PHP randomly extracts some element code from an array

PHP randomly extracts some element code from an array_PHP tutorial

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Release： 2016-07-13 17:14:15

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The code is as follows

代码如下

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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 ); // 从小到大排序，根据需要修改
        return $getArray;
    }
}

//测试代码
$keywords = array(
        "我们",
        "你们",
        "他们"
);
$getValue=new getValues();
$getValue->inputValue($keywords);
$key = $getValue->getValue(1);//从数组中随机抽取一个元素
？>

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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;
}
}

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