PHP Tutorials

PHP Tutorial to judge the file types of uploaded files a variety of instance code $array = Array (' jpg ', ' gif ', ' PNG ', ' jpeg '); $PICIMG = '/upfile/upload_pic/thumbnail_1258615556.jpg '; $img = Strtolower ($PICIMG); Get file name extension method One $ext = substr ($img, Strrpos ($img, ' ...

PHP Tutorial Imports Excel into the MySQL Tutorial database tutorial, using Excelparser class Excelparser {private $_data=array (0, ");     Private $_excel_handle; Private $_excel=array ();

$id =isset ($_get[' id ')? $_get[' id ']: '; if (!is_numeric ($id)) {exit ("<script>alert) (' Sorry, the user you accessed is not saved! '); History.back ();</script> "); }else{$sql = "SELECT * From ...

PHP Tutorial Generate HTML static file class program with instance use method class HTML {var $dir;//dir for the htmls (without/) var $rootdir;//root of HTML Files (without/): HTML var $name; HTML file Store path var $dirname; The specified folder name, var $url; To obtain the ...

PHP tutorial Gets the current URL domain name instance code function getServerName () {$ServerName = Strtolower ($_server[' server_name ']?$_server["Server_   NAME ']:$_server[' http_host ']); if (Strpos $ServerN ...

The PHP tutorial saves the uploaded map to the database tutorial and displays the code//Connect to database $errmsg = ""; if (! @mysql tutorial _connect ("localhost", "root", "")) {$errmsg = "cant c ...

PHP tutorial based on IP to determine the user's city program $servername = ' localhost ';   $dbname = ' 8684 '; Database Tutorial Name $dbusername = ' root '; Database username $dbpassword = ' 123456 '; Database Password $link =mysql tutorial _connect ($servername, $dbusername,...

Ob_start: Turn on output buffering ReadFile: reads a file and writes to the output buffer to return the number of bytes read from the file. If the error returns false and an error message is displayed unless invoked in the form of @readfile (). Ob_end_clean (): Clean (erase) of the output buffer and turn off output buffering (clear output buffer)

This is a simple user login verification code Oh, more suitable for beginners in PHP tutorial Oh, let's look at the HTML code <form action=111cnnet.php > <input type=text name=username > <input type=text name=password> <input type=submit Name=password ...

PHP tutorial regular fetch img tag alt src width heigh attribute <?php/* Regular take picture any attribute in img tag/$word = ' <p height= ' align= ' cenetr ' >111 22< /p> <img src= "/upload/images/aaa.jpg" &n ...

PHP Tutorial Unlimited class class trees{private $_keyid = ' Id ';  Private $_keyname = ' Name ';    Private $_keyfid = ' Fid '; function __construct ($keyId = ', $keyName = ', $keyFid = ') {...

Convert full-width digits to half-width digits function Getalabnum ($fnum) {$nums = Array ("0", "1", "2", "3", "4", "5", "6& ...").

PHP Tutorial to determine the file modification time with the DATE function this script when the page was last revised and output as 20 minutes ago, or XX days before the date ... Or even if you don't update too much-20 weeks before the show!   File Name $last _modified = Filemtime ("file.php");   {$timediff = time ()-$last _modified; if ($ ...)

The PHP tutorial determines the page execution time code to determine the time required for the PHP script to execute correctly for a microsecond.         Inserts the code at the top of the page: <?php $mtime = Microtime (); &nbs ...

Classic PHP Tutorial Pagination class-PHP General Page class <?php classes my_lib_pages{private $each _disnums;//The number of entries per page PR ...

PHP Tutorial Scaling Small graph function <?php class My_lib_functions {# ******************************************** # object to array # ************** function Object2array ($obj) {&nb ...

PHP Tutorials Bulk Filter Illegal character function testaddslashes ($array) {if (!GET_MAGIC_QUOTES_GPC ()) {if (Is_array) {($array)) {foreach ($array as $ Key => $val) {&nbs ...

Php:time (), date (), Mktime () php:time (), date (), mktime () Date and time function library {often forgets} Checkdate: Verify the correctness of the date. Date: Formats the time of the server. Strftime: Formats the server's time locally. GETDATE: Get time and date information. Gettimeofday: Get the current time. Gmdate: Get the present and ...

PHP Get file size function and instance tutorial <?php function GetFileSize ($url) {$url = Parse_url ($url); if ($fp = @fsockopen ($url [' Host '],empty ($ url[' Port ']: $url [' Port '], $error)] {fputs ($fp, "get". Empty ($ ...)

PHP addslashes processing $_post $_get Array function This is my one equivalent to an automatic version of the feature used to process the $ _post array useful <?php function add_slashes ($an _array) {foreach ($ An_array as $key => $value) {$new _array[$key ...