php mysqli preprocessing operations database

 Used in SQL table

CREATE TABLE `student_01` (
`id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) CHARACTER SET utf8 COLLATE utf8_unicode_ci DEFAULT NULL COMMENT '名字',
  `kecheng` varchar(255) CHARACTER SET utf8 COLLATE utf8_unicode_ci DEFAULT NULL,
  `score` varchar(255) CHARACTER SET utf8 COLLATE utf8_unicode_ci DEFAULT NULL,
  `other_id` int(11) DEFAULT NULL,
  PRIMARY KEY (`id`) USING BTREE,
  KEY `aaaa` (`other_id`) USING BTREE
) ENGINE=InnoDB AUTO_INCREMENT=10 DEFAULT CHARSET=latin1 ROW_FORMAT=COMPACT;

The data processing of input variables

// input variable data processing 
// input variables as follows: 
// 01) preparation (resolve) the statement 02) bind variables 03) assigned to the bind variable 04) execute a prepared statement 
$ conn = mysqli_connect ( '127.0.0.1 ',' afei2 ',' 123456 ',' Test '); 
$ conn-> Query ( "SET names utf8mb4"); 
$ stmt = $ conn-> PREPARE ( "the INSERT the INTO student_01 (name, kecheng, Score, other_id) VALUES ") (,,,????); 
$ stmt-> bind_param ( 'SSDI', $ name, $ kecheng, $ Score, $ other_id); // The first parameter is the specified type 

$ name = 'big fly '; 
$ kecheng =' math '; 
$ Score = 75; 
$ other_id = 1; 
$ stmt-> the Execute (); 

$ name =' big fly 02 '; 
$ kecheng =' language '; 
$ Score = 60; 
$ =. 1 other_id; 
$ stmt-> Execute (); 

$ stmt-> Close ();

Examples of bind variables acquired

Examples // bind variables obtained 
// output variables as follows: 
// 01) preparation (analytical) statement 02) execute a prepared statement 03) Binding output variable 04) to extract the data to the output variable 
$ conn = mysqli_connect ( '127.0.0.1', 'afei2', '123456', 'Test'); 
$ conn-> Query ( "SET names utf8mb4"); 
$ stmt = $ conn-> PREPARE ( "the SELECT ID, name, kecheng, Score student_01 the FROM "); 
$ stmt-> bind_result ($ ID, name $, $ kecheng, $ Score); // variables defined herein 
$ stmt-> Execute (); 
Print" <Table border = '. 1'>. " PHP_EOL; 
Print "<TR> <TH> ID </ th> <th> name </ th> <th> course </ th> <th> fraction </ TH> </ TR>" PHP_EOL;. 
the while ($ stmt-> FETCH ()) { 
    Print "<TR> <TD> $ ID </ TD> <TD> name $ </ TD> <TD> $ kecheng </td><td>$score</td></tr>" . PHP_EOL;
}
print "</table>" . PHP_EOL;
$stmt->close();