PHP Tutorials

PHP gets the first letter of Chinese pinyin Copy the Code code as follows: function Getinitial ($STR){$asc =ord (substr ($str, 0, 1));if ($ASC {if ($asc >=48 && $asc Return ' 1 '; Digital}elseif ($asc >=65 && $asc return Chr ($ASC); A--z}elseif ($

Because PHP will search for variables in a string surrounded by double quotes, single quotes will not, note: only echo can do this, it is a string can be used as a parameter of the "function" (in the PHP manual that echo is a language structure, not

Perror 28 Error Code 28:no space left on device SQL statement execution error: SELECT title,gid from Blog_blog WHERE Date Error writing file ' C:\WINDOWS\TEMP\MY9B6F.tmp ' (errcode:28) Workaround: 1. Releasing C:\WINDOWS\TEMP\ space 2. Because the

Add ($key, $value, $expiry); $key: Unique identity, used to differentiate written data $value: Data to write $expiry: Expiration time, default is always valid Purpose: Writes data to Memcache Get ($key) $key: Get the corresponding data by $key at

This is modified by the ASP two-level side-pull menu. Copy the Code code as follows: Require ('.. /connections/lr.php '); mysql_select_db ($database _lr, $LR); $query = mysql_query ("SELECT * from Bigclass

Encoding range 1. GBK (gb2312/gb18030) \x00-\xff GBK Double byte encoding range \x20-\x7f ASCII \xa1-\xff Chinese \x80-\xff Chinese 2. UTF-8 (Unicode) \U4E00-\U9FA5 (English) \x3130-\x318f (Korean \XAC00-\XD7A3 (Korean) \u0800-\u4e00 (Japanese) PS:

mysql_query ("Begin");//Start a transaction mysql_query ("SET autocommit=0"); Set transaction not automatic commit $insert = "INSERT INTO UserInfo VALUES (' aa12 ', ' AA ', ' 1 ', ' aaa ')"; mysql_query ($insert); mysql_query

Copy CodeThe code is as follows: /*Traverse the folder; Function: (a) can delete the file (b) editable text, Web page file (c) can delete the folder, if the folder is empty (d) can establish files, folders, modify the folder name;lost63.com

Iconv ("UTF-8", "Gb2312//ignore", $FormValues [' a ']) Ignore means ignoring errors at the time of conversion, and discovering that Iconv will make an error converting the character "-" to gb2312, and if there is no ignore argument, all strings

To deal with this situation, some of the practice is to use a timestamp to rename the new file, there are a number of sequential increments, in order to solve the troublesome operation, I recently wrote a frename function, you can flexibly according

I've probably conceived it, and there are two options: 1. JavaScript to determine the browser language of the visitors, if the Chinese system, natural users are Chinese, jump Chinese website; If the non-Chinese system, the default user is not

Instead focusing for a few days, finally figured out the truth inside. Write here, please correct me. The idea of the collection program is very simple, is simply to hit a page, is generally a list page, get the address of all the links inside, and

Please click on the following address to download: CSV operation class Instructions for use are as follows: 1. Generate a CSV file Copy the Code code as follows: Require "./include/csvdatafile.php";Set_time_limit (200);Header

Functions of the GD library 1,imagecreatetruecolor-----Create a true-color image Imagecreatetruecolor (int x_size,int y_size)//x is wide, y represents high 2,imagecolorallocate Assigning color (palette) to an image Imagecolorallocate (Resource Image,

Definition and usage The __construct () function creates a new SimpleXMLElement object. If successful, the function returns an object. If it fails, it returns false. Grammar __construct (Data,options,is_url,ns,is_prefix) Parameters

Copy CodeThe code is as follows: /*** One-dollar segmentation algorithm* UTF8 encoding next character if the first character ASCII code is not greater than 192, it only accounts for 1 bytes.* If the first character ASCII code greater than 192 is

Copy CodeThe code is as follows: /** php smtp Send mail Scoket class* zhozphpsmtpsendmail.php* Created on 2008/09/02 zhoz.com* @author Zhoz* v 1.72 update 2008/09/26 zhoz. Com*/Class Zhozphpsmtpsendmail {Your SMTP server vendor, which can be a

Hashtable is also known as a hash table in the usual data structure textbook. The basic principle is simple (if you are unfamiliar with it, please refer to a random data structure textbook or search online), but PHP implementation has its unique

As long as you have written PHP code, I believe you have encountered this most of the time is puzzling warning bar. Today we are going to take care of it ..... Read the PHP manual and answer the following: Message "Warning:cannot send session Cookie-

PHP simple array Sorting method for everyone to learn the reference. PHP does not know how to compare two arrays and needs to create a way to compare them. First, the initialization of the numeric index array Copy the Code code as follows: $arr =