3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = 'qтест12qq'; $str_win = iconv('utf-8', 'cp1251//IGNORE', $str); echo mb_detect_encoding($str, 'CP1251, UTF-8'); echo mb_detect_encoding($str_win, 'CP1251, UTF-8'); echo utf8_to_cp1251($str); echo utf8_to_cp1251($str_win); function utf8_to_cp1251($s) { global $unicode_to_cp1251_tbl; $tbl = $unicode_to_cp1251_tbl; $uc = 0; $bits = 0; $r = ""; for($i = 0, $l = strlen($s); $i < $l; $i++) { $c = $s{$i}; $b = ord($c); if($b & 0x80) { if($b & 0x40) { if($b & 0x20) { $uc = ($b & 0x0F) << 12; $bits = 12; } else { $uc = ($b & 0x1F) << 6; $bits = 6; } } else { $bits -= 6; if($bits) { $uc |= ($b & 0x3F) << $bits; } else { $uc |= $b & 0x3F; if($cc = @$tbl[$uc]) { $r .= $cc; } else { $r .= '?'; } } } } else { $r .= $c; } } return $r; } $unicode_to_cp1251_tbl = array( 0x0402 => "\x80", 0x0403 => "\x81", 0x201A => "\x82", 0x0453 => "\x83", 0x201E => "\x84", 0x2026 => "\x85", 0x2020 => "\x86", 0x2021 => "\x87", 0x20AC => "\x88", 0x2030 => "\x89", 0x0409 => "\x8A", 0x2039 => "\x8B", 0x040A => "\x8C", 0x040C => "\x8D", 0x040B => "\x8E", 0x040F => "\x8F", 0x0452 => "\x90", 0x2018 => "\x91", 0x2019 => "\x92", 0x201C => "\x93", 0x201D => "\x94", 0x2022 => "\x95", 0x2013 => "\x96", 0x2014 => "\x97", 0x2122 => "\x99", 0x0459 => "\x9A", 0x203A => "\x9B", 0x045A => "\x9C", 0x045C => "\x9D", 0x045B => "\x9E", 0x045F => "\x9F", 0x00A0 => "\xA0", 0x040E => "\xA1", 0x045E => "\xA2", 0x0408 => "\xA3", 0x00A4 => "\xA4", 0x0490 => "\xA5", 0x00A6 => "\xA6", 0x00A7 => "\xA7", 0x0401 => "\xA8", 0x00A9 => "\xA9", 0x0404 => "\xAA", 0x00AB => "\xAB", 0x00AC => "\xAC", 0x00AD => "\xAD", 0x00AE => "\xAE", 0x0407 => "\xAF", 0x00B0 => "\xB0", 0x00B1 => "\xB1", 0x0406 => "\xB2", 0x0456 => "\xB3", 0x0491 => "\xB4", 0x00B5 => "\xB5", 0x00B6 => "\xB6", 0x00B7 => "\xB7", 0x0451 => "\xB8", 0x2116 => "\xB9", 0x0454 => "\xBA", 0x00BB => "\xBB", 0x0458 => "\xBC", 0x0405 => "\xBD", 0x0455 => "\xBE", 0x0457 => "\xBF", 0x0410 => "\xC0", 0x0411 => "\xC1", 0x0412 => "\xC2", 0x0413 => "\xC3", 0x0414 => "\xC4", 0x0415 => "\xC5", 0x0416 => "\xC6", 0x0417 => "\xC7", 0x0418 => "\xC8", 0x0419 => "\xC9", 0x041A => "\xCA", 0x041B => "\xCB", 0x041C => "\xCC", 0x041D => "\xCD", 0x041E => "\xCE", 0x041F => "\xCF", 0x0420 => "\xD0", 0x0421 => "\xD1", 0x0422 => "\xD2", 0x0423 => "\xD3", 0x0424 => "\xD4", 0x0425 => "\xD5", 0x0426 => "\xD6", 0x0427 => "\xD7", 0x0428 => "\xD8", 0x0429 => "\xD9", 0x042A => "\xDA", 0x042B => "\xDB", 0x042C => "\xDC", 0x042D => "\xDD", 0x042E => "\xDE", 0x042F => "\xDF", 0x0430 => "\xE0", 0x0431 => "\xE1", 0x0432 => "\xE2", 0x0433 => "\xE3", 0x0434 => "\xE4", 0x0435 => "\xE5", 0x0436 => "\xE6", 0x0437 => "\xE7", 0x0438 => "\xE8", 0x0439 => "\xE9", 0x043A => "\xEA", 0x043B => "\xEB", 0x043C => "\xEC", 0x043D => "\xED", 0x043E => "\xEE", 0x043F => "\xEF", 0x0440 => "\xF0", 0x0441 => "\xF1", 0x0442 => "\xF2", 0x0443 => "\xF3", 0x0444 => "\xF4", 0x0445 => "\xF5", 0x0446 => "\xF6", 0x0447 => "\xF7", 0x0448 => "\xF8", 0x0449 => "\xF9", 0x044A => "\xFA", 0x044B => "\xFB", 0x044C => "\xFC", 0x044D => "\xFD", 0x044E => "\xFE", 0x044F => "\xFF", );

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)
8.3.70.0060.00918.30
8.3.60.0070.01418.43
8.3.50.0090.00622.06
8.3.40.0110.00718.71
8.3.30.0110.00319.04
8.3.20.0040.00420.38
8.3.10.0080.00022.09
8.3.00.0040.00422.52
8.2.180.0120.00916.88
8.2.170.0000.01522.96
8.2.160.0120.00320.71
8.2.150.0000.00824.18
8.2.140.0070.00324.66
8.2.130.0050.00326.16
8.2.120.0090.00019.38
8.2.110.0060.00320.53
8.2.100.0120.00517.78
8.2.90.0040.00418.92
8.2.80.0040.00419.54
8.2.70.0000.00817.50
8.2.60.0070.00017.80
8.2.50.0070.00318.07
8.2.40.0000.00718.09
8.2.30.0040.00417.94
8.2.20.0000.00817.54
8.2.10.0050.00317.49
8.2.00.0040.00417.57
8.1.280.0140.00325.92
8.1.270.0060.00323.97
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0150.00623.76
8.1.230.0070.00323.90
8.1.220.0050.00317.74
8.1.210.0040.00418.77
8.1.200.0030.00717.10
8.1.190.0040.00417.41
8.1.180.0030.00618.10
8.1.170.0080.00018.50
8.1.160.0040.00421.92
8.1.150.0040.00418.53
8.1.140.0040.00417.37
8.1.130.0070.00017.65
8.1.120.0040.00417.31
8.1.110.0000.00717.33
8.1.100.0000.00817.32
8.1.90.0000.00717.28
8.1.80.0000.00717.33
8.1.70.0070.00017.36
8.1.60.0030.00517.36
8.1.50.0040.00417.33
8.1.40.0040.00417.28
8.1.30.0000.00817.54
8.1.20.0000.00817.43
8.1.10.0000.00817.40
8.1.00.0040.00417.34
8.0.300.0000.00718.77
8.0.290.0000.00717.05
8.0.280.0040.00418.38
8.0.270.0000.00817.09
8.0.260.0030.00316.77
8.0.250.0040.00416.91
8.0.240.0060.00316.92
8.0.230.0000.00716.84
8.0.220.0050.00316.73
8.0.210.0030.00316.74
8.0.200.0060.00016.79
8.0.190.0000.00716.89
8.0.180.0000.00816.86
8.0.170.0020.00516.75
8.0.160.0040.00416.84
8.0.150.0040.00416.77
8.0.140.0050.00216.63
8.0.130.0050.00013.29
8.0.120.0050.00316.78
8.0.110.0050.00316.82
8.0.100.0000.00716.81
8.0.90.0040.00416.66
8.0.80.0040.01216.82
8.0.70.0050.00216.74
8.0.60.0070.00016.82
8.0.50.0020.00516.78
8.0.30.0070.01216.92
8.0.20.0120.00817.40
8.0.10.0030.00316.86
8.0.00.0060.01716.72
7.4.330.0020.00215.00
7.4.320.0030.00316.66
7.4.300.0000.00716.65
7.4.290.0040.00416.74
7.4.280.0000.00816.77
7.4.270.0050.00216.55
7.4.260.0000.01016.72
7.4.250.0030.00616.77
7.4.240.0090.00016.88
7.4.230.0050.00316.63
7.4.220.0090.01817.01
