PHP----String

Var_dump (Explode (":","Php:123"));//Return array by: Split. Output: PHP, 123EchoImplode (',',Array(' A ',' B '));//Return string output: a bList($user,$pass) = Explode (":","Php:123");Echo$user,$pass;//Return string output: php123$array=Array(' php ',' 123 ');EchoJoin",",$array);//Return string output: php,123STRRCHR (' Abab ',' A ');//ab (last seen)Substr' ABCD ',1);//BCD (returns a substring of a string)Substr' ABCD ',2,2);//CDSubstr' ABCD ',-1,1);//d (Position confirmation is truncated by length)Substr' ABCD ',-2,2);//CDStrpos (' abcd@yahoo.com ','@');//4 (positional characters)Substr' abcd@yahoo.com ',0, Strpos (' abcd@yahoo.com ','@'));//ABCDStr_repeat (' A ',5);//aaaaa (Repeats a string)Str_shuffle (' ABCD ');//CBDA Note: Changes with refresh (randomly scrambling a string)Stripos (' ABCA ',' A ');//0 (Note: A on the first seat, find the position where the string first appears ( case-insensitive))Strripos (' ABCA ',' A ');//3 (calculates the location of the last occurrence of the specified string in the target string ( case-insensitive))Strrpos (' ABCA ',' A ');//0 (calculates the location of the last occurrence of the specified string in the target string)Substr_count (' ABCD ',' B ');//1 (counts the number of occurrences of a string)STRCSPN (' Aabb cc ',' C ');//5 (returns the number of characters to find in a string before any specified character is found)STRSPN (' abcdef ',' abc ');//3 (returns the number of specific characters contained in the string)STRSPN (' abcdef ',' BC ');//0STRSPN (' abcdef ',' BC ',1,5);//2Chr $);//a (get ASCII encoding)Ord' A ');//65STRCHR (' Aa BB ',' A ');//a BB (search for a string to return the specified character)STRCHR (' Aa BB ', About);//For empty note: ASCII c:99STRCHR (' Aa BB ', the);//a BB Note: ASCII a:97Addcslashes (' Aabb ',' A ');//\a\abb (function to add a backslash before the specified character)Addslashes ("AA bb ");//aa bb\ ' (Escape: Predefined ', \)Lcfirst (' Hello World ');//hello World (first character lowercase)LTrim":p hp:123:",':');//php:123 (remove left and right characters)RTrim":p hp:123:",':');//:p hp:123 (remove right character)Trim":p hp:123:",':');//php:123 (remove left character)NL2BR ("Php\r\n123");//php
123 (Insert Career tab)WordWrap (' aaabbb ',3,'
',true);//AAA
BBB (break string to a specified number of strings)Quotemeta (' ABCD. ()');//abcd\.\ (\)---(Reference meta-character:. + *?) [ ^ ] ( $ ) )Similar_text (' ABCD ',' AAAA ',$sim);//25 (calculates the similarity of two strings)Similar_text (' ABCD ',' AAAA ');//1sprintf' name:%s,age:%d ',' AAA ', A);//(return formatted string)Str_ireplace (' AA ',' One ',' AA22 ');//1122 (ignoring case versions)STRCASECMP (' Hello ',' Hello ');//0 Note: left>right: Positive, Reverse: negative (binary security comparison string (case insensitive))Str_pad (' AAA ',Ten);//aaa (followed by 7 spaces)--(fills a string with another string for a specified length)Str_pad (' AAA ',Ten,'-', Str_pad_left);//-------AAA;Str_pad (' AAA ',Ten,'-', Str_pad_both);//---AAA----$str="Hello
1
"; Strip_tags ($str);//hello1 (remove HTML and PHP tags from the string)Strip_tags ($str,'
'); //hello
1
