PHP operation memcached Cache for the implementation of the code to check data _php skills

Core code: connect ("127.0.0.1", 11211)) { die (' Connection failed '); } if ($memcache->set (' Key1 ', "Xian", memcache_compressed,60)) { echo ' sucess! '; } A stored value in which the Xian string can also be an array, an object, but

Parsing link_mysql PHP version of _php skills

Copy Code code as follows: $str _sql_read= "SELECT COUNT (*) as Num from userinfo"; $str _sql_del= "Delete from userinfo where id = 1"; $res =link_mysql ("read", $str _sql_read); $res _del =link_mysql ("delete", $str _sql_del); echo $res

PHP CI Framework inserts one or more SQL Records example _php tips

1. Insert a record $data = Array ( ' title ' => ' My title ', ' name ' => ' I name ', ' date ' => ' My Date ' ); $this->db->insert (' mytable ', $data); Produces:insert into MyTable (title, name, date) VALUES (' I title ', ' My Name ', ' My

PHP deletes the substring at the end of the string, deletes the start character, deletes the two characters (implements the code) _php tips

Today, when dealing with a specific character at both ends of the string, you encounter the following problem, first look at the example $str = ' Akmumu/writedb.json ';What I'm going to do is delete the starting Akmumu, and then delete the. JSON

PHP Multi-Task Program instance parsing _php technique

This article is a simple example of the implementation of the PHP multitasking program, the specific code is as follows: _pref = 0; The public static function getinstance ($file) {if (null = self::$_instance) {self::$_instance = new self;

PHP implementation of a multi-level directory method _php skills

In this paper, an example of PHP to establish a multi-level directory implementation method, code concise and practical, powerful, for PHP programmers have a certain reference value. Details of the example are as follows: /** * Based on path

PHP common algorithms and time complexity _php techniques

pow

By order of magnitude, the common time complexity is: Constant order O (1), Logarithmic order O (log2n), linear order O (n), linear logarithmic order O (nlog2n), square O (n2), Cubic O (N3) Copy Code code as follows: Two-point search O

How to use both session and Cookie in PHP to save user login information _php tips

Use session and cookies to save user login information at the same time 1. Database Connection Configuration page: connectvars.php Copy Code code as follows: Location of the database Define (' Db_host ', ' 127.0.0.1 '); User

Parse PHP to get the specified code for a remote Web page via Cookies _php tips

Copy Code code as follows: function Steal ($url, $post _data = "") { $header [] = "accept:text/vnd.wap.wml,*.*"; $user _agent = "mozilla/4.0"; $follow _loc = 1; $cookie _file = "./tmp/cook.txt"; $ch = @curl_init (); @curl_setopt ($ch,

Using PHP to implement Spider access log statistics _php techniques

Copy Code code as follows: $useragent = Addslashes (Strtolower ($_server[' http_user_agent ')); if (Strpos ($useragent, ' Googlebot ')!== false) {$bot = ' Google ';} ElseIf (Strpos ($useragent, ' Mediapartners-google ')!== false) {$bot = '

PHP, Nginx, Apache methods to prevent web pages from being referenced by IFrame _php tips

You can use PHP or Nginx to add x-frame-options headers to control Frame permissionsX-frame-options has three optional values: Deny: Browser rejects current page loading any frame pageThe address of the Sameorigin:frame page can only be a page

PHP get $_post The implementation of an array of parameters with the same name _php tips

Today, when I wrote PHP, I found that $_post["arr" could not get an array of parameter arr. For example, the following form needs to be submitted: Copy Code code as follows: You can only get the value of the last selected check

Function overload _php technique of PHP tips

1. You can use the Func_get_args () and Func_num_args () functions to implement the overload of the function!! PHP Code: Copy Code code as follows: function rewrite () { $args = Func_get_args (); if (Func_num_args () = = 1) { Func1 (

PHP easy to achieve in Chinese and English mixed-row string interception _php skills

Let me first introduce you to the function used: Copy Code code as follows: Mb_strwidth ($STR, $encoding) returns the width of the string $str the string to be evaluated $encoding the encoding to use, such as UTF8, GBK

PHP Learning Note string encoding conversion and judgment _php tips

Copy Code code as follows: Iconv (' GBK ', ' utf-8//ignore ', ' cloud-dwelling community '); Converts a string from GBK encoding to UTF-8 encoding However, the iconv can only solve the situation in which the encoding is known, and

PHP to obtain the HTTP status of the implementation code _php tips

The wind-driven arrangement of two ways, we can refer to/use: Copy Code code as follows: #方式一 $ch = Curl_init (' http://www.jb51.net '); curl_setopt ($ch, Curlopt_returntransfer, 1); Curl_exec ($ch); Echo Curl_getinfo ($ch,

Perfect solution for PHP cannot modify header information problem _php tips

I have encountered this problem, online to find this solution, the collection ofPHP Friends must have encountered a problem: the header function to change the HTTP protocol header, there will be a similar format in the following warning: Copy

PHP Session Exit Login Problem _php Skills

In PHP, if you use a session to determine whether a user is logged in or out, you can do so: Session_Start ();Session_destroy (); The session indicates that it has ended. Next sentence should write JS, so that the page jump. If it is a frames

Different _php techniques for PHP var_export and var_dump output

Problem foundWhile tracking the Yratings_get_targets,Error_log (Var_export (Yblog_mspconfiginit ("ratings"), true); always print out yblog_mspconfiginit ("ratings") return is null Cause I thought it was impossible to build a connection with DB and

The filtering method of special symbol in PHP string introduction _php Tips

Sometimes we encounter the problem of special characters in the filter string, this article provides a way to handle special strings, there may be omissions, if the reader found that you can leave a message to tell me, thank you. Copy Code

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