7.4.210.0040.01516.90
7.4.200.0040.00417.03
7.4.190.0030.00516.96
7.4.160.0090.00916.96
7.4.150.0100.01017.40
7.4.140.0130.00817.86
7.4.130.0130.00616.82
7.4.120.0140.00616.87
7.4.110.0030.01616.88
7.4.100.0100.01316.69
7.4.90.0070.01316.86
7.4.80.0100.01519.39
7.4.70.0130.00616.62
7.4.60.0170.00416.72
7.4.50.0070.00716.70
7.4.40.0080.01119.80
7.4.30.0140.00916.75
7.4.20.0180.00016.27
7.4.10.0030.01616.61
7.4.00.0060.01416.09
7.3.330.0000.00513.28
7.3.320.0050.00013.33
7.3.310.0040.00816.78
7.3.300.0030.00616.54
7.3.290.0060.01216.70
7.3.280.0050.01216.63
7.3.270.0140.00717.40
7.3.260.0100.01017.04
7.3.250.0130.01016.81
7.3.240.0080.01216.83
7.3.230.0070.01116.81
7.3.210.0050.01416.75
7.3.200.0060.01616.71
7.3.190.0100.01016.79
7.3.180.0070.01416.64
7.3.170.0070.01416.77
7.3.160.0090.01016.68
7.3.150.0030.01616.55
7.3.140.0160.00417.01
7.3.130.0050.01416.75
7.3.120.0020.01815.98
7.3.110.0190.02116.87
7.3.100.0100.01316.64
7.3.90.0100.01016.66
7.3.80.0000.02116.45
7.3.70.0100.01316.61
7.3.60.0180.00616.63
7.3.50.0200.00916.77
7.3.40.0110.01116.72
7.3.30.0190.00416.64
7.3.20.0080.01116.67
7.3.10.0200.00316.60
7.3.00.0390.01316.69
7.2.330.0110.01117.20
7.2.320.0100.01317.12
7.2.310.0040.01416.86
7.2.300.0130.00917.15
7.2.290.0080.01616.89
7.2.280.0110.01017.02
7.2.270.0140.00816.69
7.2.260.0120.00816.85
7.2.250.0090.01817.02
7.2.240.0090.01216.80
7.2.230.0140.01116.95
7.2.220.0140.01416.82
7.2.210.0060.01717.07
7.2.200.0150.01517.04
7.2.190.0140.00617.04
7.2.180.0200.00316.92
7.2.170.0060.01916.96
7.2.160.0170.00717.02
7.2.150.0130.00716.91
7.2.140.0050.01416.95
7.2.130.0130.01416.88
7.2.120.0070.01616.75
7.2.110.0120.01316.97
7.2.100.0070.01416.90
7.2.90.0160.00816.95
7.2.80.0130.00916.84
7.2.70.0190.00717.02
7.2.60.0090.01316.83
7.2.50.0160.01116.83
7.2.40.0160.00716.79
7.2.30.0070.01516.63
7.2.20.0100.01416.84
7.2.10.0160.01016.80
7.2.00.0110.01417.99
7.1.330.1330.00916.11
7.1.320.0340.00515.90
7.1.310.0230.01216.05
7.1.300.0230.01416.06
7.1.290.0270.00916.18
7.1.280.1050.00716.26
7.1.270.0280.01116.09
7.1.260.0210.01015.89
7.1.250.0230.00415.91
7.1.240.0230.01315.92
7.1.230.0290.00715.78
7.1.220.1850.00915.89
7.1.210.0190.01315.94
7.1.200.0160.00815.91
7.1.190.0300.00516.01
7.1.180.0290.01015.81
7.1.170.0260.01315.77
7.1.160.0170.01716.10
7.1.150.0270.00715.90
7.1.140.0250.01016.11
7.1.130.0400.02015.91
7.1.120.0180.01216.16
7.1.110.0240.01015.97
7.1.100.0100.01717.12
7.1.90.0200.01216.02
7.1.80.0240.00915.98
7.1.70.0140.00916.76
7.1.60.0130.01717.98
7.1.50.0110.01016.59
7.1.40.0280.00315.92
7.1.30.0650.00315.95
7.1.20.0230.01216.03
7.1.10.0560.01315.99
7.1.00.0140.04619.27
