PHP

Download Authnum. class. phpCopy codeThe Code is as follows:Session_start ();Class Authnum {// Image object, width, height, and verification code lengthPrivate $ im;Private $ im_width;Private $ im_height;Private $ len;// Random string, Y axis

The complete format of printf format control:%-0 m. n l or h charactersThe following describes the composition formats:① %: Indicates the starting symbol of the format description, which is indispensable.②-: "Yes" indicates the left-aligned output.

The number in the original array is split into "single" bits.The following is a self-written function:Copy codeThe Code is as follows:Function splitStrToArray_mine ($ array){$ New_array = array ();Foreach ($ array as $ value){$ Value = (string) $

Copy codeThe Code is as follows:$ Arr = array (234 );For ($ I = 1; $ I For ($ j = count ($ arr)-1; $ j >=$ I; $ j --){If ($ arr [$ j] $ Temp = $ arr [$ J-1];$ Arr [$ J-1] = $ arr [$ j];$ Arr [$ j] = $ temp;}}}Basic Concepts The basic concept of

This is the main issue discussed today. The instructions in the PHP help document on triggering PHP download through the header are relatively simple, and there are few articles on this page on the Internet. Many articles cannot achieve the desired

Copy codeThe Code is as follows://-Delete Multiple Static pages generated by an article//-The generated article is named 5.html 5_2.html 5_3.html/*------------------*/Function delStaticHtml ($ article_id){Global $ db;$ SQL = "SELECT 'Post _ time'

Copy codeThe Code is as follows:/**-----------------* @ File: 5.php* @ Function: arr2str* @ Copyright: 2002-2009 Xingmo Inc* @ Author: Fanglor * @ Date: 2010-06-25* @ Update:*-----------------*/$ Fruits = array ("Fruits" => array ("a" => "orange",

1. Chinese Character truncation functions supported by UTF-8 and GB2312 Copy codeThe Code is as follows:/*Chinese character truncation functions supported by Utf-8 and gb2312Cut_str (string, truncation length, start length, encoding );The default

Due to the fact that php does not support multithreading, the efficiency of Developing Crawler programs is not high. At this time, you often need to use Curl Multi Functions to access multiple URLs concurrently and in multiple threads. Since Curl

Question proposalThe netizen bercmisir left a message in the hospital. The document about call_user_func function in the php manual is roughly as follows:Http://php.net/manual/en/function.call-user-func.phpParameter has the following sentence:Note:

Definition and usage The trim () function removes spaces and other predefined characters from both ends of the string.Syntax Trim (string, charlist) parameter descriptionString is required. Specifies the string to be checked.Charlist is optional.

If you get a uid list with more than one million lines, the format is as follows:Copy codeThe Code is as follows:100010001000100110001002......10001000......10001111 In fact, the php array feature is used to sort the values. Let's take a look at the

The is_file () function checks whether the specified file name is a normal file.Is_file-Tells whether the filename is a regular fileUsageBool is_file (string $ filename) $ file is a required ParameterReturns TRUE if the object exists and is

After complicated judgment and calculation, the IP address retrieval FunctionCopy codeThe Code is as follows:Function getIP (){If (getenv ('HTTP _ CLIENT_IP ')){$ Ip = getenv ('HTTP _ CLIENT_IP ');}Elseif (getenv ('HTTP _ X_FORWARDED_FOR ')){$ Ip =

For this reason, many security researchers recommend disabling pointing to allow_url_fopen in the php. ini configuration. Unfortunately, many people who recommend this method do not realize that this will destroy many applications and cannot

Recently, I have seen a clever method. The principle is:$ Var_a = 'var _ B ';$ Var_a = 'test ';Echo $ var_ B; Is 'test'So we can handle it like thisCopy codeThe Code is as follows:Foreach (array ('_ cookies',' _ Post', '_ get') as $ _

1. If a method can be static, declare it as static, and the speed can be increased by 1/4;2. The echo efficiency is higher than that of print. Because echo does not return a value, print returns an integer;3. Set the maximum number of cycles before

In_array(PHP 4, PHP 5)In_array-check whether a value exists in the arrayDescriptionCopy codeThe Code is as follows: bool in_array (mixed $ needle, array $ haystack [, bool $ strict])Search for needle in haystack. If yes, TRUE is returned. Otherwise,

This is one collected a long time ago. I don't know who wrote it, but there is no problem after testing ~JavaScript codeCopy codeThe Code is as follows:Function phpUnescape ($ escstr){Preg_match_all ("/% u [0-9A-Za-z] {4} | %. {2} | [0-9a-zA-Z. +-_]

Smarty can encode the url directly, for example, But it does not seem to have been found in smarttemplate. Because the link is submitted by js, rather than the form, it cannot be automatically encoded.Solution: Use js to encode the Chinese