Recommended 10 articles for PHP srand () functions

Source: Internet
Author: User
Tags shuffle
Shuffle () defines and uses the shuffle () function to rearrange the elements in the array in random order. Returns TRUE if successful, otherwise FALSE is returned. Note: This function assigns the new key name to the cells in the array. This will delete the original key name and not just reorder it. Note: Since PHP 4.2.0, it is no longer necessary to sow the random number generator with the Srand () or Mt_srand () function, which is now automatically completed. The syntax Shuffle (array) parameter describes the array required. Specifies the array to use. Example <?php $my _array = Array ("A" = "Dog", "b" = "Cat")

1. Recommended 10 articles for PHP rand () functions

Summary: Shuffle () defines and uses the &nbsp;shuffle () function to rearrange the elements in the array in random order. &nbsp; returns TRUE if successful, otherwise FALSE is returned. &nbsp; Note: This function assigns the new key name to the cells in the array. This will delete the original key name and not just reorder it. &nbsp; Note: Since PHP 4.2.0, it is no longer necessary to sow the random number generator with the Srand () or Mt_srand () function, which is now automatically completed. &nbsp; language ...

2. Summarize the usage of the Mt_srand function

Summary: Shuffle () defines and uses the &nbsp;shuffle () function to rearrange the elements in the array in random order. &nbsp; returns TRUE if successful, otherwise FALSE is returned. &nbsp; Note: This function assigns the new key name to the cells in the array. This will delete the original key name and not just reorder it. &nbsp; Note: Since PHP 4.2.0, it is no longer necessary to sow the random number generator with the Srand () or Mt_srand () function, which is now automatically completed. &nbsp; language ...

3. About PHP Mt_srand () functions 10 articles recommended

Summary: Shuffle () defines and uses the &nbsp;shuffle () function to rearrange the elements in the array in random order. &nbsp; returns TRUE if successful, otherwise FALSE is returned. &nbsp; Note: This function assigns the new key name to the cells in the array. This will delete the original key name and not just reorder it. &nbsp; Note: Since PHP 4.2.0, it is no longer necessary to sow the random number generator with the Srand () or Mt_srand () function, which is now automatically completed. &nbsp; language ...

4. About PHP Shuffle () functions 10 articles recommended

Summary: Shuffle () defines and uses the &nbsp;shuffle () function to rearrange the elements in the array in random order. &nbsp; returns TRUE if successful, otherwise FALSE is returned. &nbsp; Note: This function assigns the new key name to the cells in the array. This will delete the original key name and not just reorder it. &nbsp; Note: Since PHP 4.2.0, it is no longer necessary to sow the random number generator with the Srand () or Mt_srand () function, which is now automatically completed. &nbsp; language ...

5. About PHP Array_rand () functions 10 articles recommended

Description: Shuffle () definition and usage; the shuffle () function rearranges the elements in the array in random order. &nbsp; returns TRUE if successful, otherwise FALSE is returned. &nbsp; Note: This function assigns the new key name to the cells in the array. This will delete the original key name and not just reorder it. &nbsp; Note: Since PHP 4.2.0, it is no longer necessary to sow the random number generator with the Srand () or Mt_srand () function, which is now automatically completed. &nbsp; language ...

6. PHP Generate random number Custom function Randstr ($length)

Description: Function randstr ($len =6) {$chars = ' abcdefghijklmnopqrstuvwxyz0123456789 '; #characters to build the password from Mt_ Srand (Double) Microtime () *1000000*getmypid ()); #seed the random number ...

7. PHP Generate random number Custom function Randstr ($length)

Description: Function randstr ($len =6) {$chars = ' abcdefghijklmnopqrstuvwxyz0123456789 '; #characters to build the password from Mt_ Srand (Double) Microtime () *1000000*getmypid ()); #seed the random number ...

8. Introduction to Shuffle and array_rand random function usage of PHP array function sequences

Introduction:: PHP Array function sequence of shuffle and Array_rand random function Introduction: Shuffle () Definition and usage shuffle () function rearrange the elements in the array in random order. Returns TRUE if successful, otherwise FALSE is returned. Note: This function assigns the new key name to the cells in the array. This will delete the original key name and not just reorder it. Note: Since PHP 4.2.0, it is no longer necessary to sow the random number generator with the Srand () or Mt_srand () function, which is now automatically completed. Syntax Shuffle (array) parameter description ar

9. User-agent string PHP A random string generation code

Introduction: User-agent string: user-agent string PHP A random string generated code: Copy code code as follows:/************* *@l-length of random string */function Generate _rand ($l) {$c = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"; Srand (double) microtime () * 1000000); for ($i =0

10. Simple Hanging 2.5.5 Beta free version of simple PHP validation image generation function

Introduction: Simple Hanging 2.5.5 Beta free version: simple hanging 2.5.5 Beta free version of the simple PHP validation image generation function: Copy code code as follows: <?php function Yzm ($name, $width, $height) {Header (" Content-type:image/png "); Srand (Double) microtime () *1000000);//sow a seed that generates random numbers to facilitate the use of session_start () generated by the random number below;//store random numbers in session $_session[$n

"Related question and answer recommendation":

What is the reason for C + +-Rand and Srand true and false random functions?

C + +-a question about the Srand function

C + +-how can Rand_r () in Linux be implemented under Windows?

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.