PHP Automatic type conversion, what rules to follow?

This post was last edited by u011523116 on 2013-08-05 11:49:57

Are there official documents (Chinese translation) in this area?

Reply to discussion (solution)

Basic principles:
For mathematical operations, the string is converted to a numeric value
For string operations, numeric values are converted to strings

Basic principles:
For mathematical operations, the string is converted to a numeric value
For string operations, numeric values are converted to strings

Give an example!

Echo 1 + "2a";//3
Echo 1. "2a";//12a

Echo 1 + "2a";//3
Echo 1. "2a";//12a

Point number. What's the effect?

String connection
It seems you have a problem with your learning methods.

