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

/** * Converts a string containing full-width numeric characters, letters, spaces, or '%+-() ' characters to corresponding half-width characters * * @access Public * @param string $str the string to be converted * * @return string $STR processed strings */ function Make_semiangle ($STR) { $arr = Array (' 0 ' = ' 0 ', ' 1 ' = ' 1 ', ' 2 ' = ' 2 ', ' 3 ' = ' 3 ', ' 4 ' = ' 4 ', ' 5 ' = ' 5 ', ' 6 ' = ' 6 ', ' 7 ' = ' 7 ', ' 8 ' = ' 8 ', ' 9 ' = ' 9 ', ' A ' = ' a ', ' B ' = ' B ', ' c ' = ' C ', ' d ' and '-d ', ' e ' = ' e ', ' F ' = ' f ', ' g ' = ' g ', ' h ' = = ' h ', ' i ' = ' I ', ' j ' = ' j ', ' k ' = ' k ', ' l ' = ' + ', ' m ' = = ' m ', ' n ' = ' n ', ' o ' = ' ' O ', ' P ' = ' P ', ' q ' + = ' q ', ' r ' = = ' R ', ' s ' = + ' s ', ' t ' = ' t ', ' U ' = ' ' u ', ' v ' = ' = ' V ', ' w ' = = ' W ', ' x ' = ' x ', ' y ' = ' y ', ' Z ' + ' z ', ' a ' = ' = ' A ', ' B ' = ' B ', ' c ' = ' C ', ' d ' = = ' d ', ' E ' = ' e ', ' f ' = ' f ', ' g ' = ' = ' g ', ' h ' = ' h ', ' i ' = = ' I ', ' J ' = ' j ', ' k ' = ' k ', ' l ' = ' = ', ' and ' = ', ' m ' + ' m ', ' n ' = ' n ', ' O ' = ' ' o ', ' p ' = ' P ', ' q ' = ' Q ', ' r ' = = ' R ', ' s ' = ' and ' s ', ' t ' = ' t ', ' u ' = ' = ' u ', ' v ' = ' = ' V ', ' w ' = ' W ', ' x ' = ' x ', ' Y ' = ' y ', ' z ' = ' z ', ' (' = ' = ' (') ' + ') ', ' (' = ' = ' [', ') ' + '] ', ' ' ' + ', ' [', ' ' ' = ' and ' ', ' ' = ' = ' [', ' ' ' ' = '] ', ' ' ' ' ' = ' [', ' ' ' ' = ' + ' [', ' ' + '] ', ' {' = ' = ', '} ' = '} ', ' ' = ' < ', ' ' = ' > ', '% ' = '% ', ' + ' = ' + ', '-' = '-', '-' = '-', ' ~ ' = '-', ': ' = ': ', '. ' = = ', ', ', ' = = ', ', ', ' = ', ', ', ' = ', ' '; ' = ', ', '? ' = = '? ', '! ' + '! ', ' ... ' + '-', ' ‖ ' = ' | ', ' ' ' = ' ', ' ' ' and ' ', ' ' and ' ', ' ' and ' ', ' | ' ' = ' + ', ' $ ' + ' $ ', ' @ ' + ' @ ', ' # ' + ' # ', ' ^ ' + ' ^ ', ' & ' + ' & ', ' * ' = ' * '; Return Strtr ($str, $arr); } Copy Code Example 2,php Chinese intercept string /* Chinese character interception function supported by Utf-8 and gb2312 Cut_str (string, intercept length, start length, encode); encoding defaults to Utf-8 Start length defaults to 0 * edit:bbs.it-home.org */ function Cut_str ($string, $sublen, $start = 0, $code = ' UTF-8 ') { if ($code = = ' UTF-8 ') { $pa = "/[\x01-\x7f]| [\XC2-\XDF] [\x80-\xbf]|\xe0[\xa0-\xbf][\x80-\xbf]| [\xe1-\xef] [\X80-\XBF] [\x80-\xbf]|\xf0[\x90-\xbf][\x80-\xbf][\x80-\xbf]| [\xf1-\xf7] [\X80-\XBF] [\X80-\XBF] [\x80-\xbf]/]; Preg_match_all ($pa, $string, $t _string); if (count ($t _string [0])-$start > $sublen) return join (' ', Array_slice ($t _string [0], $start, $sublen)). "..."; return join (' ', Array_slice ($t _string [0], $start, $sublen)); } else { $start = $start * 2; $sublen = $sublen * 2; $strlen = strlen ($string); $tmpstr = "; for ($i = 0; $i < $strlen; $i + +) { if ($i >= $start && $i < ($start + $sublen)) { if (Ord (substr ($string, $i, 1)) > 129) { $tmpstr. = substr ($string, $i, 2); } else { $tmpstr. = substr ($string, $i, 1); } } if (Ord (substr ($string, $i, 1)) > 129) $i + +; } if (strlen ($TMPSTR) < $strlen) $tmpstr. = "..."; return $tmpstr; } } $str = "ABCD string to intercept"; Echo Cut_str ($str, 1, 0, ' gb2312 '); ?