PHP Tutorials

PHP Tutorial Array sort usort uksort sort function Sort an arrayThe Usort () function uses a user-defined function to sort the array.*/ function cmp ($a, $b)//user-defined callback function { if ($a = = $b)//If two parameters are equal {

PHP Tutorial Regular expression validation numbers Non-negative floating-point number (positive floating point + 0): ^d+ (. d+)? $Positive floating-point number ^ ([0-9]+.[ 0-9]*[1-9][0-9]*) | ([0-9]*[1-9][0-9]*. [0-9]+) | ([0-9]*[1-9][0-9]*)) $Non-

This article describes the usage of the two date-time function Date,time common in PHP, and friends who need it can refer to this article. A simple way to tell you: The code is as follows Copy Code 结果为：2009-10-06 16:21:38

PHP source code has been migrated from subversion to Git, and the source is hosted on GitHub, which means the PHP source is easier to maintain and facilitates external contributors to create patches and merge code. 498) this.width=498; '

Definition and usage The strlenThe length string returned by the () function. His function is to calculate the length of the word character, Chinese one word is 2Grammar Strlen (String) Parameter Description String

Create a directory with mkdir there is a bit like dos inside the creation of the directory Oh, the method is very simple, about the deletion of the directory, here with the rmdir, but only delete empty directory, you can not delete files or folders

In PHPThere is a name in StrtotimeThe function. Strtotime implementation: Gets the timestamp of a date, or gets the timestamp of a time. Strtotime to parse the datetime description of any English text into a UNIX timestamp [convert system time to

Brief introduction After the developer obtains the voucher (how to obtain the voucher), the user can use the voucher to create, query and delete the custom menu of the public account. The custom menu interface implements the following types of

PHP is similar to other cross-platform languages (perhaps Java is not in its columns.:)), as well as regular expression functions. The regular expression function of PHP3.0 is certainly far less than Perl, but it is still sufficient, and the main

The Public platform Messaging interface provides a new way for developers to handle messages. Request a message interface Click Apply to fill in the URL and token, where tokens can be filled out by the developer and used to generate

PHP Tutorial method_exists Detecting whether a function is included in a class The syntax for the method_exists () function is as follows: BOOL Method_exists (Object object, String method_name) The function of the method_exists () function is to

If you are verifying the mailbox first good, if you want to get an article or a string that has an email address, you can use the second one. */ function Funcemail ($STR)//mailbox Regular expression { Return (Preg_match ('/^[_.0-9a-z-a-z-]+@

Preview The development trend of language must be the combination of static and dynamic, flexible and economic Perl is obscure, Python is elegant and clear, Ruby is smart, and PHP is simple Perhaps elegance comes from the attention to detail

Keep reading and you'll find something new! Table A Function Description Instance filesize ($file) !--? php tutorial //get file size in bytesecho ' size is " . FileSize (& #39; myfile.html& #39;). "bytes";

PHP Tutorial intercepts a certain length of string (this function is valid for gb2312 use function Ssubstr ($string, $length, $dot = ' ... ') {Global $charset; if (strlen ($string) return $string;}$string = Str_replace (' & ', ' ' ', ' '),

Yar (yet another RPC framework, the leader asked me why are ya head, hehe, because this name is good) is I 3 months ago, in order to solve a practical problem, and developed a PHP extension, RPC framework, and the existing RPC framework (XML-RPC,

PHP template engine, Smarty,Unlike other template engines, such as Fasttemplate or pattemplate, the main reason is that Smarty will convert the template into a PHP script and eliminate the additional code that will appear in the parsing process for

Arrayis a form of organizing a number of variables of the same type in an orderly manner, in order to deal with them conveniently. The collection of these ordered, homogeneous data elements is called an array. The following describes the array

In PHPComparing cookies in development, Sessionis a session that is stored on the server side, is relatively secure, and does not have a storage length limit like a Cookie. The following is an introduction to the session. Session and Cookie in

Some time ago, my friend asked me to help him write a product comparison function, at that time, just in the Green Sen Digital Mall, point open the Product list, see a product comparison function, and then directly downloaded his JS scrolling file