PHP Chinese support function php Chinese intercept string function php Chinese string flip

Source: Internet
Author: User
  1. /**
  2. * Converts a string containing full-width numeric characters, letters, spaces, or '%+-() ' characters to corresponding half-width characters
  3. *
  4. * @access Public
  5. * @param string $str the string to be converted
  6. *
  7. * @return string $STR processed strings
  8. */
  9. function Make_semiangle ($STR)
  10. {
  11. $arr = Array (' 0 ' = ' 0 ', ' 1 ' = ' 1 ', ' 2 ' = ' 2 ', ' 3 ' = ' 3 ', ' 4 ' = ' 4 ',
  12. ' 5 ' = ' 5 ', ' 6 ' = ' 6 ', ' 7 ' = ' 7 ', ' 8 ' = ' 8 ', ' 9 ' = ' 9 ',
  13. ' A ' = ' a ', ' B ' = ' B ', ' c ' = ' C ', ' d ' and '-d ', ' e ' = ' e ',
  14. ' F ' = ' f ', ' g ' = ' g ', ' h ' = = ' h ', ' i ' = ' I ', ' j ' = ' j ',
  15. ' k ' = ' k ', ' l ' = ' + ', ' m ' = = ' m ', ' n ' = ' n ', ' o ' = ' ' O ',
  16. ' P ' = ' P ', ' q ' + = ' q ', ' r ' = = ' R ', ' s ' = + ' s ', ' t ' = ' t ',
  17. ' U ' = ' ' u ', ' v ' = ' = ' V ', ' w ' = = ' W ', ' x ' = ' x ', ' y ' = ' y ',
  18. ' Z ' + ' z ', ' a ' = ' = ' A ', ' B ' = ' B ', ' c ' = ' C ', ' d ' = = ' d ',
  19. ' E ' = ' e ', ' f ' = ' f ', ' g ' = ' = ' g ', ' h ' = ' h ', ' i ' = = ' I ',
  20. ' J ' = ' j ', ' k ' = ' k ', ' l ' = ' = ', ' and ' = ', ' m ' + ' m ', ' n ' = ' n ',
  21. ' O ' = ' ' o ', ' p ' = ' P ', ' q ' = ' Q ', ' r ' = = ' R ', ' s ' = ' and ' s ',
  22. ' t ' = ' t ', ' u ' = ' = ' u ', ' v ' = ' = ' V ', ' w ' = ' W ', ' x ' = ' x ',
  23. ' Y ' = ' y ', ' z ' = ' z ',
  24. ' (' = ' = ' (') ' + ') ', ' (' = ' = ' [', ') ' + '] ', ' ' ' + ', ' [',
  25. ' ' ' = ' and ' ', ' ' = ' = ' [', ' ' ' ' = '] ', ' ' ' ' ' = ' [', ' ' '
  26. ' = ' + ' [', ' ' + '] ', ' {' = ' = ', '} ' = '} ', ' ' = ' < ',
  27. ' ' = ' > ',
  28. '% ' = '% ', ' + ' = ' + ', '-' = '-', '-' = '-', ' ~ ' = '-',
  29. ': ' = ': ', '. ' = = ', ', ', ' = = ', ', ', ' = ', ', ', ' = ', '
  30. '; ' = ', ', '? ' = = '? ', '! ' + '! ', ' ... ' + '-', ' ‖ ' = ' | ',
  31. ' ' ' = ' ', ' ' ' and ' ', ' ' and ' ', ' ' and ' ', ' | '
  32. ' = ' + ', ' $ ' + ' $ ', ' @ ' + ' @ ', ' # ' + ' # ', ' ^ ' + ' ^ ', ' & ' + ' & ', ' * ' = ' * ';
  33. Return Strtr ($str, $arr);
  34. }
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Example 2,php Chinese intercept string

