3v4l.org

run code in 300+ PHP versions simultaneously
<?php $some_string = "Ку ку"; $arra_c = array("ASCII", "Windows-1252", "ISO-8859-15", "ISO-8859-1", "ISO-8859-6", "CP1256"); foreach($arra_c as $k => $v){ var_dump(mb_convert_encoding($some_string,$v,"UTF-8" )); } //var_dump(mb_detect_encoding($some_string)); //var_dump(strlen(json_encode(array('message' => $some_string))));

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)
8.3.60.0070.00718.31
8.3.50.0070.01021.21
8.3.40.0070.00718.71
8.3.30.0100.00320.38
8.3.20.0070.00720.18
8.3.10.0000.00521.95
8.3.00.0000.01022.24
8.2.180.0070.01016.97
8.2.170.0110.00422.96
8.2.160.0070.00720.52
8.2.150.0080.00024.18
8.2.140.0090.00024.66
8.2.130.0040.00426.16
8.2.120.0070.00719.91
8.2.110.0070.00321.09
8.2.100.0100.00318.09
8.2.90.0030.00519.30
8.2.80.0090.00019.34
8.2.70.0060.00317.63
8.2.60.0040.00417.93
8.2.50.0060.00318.07
8.2.40.0000.01018.34
8.2.30.0000.00718.19
8.2.20.0040.00417.98
8.2.10.0070.00017.88
8.2.00.0040.00418.12
8.1.280.0110.00725.92
8.1.270.0070.00024.66
8.1.260.0040.00426.35
8.1.250.0000.00828.09
8.1.240.0040.00420.89
8.1.230.0000.01122.13
8.1.220.0060.00317.77
8.1.210.0040.00418.77
8.1.200.0060.00317.75
8.1.190.0040.00417.89
8.1.180.0020.00520.36
8.1.170.0000.00818.81
8.1.160.0030.00322.15
8.1.150.0030.00718.84
8.1.140.0040.00417.52
8.1.130.0050.00217.84
8.1.120.0040.00417.54
8.1.110.0040.00417.56
8.1.100.0000.00717.71
8.1.90.0070.00017.58
8.1.80.0050.00217.65
8.1.70.0070.00017.54
8.1.60.0030.00617.68
8.1.50.0000.00717.64
8.1.40.0040.00417.66
8.1.30.0070.00017.84
8.1.20.0040.00417.82
8.1.10.0040.00417.81
8.1.00.0040.00417.75
8.0.300.0000.00718.77
8.0.290.0040.00417.30
8.0.280.0040.00418.58
8.0.270.0030.00317.27
8.0.260.0000.00616.87
8.0.250.0000.00717.07
8.0.240.0060.00317.13
8.0.230.0000.00717.06
8.0.220.0000.00817.11
8.0.210.0030.00317.00
8.0.200.0000.00817.09
8.0.190.0040.00417.19
8.0.180.0070.00017.00
8.0.170.0000.00817.15
8.0.160.0050.00217.14
8.0.150.0030.00516.94
8.0.140.0000.00717.08
8.0.130.0060.00013.47
8.0.120.0060.00317.06
8.0.110.0080.00016.98
8.0.100.0000.00717.14
8.0.90.0030.00516.95
8.0.80.0000.01517.04
8.0.70.0030.00516.98
8.0.60.0080.00016.90
8.0.50.0050.00317.09
8.0.30.0080.01117.17
8.0.20.0120.00617.40
8.0.10.0000.00716.97
8.0.00.0090.01217.01
7.4.330.0030.00315.20
7.4.320.0030.00316.73
7.4.300.0000.00616.61
7.4.290.0040.00416.75
7.4.280.0040.00416.57
7.4.270.0070.00016.79
7.4.260.0030.00316.52
7.4.250.0000.00816.69
7.4.240.0020.00616.74
7.4.230.0000.00716.73
7.4.220.0110.00716.55
7.4.210.0110.00616.63
7.4.200.0040.00416.60
7.4.190.0000.00716.74
7.4.160.0090.00616.56
7.4.150.0140.00317.40
7.4.140.0090.01217.86
7.4.130.0030.01416.55
7.4.120.0050.01116.66
