计数多维数组

Question

我有我的主数组：

array(6) { 
    [1]=> array(3) { 
        [0]=> string(15) "Extension" 
        [1]=> int(1) 
        [2]=> string(6) "3,00 " 
    } 
    [2]=> array(3) { 
        [0]=> string(32) "Physics " 
        [1]=> string(1) "1" 
        [2]=> string(6) "3,00 " 
    } 
    [3]=> array(3) { 
        [0]=> string(31) "Physics " 
        [1]=> int(1) 
        [2]=> string(6) "6,00 " 
    } 
    [4]=> array(3) { 
        [0]=> string(34) "Desk" 
        [1]=> int(4) 
        [2]=> string(8) "127,00 " 
    } 
    [5]=> array(3) { 
        [0]=> string(18) "assistance" 
        [1]=> int(1) 
        [2]=> string(7) "12,50 " 
    } 
    [6]=> array(3) { 
        [0]=> string(15) "Extension" 
        [1]=> int(1) 
        [2]=> string(6) "3,00 " 
    } 
}

我的预期输出是：

   Extension 2 
   Physics 2
   Desk 1 
   Assistance 1

结果必须在结果数组中我能怎么做？我尝试使用 array_count_values 函数但不起作用。

我如何购买 answear: 我试过这段代码，但它不起作用

  $tabrecap = array();
  foreach($counts as $key=>$value){
   //echo $key." qte".$value;
  $tabrecap = array ($key,$value,$valueOption);
  }

Answer 1

只做一个循环并使用每个数组的第一项作为键:

$array = array(
    array("Extension", 1, "3,00"),
    array("Physics", "1", "3,00"),
    array("Physics", 1, "6,00 ")
);
$count = array();

foreach($array as $a)
    $count[$a[0]]++;

var_dump($count); // array(2) { ["Extension"]=> int(1) ["Physics"]=> int(2) }

Answer 2

循环就是答案。

<?php
// untested

$counts = Array();
foreach( $array as $subArray ){
    $value = $subArray[0];
    $counts[ $value ] = ( isset($counts[ $value ]) )
        ? $counts[ $value ] + 1
        : 1;
}

var_dump( $counts);

Answer 3

正如你在评论中所问的，请试试这个：-

<?php
$array =   array( '1'=> array('0'=>"Extension", '1'=> 1, '2'=>"3,00 " ), '2'=> array('0'=>"Physics",'1'=>"1","3,00 " ),'3'=> array('0'=>"Physics",'1'=>1,"6,00 "),'4'=> array('0'=>"Desk",'1'=>4,"127,00 "),'5'=> array('0'=>"assistance",'1'=>1,"12,50 " ),'6'=> array('0'=>"Extension",'1'=>1,"3,00 "));

$count = array();

$i = 0;

foreach ($array as $key=>$arr) {
  // Add to the current group count if it exists
  if (isset($count[$i][$arr[0]])) {
    $count[$i][$arr[0]]++;
  }
  else $count[$i][$arr[0]] = 1;

  $i++;
}
print_r($count);
 ?>

输出：- https://eval.in/379176

计数多维数组

Count multidimensional array

php

arrays

count