PHP Tutorials

We all know that using PHP mkdir to create a multi-level directory like "a/b/c" folder will prompt because the directory does not exist and create a failure, but the project often encountered this need to create a multilevel directory, how to do it?

How to compress images in PHP PHP program development often involves the generation of thumbnails, using PHP to generate thumbnails of the process itself is not difficult. But do you know that PHP optimizes the size and quality of thumbnail images

PHP gets the method for each month in a certain period of time, and returns an array of these months, with the following code: * Generate an array of months from the start month to the end month* @param int $start start timestamp* @param int

PHP generates random password functions, when the need to generate random numbers or generate random passwords can be used, the need for friends can refer to, the specific function code is as follows: PHP generates random number cipher function

Share a function code that uses PHP to get remote pictures and save remote picture downloads to Local: /** Function: PHP perfect implementation download remote picture saved to local* Parameters: File URL, save file directory, save file name, use

As a qualified PHP programmer, some basic knowledge is necessary to know, such as the difference between 0 and null, about this difference. The following is a few examples of simple analysis, in which the truth, imaginative achievement here,

PHP gets the last day of any month, with the following specific examples: echo Date (' y-m-t '); Get the last day of the current monthecho Date (' Y-m-t ', Strtotime ("09.13.1987")); Gets the last day of the specified monthGets the last day of

There are two functions in PHP--at least two are there any other I do not know, can achieve the digital 0 format, Str_pad (), sprintf () Now the two functions are analyzed in detail: Str_pad as the name implies, this function is for strings. This

The difference between a cookie and a session in PHP: 1. The cookie data is stored on the client's browser and the session data is placed on the server. 2, the cookie is not very safe, others can be stored in the local cookie and cookie spoofing,

PHP restrictions can only be entered in English characters and numbers, the regular expression is as follows: $password = ' ABC12 ';if (!preg_match ("/^ ([a-z]+[0-9]+) | ( [0-9]+[a-z]+)] [a-z0-9]*$/i ", $password)) {Echo ' Password must be a

This article is just a case of a simple introduction of the PHP implementation of the MVC principle, in fact, most of the framework of MVC is based on this principle to achieve, not much nonsense, directly on the code amount! I. Structure of the

Obtain the MAC address source of the network card; the physical (MAC) address of the Win/linux system is currently supported for the machine card /**Obtain the MAC address source of the network card; currently supports Win/linux systemGet the

/** Parameters are start timestamp, end timestamp, respectively*/function Timelist ($beginTimeStamp, $endTimeStamp) {if (!is_numeric ($beginTimeStamp) | |! Is_numeric ($endTimeStamp) | | ($endTimeStamp $tmp =array (); for ($i = $beginTimeStamp;

When doing a PHP website project, you often import data documents online. Using PHP to generate Word documents, the resulting Word file can be opened with software such as Word,openoffice,wps. The specific code is as follows: function Word

Zebra_form builds a browser-compatible HTML form with client + server checksum and looks good, and will be compared to the development time. Zebra_form is a good way to handle these processes, and it takes just a few lines of code to help us build a

Using PHP to record the origin of search engines and user search input keywords, the code is as follows: function Recordurlkeywords ($url) {$spider =array (' Baidu. ' = ' Baidu ', ' Google. ' = ' Google ', ' Soso. ' = ' Search ', ' Sogou. '

The PHP analog Post request method is mainly available in two ways, through fsocket and through curl. Here's a quick example of two examples of how PHP uses both methods to simulate a POST request. (1) PHP simulated post submission request via

When online generation of files with Chinese characters, in order to run the program garbled, we need to save the online generated file as UTF8 format, so that the program is not garbled, we all know that PHP can directly create a file to save the

For a one-dimensional array to remove duplicate values, the PHP system function Array_unique can be used directly, but the function cannot remove duplicate values from the multidimensional array. Here is a function to remove duplicate values from

The following is the source code of PHP generated verification code: Session_Start ();Session_register (' Checkcode ');PHP4.2 not required to register session variable with Session_register ()$type = ' gif ';$width = 45;$height = 20;Header ("