0120.00917.72
7.2.40.0160.00717.61
7.2.30.0150.01017.68
7.2.20.0090.01717.68
7.2.10.0030.01417.70
7.2.00.0060.01218.37
7.1.330.0250.00817.43
7.1.320.0180.01417.39
7.1.310.0240.01017.26
7.1.300.0270.00817.32
7.1.290.0260.01017.32
7.1.280.0230.01117.43
7.1.270.0180.01517.54
7.1.260.0130.01417.54
7.1.250.0160.00816.49
7.1.240.0240.01417.27
7.1.230.0200.01317.52
7.1.220.0240.01217.58
7.1.210.0200.01017.34
7.1.200.0100.01416.53
7.1.190.0210.01117.46
7.1.180.0180.01517.23
7.1.170.0230.01217.45
7.1.160.0090.02317.32
7.1.150.0170.01317.27
7.1.140.0270.01217.39
7.1.130.0260.00817.50
7.1.120.0250.01117.61
7.1.110.0250.00617.53
7.1.100.0180.01017.76
7.1.90.0260.00817.50
7.1.80.0110.02117.42
7.1.70.0120.01317.38
7.1.60.0140.01618.45
7.1.50.0190.00817.16
7.1.40.0200.01017.38
7.1.30.0230.01217.48
7.1.20.0260.00617.43
7.1.10.0280.00317.46
7.1.00.0160.04419.89
7.0.330.0180.01217.18
7.0.320.0190.00917.19
7.0.310.0140.01517.16
7.0.300.0230.01217.03
7.0.290.0140.01517.16
7.0.280.0250.00617.20
7.0.270.0260.00716.95
7.0.260.0200.01316.95
7.0.250.0180.01117.19
7.0.240.0180.01217.13
7.0.230.0220.01117.24
7.0.220.0190.01217.11
7.0.210.0220.00817.14
7.0.200.0080.01216.97
7.0.190.0250.00417.38
7.0.180.0140.01417.25
7.0.170.0220.00917.09
7.0.160.0160.01617.16
7.0.150.0210.00916.98
7.0.140.0100.05419.63
7.0.130.0190.01317.11
7.0.120.0210.00917.23
7.0.110.0170.01117.19
7.0.100.0120.01817.22
7.0.90.0180.01016.99
7.0.80.0170.01317.11
7.0.70.0150.04419.38
7.0.60.0110.04019.45
7.0.50.0120.04619.67
7.0.40.0110.04918.64
7.0.30.0080.04918.70
7.0.20.0100.04718.66
7.0.10.0140.04718.66
7.0.00.0160.03818.62
5.6.400.0140.02216.32
5.6.390.0220.01616.06
5.6.380.0200.01216.11
5.6.370.0170.01416.12
5.6.360.0270.00915.84
5.6.350.0250.00815.96
5.6.340.0100.02216.05
5.6.330.0140.02015.88
5.6.320.0180.01816.20
5.6.310.0220.01816.07
5.6.300.0180.01516.11
5.6.290.0200.01716.02
5.6.280.0160.03918.61
5.6.270.0180.01216.15
5.6.260.0250.00715.87
5.6.250.0190.01016.11
5.6.240.0240.00816.00
5.6.230.0120.01916.09
5.6.220.0120.04418.32
5.6.210.0190.04418.18
5.6.200.0090.05418.61
5.6.190.0080.04218.55
5.6.180.0130.04918.62
5.6.170.0140.03818.60
5.6.160.0180.03518.51
5.6.150.0090.04918.50
5.6.140.0140.04218.59
5.6.130.0160.04118.51
5.6.120.0160.04818.62
5.6.110.0130.04818.66
5.6.100.0130.04718.54
5.6.90.0130.04218.57
5.6.80.0130.04118.16
5.6.70.0120.04518.21
5.6.60.0140.03718.34
5.6.50.0150.02918.22
5.6.40.0130.04418.24
5.6.30.0110.04818.14
5.6.20.0160.04418.37
5.6.10.0130.03418.25
5.6.00.0170.04218.21
5.5.380.0250.01216.07
5.5.370.0200.01016.15
5.5.360.0110.04618.02
5.5.350.0140.04618.10
5.5.340.0140.04718.43
5.5.330.0120.04718.46
5.5.320.0110.03518.47
5.5.310.0170.04318.38
5.5.300.0110.03318.47
5.5.290.0080.04918.44
5.5.280.0120.03818.56
5.5.270.0150.05018.51
5.5.260.0060.05418.53
5.5.250.0170.03718.38
5.5.240.0080.05118.07
5.5.230.0170.03918.00
5.5.220.0120.02917.90
5.5.210.0150.03918.16
5.5.200.0160.04218.11
5.5.190.0080.04917.96
5.5.180.0110.04018.17
5.5.170.0190.01115.98
5.5.160.0120.04218.13
5.5.150.0110.04818.00
5.5.140.0160.04018.09
5.5.130.0070.04318.15
5.5.120.0120.04318.11
