PHP

Today, I sent a question to my microblog: In my interview, I often ask a question: "How to set a 30-minute session expired?", we do not think that seemingly simple, here bread contains a lot of knowledge, especially suitable for the examination of

Today, when I was revising my thesis online, I encountered the Iconv function. Learn a bit Header (' Content-type:application/vnd.ms-excel;charset=utf-8 '); $name =iconv (' utf-8 ', ' gb2312 ', $data [' Year ']. Year, $data [' period ']. '

In the previous PHP tutorial on the PHP GD Library can achieve remote picture download, but that just downloaded a picture, the principle is the same, to download a Web page of all the pictures as long as the use of regular expressions to judge,

Because today want to write a remote download the picture class, warm up in advance write a PHP GD library to achieve remote picture download function, of course, curl to achieve better, PHP GD library to achieve remote picture download function of

involves many aspects, such as PHP code specifications, PHP file naming code, Web site development process, Web site security and maintenance. As the beginning of the PHP development specification, I from a pure PHP developer's point of view, I

With the technology progress, the field of SMS transceiver has produced three modes in time: Block mode, text mode based on at instruction, PDU mode based on at instruction. Among them, TEXT mode is relatively simple, a variety of Nokia phones are

Re-understanding Unicode and UTF8 encoding Until today, to be exact, I just realized that UTF-8 encoding and Unicode coding are not the same, and that there is a difference between embarrassingThere is a certain connection between them, to see the

Using the object-oriented knowledge of PHP to design a graphics calculator, but also the use of abstract knowledge, the calculator can calculate the circumference and area of the triangle, as well as the circumference and area of the rectangle. This

What is Snoopy? (Download Snoopy)Snoopy is a PHP class that mimics the functionality of a Web browser, which completes the task of getting web content and sending forms.Some features of Snoopy:* Easy to crawl the content of the Web page* Easy to

This article illustrates the method of dynamically adding URL query parameters to PHP. Share to everyone for your reference. The specific analysis is as follows: This code can dynamically add key-value query parameters to the URL, and if the

Copy Code code as follows: /** * Adapter Mode * * Convert the interface of a class to another interface that the customer expects, and those classes that are not compatible to work together can work together */ This is the original type.

PHP predefined 6 interfaces are described below: 1.Traversable Traversal Interface Oh! In fact, it is not an interface that can be used in PHP, internal classes can be used, it has a purpose is to detect whether a class can be traversed.

function bool Array_multisort (array & $arr [, Mixed $arg = Sort_asc [, Mixed $arg = Sort_regular [, mixed $ ...]]) Parameter description: function to sort multiple arrays or multidimensional arrays The first argument is an array, and each

Copy Code code as follows: $g _books = Array (); $g _elem = null; function startelement ($parser, $name, $attrs) { Global $g _books, $g _elem; if ($name = = ' book ') $g _books []= Array (); $g _elem = $name; } function EndElement

Later, I tracked and found that this kind of situation is closely related to the PHP file_get_contents () function. In large and medium-sized websites, API interface calls based on HTTP protocol are commonplace. PHP programmers like to use the

This article illustrates how many palindrome numbers are in the middle of a two-digit PHP output. Share to everyone for your reference. The specific analysis is as follows: "Palindrome number" is a number. such as: 98789, this number is reading is 9

Next () Definition and usage The next () function moves the pointer to the current element to the position of the next element and returns the value of the element. If the internal pointer already exceeds the last element of the array, the

This example describes how PHP separates file directories and file names from the full file path. Share to everyone for your reference. The specific analysis is as follows: The basename () function is used to get the file name from the pathThe

For a PHP array, how do you delete the first element or the last element of the array? In fact, these two processes can be done with the functions of PHP array_pop and Array_shift to complete, the following is a specific description of how to

This article describes the method of PHP implementation lazy loading. Share to everyone for your reference. The specific analysis is as follows: Ordinary PHP loading is through the include (), require () and other methods to load the external file,