PHP Array Key Value Usage example analysis, PHP array instance Analysis _php Tutorial

PHP Array Key Value Usage example analysis, PHP array instance analysis

This example describes the PHP array key-value usage. Share to everyone for your reference. The specific analysis is as follows:

Look at an array first:

<?php$switching = Array (  ten,//key = 0  5 =  6,  3  = 7,  ' a ' = = 4, one  ,//key = 6 ( The maximum value of the integer key index in the entire array is 5)  ' 8 ' = + 2,//Key = 8 (String health ' 8 ' is converted to 8) ' "" "+"  ,//key = ' 02 ' (note not 2)  0  = 12
  /* value of 10 is given 0, and the value of the 0 key is redefined,  which overrides the previous default of the 0 key value */);//Empty array$empty = Array ();? >

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

Array ([0] = [5] = 6 [3] = 7 [A] = 4 [6] = [8] = 2 [Geneva] = 77)

Note that 02 of the two-digit number is in the back row.

I hope this article is helpful to everyone's PHP programming.

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