PHP Tutorials

Copy CodeThe code is as follows: /****** backing up the database structure ******//*Function name: Table2sql ()function function: Convert the structure of a table into SQLFunction parameters: $table: The name of the table to extractReturn value:

Remove empty character elements from an array Copy the Code code as follows: $str 1_array=array (' site ', ' ', ' http://www.jb51.net ', ' ', ' 1654 ', ');$str 1_array=array_filter ($str 1_array);Print_r ($str 1_array);?> Show Results: Copy

Array_search () Definition and usage The Array_search () function, like In_array (), looks for a key value in the array. If the value is found, the key name of the matching element is returned. Returns False if it is not found. Before PHP 4.2.0, the

Today, in doing something about the ping service, because do not want to put the ping service address into the database, so bad, ping service is not an inefficient thing, and then put into the database, not only to reduce the efficiency of the

The following is the code for the basic registry class: Copy the Code code as follows: Class Registry {private static $instance;private $request;//The contents class of the RegistryPrivate Function __construct () {}//This class, not

I have written a registry class before, but that one cannot be registered with multiple classes, and the following arrays are used to store the class. Copy the Code code as follows: Basic classClass WebSite {//a very simple base classPrivate

PHP Ping Service code actually in the past I have written a class, but, a lot of friends add my friend said, see not quite understand, that is in the form of class, maybe if directly put in the code directly with not very line, today hair can

This time support upload 2 images, upload the original image and poor quality diagram, the original image for the preservation of high-quality pictures, poor quality of the picture for the page display. PHP Code Copy the Code code as follows:

I have passed a small test to check which function was faster to create a new file. File_put_contents vs Touch Copy the Code code as follows: for ($i =; $i {File_put_contents (' Dir/file '. $i, ');}?> Average time:0,1145s Copy the Code code

Krsort () Definition and usage The Krsort () function reverses the array by key, preserving the original key for the set value. The Second optional parameter contains an additional sort flag. Returns TRUE if successful, otherwise FALSE is

Array_key_exists () Definition and usage The array_key_exists () function determines whether the specified key exists in an array, returns TRUE if the key exists, or false otherwise. Grammar Array_key_exists (Key,array) Parameter description Key is

Scheduled Tasks Copy the Code code as follows: Ignore_user_abort (); User Close Browser program still executesSet_time_limit (0); No limit on program run time$interval = 3; Program Cycle time interval seconds$link = mysql_connect (' localhost ', '

Let's look at a ternary operation: Copy the Code code as follows: $a =1; $b =2; $c =3; $d = 4;echo $a ?> Generally in other languages (such as C or Java) Rules, the above code of the Operation logic is: Copy the Code code as follows: $a

There are times when we are designing a database, such as: There is a Type field in the article table, he stores the article type, there are 1 headlines, 2 recommended, 3 hot, 4 graphics ..... 11,12,13, wait. Now there is an article he is a headline,

First of all, my advice is to encounter problems Ferry, PHP manual over 1001 times, the problem solved. I Baidu a bit, netizens give the answer a variety of. First correct Baidu to a wrong way: Copy the Code code as follows: $sql = "Update Table

I. Numeric data types Numeric or numeric data is typically two types of double and int in PHP. PHP is a loosely typed scripting language, paying attention to the way the type is converted. Copy the Code code as follows: $a = ' 5 ';A string of

Objective As the name implies, the file cache to memory cache is the data stored in the file into memory, the implementation of disk operations into memory operations, which can greatly improve the speed of data access, and to achieve distributed

With Phpmail This class, you don't have to worry about it. This is a foreigner wrote a class, we just "take doctrine". Here is a function that is written based on the Send () method inside the class: Copy the Code code as follows: function

Copy CodeThe code is as follows: function Listfiles ($path) {$result = Array ();foreach (Glob ($path. ' \\'." * ") as $item) {$result [Strtolower ($item)] = $item;if (Is_dir ($item)) {$result + = Listfiles ($item);}}return $result;}$path = ' E:\

Copy CodeThe code is as follows: /*** Get hot words from Baidu* @user Little Jay* @from http://www.isharey.com/?p=354* @return Array returns the hot Word data from Baidu (array return)*/function Getbaiduhotkeyword (){$templateRss =