1, dynamic website technology (backend language)
php, java (jsp and php language almost) ,. net, Nodejs, python. . .
The simplest is to learn php
2, php basic grammar
js js code in the script with a wrap, php by <? php?> After the wrap, can be placed in any position of a html tag
3, compare js and php language
Variable - in-memory data
1, variable declaration
Start with $
$ A = 1;
2, string concatenation
php point is used.
$ Num. 'Who are you' ==== '' Who are you 1 '
3、
Note: json format string inside double quotes must be --- this is the norm, not to follow will complain
4, php in array
5, iterate
js in
in php
6, data types
js in a weakly typed language ---
The role of call: 1, changing the function of this point, 2, 3 calls the function, this parameter is the first point 4, the value returned is the return value of the function call to invoke a
in php
. . . Look php document
7, function
js in
1、function
2, function expression
3、new Function（）
in php
8, get post data acquisition
js in
in php http protocol
Case: Query results