7.0.330.0110.02115.80
7.0.320.0220.00815.66
7.0.310.0300.01015.75
7.0.300.0240.01215.32
7.0.290.0190.01015.53
7.0.280.0240.00815.66
7.0.270.0210.01515.59
7.0.260.0190.01315.66
7.0.250.0250.00815.83
7.0.240.0200.01315.70
7.0.230.0270.00415.79
7.0.220.0210.00915.64
7.0.210.0190.01215.55
7.0.200.0140.00716.34
7.0.190.0220.00615.68
7.0.180.0200.01215.81
7.0.170.0290.00915.68
7.0.160.0130.01615.66
7.0.150.0180.01115.61
7.0.140.0110.04218.96
7.0.130.0220.00915.63
7.0.120.0240.01015.51
7.0.110.0230.00815.63
7.0.100.0170.01215.84
7.0.90.0210.00715.48
7.0.80.0130.01715.78
7.0.70.0170.01715.77
7.0.60.0150.03717.78
7.0.50.0130.03916.80
7.0.40.0110.03617.96
7.0.30.0300.02817.95
7.0.20.0260.04218.05
7.0.10.0200.04717.90
7.0.00.0140.04817.93
5.6.400.0110.01916.43
5.6.390.0160.01616.32
5.6.380.0140.01816.14
5.6.370.0300.01116.42
5.6.360.0230.01216.43
5.6.350.0210.01116.34
5.6.340.0260.01016.55
5.6.330.0240.01716.22
5.6.320.0270.00716.56
5.6.310.0170.02016.49
5.6.300.0230.01216.23
5.6.290.0220.01316.62
5.6.280.0120.04318.77
5.6.270.0250.00616.38
5.6.260.0100.02216.50
5.6.250.0180.01416.54
5.6.240.0150.01816.28
5.6.230.0190.01116.63
5.6.220.0200.01616.57
5.6.210.0110.05318.51
5.6.200.0140.05117.37
5.6.190.0210.03618.44
5.6.180.1490.02418.50
5.6.170.0230.04118.56
5.6.160.0140.03218.50
5.6.150.0140.03817.45
5.6.140.0180.03217.31
5.6.130.0130.02417.42
5.6.120.0180.02518.80
5.6.110.0160.04918.73
5.6.100.0140.04818.70
5.6.90.0130.04718.73
5.6.80.0180.04418.54
5.6.70.2390.02418.46
5.6.60.0170.01216.22
5.6.50.0220.00616.27
5.6.40.0200.01016.19
5.6.30.0270.00816.14
5.6.20.0240.00816.19
5.6.10.0170.01416.36
5.6.00.0140.00816.12
5.5.380.0190.01916.30
5.5.370.0210.01316.20
5.5.360.0140.01816.10
5.5.350.0210.04018.40
5.5.340.0200.04717.30
5.5.330.0200.02318.32
5.5.320.0300.03818.33
5.5.310.0200.03318.47
5.5.300.0100.03017.22
5.5.290.0170.04317.22
5.5.280.0170.05018.76
5.5.270.0130.02518.58
5.5.260.0220.03818.59
5.5.250.0140.04318.59
5.5.240.0140.03218.35
5.5.230.0190.01116.35
5.5.220.0140.01816.34
5.5.210.0190.01316.21
5.5.200.0080.02416.32
5.5.190.0150.01516.23
5.5.180.0240.00916.21
5.5.170.0120.01216.02
5.5.160.0190.01216.23
5.5.150.0220.00816.32
5.5.140.0140.01816.40
5.5.130.0190.00816.11
5.5.120.0200.01016.11
5.5.110.0240.00816.11
5.5.100.0190.01116.10
5.5.90.0200.01616.32
5.5.80.0270.01216.33
5.5.70.0310.00916.03
5.5.60.0150.02316.24
5.5.50.0260.01416.35
5.5.40.0210.01316.41
5.5.30.0240.01416.12
5.5.20.0170.01316.21
5.5.10.0290.00316.45
5.5.00.0210.00916.19
5.4.450.0770.02416.04
5.4.440.1070.02416.23
5.4.430.0900.02616.00
5.4.420.0060.03016.14
5.4.410.0080.02816.07
5.4.400.0360.02115.98
5.4.390.0170.02415.81