5.5.110.0160.04018.06
5.5.100.0150.04718.21
5.5.90.0100.04518.00
5.5.80.0110.03518.01
5.5.70.0170.03917.91
5.5.60.0120.04318.08
5.5.50.0100.03517.98
5.5.40.0140.03817.85
5.5.30.0140.03518.09
5.5.20.0120.03618.02
5.5.10.0160.02918.08
5.5.00.0100.04017.96
5.4.450.0110.03015.88
5.4.440.0070.04716.06
5.4.430.0110.03515.93
5.4.420.0090.04116.10
5.4.410.0110.04016.03
5.4.400.0080.04315.82
5.4.390.0120.03815.83
5.4.380.0110.04415.73
5.4.370.0100.03615.89
5.4.360.0110.03415.84
5.4.350.0130.03515.70
5.4.340.0100.04115.88
5.4.330.0180.00412.33
5.4.320.0120.03815.88
5.4.310.0090.03915.83
5.4.300.0090.03915.79
5.4.290.0120.02915.69
5.4.280.0120.02915.75
5.4.270.0120.04115.71
5.4.260.0100.03815.65
5.4.250.0120.04315.85
5.4.240.0070.04416.00
5.4.230.0090.04115.70
5.4.220.0050.03615.82
5.4.210.0110.02915.72
5.4.200.0090.03715.84
5.4.190.0100.03915.74
5.4.180.0140.03015.84
5.4.170.0090.04215.72
5.4.160.0170.02115.67
5.4.150.0080.02815.73
5.4.140.0060.02414.63
5.4.130.0090.04414.58
5.4.120.0120.03614.47
5.4.110.0120.03214.54
5.4.100.0070.03714.54
5.4.90.0000.04314.48
5.4.80.0080.04114.48
5.4.70.0150.03314.36
5.4.60.0070.03914.57
5.4.50.0070.04514.59
5.4.40.0090.02514.57
5.4.30.0090.04414.58
5.4.20.0110.03814.49
5.4.10.0050.04414.52
5.4.00.0100.03714.14
5.3.290.0070.04413.98
5.3.280.0090.04413.88
5.3.270.0100.03213.97
5.3.260.0130.03913.84
5.3.250.0100.03013.92
5.3.240.0140.04013.80
5.3.230.0070.04213.89
5.3.220.0080.03713.83
5.3.210.0090.04413.77
5.3.200.0110.04313.81
5.3.190.0090.03813.94
5.3.180.0090.04713.92
5.3.170.0100.03813.93
5.3.160.0090.04313.96
5.3.150.0100.04213.86
5.3.140.0100.04213.88
5.3.130.0130.03614.00
5.3.120.0070.04514.05
5.3.110.0110.04513.94
5.3.100.0120.03913.61
5.3.90.0090.04313.73
5.3.80.0120.03313.73
5.3.70.0060.03813.51
5.3.60.0070.03013.68
5.3.50.0110.03813.59
5.3.40.0090.03513.64
5.3.30.0090.03313.46
5.3.20.0090.03713.46
5.3.10.0070.03913.28
5.3.00.0110.03913.41
5.2.170.0030.04011.82
5.2.160.0130.03211.83
5.2.150.0100.03611.87
5.2.140.0100.03111.80
5.2.130.0040.03911.76
5.2.120.0090.02911.74
5.2.110.0050.03711.81
5.2.100.0070.04211.76
5.2.90.0080.02911.82
5.2.80.0060.03611.75
5.2.70.0060.03711.73
5.2.60.0050.03111.75
5.2.50.0060.03911.85
5.2.40.0040.03911.84
5.2.30.0080.04011.73
5.2.20.0070.03611.72
5.2.10.0070.03011.71
5.2.00.0090.02811.71
5.1.60.0060.03311.71
5.1.50.0060.03011.71
5.1.40.0110.02511.71
5.1.30.0020.04011.71
5.1.20.0090.03511.71
5.1.10.0050.03311.71
5.1.00.0090.02711.71
5.0.50.0050.02911.71
5.0.40.0080.02811.71
5.0.30.0030.04111.71
5.0.20.0050.02311.71
5.0.10.0090.02211.71
5.0.00.0070.03211.71
4.4.90.0030.01611.71
4.4.80.0050.01811.71
4.4.70.0040.01611.71
4.4.60.0030.01211.71
4.4.50.0050.01811.71
4.4.40.0070.02511.71
4.4.30.0040.01811.71
4.4.20.0070.01811.71
4.4.10.0000.02411.71
4.4.00.0000.03211.71
4.3.110.0030.01911.71
4.3.100.0020.01911.71
4.3.90.0040.02211.71
4.3.80.0040.02811.71
4.3.70.0060.01511.71
4.3.60.0030.01811.71
4.3.50.0040.01711.71
4.3.40.0020.02911.71
4.3.30.0030.02011.71
4.3.20.0020.02111.71
4.3.10.0030.02111.71
4.3.00.0020.01311.71

preferences:
43.65 ms | 400 KiB | 5 Q