PHP Tutorials

[/code] Global $count; $count = 1; if (!isset ($_cookie["Visittime"])) {Setcookie ("Visittime", Date ("y-m-d h:i:s")); Setcookie ("Visitcount", 1); echo "Welcome your first visit to the website!"; } else{ Setcookie ("Visittime", Date ("Y-m-d,h:i:s"

Copy the Code code as follows: $t 1 = Explode ("', Microtime ());// ... Execute code ...$t 2 = Explode ("', Microtime ());Echo ($t 2[1]-$t 1[1]). ' S '. ($t 2[0]-$t 1[0]). ' Ms '; In fact, a little bit of a try, you can find this code has a

This index value in addition to the instant Noodles data record and search, also plays the role of recording date information, the amount of information is considerable. So, how do you restore the index value to the available date information? Date (

Sample1 Copy the Code code as follows: What if I use a function like iconv that has three parameters? If written as: Sample 2 Copy the Code code as follows: An error message is displayed when you execute it. Therefore, the study will find

There's a Web method like this: Copy the Code code as follows: [WebMethod]public string HelloWorld (){Return "Hello World";} OK, everything is ready. In a PHP file, the following wording: The PHP5 itself supports soap invocation of Web Service:

Here we can modify its login mode to HTTP. This allows you to continue using the browser as long as it is not closed. Take the Ubuntu environment, Apt-get installation of phpMyAdmin as an example. Document location

Copy the Code code as follows: function Cleanglobal ($global _array, $arg, $specialchars = true, $default = null) {if (Key_exists ($arg, $global _array) && $global _array[$arg]! = null && $global _array[$arg]! = "") {if ($specialchars) {Return

Copy CodeThe code is as follows: function Imageresize ($srcFile, $toW, $toH, $toFile = ""){if ($toFile = = "") {$toFile = $srcFile;}$info = "";$data = getimagesize ($srcFile, $info);Switch ($data [2]){Case 1:if (!function_exists

Session access Mode (presets: Files) Session.save_handler = Files Session file storage Path (preset:/tmp) Session.save_path =/tmp Session use cookie function (preset: start 1) Session.use_cookies = 1 The name of the session (preset:

The regular expression that we all call now basically refers to a Perl-style regular expression. POSIX-style regular expressions are basically no one to use, so from PHP5.3, it is deprecated, probably to the next version of PHP will be the relevant

began to think that such a function seems difficult, before also done a encyclopedia of things, which also involves the function of classification, but not an infinite classification, but a simple implementation of a fixed level three classification,

Copy CodeThe code is as follows: echo Mktime (11,25,0,9,5,2010);//the same as timeEcho Microtime ();echo Mktime (0,0,0,1,1,1970);?> The output is 1283657290, 1283657100, 0.88533200 1283657290, 25200, respectively. From the last value, we know

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

Example: Array_unique (Array (1, 1, 2)); And his result is Array (2) { [0]=> Int (1) [2]=> Int (2) } This is not a numeric array, just do json_encode, will output a JSON object, not an array {"0": 1, "2": 2} If this time on the page JS need is [to]

Copy CodeThe code is as follows: /* Traversal of arrays** 1. Loop through the array using the FOR statement* 1. Other languages (only this way)* 2.PHP in this way is not the preferred way* 3. The array must be an indexed array, and the subscript

Google or Baidu, a lot of such problems, the solution is to modify the php.ini, the Allow_url_fopen to enable, change to Allow_url_fopen = On This can solve some people's problems, it is said in PHP.ini, there are two options: Allow_url_fopen =on

From. NET to do PHP4 years, and recently began to pursue high performance ~ ~ So I started to think it was time to write a blog. Come and find something first ~ Copy the Code code as follows: $arr = Array (' Attr1 ' = 1,' Attr2 ' = 1,' Attr3 ' = 1,)

Form uploads can only be used in MULTIPART/FORM-DATA encoded format $_files system functions; $_files[' myFile ' [' name '] file name $_files[' myFile ' [' type '] file types, limited by

Let me tell you about the loading process for this system. Define the root directory, define the Include directory Loading core Files Config file ' config.inc.php ' global function ' global.func.php ' Directory operation function ' dir.func.php

Such as: Copy the Code code as follows: Then the upload.php can be used directly $_files $_post $_get function to get the contents of the form. Today we focus on the $_files function. When the client commits, we get an array of $_files The