A method for converting two-dimensional associative arrays into strings by PHP

This article mainly introduces the PHP implementation of the two-dimensional associative array into a string method, involving the PHP array recursive traversal, conversion, de-weight, splicing and other related operations skills, the need for friends can refer to the next

Specific as follows:

Demand

The project encountered the problem of two-dimensional associative array-to-string, consulted the relevant data, wrote the following procedures, and can filter the duplicate keywords.

For example, PHP's two-dimensional array is as follows:

$name = Array (    "self" = "Wangzhengyi",    "student" = = Array (        "Chenshan",        "Xiaolingang"    ),    "Unkmow" = "Chaikun",    "teacher" = = Array (        "Huangwei",        "fanwenqing"    ));

The last string format to get is:

Wangzhengyi,chenshan,xiaolingang,chaikun,huangwei,fanwenqing

Ideas

Method

Use the static keyword and recursive ideas to iterate through the array

Custom Function Code (PHP)

function Arrtostr ($array) {  //defines an array that stores all strings  static $r _arr = Array ();  if (Is_array ($array)) {    foreach ($array as $key = + $value) {      if (Is_array ($value)) {        //recursive traversal        arrtostr ( $value);      } else {        $r _arr[] = $value;      }    }  } else if (is_string ($array)) {      $r _arr[] = $array;  }  Array de  -weight $r _arr = Array_unique ($r _arr);  $string = Implode (",", $r _arr);  return $string;}

Complete Sample code:

<?php$name = Array (    "self" = "Wangzhengyi",    "student" = = Array (        "Chenshan",        "Xiaolingang"    ),    "Unkmow" = "Chaikun",    "teacher" = = Array (        "Huangwei",        "fanwenqing"    ); function Arrtostr ($array) {  //defines an array that stores all strings  static $r _arr = Array ();  if (Is_array ($array)) {    foreach ($array as $key = + $value) {      if (Is_array ($value)) {        //recursive traversal        Arrto STR ($value);      } else {        $r _arr[] = $value;      }    }  } else if (is_string ($array)) {      $r _arr[] = $array;  }  Array de  -weight $r _arr = Array_unique ($r _arr);  $string = Implode (",", $r _arr);  return $string;} echo Arrtostr ($name);? >

Operation Result:

Wangzhengyi,chenshan,xiaolingang,chaikun,huangwei,fanwenqing

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