7.4.110.0030.01316.53
7.4.100.0030.01316.63
7.4.90.0000.01616.57
7.4.80.0130.00419.39
7.4.70.0110.00616.61
7.4.60.0130.00316.59
7.4.50.0040.00016.50
7.4.40.0070.01022.77
7.4.30.0110.00616.63
7.4.00.0060.00915.30
7.3.330.0050.00013.38
7.3.320.0030.00313.33
7.3.310.0040.00416.25
7.3.300.0000.00716.47
7.3.290.0070.00716.35
7.3.280.0100.00616.41
7.3.270.0150.00317.40
7.3.260.0180.00316.46
7.3.250.0120.00816.75
7.3.240.0080.00816.73
7.3.230.0120.00616.60
7.3.210.0170.00016.47
7.3.200.0070.01019.39
7.3.190.0100.00716.59
7.3.180.0070.01316.71
7.3.170.0110.00516.50
7.3.160.0100.00716.36
7.3.120.0030.01014.58
7.3.110.0090.00615.03
7.3.100.0090.00614.92
7.3.90.0110.00415.12
7.3.80.0060.00615.07
7.3.70.0030.01314.96
7.3.60.0060.01214.61
7.3.50.0100.00314.62
7.3.40.0070.00714.96
7.3.30.0170.00014.93
7.3.20.0040.00816.53
7.3.10.0110.00716.76
7.3.00.0100.01116.70
7.2.330.0100.00716.88
7.2.320.0180.00616.67
7.2.310.0030.01316.54
7.2.300.0170.00016.58
7.2.290.0080.00816.80
7.2.240.0040.01415.08
7.2.230.0030.00914.98
7.2.220.0040.01514.98
7.2.210.0030.01215.32
7.2.200.0000.01615.00
7.2.190.0090.00614.86
7.2.180.0160.00014.89
7.2.170.0110.00715.26
7.2.160.0040.01414.81
7.2.150.0090.00616.71
7.2.140.0070.01017.13
7.2.130.0120.00716.82
7.2.120.0110.00716.90
7.2.110.0120.00716.84
7.2.100.0110.00816.92
7.2.90.0110.01116.95
7.2.80.0120.00816.89
7.2.70.0120.00716.82
7.2.60.0080.00817.00
7.2.50.0130.01117.11
7.2.40.0120.00416.90
7.2.30.0100.01016.74
7.2.20.0100.00716.86
7.2.10.0110.00716.68
7.2.00.0030.01217.81
7.1.330.0170.00015.71
7.1.320.0030.01015.56
7.1.310.0130.00316.11
7.1.300.0100.00015.57
7.1.290.0030.00815.96
7.1.280.0060.00915.90
7.1.270.0000.01715.75
7.1.260.0040.00716.20
7.1.250.0080.01015.71
7.1.100.0030.00818.18
7.1.70.0040.00817.22
7.1.60.0100.01019.21
7.1.50.0130.00716.99
7.1.00.0000.06322.36
7.0.200.0230.00315.11
7.0.140.0130.06722.00
7.0.60.0030.04319.84
7.0.50.0070.06017.84
7.0.40.0100.07720.05
7.0.30.0200.05020.19
7.0.20.0430.05320.00
7.0.10.0130.04320.20
7.0.00.0170.07719.99
5.6.280.0030.07321.09
5.6.210.0170.05720.45
5.6.200.0000.04318.22
5.6.190.0070.09020.40
5.6.180.0270.07320.34
5.6.170.0300.06320.52
5.6.160.0100.03320.38
5.6.150.0130.07718.22
5.6.140.0070.08018.11
5.6.130.0030.07718.07
5.6.120.0000.06321.12
5.6.110.0070.06721.14
5.6.100.0070.06720.97
5.6.90.0100.08020.99
5.6.80.0070.06720.38
5.6.70.0130.03020.51
5.5.350.0070.07720.40
5.5.340.0030.08318.02
5.5.330.0070.04320.27
5.5.320.0330.05320.30
5.5.310.0300.08020.41
5.5.300.0100.07317.91
5.5.290.0070.04317.96
5.5.280.0000.08020.64
5.5.270.0170.07720.76
5.5.260.0070.04320.86
5.5.250.0070.08320.77
5.5.240.0100.08320.20
5.4.450.0830.06019.29
5.4.440.0770.06319.47
5.4.430.0700.07019.60
