What is the difference between -> and => operators in php

Difference: The "->" operator is a method for operating member variables in a class. It accesses functions or objects in the class as an instantiated object, for example "$runoob->getUrl(); "; and "=>" is the operator used when mapping the key and value of the array. The syntax "index=>values" can assign values ​​to the keys.

The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

##“-> "Operator

This operator is a method to operate member variables in a class, which can be non-static member variables, such as:

 class xxx{
  private $test;
 $this-test="111";
}

"=>"Operator

This operator is used when mapping the key and value of an array.

The syntax "

index => values", separated by commas, defines the index and value.

The difference between -> and => operators in PHP

In PHP, the => operator is usually used for arrays During operation, the general form is as follows:

$arr = array(key=>value,key2=>value2);

Assign a value to the key in the array.

The key can be an integer or a string, and the value can be any type of value.

This operator is easily confused with greater than or equal to (>=), please note.

And->Access functions or objects in the class as instantiated objects, for example:

$runoob->getUrl();

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