2PHP environment installation takes 5 minutes

3Everyone can code in 6 minutes

4 variables 8 minutes

1) A variable is an empty box with a name. The process of a box holding content is called assignment (=)

2) Different types of boxes (types of variables) can hold different things

5 operators 10 minutes

????????? +,-,*,/,=

6 Three major control structures11 minutes

Sequence, loop, control

7You’ve learned to program in 6 minutes

Once you learn variables, operators, and control, you will learn to program

8 variable data types 7 minutes

Variables: starting with $ as flag

9 strings 6 minutes

$str = "I love you";//Form of double quotes

$str0 = 'I love you';//Form of single quotes

In single quotes, only two escapes are recognized, \' is ' \\ is \

10 arrays 8 minutes

$arr =array("001"=>"li","002"=>"zhang")

The array is the cabinet. The number of the cabinet specifies a specific cabinet and the things are placed in the cabinet

You need a key to find something, and a key to put something in (key ---->value)

11GET POST form data 10 minutes

12 Guestbook publishing function 11 minutes

13Guestbook: 17 minutes to read messages

14 Learning methods: How to learn PHP efficiently? 19 minutes

Author: bad_boy
Link: https://www.jianshu.com/p/dfa48c5a2cac
Source: Jianshu
Copyright belongs to the author. For commercial reprinting, please contact the author for authorization. For non-commercial reprinting, please indicate the source.
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