  1. /*
  2. Chinese character interception function supported by Utf-8 and gb2312
  3. Cut_str (string, intercept length, start length, encode);
  4. encoding defaults to Utf-8
  5. Start length defaults to 0
  6. * edit:bbs.it-home.org
  7. */
  8. function Cut_str ($string, $sublen, $start = 0, $code = ' UTF-8 ') {
  9. if ($code = = ' UTF-8 ') {
  10. $pa = "/[\x01-\x7f]| [\XC2-\XDF] [\x80-\xbf]|\xe0[\xa0-\xbf][\x80-\xbf]| [\xe1-\xef] [\X80-\XBF] [\x80-\xbf]|\xf0[\x90-\xbf][\x80-\xbf][\x80-\xbf]| [\xf1-\xf7] [\X80-\XBF] [\X80-\XBF] [\x80-\xbf]/];
  11. Preg_match_all ($pa, $string, $t _string);
  12. if (count ($t _string [0])-$start > $sublen)
  13. return join (' ', Array_slice ($t _string [0], $start, $sublen)). "...";
  14. return join (' ', Array_slice ($t _string [0], $start, $sublen));
  15. } else {
  16. $start = $start * 2;
  17. $sublen = $sublen * 2;
  18. $strlen = strlen ($string);
  19. $tmpstr = ";
  20. for ($i = 0; $i < $strlen; $i + +) {
  21. if ($i >= $start && $i < ($start + $sublen)) {
  22. if (Ord (substr ($string, $i, 1)) > 129) {
  23. $tmpstr. = substr ($string, $i, 2);
  24. } else {
  25. $tmpstr. = substr ($string, $i, 1);
  26. }
  27. }
  28. if (Ord (substr ($string, $i, 1)) > 129)
  29. $i + +;
  30. }
  31. if (strlen ($TMPSTR) < $strlen)
  32. $tmpstr. = "...";
  33. return $tmpstr;
  34. }
  35. }
  36. $str = "ABCD string to intercept";
  37. Echo Cut_str ($str, 1, 0, ' gb2312 ');
  38. ?>
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Example 3, the loading of a string

  1. /**
  2. * Character interception support UTF8/GBK
  3. * @param $string
  4. * @param $length
  5. * @param $dot
  6. */
  7. function Str_cut ($string, $length, $charset = ' utf-8 ', $dot = ' ... ') {
  8. $strlen = strlen ($string);
  9. if ($strlen <= $length) return $string;
  10. $string = Str_replace (', ', ' & ', ' ' ', ' ' ', ' ' ', ' ' ' ', '-', ' < ', ' > ', ' * ', ' ... '), Array (' ∵ ', ', ' & ', ' ' ', ' ' ', ' ' ', ' ' ', '-', ' < ', ' > ', ' ' ', ' ' ... '), $string);
  11. $strcut = ";
  12. if (Strtolower ($charset) = = ' Utf-8 ') {
  13. $length = Intval ($length-strlen ($DOT)-$length/3);
  14. $n = $tn = $noc = 0;
  15. while ($n < strlen ($string)) {
  16. $t = Ord ($string [$n]);
  17. if ($t = = 9 | | $t = = 10 | | (<= $t && $t <= 126)) {
  18. $tn = 1; $n + +; $noc + +;
  19. } elseif (194 <= $t && $t <= 223) {
  20. $tn = 2; $n + = 2; $noc + = 2;
  21. } elseif (224 <= $t && $t <= 239) {
  22. $tn = 3; $n + = 3; $noc + = 2;
  23. } elseif (<= $t && $t <= 247) {
  24. $tn = 4; $n + = 4; $noc + = 2;
  25. } elseif (248 <= $t && $t <= 251) {
  26. $tn = 5; $n + = 5; $noc + = 2;
  27. } elseif ($t = = 252 | | $t = = 253) {
  28. $tn = 6; $n + = 6; $noc + = 2;
  29. } else {
  30. $n + +;
  31. }
  32. if ($noc >= $length) {
  33. Break
  34. }
  35. }
  36. if ($noc > $length) {
  37. $n-= $tn;
  38. }
  39. $strcut = substr ($string, 0, $n);
  40. $strcut = Str_replace (' ∵ ', ' & ', ' ' ', ' ' ', ' ' ', ' ' ', '-', ' < ', ' > ', ' * ', ' ... '), Array (', ' & ', ' "', ') , ' ' ', ' ' ' ', '-', ' < ', ' > ', ' ' ', ' ... '), $strcut);
  41. } else {
  42. $dotlen = strlen ($dot);
  43. $maxi = $length-$dotlen-1;
  44. $current _str = ";
  45. $search _arr = Array (' & ', ' ', ' ' ', ' ' ', ' ' ', ' ' ', '-', ' < ', ' > ', ' * ', ' ... ', ' ∵ ');
  46. $replace _arr = Array (' & ', ' ', ' ' ', ' ' ', ' ' ', ' ' ', '-', ' < ', ' > ', ' * ', ' ... ', ');
  47. $search _flip = Array_flip ($search _arr);
  48. for ($i = 0; $i < $maxi; $i + +) {
  49. $current _str = Ord ($string [$i]) > 127? $string [$i]. $string [+ + $i]: $string [$i];
  50. if (In_array ($current _str, $search _arr)) {
  51. $key = $search _flip[$current _str];
  52. $current _str = str_replace ($search _arr[$key], $replace _arr[$key], $current _str);
  53. }
  54. $strcut. = $current _str;
  55. }
  56. }
  57. return $strcut. $dot;
  58. }
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Example 4,php Chinese string Flip Flip a string you can use the Strrev () function. However, sometimes it is necessary to deal with the string is a Chinese language, so the use of Strrev will appear garbled. Here you can customize a function to handle characters that contain Chinese.

