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本文目录一览： 1、 php中如何传入一个数修改后输出 2、 php 如何获取字符串拼音首字母 3、 如何对php字符串中的每一个字符操作 4、 PHP提示:syntax error, unexpected T_LNUMBER ; php中如何传入一个数修改后输出if(isset($_GET['shu'])) {
echo $_GET['shu'] + 50;
}
测试时再浏览器地址栏上加上 ?shu=1
php 如何获取字符串拼音首字母//汉字转拼音（生僻字不支持） $pinyin = $this->utf8_to("我是中文"); //汉字转拼音（生僻字不支持） function(){ echo $this->utf8_to("我是个好人"); } /** * 以下是中文转拼音 * @param $s * @param bool $isfirst * @return string */ public static function utf8_to($s, $isfirst = false) { return self::to(self::utf8_to_gb2312($s), $isfirst); } public static function utf8_to_gb2312($s) { return iconv('UTF-8', 'GB2312//IGNORE', $s); } // 字符串必须为GB2312编码 public static function to($s, $isfirst = false) { $res = ''; $len = strlen($s); $pinyin_arr = self::get_pinyin_array(); for($i=0; $i<$len; $i++) { $ascii = ord($s{$i}); if($ascii > 0x80) { $ascii2 = ord($s{++$i}); $ascii = $ascii * 256 + $ascii2 - 65536; } if($ascii < 255 $ascii > 0) { if(($ascii >= 48 $ascii <= 57) || ($ascii >= 97 $ascii <= 122)) { $res .= $s{$i}; // 0-9 a-z }elseif($ascii >= 65 $ascii <= 90) { $res .= strtolower($s{$i}); // A-Z }else{ $res .= '_'; } }elseif($ascii < -20319 || $ascii > -10247) { $res .= '_'; }else{ foreach($pinyin_arr as $py=>$asc) { if($asc <= $ascii) { $res .= $isfirst ? $py{0} : $py; break; } } } } return $res; } public static function to_first($s) { $ascii = ord($s{0}); if($ascii > 0xE0) { $s = self::utf8_to_gb2312($s{0}.$s{1}.$s{2}); }elseif($ascii < 0x80) { if($ascii >= 65 $ascii <= 90) { return strtolower($s{0}); }elseif($ascii >= 97 $ascii <= 122) { return $s{0}; }else{ return false; } } if(strlen($s) < 2) { return false; } $asc = ord($s{0}) * 256 + ord($s{1}) - 65536; if($asc>=-20319 $asc<=-20284) return 'a'; if($asc>=-20283 $asc<=-19776) return 'b'; if($asc>=-19775 $asc<=-19219) return 'c'; if($asc>=-19218 $asc<=-18711) return 'd'; if($asc>=-18710 $asc<=-18527) return 'e'; if($asc>=-18526 $asc<=-18240) return 'f'; if($asc>=-18239 $asc<=-17923) return 'g'; if($asc>=-17922 $asc<=-17418) return 'h'; if($asc>=-17417 $asc<=-16475) return 'j'; if($asc>=-16474 $asc<=-16213) return 'k'; if($asc>=-16212 $asc<=-15641) return 'l'; if($asc>=-15640 $asc<=-15166) return 'm'; if($asc>=-15165 $asc<=-14923) return 'n'; if($asc>=-14922 $asc<=-14915) return 'o'; if($asc>=-14914 $asc<=-14631) return 'p'; if($asc>=-14630 $asc<=-14150) return 'q'; if($asc>=-14149 $asc<=-14091) return 'r'; if($asc>=-14090 $asc<=-13319) return 's'; if($asc>=-13318 $asc<=-12839) return 't'; if($asc>=-12838 $asc<=-12557) return 'w'; if($asc>=-12556 $asc<=-11848) return 'x'; if($asc>=-11847 $asc<=-11056) return 'y'; if($asc>=-11055 $asc<=-10247) return 'z'; return false; } public static function get_pinyin_array() { static $py_arr; if(isset($py_arr)) return $py_arr; $k = 'a|ai|an|ang|ao|ba|bai|ban|bang|bao|bei|ben|beng|bi|bian|biao|bie|bin|bing|bo|bu|ca|cai|can|cang|cao|ce|ceng|cha|chai|chan|chang|chao|che|chen|cheng|chi|chong|chou|chu|chuai|chuan|chuang|chui|chun|chuo|ci|cong|cou|cu|cuan|cui|cun|cuo|da|dai|dan|dang|dao|de|deng|di|dian|diao|die|ding|diu|dong|dou|du|duan|dui|dun|duo|e|en|er|fa|fan|fang|fei|fen|feng|fo|fou|fu|ga|gai|gan|gang|gao|ge|gei|gen|geng|gong|gou|gu|gua|guai|guan|guang|gui|gun|guo|ha|hai|han|hang|hao|he|hei|hen|heng|hong|hou|hu|hua|huai|huan|huang|hui|hun|huo|ji|jia|jian|jiang|jiao|jie|jin|jing|jiong|jiu|ju|juan|jue|jun|ka|kai|kan|kang|kao|ke|ken|keng|kong|kou|ku|kua|kuai|kuan|kuang|kui|kun|kuo|la|lai|lan|lang|lao|le|lei|leng|li|lia|lian|liang|liao|lie|lin|ling|liu|long|lou|lu|lv|luan|lue|lun|luo|ma|mai|man|mang|mao|me|mei|men|meng|mi|mian|miao|mie|min|ming|miu|mo|mou|mu|na|nai|nan|nang|nao|ne|nei|nen|neng|ni|nian|niang|niao|nie|nin|ning|niu|nong|nu|nv|nuan|nue|nuo|o|ou|pa|pai|pan|pang|pao|pei|pen|peng|pi|pian|piao|pie|pin|ping|po|pu|qi|qia|qian|qiang|qiao|qie|qin|qing|qiong|qiu|qu|quan|que|qun|ran|rang|rao|re|ren|reng|ri|rong|rou|ru|ruan|rui|run|ruo|sa|sai|san|sang|sao|se|sen|seng|sha|shai|shan|shang|shao|she|shen|sheng|shi|shou|shu|shua|shuai|shuan|shuang|shui|shun|shuo|si|song|sou|su|suan|sui|sun|suo|ta|tai|tan|tang|tao|te|teng|ti|tian|tiao|tie|ting|tong|tou|tu|tuan|tui|tun|tuo|wa|wai|wan|wang|wei|wen|weng|wo|wu|xi|xia|xian|xiang|xiao|xie|xin|xing|xiong|xiu|xu|xuan|xue|xun|ya|yan|yang|yao|ye|yi|yin|ying|yo|yong|you|yu|yuan|yue|yun|za|zai|zan|zang|zao|ze|zei|zen|zeng|zha|zhai|zhan|zhang|zhao|zhe|zhen|zheng|zhi|zhong|zhou|zhu|zhua|zhuai|zhuan|zhuang|zhui|zhun|zhuo|zi|zong|zou|zu|zuan|zui|zun|zuo'; $v = '-20319|-20317|-20304|-20295|-20292|-20283|-20265|-20257|-20242|-20230|-20051|-20036|-20032|-20026|-20002|-19990|-19986|-19982|-19976|-19805|-19784|-19775|-19774|-19763|-19756|-19751|-19746|-19741|-19739|-19728|-19725|-19715|-19540|-19531|-19525|-19515|-19500|-19484|-19479|-19467|-19289|-19288|-19281|-19275|-19270|-19263|-19261|-19249|-19243|-19242|-19238|-19235|-19227|-19224|-19218|-19212|-19038|-19023|-19018|-19006|-19003|-18996|-18977|-18961|-18952|-18783|-18774|-18773|-18763|-18756|-18741|-18735|-18731|-18722|-18710|-18697|-18696|-18526|-18518|-18501|-18490|-18478|-18463|-18448|-18447|-18446|-18239|-18237|-18231|-18220|-18211|-18201|-18184|-18183|-18181|-18012|-17997|-17988|-17970|-17964|-17961|-17950|-17947|-17931|-17928|-17922|-17759|-17752|-17733|-17730|-17721|-17703|-17701|-17697|-17692|-17683|-17676|-17496|-17487