How does php static file return 304? Prompt Page not updated

Private Function _addetag ($file) { $last _modified_time = Filemtime ($file); $etag = Md5_file ($file); Always Send headers Header ("last-modified:". Gmdate ("D, D M Y h:i:s", $last _modified_time). " GMT "); Header

How does PHP save the array as a file format? Instance Code

$file = "./cache/file.cache"; $array = Array ("color" = = Array ("Blue", "Red", "green"), "Size" = = Array ("Small", "medium", "large")); Cache File_put_contents ($file, serialize ($array));//write Cache Read-Out

PHP How to get classification under all subclasses _php cache file Write

yii

static function Getmenutree ($arrCat, $parent _id = 0, $level = 0, $all =true) { Static $arrTree; Use static instead of global if (! $all) $arrTree = '; if (empty ($arrCat)) return FALSE; $level + +; if

PHP basic knowledge of operating MySQL

Mysql_connect () Resource mysql_connect ([string hostname [:p ort] [:/path/to/socket] [, string username] [, string password]]) Example: $conn = @mysql_connect ("localhost", "username", "password") or dir ("Cannot connect to MySQL

How PHP looks for an element in an array

How do I find out if an element exists in the PHP array? Can consider the use of array_key_exists, In_array, Array_search and other functions, this article for everyone to make a brief introduction, interested friends can make a reference.

PHP static variable as an instance of caching tutorial

/** * User request to reset password receiver */ function Requestresetpassword () { Check if the user exists if (!checkuserexists ($_get[' userid ')) { Exit (' Sorry, the user does not exist, please confirm the user

PHP pagination Class Code, support multi-style can be set paging mode

Class Page { private $total;//Total Quantity private $limit;//Returns the limit statement for MySQL private $pageStart;//The Starting value private $pageStop;//End of value private $pageNumber;//display number of pagination

PHP Observer pattern Getting Started example

Class Demosubject implements splsubject{ Private $observers, $value; Public Function __construct () { $this->observers = Array (); } Public function Attach (Splobserver $observer) { $this->observers[] =

Share a php file upload class

//------------------------------------- File Description: File Upload processing class File Author: Jesse Lee Author's homepage: http://bbs.it-home.org Last update: 2011-5-14 //-------------------------------------

PHP Magic function __call () Usage Example

Class a{ Public $name; function Test1 ($a) { echo "test1111"; } function Test2 ($a) { echo "test2222"; } When an object calls a method and the method does not exist, the system automatically calls

PHP arbitrary number of parameters function

function with 2 optional arguments function foo ($arg 1 = ", $arg 2 =") { echo "Arg1: $arg 1\n"; echo "ARG2: $arg 2\n"; } Foo (' Hello ', ' world '); /* Prints: Arg1:hello Arg2:world */

PHP Paging class source code and invocation example

Class Page { Private $total; Total Records private $pagesize;//How many bars are displayed per page Private $limit; Limit Private $page; Current page number Private $pagenum; Total Page number Private $url; Address

PHP Page class code, support pseudo-static PHP paging class

Class page{ Protected $each _disnums;//The number of entries displayed per page protected $nums;//Total number of entries Protected $current _page;//the currently selected page Protected $sub _pages;//pages per display

Classic PHP Pagination Class code

/************************************** file:class.paging.php PHP Pagination Class Code **************************************/ Class paging{ var $sql _results; var $sql _query; var $display _offset;

Example of automatic renaming of files by PHP

Automatically rename files $file = DirName (__file__). ' /new text document. txt '; echo L_rename ($file); function L_rename ($file) { $iCount = 0; $File _type = STRRCHR ($file, '. '); $FilePath = substr ($file, 0,

Share: Example code for a PHP page (paging) class

/** * filename:ext_page.class.php * @package:p Hpbean * Descrīption: Ultra-strong paging class, four paging modes, default to a baidu,google-like paging style. * 2.0 added Features: Support custom style, custom style, support PHP4

PHP two-dimensional array ordering custom functions

A custom function for PHP two-dimensional array sorting, share it, useful friends to see it. The code is as follows: $v) { $keysvalue [$k] = $v [$keys]; } if ($type = = ' asc ') { asort ($keysvalue); } else{

PHP generated CSV displays full Arabic numerals (example)

$arr = Array ( Array (' 111 ', 2222, ' 0555 '), Array (' 222 ', 3333, ' 0666 ') ); $fp = fopen (' t.csv ', ' W '); foreach ($arr as $row) { Fputcsv ($fp, Array_map (' H ', $row)); } Fclose ($FP);

PHP String Lookup find character last occurrence position

$str = ' http://bbs.it-home.org phper,php learning _php Technology _php website Construction _php programmers focus on PHP technology research and learning _ character occurrences '; Echo Substr_count ($str, ' php '). '’; Echo

PHP Paging Class (source + instance)

Share a PHP page class, write well, provide two of the paging class call instance, for everyone to learn the reference. 1,php Pagination Class Code Number = $number; $this-n_p_p = $n _p_p; $this Pages = ceil ($this

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