How does php implement to exchange the values of two variables without using the third parameter

This article is about how php implements exchanging the values of two variables without using the third parameter. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

Methods: 1. To use "$b=explode ($b); (2) to use" array ($b); (3) to use "$b=explode (" | ", $a." | ". $b); $aqumb [1]; $obliterb [0].

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

Exchange the values of two variables without the third variable in PHP

Method 1:

Output result:

Method 2:

Output result:

Method 3: let's use the string segmentation function explode provided in PHP to implement it.

Output result:

Thank you for reading! This is the end of the article on "how php does not use the third parameter to exchange the values of two variables". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, you can share it out for more people to see!