PHP

Note: Find php.ini in Windows directory Open edit, search Mbstring.dll, findExtension=php_mbstring.dll the front of the number, so the MB_SUBSTR function can be effective Example The code is as follows Copy Code $str = '

$CN = MySQL tutorial _connect (' localhost ', ' root ', ');mysql_select_db (' Test ', $CN);Creating a Databasemysql_query ("Create datebase ' test ';");Creating data Tables$sql = "CREATE TABLE IF not EXISTS ' test ' (' ID ' int (8) not NULL

First step /*First create the data table directly copy to your phpMyAdmin directly run on OK. 1 CREATE TABLE IF not EXISTS ' useradmin ' (' ID ' int (4) not NULL auto_increment,' username ' varchar default NULL,' userpass ' varchar default NULL,'

PHP's search for a database is done primarily by using like clauses in SQL statements. If you search multiple keywords at the same time, you can use the Union clause to combine the search results. The following code implements a search

$d =array ( Array ("A",-20319), Array ("AI",-20317), Array ("an",-20304), Array ("Ang",-20295), Array ("AO",-20292), Array ("BA",-20283), Array ("Bai",-20265), Array ("Ban",-20257), Array ("Bang",-20242), Array ("Bao",-20230), Array

Recently in doing a project, I found that in PHP, if you want to assign a value to an element of a data, you will get an error: ? PHP $str = " 222222 " ; $var = Array (A => " 1 " , b => $str , C => "" ); if ( $var [b]) { $var [C] = $var [b];} ?>  

A simple example:News template file news_tmp.html:{title}{news_title}{news_image} {news_content}______________________________________________________________________________________________Answer 7:News Generation file aaa.php:?Let's say the

The code is as follows Copy Code Include (' class/class.phpmailer.php '); $config = Array (' Host ' => ' smtp.163.com ',' Port ' => ' 25 ',' User ' => ' * * *,' passwd ' => ' * * * *,' From ' => ' juva_zz@163.com ',' FromName ' => '

Example Comment on the expression using the label 1 to 60. The corresponding picture path/public/images/face/1.gif to/public/images/face/60.gif. The implementation method is to use the Preg_replace function to complete the display of the comment

This article illustrates the simplest method of string matching in PHP, which is implemented as follows: The code is as follows Copy Code /*The simplest string matching algorithm PHP implementation methodT:ababcabcP:abc0.1

# Display graphics and connectionsFunction showdir ($ adirectory, $ I){ Global $ browsedir;$ Start = $ I;# Changing $ maxcols and $ maximages can change the number of rows and columns of the small graph displayed on each page.$ Maxcols = 2;$

The code is as follows:Copy code Session_start ();$ Im = imagecreatetruecolor (100,30 );// Assign color$ Bg = imagecolorallocate ($ im, 0, 0 );$ Textcolor = imagecolorallocate ($ im, 255,255,255 );// Mark the imageFor ($ I = 0; $ I $ Te1 =

$ Height = 300;$ Width = 300;$ Im = ImageCreateTrueColor ($ width, $ height );$ White = ImageColorAllocate ($ im, 255,255,255 );$ Blue = ImageColorAllocate ($ im, 0, 0, 64 );ImageFill ($ im, 0, 0, $ blue );// ImageLine ($ im, 0, 0, $ width, $ height,

Php verification code generation program$ Consts = 'bcdfghjkmnpqrstwxyz ';$ Vowels = 'aei23456789 ';For ($ x = 0; $ x  {$ Const [$ x] = substr ($ consts, mt_rand (0, strlen ($ consts)-1), 1 );$ Vow [$ x] = substr ($ vowels, mt_rand (0, strlen ($

Function is_ip ($ str ){If (! Strcmp (long2ip (sprintf ("% u", ip2long ($ ip), $ ip) return 1;Else return 0;}Or (used in earlier versions)Function is_ip ($ str ){$ Ip = explode (".", $ str );If (count ($ ip) 4) return 0;Foreach ($ ip as $ ip_addr ){

The mail () function is very simple: there are only five parameters, and two of them are optional. These parameters are:Recipient addressTopicLetter contentOther file information headers (optional)Other configuration options of the SMTP Service

The code is as follows:Copy code Function NumToStr ($ num ){If (stripos ($ num, 'E') == false) return $ num;$ Num = trim (preg_replace ('/[= \' "]/','', $ num, 1),' "'); // Scientific notation is displayed, returns a string.$ Result = "";While ($

Remember that json_encode returns a string, while json_decode returns an object.Determine that the data is not in JSON format: The code is as follows:Copy code Function is_not_json ($ str ){Return is_null (json_decode ($ str ));} Determine that

Curl can obtain the cookie Set on the returned page. The principle is the same as that of get_headers. You can retrieve the "Set-Cookie:" Content from the returned header.Test page/cookie setting page:Test. php The code is as follows:Copy code

1. Use myisam instead of innodbThe mysql tutorial has many database tutorial engines, but the most common examples are myisam and innodb.Mysql uses myisam by default. However, in many cases this is a bad choice unless you are creating a very simple