PHP Tutorials

Copy CodeThe code is as follows: $arr = Array (345,4,17,6,52,16,58,69,32,8,234); for ($i =1; $i For ($j =count ($arr)-1; $j >= $i; $j-) { if ($arr [$j]$temp = $arr [$j-1]; $arr [$j-1] = $arr [$j]; $arr [$j] = $temp; } } } Basic Concepts

I have been very confused. In the document, said the more obscure, is move_uploaded_file this function, added a step check, check whether the file is HTTP POST upload, As for, how to check the not said. I google for a while, have not been able

My environment is Appsver package, The most common codes that appear on the internet to solve Chinese garbled displays are: First Type: Pdo::__construct ($dsn, $user, $pass, array (Pdo::mysql_attr_init_command = "SET NAMES ' UTF8 ';")); I

As soon as I say this, a lot of comments will be criticized: you are wrong, wrong, completely wrong. Good programmers need to have the skills to communicate and to have the ability to work with others. You're not alone in the team! In fact, people

This involves 4 kinds of header types: Last-modified (last modification time); Expires (validity period); Pragma (compiling instructions); Cache-control (cache control); The first three headers belong to the HTTP1.0 standard. The header

A: The concept of the queue, data structure A queue is a linear table in which operations are constrained. Only one end of the table is allowed to be inserted, while the other end is a linear table that deletes elements. The end of the queue (rear)

The first method: If you do not affect the normal execution of the program, you can use the method of shielding The first line of the code can be added Error_reporting (e_all ^ e_notice); Turn off warnings for notice errors The second method:

What is the principle of PHP's exception mechanism? What is the last zend_handle_exception for each OP array that can be executed independently in PHP? Let's start with a question, last week, Blue5tar asked a question: "For the following code,

Download the installation can be used, such a lot of integrated development environment, if you have to follow the other books installed Php+mysql development environment, debugging will not have to change. I am renting space, local debugging is OK,

SUBSTR (); SUBSTR (str,start,length); Example: substr (' PHP is very good language ', 4,5); The output is the is ve; When the length of the START>STR, it is returned as (); substr (' PHP is very good language ', 26,5); substr (' PHP is very

The goal of the rule is to change the reporting part of php.ini, so that notice does not show error_reporting = E_all; Display all errors, warnings and notices Change into error_reporting = e_error & ~e_notice & ~e_warning Or Isset ($_get["page"])

is to "split" the number in the original array into a "single" bit. Here is a function that I wrote: Copy CodeThe code is as follows: function Splitstrtoarray_mine ($array) { $new _array = Array (); foreach ($array as $value) { $value = (string)

Instance 15 directory creation, deletion Copy CodeThe code is as follows: $dirfile = "folder"; $dirfile =iconv ("UTF-8", "GB2312", $dirfile);//transcoding, otherwise you will see Windows is garbled, but the program can operate normally, read the

Copy CodeThe code is as follows: $str =preg_replace ("/\s+/", "", $str); Filter Excess Return $str =preg_replace ("/ $str =preg_replace ("//si", "", $str); Comments $str =preg_replace ("//si "," ", $str); Filter DOCTYPE $str =preg_replace ("//si ","

Copy CodeThe code is as follows: Interface Arrayaccess Boolean offsetexists ($index) Mixed Offsetget ($index) void Offsetset ($index, $newvalue) void Offsetunset ($index) The following example shows how to use this interface, but the example is

So, to prevent this information from appearing, when I use foreach, the arguments are forced to type conversions, the situation is as follows: foreach (array) $arr as $key = = $value); This has been peaceful, just a few days ago, suddenly there was

Reproduce the problem with a piece of code first At first glance, the results are puzzling: Copy CodeThe code is as follows: $string = Hello World EOF; $data = simplexml_load_string ($string);

Copy CodeThe code is as follows: $dir = "./"; Open a known directory, and proceed to read its contents if (Is_dir ($dir)) { if ($dh = Opendir ($dir)) { while (($file = Readdir ($DH))!== false) { echo "FileName: $file: filetype:". FileType ($dir.

Method One, use the {include file= "CHILD.TPL"} in the parent template to include the child template directly Advantages: 1, is advantageous to the module division and the template reuse. 2. When the nesting level is not many, the structure of the

Universal Cache TechnologyData cache: The data cache refers to the database query cache, each time access to the page, will first detect the corresponding cache data exists, if not exist, connect to the database, get the data, and the query results