    1. /**

    2. * Chinese string flipping
    3. * by bbs.it-home.org
    4. */
    5. function Cstrrev ($STR)
    6. {
    7. $len = strlen ($STR);
    8. for ($i = 0; $i < $len; $i + +)
    9. {
    10. $char = $str {0};
    11. if (ord ($char) > 127)
    12. {
    13. $i + +;
    14. if ($i < $len)
    15. {
    16. $arr [] = substr ($str, 0, 2);
    17. $str = substr ($str, 2);
    18. }
    19. }
    20. Else
    21. {
    22. $arr [] = $char;
    23. $str = substr ($str, 1);
    24. }
    25. }
    26. return Join (Array_reverse ($arr));
    27. }

    28. #使用方法:

    29. $str = ' Chinese. look! ';
    30. echo Cstrrev ($STR);
    31. #结果输出:!kool. In the text
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Attached 5,

  1. function Str_replace_cn ($needle, $str, $haystack, $charset = "Utf-8") {
  2. $re [' utf-8 '] = "/[\x01-\x7f]| [\XC2-\XDF] [\x80-\xbf]| [\xe0-\xef] [\X80-\XBF] {2}| [\xf0-\xff] [\X80-\XBF] {3}/";
  3. $re [' gb2312 '] = "/[\x01-\x7f]| [\xb0-\xf7] [\xa0-\xfe]/];
  4. $re [' gbk '] = "/[\x01-\x7f]| [\x81-\xfe] [\x40-\xfe]/];
  5. $re [' big5 '] = "/[\x01-\x7f]| [\x81-\xfe] ([\x40-\x7e]|\xa1-\xfe]) /";
  6. Preg_match_all ($re [$charset], $haystack, $match _haystack);
  7. Preg_match_all ($re [$charset], $needle, $match _needle);
  8. for ($i = 0; $i < count ($match _needle); $i + +) {
  9. if (!in_array ($match _needle[0][$i], $match _haystack[0])) return $haystack;//No match
  10. }
  11. $match _haystack = $match _haystack[0];
  12. $match _needle = $match _needle[0];
  13. for ($i = 0; $i < count ($match _haystack); $i + +) {
  14. if ($match _haystack[$i] = = "") continue;
  15. if ($match _haystack[$i] = = $match _needle[0]) {
  16. if (count ($match _needle) = = 1) {//if only one character
  17. $match _haystack[$i] = $str;
  18. }else{
  19. $flag = true;
  20. for ($j = 1; $j < count ($match _needle); $j + +) {
  21. if ($match _haystack[$i + $j]! = $match _needle[$j]) {
  22. $flag = false;
  23. Break
  24. }
  25. }
  26. if ($flag) {//Match
  27. $match _haystack[$i] = $str;
  28. for ($j = 1; $j < count ($match _needle); $j + +) {
  29. $match _haystack[$i + $j] = "";
  30. }
  31. }
  32. }
  33. }
  34. }
  35. Return implode ("", $match _haystack);
  36. }
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