I wrote a function to filter the array. But a value is always missing. Can anyone help me?-PHP Tutorial-php.cn

I wrote a function to filter the array. But a value is always missing. Can anyone help me?

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Release： 2023-03-02 07:34:02

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It is to filter the minimum and maximum values...
However, when
user_array_filter( $aTxt, 'After_A_Num' , $iMaxStamp);
, I found that a value equal to $iMaxStamp was missed. Can anyone help me? What's going on?
I can't see anything wrong...
I wrote a function to filter the array. But a value is always missing. Can anyone help me?

<code>
function user_array_filter( &$array, $callback )
//后面可以跟第3个参数,作为 $callback 的参数;
{
    $args = func_get_args();    //把function 所有参数保存成数组;


    if( count($args) < 2 )
        exit('function user_array_filter()参数错误 , 最少有两个参数.');


    if( count($args) == 2 )    //如果俩参数,就是有 $arr 和 $callback
    {
        foreach( $array as $k => $v )
        {
            $result = $callback($v);

            if( !$result )    //如果 function 返回 false ;
            {
                unset( $array[$k] );
            }
        }
    }



    else
    {
        $limit = $args[2];    // [0]->处理数组 , [1]->function , [2]->value

        foreach( $array as $k => $v )
        {
            $result = $callback($v, $limit);

            if( !$result )    //如果 function 返回 false ;
            {
                unset( $array[$k] );
            }
        }
    }

    $array = array_values($array);     //把键重定义;


}


    function Before_A_Num($num , $limit)
    {
        if ($num < $limit)
            return true;
        return false;
    }

    function After_A_Num($num , $limit)
    {
        if ($num > $limit)
            return true;
        return false;
    }
</code>

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Reply content:

<code>
function user_array_filter( &$array, $callback )
//后面可以跟第3个参数,作为 $callback 的参数;
{
    $args = func_get_args();    //把function 所有参数保存成数组;


    if( count($args) < 2 )
        exit('function user_array_filter()参数错误 , 最少有两个参数.');


    if( count($args) == 2 )    //如果俩参数,就是有 $arr 和 $callback
    {
        foreach( $array as $k => $v )
        {
            $result = $callback($v);

            if( !$result )    //如果 function 返回 false ;
            {
                unset( $array[$k] );
            }
        }
    }



    else
    {
        $limit = $args[2];    // [0]->处理数组 , [1]->function , [2]->value

        foreach( $array as $k => $v )
        {
            $result = $callback($v, $limit);

            if( !$result )    //如果 function 返回 false ;
            {
                unset( $array[$k] );
            }
        }
    }

    $array = array_values($array);     //把键重定义;


}


    function Before_A_Num($num , $limit)
    {
        if ($num < $limit)
            return true;
        return false;
    }

    function After_A_Num($num , $limit)
    {
        if ($num > $limit)
            return true;
        return false;
    }
</code>

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Let me be clear, your current problem (the following pseudo code) is if:

<code>$a = [1,3,45,6,6,7,7,5];
user_array_filter($a, 'After_A_Num', 6);
var_dump($a);    //目前的结果[7,7,45]</code>

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But the result you expect is [6,6,7,7,45], is that right?
If this is the case, modify the After_A_Num function from greater than to greater than or equal to.

Also, I don’t think it’s good to name your function like this