PHP code example of nancheng / pfinal-array

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

nancheng / pfinal-array example snippets

Array

    e pf\arr\PFarr;
    // 调用方法

    $arr = [1,54,'a',45,12,'c',1,1,12,[1,1,'a',['a','b','a']]];
    $arr = PFarr::pf_array_unique($arr);
    echo '<pre>';
    print_r($arr);
        
    
    // 结果
    Array
    (
        [0] => 1
        [1] => 54
        [2] => a
        [3] => 45
        [4] => 12
        [5] => c
        [9] => Array
            (
                [0] => 1
                [2] => a
                [3] => Array
                    (
                        [0] => a
                        [1] => b
                    )
    
            )
    
    )

$result = PFarr::pf_array_col($records, 'first_name', 'id');
    print_r($result);

$records = [
    [
        'city'  => '上海',
        'age'   => 18,
        'name'  => '马二'
    ],
    [
        'city'  => '上海',
        'age'   => 20,
        'name'  => '翠花'
    ]
];

//按照 city 分组 
$arr = PFarr::pf_array_group_by($records,'city');

//按照 city 分组 完成 之后 再按照  age 分组
   
$arr1 = PFarr::pf_array_group_by($records,'city','age');

//组词算法  
$arr=array('裤子','牛仔','低腰','加肥');  
$count=count($arr);  
for($i=1;$i<=$count;$i++){  
    $temp[$i]=PFarr::pf_diy_words($arr,$i);  
}  
PFarr::dd($temp);
  

$arr_one = ['a','b','c','d'];
$arr_two = ['a','b','a','c','b','d'];

PFarr::dd(PFarr::pf_count_element($arr_one));

/*
  返回
  Array
   (
       [a] => 1
       [b] => 1
       [c] => 1
       [d] => 1
   )
 */

PFarr::dd(PFarr::pf_count_element($arr_two));
 /*
   返回
 Array
 (
     [a] => 2
     [b] => 2
     [c] => 1
     [d] => 1
 )
  
 */

$array = [
    ['id' => '123', 'name' => 'aaa', 'class' => 'x'],
    ['id' => '124', 'name' => 'bbb', 'class' => 'x'],
    ['id' => '345', 'name' => 'ccc', 'class' => 'y'],
];

PFarr::dd(PFarr::pf_map($array,'id','name'));

/*
  返回:
 Array
 (
     [123] => aaa
     [124] => bbb
     [345] => ccc
 )
 */


PFarr::dd(PFarr::pf_map($array,'id','name','class'));
/*
返回
Array
(
    [x] => Array
        (
            [123] => aaa
            [124] => bbb
        )

    [y] => Array
        (
            [345] => ccc
        )

)
*/