> Copy Code Example 3, the loading of a string /** * Character interception support UTF8/GBK * @param $string * @param $length * @param $dot */ function Str_cut ($string, $length, $charset = ' utf-8 ', $dot = ' ... ') { $strlen = strlen ($string); if ($strlen <= $length) return $string; $string = Str_replace (', ', ' & ', ' ' ', ' ' ', ' ' ', ' ' ' ', '-', ' < ', ' > ', ' * ', ' ... '), Array (' ∵ ', ', ' & ', ' ' ', ' ' ', ' ' ', ' ' ', '-', ' < ', ' > ', ' ' ', ' ' ... '), $string); $strcut = "; if (Strtolower ($charset) = = ' Utf-8 ') { $length = Intval ($length-strlen ($DOT)-$length/3); $n = $tn = $noc = 0; while ($n < strlen ($string)) { $t = Ord ($string [$n]); if ($t = = 9 | | $t = = 10 | | (<= $t && $t <= 126)) { $tn = 1; $n + +; $noc + +; } elseif (194 <= $t && $t <= 223) { $tn = 2; $n + = 2; $noc + = 2; } elseif (224 <= $t && $t <= 239) { $tn = 3; $n + = 3; $noc + = 2; } elseif (<= $t && $t <= 247) { $tn = 4; $n + = 4; $noc + = 2; } elseif (248 <= $t && $t <= 251) { $tn = 5; $n + = 5; $noc + = 2; } elseif ($t = = 252 | | $t = = 253) { $tn = 6; $n + = 6; $noc + = 2; } else { $n + +; } if ($noc >= $length) { Break } } if ($noc > $length) { $n-= $tn; } $strcut = substr ($string, 0, $n); $strcut = Str_replace (' ∵ ', ' & ', ' ' ', ' ' ', ' ' ', ' ' ', '-', ' < ', ' > ', ' * ', ' ... '), Array (', ' & ', ' "', ') , ' ' ', ' ' ' ', '-', ' < ', ' > ', ' ' ', ' ... '), $strcut); } else { $dotlen = strlen ($dot); $maxi = $length-$dotlen-1; $current _str = "; $search _arr = Array (' & ', ' ', ' ' ', ' ' ', ' ' ', ' ' ', '-', ' < ', ' > ', ' * ', ' ... ', ' ∵ '); $replace _arr = Array (' & ', ' ', ' ' ', ' ' ', ' ' ', ' ' ', '-', ' < ', ' > ', ' * ', ' ... ', '); $search _flip = Array_flip ($search _arr); for ($i = 0; $i < $maxi; $i + +) { $current _str = Ord ($string [$i]) > 127? $string [$i]. $string [+ + $i]: $string [$i]; if (In_array ($current _str, $search _arr)) { $key = $search _flip[$current _str]; $current _str = str_replace ($search _arr[$key], $replace _arr[$key], $current _str); } $strcut. = $current _str; } } return $strcut. $dot; } Copy Code Example 4,php Chinese string Flip Flip a string you can use the Strrev () function. However, sometimes it is necessary to deal with the string is a Chinese language, so the use of Strrev will appear garbled. Here you can customize a function to handle characters that contain Chinese. /** * Chinese string flipping * by bbs.it-home.org */ function Cstrrev ($STR) { $len = strlen ($STR); for ($i = 0; $i < $len; $i + +) { $char = $str {0}; if (ord ($char) > 127) { $i + +; if ($i < $len) { $arr [] = substr ($str, 0, 2); $str = substr ($str, 2); } } Else { $arr [] = $char; $str = substr ($str, 1); } } return Join (Array_reverse ($arr)); } #使用方法: $str = ' Chinese. look! '; echo Cstrrev ($STR); #结果输出:!kool. In the text Copy Code Attached 5, function Str_replace_cn ($needle, $str, $haystack, $charset = "Utf-8") { $re [' utf-8 '] = "/[\x01-\x7f]| [\XC2-\XDF] [\x80-\xbf]| [\xe0-\xef] [\X80-\XBF] {2}| [\xf0-\xff] [\X80-\XBF] {3}/"; $re [' gb2312 '] = "/[\x01-\x7f]| [\xb0-\xf7] [\xa0-\xfe]/]; $re [' gbk '] = "/[\x01-\x7f]| [\x81-\xfe] [\x40-\xfe]/]; $re [' big5 '] = "/[\x01-\x7f]| [\x81-\xfe] ([\x40-\x7e]|\xa1-\xfe]) /"; Preg_match_all ($re [$charset], $haystack, $match _haystack); Preg_match_all ($re [$charset], $needle, $match _needle); for ($i = 0; $i < count ($match _needle); $i + +) { if (!in_array ($match _needle[0][$i], $match _haystack[0])) return $haystack;//No match } $match _haystack = $match _haystack[0]; $match _needle = $match _needle[0]; for ($i = 0; $i < count ($match _haystack); $i + +) { if ($match _haystack[$i] = = "") continue; if ($match _haystack[$i] = = $match _needle[0]) { if (count ($match _needle) = = 1) {//if only one character $match _haystack[$i] = $str; }else{ $flag = true; for ($j = 1; $j < count ($match _needle); $j + +) { if ($match _haystack[$i + $j]! = $match _needle[$j]) { $flag = false; Break } } if ($flag) {//Match $match _haystack[$i] = $str; for ($j = 1; $j < count ($match _needle); $j + +) { $match _haystack[$i + $j] = ""; } } } } } Return implode ("", $match _haystack); } Copy Code

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