This section describes the functions of session_unset () and session_destroy.
Session_unset ()Releases all the $ _ SESSION variables that have been created in the memory, but does not delete the session file or release the corresponding
When $ intTotal is relatively small, for example, the value of $ intRand within 1000 basically does not affect the result, and the execution time of both is similar.
When the value of $ intTotal is greater than 10000 and $ intRand is set to 100,
Share a tutorial on how to solve the problem of empty strings in the array elements obtained by fgetcsv in linux. If you have any need, refer to the example below.
When using CSV to import data, we usually use Windows, and use GBK to edit in Windows
The following two efficient methods for deleting array elements are provided. You can delete the elements by specifying the deletion option. For more information, see php.net.
The Code is as follows:
Copy code
phpfunction
Temporary handling methods for sessions that cannot be automatically removedThe problem is:"The PHP session will keep the information entered when the user enters for the first time, even if you return to the login screen and log on again, it will
First of all, I did not understand this article when I wrote this article. I just used the example from php.net and tried to do it. It was configured in win2000 apache php4p12. the specific steps are as follows: 1. Install JVM (java virtual machine)
Now we have everything we need to write a new file:// Open the file and cut the file length to 0$ Open_file = fopen ("messages.html", "w ");// Write the file header informationFputs ($ open_file, $ header );// A new row// (Use stripSlashes, because
There used to be a very popular web chat room called Star Trekker. I can come to this chat room to thank one of my friends, and even if the chat Friends of Star Trekker are almost not in the same circle as me, I find that for most of them, both are
Script description:Step 1: Add the following code to the AreaStep 2: Add the following code to the Area encryption page source code script paste the source code of your page in the following box, including all tags such as html, head, and body.
1. IntroductionAt present, regular expressions have been widely used in many software applications, including * nix (Linux, Unix, etc.), HP and other operating systems, PHP, C #, Java and other development environments, and many applications can see
More and more mobile phones support the WAP function. Therefore, you should also consider creating your own WML website. This article will introduce how to create a site on the PHP/WML page and use the MySQL database to dynamically update the site
This tutorial provides you with a paging code of the discuz forum type. We have written this code as a function. Let's take a look at it.
This tutorial provides you with a paging code of the discuz forum type. We have written this code as a function.
Var_export -- string representation of the output or returned variableDescriptionMixed var_export (mixed expression [, bool return])
This function returns the structure information about the variables passed to this function. It is similar to
In php, the string similarity similar_text function and the similarity levenshtein function are described in detail. The following describes the string similarity in detail.
Similar_text-calculate the similarity between two stringsInt similar_text
PHP code :--------------------------------------------------------------------------------The introduction below is based on version 2.5, and I do not know if there is a BUG. the OS is win2000, and php should4.1 and later ., I used it several times
Add attachmentAdd an attachmentIt is easy to add one or more attachments. To add attachments, you can call the addAttachment method multiple times to add multiple attachemets.Boolean addAttachment ($ file string, string [$ c_type =
This article provides you with a php tutorial fsockopen to forge the post and get methods. If you are looking for php processing code that spoofs the post and get methods, this is good.
// Fsocket simulate post submission$ Purl = "http: // localhost/
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