Php Method for random replacement of elements in a logarithm Group

Source: Internet
Author: User

Php Method for random replacement of elements in a logarithm Group

This example describes how to randomly change elements in a php logarithm group. Share it with you for your reference. The specific analysis is as follows:

This is a user-defined function for random replacement of php Array elements. php already has a built-in shuffle ($ Array) function with the same functions. This code can be used as a reference.

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// I noticed that there is already a built-in function that

// Does the same-so don't use mine ;-)

//

// --> Shuffle ($ Array );

//

// Http://de2.php.net/manual/de/function.shuffle.php

//

Function RandomizeArray ($ array ){

// Error check:

$ Array = (! Is_array ($ array ))? Array ($ array): $ array;

$ A = array ();

$ Max = count ($ array) + 10;

While (count ($ array)> 0 ){

$ E = array_shift ($ array );

$ R = rand (0, $ max );

// Find a empty key:

While (isset ($ a [$ r]) {

$ R = rand (0, $ max );

}

$ A [$ r] = $ e;

}

Ksort ($ );

$ A = array_values ($ );

Return $;

}

Example:

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/*

** Example:

*/

$ Test_array = array ('why', 'dont', 'visit', 'www ', 'jonas', 'john', 'de ',':-)');

Print implode (",", $ test_array );

Print "\ n ";

Print implode (",", RandomizeArray ($ test_array ));

/*

Example output:

Why, dont, visit, www, jonas, john, de ,:-)

Www, de, jonas, john, visit, why, :-), dont

*/

I hope this article will help you with php programming.

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