Scope of global variables in PHP _php tutorial

Recently in the development of a discuz! plug-in, I encountered a problem today, I in a function in the background to call the plug-in variable data return null value, test a few times after the unexpected thought should be not loaded cache caused,

PHP is how to run, PHP is running _php tutorial

How PHP is running, PHP is running This article, examine how PHP code is interpreted and executed, and the life cycle of PHP scripts. Overview The start of the PHP service. Strictly speaking, the related process of PHP does not need to be started

PHP include and require usage introduction _php tutorial

There are two ways to refer to a file: Require and include. Two ways to provide different use elasticity. Require use methods such as require ("myrequirefile.php");. This function is usually placed at the front of the PHP program, and before the PHP

PHP programmers often make 11 mistakes _php tutorial

1. Use MyISAM instead of InnoDB The MySQL tutorial has many database tutorial engines, but the most likely thing you'll encounter is MyISAM and InnoDB. MySQL is using MyISAM by default. However, in many cases this is a bad choice unless you are

Dynamic Web PHP function Quick Check Daquan summary _php tutorial

Abs: Get absolute value. Acos: Gets the inverse cosine value. Ada_afetch: Gets the returned column of the database. Ada_autocommit: Switch automatic change function. Ada_close: Close Adabas D link. Ada_commit: Change Adabas D database. Ada_connect:

Strtr function actually appears catchable fatal error_php tutorial

Strtr function actually appears catchable fatal error Error message: Catchable fatal error:object of class variant could not being converted to string in d:wwwphpnowhtdocsxmlincxmlclass.php on Line 160 160 lines of code: return $tab 1.STRTR

PHP Curl Simulation Login forum and collect data instance _php tutorial

This article gives you a brief introduction to the PHP Curl Simulation Landing Forum and collect data instances, if you are interested in using the Curl Simulation login function to enter the reference. To emulate a browser's access to a website, it

The Magic method in PHP some study notes _php tutorial

Magic method is in the PHP5 in the beginning, they have a magic function, can give me a lot of benefits of development, the following I will introduce the magic method of some usage and in PHP have those magic methods. Magic method is a two

PHP header 301/404 Jump to note the detailed _php tutorial

If your page appears 301 or 404 for the user experience is a very serious problem, so we do php header301 or 404 must be careful and careful, and I came to see. 301 Jump The code is as follows Copy Code Header (' http/1.1

Php-perl hashing algorithm implementation (TIMES33 hashing algorithm) _php tutorial

Copy CodeThe code is as follows: APR_DECLARE_NONSTD (unsigned int) apr_hashfunc_default (const char *char_key, apr_ssize_t *klen) { unsigned int hash = 0; Const unsigned char *key = (const unsigned char *) Char_key; const unsigned char *p; apr_ssize_

The APC cache in PHP details the APC module installation _php Tutorial

1. Introduction to APC Cache APC, the full name is alternative PHP cache, the official translation is called "Optional PHP Caching". It provides us with a framework for caching and optimizing PHP's intermediate code. The APC cache is divided into

PHP Image Watermark Chinese garbled solution _php Tutorial

PHP Image Watermark Chinese garbled solution is to be transferred to a Chinese font in Morocco, if you create a watermark in Chinese, and did not load the relevant font, then the Chinese will certainly be garbled, if it is the English letter load

Json_decode returning an array or object in PHP _php tutorial

1.json_decode () Json_decode (PHP 5 >= 5.2.0, PECL json >= 1.2.0) json_decode-encoding a JSON-formatted string Description Mixed Json_decode (String $json [, bool $assoc]) Accept a JSON-formatted string and convert it to a PHP

Replace PHP strings with asterisks or other characters (phone number, id) _php Tutorial

A character in a string specified in PHP is replaced with an asterisk we have a function that can be implemented such as Substr,preg_replace,substr_replace and so on, I give these three functions respectively to introduce an example, mainly talk

PHP array sorting function How to use _php tutorial

There are many data sorting functions in PHP, including one-dimensional array sorting function and two-dimensional array ordering function, including simple sort function ascending sort, rsort descending order, etc. The PHP array sort function

Three PHP Chinese verification code generation and invocation Method _php Tutorial

Three PHP Chinese code generation and invocation method in PHP to generate a Chinese verification code must be done with the generated verification code is not the same operation, because the GD function only accepts UTF8 format encoded text, so in

A detailed description of hashing creation and validation methods in PHP5 _php tutorial

If you use the php5.5 version, we have a much simpler approach to hash creation and validation, and PHP 5.5 provides us with 4 functions: Password_get_info (), Password_hash (), Password_needs_rehash () , and Password_verify (), with the four of

PHP generation thumbnail Classic class _php tutorial

From the foreign web site found a php generated thumbnail code, the need for friends can refer to. The code is as follows Copy Code /** File:SimpleImage.php* Author:simon Jarvis* copyright:2006 Simon Jarvis* date:08/11

PHP Two common examples of curl function _php Tutorial

example, Analog landing The code is as follows /*** Analog Login* $url Request Address* $post data required for post* Cookies that are taken $cookie landing* $cookiejar where the cookie is to be stored such

Using PHP to display search engine keywords _php tutorial

The following are the relevant implementation codes: Copy the Code code as follows: /*Plugin Name:display-search-keywordsPlugin uri:http://www.imyxiao.com/1531.htmlDescription: When a visitor comes to your blog via a search engine, this plugin

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