PHP code that randomly extracts some elements from an array

/** * Random extraction of array elements * Author:notuser * 2012-12-29 */ Class GetValues { Public Function Inputvalue ($inputArray) { $this->inputarray = $inputArray; } Public Function GetValue ($number) { $this->number = $number; for ($i = 0; $i < $this->number; $i + +) { $index = rand (0, COUNT ($this->inputarray)-1-$i); $getArray [$i] = $this->inputarray [$index]; unset ($this->inputarray [$index]); for ($k = $index; $k < count ($this->inputarray)-1; $k + +) { $this->inputarray [$k] = $this->inputarray [$k + 1]; } } Asort ($getArray); Sort from small to large, modify as needed return $getArray; } } Test code $keywords = Array ( "We", "You," They ); $getValue =new getValues (); $getValue->inputvalue ($keywords); $key = $getValue->getvalue (1);//randomly extracting an element from an array Echo $key; ？ > Copy Code

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