Stripcslashes (' AA\\BB ');//aab (escaped string minus backslash)Stripcslashes (' AA\\\BB ');//AA\BBStripslashes (' This is one ');//This is one (dereference a reference string)STRISTR (' ABc@163.com ',' B ');//bc@163.com (Ignore case version of function)STRISTR (' ABc@163.com ',' B ',true);//aStrstr' ABc@163.com ','@');//@163.com (Find first occurrence of string)Strstr' ABc@163.com ','@',true);//ABCStrlen' AB CD ');//5 (Get string length)strcmp"AAA","BBB");//-1 Note: Binary secure string comparisonstrncmp' ABCD ',' AB ',2);//0 Note: 2 matches 0, Part 1, no -1strncmp' ABCD ',' A ',2);//1strncmp' ABCD ',' C ',2);//-1Substr_compare (' ABCD ',' B ',1,1);//0 (binary security comparison string (specified length from offset))Substr_compare (' ABCD ',' C ',-2,1);//0Substr_compare (' ABCD ',' B ',1,1,true);//0Substr_replace (' abcd E ',' 1 ',5);//ABCD 1 (substring of replacement string)Substr_replace (' abcd E ',' 1 ', -1);//ABCD 1Substr_replace (' abcd E ',' 1 ',2,2);//ab1 eStr_replace (' AA ', One,' Aa22 ');//1122 (sub-string substitution)STRPBRK (' AbAc ',' A ');//ac (finds any one character of a set of characters in a string)STRPBRK (' AbAc ',' CB ');//bac (finds any one character of a set of characters in a string)Strrev (' ABCD ');//DCBA (Inverted string)Strtok' Aa/bb ','/');//AA (Tag split string)Strtolower (' ABc ');//abc (converts a string to lowercase)Strtoupper (' ABc ');//abc (converts a string to uppercase)Ucfirst (' ABCD ');//ABCD (converts the first letter of a string to uppercase)Ucwords (' ABCD cc ');//ABCD Cc (converts the first letter of each word in a string to uppercase)TRTR (' AABBCC ',' AC ',' One ');//11bb11 (remove whitespace characters from the beginning and end of the string)$arr=Array(' Hello '=' Hi ',' World '=' Today ');EchoSTRTR (' Hello World ',$arr);//hi TodayTrim' ABCD ');//abcd (remove whitespace characters from the beginning and end of the string)Trim' XABCDX ',' x ');//ABCDMd5_file ("C:\d\d.txt");//d.txt file to existMD5 ("C:\d\d.txt");//Dual MD5 encryption classTestMd5{ functionget($num){$num=MD5 (MD5 ($num)."En");return$num; }}$testMd 5=NewTestMd5 ();Echo$testMd 5->get ("Test");$date= Date ("y-m-d h:i:s");List($y,$m,$d,$h,$i,$s) = Split ('[- :]',$date);Echo"$y year $m month $d day $h $i minutes $s seconds";//Explode stringNumber_format (1234.56);//1,2345 (formatted number)Number_format (1234.56,2,',','');//1234,56Number_format (1234.56,2,'.',' ');//1 234.56$str=' FIRST=ONE&ARR[]=A+B&ARR[]=CCC ';p Arse_str ($str);//Parse string variable$first;//one$arr[0];//a b$arr[1];//CCC;PARSE_STR ($str,$put);$put[' first '];//one$put[' arr '][0];//a b$put[' arr '][1];//CCC$arr 1=Array(' Img1.png ',' Img10.png ',' Img2.png '); Sort ($arr 1);//Press key valueNatsort ($arr 1);//By Val value$line=' AA ' bb cc. ' Dd.txt ';$parsed= Str_getcsv ($line,' ','"');//Parse CSV string as an arrayVar_dump ($parsed);//array (3) {[0]=> string (2) "AA" [1]=> string (6) "BB cc." [2]=> string (6) "Dd.txt"}Print_r (Str_split (' Hello World '));//Convert string to arrayPrint_r (Str_split (' Hello World ',3));/*array ([0] = h [1] ~ = e [2] = = l [3] = = l [4] = o [5] = [6] = W  [7] = = O [8] = r [9] = = L [Ten] + D) Array ([0] = hel [1] = = Lo [2] = = WOR [3] = LD) * /

'). addclass (' pre-numbering '). Hide (); $ (this). addclass (' has-numbering '). Parent (). append ($numbering); for (i = 1; i <= lines; i++) {$numbering. Append ($ ('

'). Text (i)); }; $numbering. FadeIn (1700); }); });

The above describes the PHP----String, including aspects of the content, I hope that the PHP tutorial interested in a friend helpful.

