PHP array key value usage example analysis, PHP array example analysis_PHP tutorial

PHP array key value usage example analysis, PHP array example analysis

The example in this article describes the usage of php array key values. Share it with everyone for your reference. The specific analysis is as follows:

Look at an array first:

<&#63;php
$switching = array(
  10, // key = 0
  5  => 6,
  3  => 7,
  'a' => 4,
  11, // key = 6 (整个数组中整型键索引最大的值是5)
  '8' => 2, // key = 8 (字符串健'8'转换为8)
  '02' => 77, // key = '02'（注意不是2）
  0  => 12 
  /*前面值为10的键被赋予0，而后面重新定义了0键的值为12，
  从而覆盖了前面默认的0键值*/
 );
// empty array
$empty = array();
&#63;>

If printed with print_r($switching), the result is:

Array ( [0] => 12 [5] => 6 [3] => 7 [a] => 4 [6] => 11 [8] => 2 [02] => 77 )

Note that the two-digit number 02 is listed behind.

I hope this article will be helpful to everyone’s PHP programming design.

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