5.4.380.0190.02215.76
5.4.370.0170.02315.84
5.4.360.0260.02115.91
5.4.350.0210.02116.04
5.4.340.0190.02415.95
5.4.330.0070.01012.54
5.4.320.0200.02215.97
5.4.310.0150.02515.99
5.4.300.0190.02315.98
5.4.290.0200.02316.11
5.4.280.0160.02615.81
5.4.270.0210.01915.81
5.4.260.0190.02116.05
5.4.250.0170.02715.93
5.4.240.0140.02815.95
5.4.230.0170.02415.85
5.4.220.0300.01915.79
5.4.210.0260.02516.04
5.4.200.0170.02515.91
5.4.190.0270.01915.94
5.4.180.0160.02415.90
5.4.170.0180.02615.88
5.4.160.0220.02015.92
5.4.150.0240.02515.80
5.4.140.0190.02314.55
5.4.130.0190.01914.66
5.4.120.0150.02914.64
5.4.110.0280.01814.55
5.4.100.0170.02214.75
5.4.90.0150.02514.58
5.4.80.0190.02214.62
5.4.70.0190.01914.68
5.4.60.0120.02114.56
5.4.50.0190.01814.60
5.4.40.0180.01914.67
5.4.30.0170.02014.64
5.4.20.0180.02114.68
5.4.10.0150.02814.63
5.4.00.0140.02214.26
5.3.290.0140.02714.26
5.3.280.0180.02414.01
5.3.270.0190.02814.04
5.3.260.0140.02614.28
5.3.250.0160.02314.05
5.3.240.0150.02314.03
5.3.230.0120.02614.08
5.3.220.0220.02614.02
5.3.210.0180.02313.98
5.3.200.0170.02213.96
5.3.190.0170.02414.15
5.3.180.0150.02514.08
5.3.170.0220.01814.14
5.3.160.0180.02314.09
5.3.150.0160.02414.18
5.3.140.0210.02314.07
5.3.130.0150.02414.09
5.3.120.0130.03114.07
5.3.110.0150.03114.11
5.3.100.0110.02813.80
5.3.90.0140.02813.75
5.3.80.0140.02513.64
5.3.70.0180.02713.74
5.3.60.0130.02613.87
5.3.50.0160.02313.69
5.3.40.0160.02413.68
5.3.30.0170.02113.68
5.3.20.0160.02113.64
5.3.10.0100.04213.43
5.3.00.0130.03013.48
5.2.170.0140.02511.91
5.2.160.0110.02011.94
5.2.150.0110.02912.02
5.2.140.0140.01811.82
5.2.130.0130.03011.96
5.2.120.0150.01911.98
5.2.110.0110.02211.90
5.2.100.0120.01812.01
5.2.90.0150.02011.83
5.2.80.0120.02311.94
5.2.70.0120.02711.81
5.2.60.0160.01711.89
5.2.50.0170.01811.84
5.2.40.0140.01811.71
5.2.30.0120.03211.74
5.2.20.0130.01811.76
5.2.10.0150.02311.58
5.2.00.0130.01711.61
5.1.60.0130.01511.10
5.1.50.0120.01711.02
5.1.40.0090.01911.13
5.1.30.0090.02011.21
5.1.20.0130.02711.27
5.1.10.0090.02011.09
5.1.00.0110.02011.07
5.0.50.0120.01010.30
5.0.40.0100.01510.34
5.0.30.0070.03410.18
5.0.20.0080.01510.23
5.0.10.0070.01410.22
5.0.00.0080.02210.18
4.4.90.0030.0139.94
4.4.80.0070.0089.94
4.4.70.0050.0109.94
4.4.60.0070.0179.94
4.4.50.0020.0129.94
4.4.40.0040.0179.94
4.4.30.0060.0119.94
4.4.20.0030.0119.94
4.4.10.0020.0129.94
4.4.00.0060.0129.94
4.3.110.0060.0079.94
4.3.100.0030.0089.94
4.3.90.0030.0109.94
4.3.80.0080.0109.94
4.3.70.0140.0099.94
4.3.60.0420.0089.94
4.3.50.0410.0109.94
4.3.40.0410.0139.94
4.3.30.0240.0079.94
4.3.20.0250.0079.94
4.3.10.0220.0119.94
4.3.00.0210.0099.94

preferences:
63.78 ms | 401 KiB | 5 Q