|-17482|-17468|-17454|-17433|-17427|-17417|-17202|-17185|-16983|-16970|-16942|-16915|-16733|-16708|-16706|-16689|-16664|-16657|-16647|-16474|-16470|-16465|-16459|-16452|-16448|-16433|-16429|-16427|-16423|-16419|-16412|-16407|-16403|-16401|-16393|-16220|-16216|-16212|-16205|-16202|-16187|-16180|-16171|-16169|-16158|-16155|-15959|-15958|-15944|-15933|-15920|-15915|-15903|-15889|-15878|-15707|-15701|-15681|-15667|-15661|-15659|-15652|-15640|-15631|-15625|-15454|-15448|-15436|-15435|-15419|-15416|-15408|-15394|-15385|-15377|-15375|-15369|-15363|-15362|-15183|-15180|-15165|-15158|-15153|-15150|-15149|-15144|-15143|-15141|-15140|-15139|-15128|-15121|-15119|-15117|-15110|-15109|-14941|-14937|-14933|-14930|-14929|-14928|-14926|-14922|-14921|-14914|-14908|-14902|-14894|-14889|-14882|-14873|-14871|-14857|-14678|-14674|-14670|-14668|-14663|-14654|-14645|-14630|-14594|-14429|-14407|-14399|-14384|-14379|-14368|-14355|-14353|-14345|-14170|-14159|-14151|-14149|-14145|-14140|-14137|-14135|-14125|-14123|-14122|-14112|-14109|-14099|-14097|-14094|-14092|-14090|-14087|-14083|-13917|-13914|-13910|-13907|-13906|-13905|-13896|-13894|-13878|-13870|-13859|-13847|-13831|-13658|-13611|-13601|-13406|-13404|-13400|-13398|-13395|-13391|-13387|-13383|-13367|-13359|-13356|-13343|-13340|-13329|-13326|-13318|-13147|-13138|-13120|-13107|-13096|-13095|-13091|-13076|-13068|-13063|-13060|-12888|-12875|-12871|-12860|-12858|-12852|-12849|-12838|-12831|-12829|-12812|-12802|-12607|-12597|-12594|-12585|-12556|-12359|-12346|-12320|-12300|-12120|-12099|-12089|-12074|-12067|-12058|-12039|-11867|-11861|-11847|-11831|-11798|-11781|-11604|-11589|-11536|-11358|-11340|-11339|-11324|-11303|-11097|-11077|-11067|-11055|-11052|-11045|-11041|-11038|-11024|-11020|-11019|-11018|-11014|-10838|-10832|-10815|-10800|-10790|-10780|-10764|-10587|-10544|-10533|-10519|-10331|-10329|-10328|-10322|-10315|-10309|-10307|-10296|-10281|-10274|-10270|-10262|-10260|-10256|-10254'; $key = explode('|', $k); $val = explode('|', $v); $py_arr = array_combine($key, $val); arsort($py_arr); return $py_arr; }
如何对php字符串中的每一个字符操作用这两个函数实现最好，php处理字符的能力没有c语言那么强。
把这句：$resultString.=$str[$i]+1;
改成：$resultString.=chr(ord($str[$i])+1);
echo decode('abcde');//输出bcdef
echo decode('xyz');//输出yz{
<?php
function decode($str){
$resultString = "";
for($i = 0;$i < strlen($str);$i++){
$resultString.=chr(ord($str[$i])+1);//把字符转换成ascii码+1再转回去
}
return $resultString;
}
echo decode('abcde');
echo '</br>';
echo decode('xyz');
?>
PHP提示:syntax error, unexpected T_LNUMBER ;你的错误在于在php字符串的括号""里面又嵌入了"3","zhan"等括号。
解决1：需要转义改成\"3\",\"zhan\"等
解决2：改成单括号'3','zhan'等
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