PHP implementation name sorted by initials class and method (instance code) PHP instance

This article mainly introduces the implementation of the PHP name according to the first letter sorting class and method, the code is easy to understand, very good, with a certain reference value, need to refer to the friend

PHP sorts the names alphabetically by the first letter, as shown in the following code:

<?phppublic function Getfirstchar ($s) {$s 0 = mb_substr ($s, 0, 3);//Get the first name $s = Iconv (' UTF-8 ', ' gb2312 ', $s 0);// Convert UTF-8 to GB2312 encoded//dump ($s 0); if (Ord ($s 0) >128) {//Kanji start, Chinese characters do not have $asc=ord ($s {0}) *256+ord ($s {1}) with the start of U, V, -65536;if ($ asc>=-20319 and $asc <=-20284) return "A", if ($asc >=-20283 and $asc <=-19776) return "B"; if ($asc >=-19775 and $asc <=-19219) return "C", if ($asc >=-19218 and $asc <=-18711) return "D"; if ($asc >=-18710 and $asc <=- 18527) return "E", if ($asc >=-18526 and $asc <=-18240) return "F", if ($asc >=-18239 and $asc <=-17760) return "G"; if ($asc >=-17759 and $asc <=-17248) return "H"; if ($asc >=-17247 and $asc <=-17418) return "I"; if ($asc >=- 17417 and $asc <=-16475) return "J", if ($asc >=-16474 and $asc <=-16213) return "K"; if ($asc >=-16212 and $asc < =-15641) return "L", if ($asc >=-15640 and $asc <=-15166) return "M", if ($asc >=-15165 and $asc <=-14923) return "N if ($asc >=-14922 and $asc <=-14915) return "O"; if ($asc >=-14914 and $asc <=-14631) return "P", if ($asc >=-14630 and $asc <=-14150) return "Q", if ($asc >=-14149 and $asc <=-14091) return "R" if ($asc >=-14090 and $asc <=-13319) return "S", if ($asc >=-13318 and $asc <=-12839) return "T", if ($asc >=- 12838 and $asc <=-12557) return "W", if ($asc >=-12556 and $asc <=-11848) return "X"; if ($asc >=-11847 and $asc < =-11056) return "Y", if ($asc >=-11055 and $asc <=-10247) return "Z";} else if (ord ($s) >=48 and Ord ($s) <=57) {//number starts with switch (ICONV_SUBSTR ($s, 0,1, ' utf-8 ')) {case 1:return "Y"; Case 2: Return "E", Case 3:return "s", Case 4:return "s", Case 5:return "W", Case 6:return "L", Case 7:return "Q", Case 8:return "B"; CAs E 9:return "J"; case 0:return "L";}} else if (ord ($s) >=65 and Ord ($s) <=90) {//Capital English begins with return substr ($s, 0, 1);} else if (ord ($s) >=97 and Ord ($s) <=122) {//lowercase English begins with return Strtoupper (substr ($s, 0, 1));} Else{return Iconv_substr ($s 0,0,1, ' utf-8 ');//English mixed words are not suitable for all the above situations, so the first character can be extracted directly}}public function Addpeople () {$ UserName = Array (' Zhang San ', ' horse stud ', ' John Doe ', ' Harry ', ' Little Two ',' Cat eggs ', ' dog eggs ', ' crab ', ' Sanmao ', ' xiaoming ', ' Li Gang ', ' Zhang Fei '), sort ($userName), foreach ($userName as $name) {$char = $this->getfirstchar ($ Name), $nameArray = Array (), if (count ($charArray [$char])!=0) {$nameArray = $charArray [$char];} Array_push ($nameArray, $name); $charArray [$char] = $nameArray;} Ksort ($charArray); $this->assign (' _list ', $charArray);}

Page display

<foreach name= "_list" item= "Vo" key= "K" ><p>{$k}</p><foreach name= "vo" item= "L" ><span class= "Name" >{$l}</span></foreach></foreach>

Summarize

The above is a small part of the introduction of the PHP implementation of the name according to the first letter of the class and method, I hope that we have some help, if you have any questions please give me a message, small series will promptly reply to you. Thank you very much for the support of PHP Chinese network!

Articles you may be interested in:

PHP implementation of multi-image upload and single-image upload function php example

PHP SMS Verification Code implementation process detailed PHP example

PHP uses various functions to determine 0 and null PHP instances