5.4.420.0700.05719.41
5.4.410.0030.06018.97
5.4.400.0400.04718.64
5.4.390.0400.05318.66
5.4.380.0270.06018.55
5.4.370.0170.05018.48
5.4.360.0200.04318.66
5.4.350.0060.04011.97
5.4.340.0060.03711.98
5.4.320.0060.03612.46
5.4.310.0080.04412.45
5.4.300.0060.03712.45
5.4.290.0090.03612.45
5.4.280.0040.03712.35
5.4.270.0070.05212.35
5.4.260.0040.03912.35
5.4.250.0170.06718.64
5.4.240.0100.06318.86
5.4.230.0030.05719.00
5.4.220.0200.04718.68
5.4.210.0230.04318.68
5.4.200.0030.06018.98
5.4.190.0000.06018.86
5.4.180.0030.07718.92
5.4.170.0030.08718.87
5.4.160.0100.05318.87
5.4.150.0000.06318.67
5.4.140.0070.05316.50
5.4.130.0070.05716.50
5.4.120.0170.05016.48
5.4.110.0200.04316.44
5.4.100.0100.05016.29
5.4.90.0200.05716.48
5.4.80.0070.06016.40
5.4.70.0200.06016.32
5.4.60.0130.04316.41
5.4.50.0130.04716.45
5.4.40.0070.05316.36
5.4.30.0000.05716.21
5.4.20.0030.05316.38
5.4.10.0130.05016.48
5.4.00.0030.05315.70
5.3.290.0050.03912.80
5.3.280.0130.05714.61
5.3.270.0170.07014.62
5.3.260.0070.06314.30
5.3.250.0000.06714.65
5.3.240.0030.08014.30
5.3.230.0000.08014.61
5.3.220.0100.06714.34
5.3.210.0100.05714.58
5.3.200.0100.04314.57
5.3.190.0130.05314.27
5.3.180.0170.04714.25
5.3.170.0070.05314.45
5.3.160.0100.05014.40
5.3.150.0100.05714.33
5.3.140.0130.04314.32
5.3.130.0130.05014.41
5.3.120.0100.05714.39
5.3.110.0070.07714.41
5.3.100.0100.05313.91
5.3.90.0030.06014.06
5.3.80.0000.06013.95
5.3.70.0100.05714.04
5.3.60.0100.06713.91
5.3.50.0170.04013.83
5.3.40.0000.06013.78
5.3.30.0070.07013.61
5.3.20.0070.06713.39
5.3.10.0070.05013.50
5.3.00.0170.06313.68
5.2.170.0100.05710.98
5.2.160.0030.04311.13
5.2.150.0000.05011.30
5.2.140.0070.04311.29
5.2.130.0070.04011.09
5.2.120.0070.04710.99
5.2.110.0130.03311.05
5.2.100.0070.06011.12
5.2.90.0070.04711.19
5.2.80.0100.03710.98
5.2.70.0070.04011.09
5.2.60.0200.04710.98
5.2.50.0070.05010.95
5.2.40.0070.04310.99
5.2.30.0070.04311.13
5.2.20.0000.06010.98
5.2.10.0100.04710.76
5.2.00.0130.03710.82
5.1.60.0100.04010.03
5.1.50.0030.03710.03
5.1.40.0070.03310.07
5.1.30.0070.03710.39
5.1.20.0000.04010.35
5.1.10.0130.0279.96
5.1.00.0070.0379.95
5.0.50.0030.0408.44
5.0.40.0000.0308.18
5.0.30.0070.0408.18
5.0.20.0030.0308.24
5.0.10.0000.0438.40
5.0.00.0000.0478.35
4.4.90.0100.0177.40
4.4.80.0030.0337.40
4.4.70.0000.0237.40
4.4.60.0030.0207.40
4.4.50.0070.0177.40
4.4.40.0030.0337.40
4.4.30.0000.0237.40
4.4.20.0030.0207.40
4.4.10.0070.0237.40
4.4.00.0000.0377.40
4.3.110.0030.0237.40
4.3.100.0030.0207.40
4.3.90.0030.0207.40
4.3.80.0100.0337.40
4.3.70.0100.0137.40
4.3.60.0070.0177.40
4.3.50.0100.0237.40
4.3.40.0000.0407.40
4.3.30.0070.0277.40
4.3.20.0000.0237.40
4.3.10.0070.0177.40
4.3.00.0100.0236.51

preferences:
64.14 ms | 401 KiB | 5 Q