PHP Tutorials

Why is it called SPL, and why isn't he adding PHP instead of the usual PHP built-in method, or adding it as an extension? Always knew that there was this thing, but it didn't seem to work too much, but I saw it in the frame last week. ~~~ Reply

The code is as follows: Judging remote Files function Check_remote_file_exists ($url) { $curl = Curl_init ($url); Do not retrieve data curl_setopt ($curl, Curlopt_nobody, true); Send Request $result = curl_exec ($curl); $found = false; If the

This tutorial introduces some of the most important error detection methods in PHP. We'll explain the different ways to handle the error: Simple "die ()" statement Custom errors and error triggers Error Reporting Basic error handling: Using the

Access to the site in Google Chrome, can only load a portion of the image and video files stored on the seven cattle, occupy all (6) Scokets, the browser has been prompted to request the available sockets Do not know how to solve, hope that the

When using curl in PHP, you must first open Extension=php_curl.dll in front of the php.ini; go, Curl is a built-in browser in PHP, it can imitate the user browsing information for web browsing, and so on, see an example, the code is as

Use Sublimetext often encounter less write a quotation mark, semicolon, or copy the code block when the variable name is undefined, it will take some time to troubleshoot, do you have a good recommendation? Reply content: Use Sublimetext often

PHP supports two abstract methods of accessing the inner elements of the current namespace, __namespace__ Magic constants and NAMESPACE keywords. The value of the constant __namespace__ is a string containing the name of the current namespace. In

A few days ago the site has been injected, and now I give you to introduce PHP to prevent SQL injection of several of the processing functions, such as PHP addslashes (), mysql_real_escape_string (), the MySQL operation function (), Mysql_escape

Allowing the external fully qualified name to be referenced or imported through an alias is an important feature of the namespace. This is somewhat similar to the ability to create symbolic connections to other files or directories in a UNIX-like

The printf () function is a formatted output function that is typically used to output information to a standard output device in a prescribed format. This function is often used when writing programs. The prototype of the function is: int printf

The way to get Http_user_agent is simple, like the PHP code: Copy the code code as follows: ?> Copy the code code as follows: ?> Both of these can be user-agents and IP information, preferably with regular expressions, filtering out information. —

Strtotime (String $ time [, int $ now]) int strtotime (string $time [, int $now] This function expects to get a date format containing US English and will attempt to parse it into a Unix timestamp ( How many seconds since January 1, 1970 00:00:00

Previously, we explored the PHP cache technology in depth, which mainly referred to the data cache. Data cache mainly refers to the database query cache, each time access to the page, will first detect the corresponding cache data exists, if not

The basic assignment operator is "=". At first you might think it's "equal", not really. It actually means assigning the value of the right expression to the left operand. The value of the assignment expression is the value assigned. In other words,

Union and UNION ALL differences If we need to display the results of the two SELECT statements as a whole, we need to use the union or UNION ALL keyword. Union (or union) is the function of merging multiple results together to display them. The

Design Database The first step is typically to create a database, unless you are using a third-party database service. When a database is created, an owner is specified to execute and create a new statement. Typically, only the owner (or superuser)

foreach Loop comparison of several programming languages The Foreach Loop, as the "enhanced version" of the "for" loop, has been widely used in several programming languages (Java, C #, PHP) because it can traverse array elements in a simpler way.

PHP contains a number of functions that can be used to manage and record user information, including simple cookies and a full range of user sessions. The session uses the PHP language built-in technology to make the save state as simple as

In PHP, after the php_soap.dll extension is turned on in the php.ini file, soap can be supported. In the SOAP extension library, there are three main objects. 1, SoapServer Defines the functions that can be called and returns the response data when

The BZIP2 function is used to transparently read and write bzip2 (. bz2) Compressed files. This module uses the functions in the»BZIP2 Library of Julian Seward. This module requires BZIP2/LIBBZIP2 version >= 1.0.x. PHP BZIP2 support is not turned