Detailed explanation of the steps to operate PHP associative arrays and index arrays

This time I will give you a detailed explanation of the steps for operating PHP associative arrays and index arrays. What are the precautions for operating PHP associative arrays and index arrays? . The following is a practical case, let's take a look.

Data

username password 
test 123456

Associative array:

 mysql_fetch_assoc()
 array([username]=>'test',[password]=>'123456')

Index array:

mysql_fetch_array()
array([0]=>'test',[1]=>'123456')

var_export()

array ( 0 => 1, 1 => 'a', 2 => 'hello', )

var_dump()

array(3) { [0]=> int(1) [1]=> string(1) "a" [2]=> string(5) "hello" }

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

Recommended reading:

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