二维数组按指定的键值排序

/**
 * 二维数组按指定的键值排序
 * @param $array 需要排序的二维数组
 * @param $keys 需要排序根据的索引
 * @param string $type 正序/倒叙（默认倒序）
 * @return array|string
 */
public function  array_sort( $array, $keys, $type='asc' )
{
    if( !isset( $array ) || !is_array( $array ) || empty( $array ) ) return '';
    if( !isset( $keys ) || trim( $keys ) == '' ) return '';
    if( !isset( $type ) || $type == '' || !in_array( strtolower( $type ), array( 'asc', 'desc' ) ) ) return '';

    $keysvalue  = [];
    foreach( $array as $key => $val ) {
        $val[ $keys ]   = str_replace( '-', '', $val[ $keys ] );
        $val[ $keys ]   = str_replace( ' ', '', $val[ $keys ] );
        $val[ $keys ]   = str_replace( ':', '', $val[ $keys ] );
        $keysvalue[]    = $val[ $keys ];
    }

    asort( $keysvalue ); //key值排序
    reset( $keysvalue ); //指针重新指向数组第一个
    foreach( $keysvalue as $key => $vals )
        $keysort[] = $key;

    $keysvalue  = [];
    $count      = count( $keysort );
    if( strtolower( $type ) != 'asc' ) {
        for( $i = $count - 1; $i >= 0; $i-- )
            $keysvalue[] = $array[ $keysort[ $i ] ];
    }else{
        for( $i = 0; $i < $count; $i++ )
            $keysvalue[] = $array[ $keysort[ $i ] ];
    }
    return $keysvalue;
}