PHP Tutorials

In_array () Definition and usage The In_array () function searches the array for the given value. Grammar In_array (Value,array,type) Parameter description Value is required. Specifies the value to search for in the array. Array required. Specifies

Copy CodeThe code is as follows: Class Sessiontodb { Private $_path = null; Private $_name = null; Private $_pdo = null; Private $_ip = null; Private $_maxlifetime = 0; Public function __construct (PDO $pdo) { Session_set_save_handler ( Array (&

first, Chinese interception: mb_substr () Mb_substr ($str, $start, $length, $encoding) $str, the string that needs to be truncated $start, starting at 0 at the beginning of the truncation $length, the number of words to intercept $encoding, page

array_intersect () Definition and usage The Array_intersect () function returns an array of intersections of two or more arrays. The result array contains all of the values in the array that are being compared and also in all other parameter

But on the server, many use Linux server, the source program uses UTF-8, so it is easy to produce character encoding problem. If you just transcode the CSV file to UTF-8 so that there is no problem on the Windows Server, On RedHat5.5, in the array

To read and write files in PHP, you can use the built-in functions: 1.fopen (create file and open file) Grammar: Copy CodeThe code is as follows: fopen (Filename,mode) FileName, which specifies the file to open. mode, open the file's schema, the

Way 1:sockets Copy CodeThe code is as follows: $a = "http://jb51.net/content/uploadfile/201106/thum-f3ccdd27d2000e3f9255a7e3e2c4880020110622095243.jpg"; $local = ' socket1.gif '; $AA = getimg ($a, $local); /* *@ Full Picture Address *@ the file

Array_flip () Definition and usage The Array_flip () function swaps the key name of the array with its corresponding value, that is, the key name becomes the value, and the value becomes the key name. The Array_flip () function returns an inverted

Array_push () Definition and usage The Array_push () function adds one or more elements (into the stack) to the end of the array of the first parameter, and then returns the length of the new array. The function equals multiple calls $array [] =

In front of this site an article introduced how to achieve the release of Weibo said: php+mysql+jquery implementation of the microblog program--jquery, this example will be based on its database structure, with a dynamic way to display the said

Copy CodeThe code is as follows: ' Asdfgasgsad '); > This sentence means to include ' _sidemenu.php ' and pass a series of parameters to its page, ' _sidemenu.php ' page can directly use the value in the $form variable Op_include_box ('

Copy the Code code as follows: This function is mainly to use the file modification time function Filemtime and the current time for subtraction to determine whether the content is updated. $cahetime =2;//Setting the expiration time $cahefile =

Copy CodeThe code is as follows: 　　 　　 No refresh upload file 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 PHP code 　　 Sleep (2); $fileTypes = array (' jpg ', ' png ', ' gif ', ' bmp '); $result = null; $uploadDir =

Share a function that is actually in use: Copy CodeThe code is as follows: /* More stable than file_get_contents! The $timeout is the time-out, in seconds, and the default is 1s. */ function curl_get_contents ($url, $timeout =1) { $curlHandle =

One, gets the UNIX timestamp for the specified dateStrtotime ("2009-1-22") examples are as follows: 1.echo strtotime ("2009-1-22") Results: 1232553600 Description: Return January 22, 2009 0:0 0 seconds timestamp two, get English text date

Array_sum () Definition and usageThe Array_sum () function returns the sum of all the values in the array. If all values are integers, an integer value is returned. If one or more of the values are floating-point numbers, a floating-point number is

Array_key_exists () Definition and usageThe 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

However, there is a situation that cannot be prevented: After the user submits the form, click the browser Back button to return to the form page, this time the browser will be directly from the cache to remove the page, so token verification must

Array_combine () Definition and usageThe Array_combine () function creates a new array by merging two arrays, one of which is the key name and the value of the other array is the key value. If one of the arrays is empty, or if the number of

problem description; Get the thumbnail and video time length of FLV video Google a half-day discovery can use FFmpeg to get some information about the video, first introduce FFMEPG Here's a quick look: FFmpeg is a complete solution for