When using PHP + MySql in the project, you need to insert data, but the database table field is very long. If you use the regular insert into table (c) values ('dd, it will be a very long SQL statement, and if you are not careful, it will be wrong. Therefore, arrays are usually used for operations. Many frameworks have special functions, such as table ing of thinkphp.
$ Result = $ model-> Add ($ post) // $ post is the array corresponding to the table Field
However, the following is my summary of how native is implemented. Although it is cumbersome, it is absolutely feasible. For example:
$ Link = mysql_connect ('localhost', 'root', 'pwd'); mysql_select_db ('db', $ link ); $ data ['a'] = $ post ['a']; $ data ['B'] = $ post ['B']; $ data ['C'] = $ post ['C']; $ data ['C'] = $ post ['C']; $ data ['D'] = $ post ['D']; $ data ['E'] = $ post ['E']; $ data ['F'] = $ post ['F']; $ data ['G'] = $ post ['G']; // a, B, c, d, E, F, and g are the table fields foreach ($ data as $ k => $ v) {$ K1 [] = '''. $ K. '''; // use a field as an array; $ V1 [] = '"'. $ v. '"'; // use the inserted value as an array;} $ strv. = implode (',', $ V1); $ strk. = implode (",", $ k1); $ SQL = "insert into Tb ($ strk) values ($ strv)"; mysql_query ($ SQL );
At present, there is no better way to do this.
This is also done on the Internet, but I have not tested it yet.
Step 1: Create a table to store the values of the array variables, that is, use the test database that comes with MySQL.
Use test;
Creat table 'Neil '('id' int (20) primary key not null,
'Major' varchar (25) not null );
Step 2: Create a check box page to simulate an instance PHP array index.html
<Body>
<Form method = "Post" Action = "show. php">
ID: <input type = "text" name = "ID"> <br>
<Input type = "checkbox" name = "teach [0]" value = "online"> online <br>
<Input type = "checkbox" name = "teach [1]" value = "video"> video <br>
<Input type = "checkbox" name = "teach [2]" value = "face"> face-to-face <br>
<Input type = "Submit" value = "Submit">
</Form>
Step 3: Describe show. php
Index.html submits the variable to show. php through post for processing. Let's write the show. PHP code first.
<? PHP
$ Db_name = "test ";
$ Table_name = "Neil ";
$ Connection = @ mysql_connect ("localhost", "root", "root") or die (mysql_error ());
$ Db = @ mysql_select_db ($ db_name, $ connection) or die (mysql_error ());
/* Here we will process array variables */
$ Value = ''; // defines a variable. Value Initialization is empty.
Foreach ($ _ post ["Teach"] as $ key)
{$ Value. = $ key. ',';}/* transmits the array value to the intermediate variable key, and the key transfers the value to the variable value in sequence */
/* Insert statement */
$ SQL = "insert into Neil values ('$ _ post [ID]', '$ value ')";
$ Query = @ mysql_query ($ SQL, $ connection) or die (mysql_error ());
?>
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