php 数据库操作基础类DBObject Class的用法示例
内容摘要
这篇文章主要为大家详细介绍了php 数据库操作基础类DBObject Class的用法示例,具有一定的参考价值,可以用来参考一下。
php 数据库操作基础类DBObject Class,对此感兴趣的朋友
php 数据库操作基础类DBObject Class,对此感兴趣的朋友
文章正文
这篇文章主要为大家详细介绍了php 数据库操作基础类DBObject Class的用法示例,具有一定的参考价值,可以用来参考一下。
php 数据库操作基础类DBObject Class,对此感兴趣的朋友,看看idc笔记做的技术笔记。经测试代码如下:1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 | <code class = "php" > /** * 数据库操作基础类DBObject Class * * @param * @arrange (www.idcnote.com) **/ /* WORKS IN PHP5 ONLY */ class DBObject { private $id ; private $id_field ; private $table_name ; private $fields = array (); function __construct( $table_name , $id_field , $fields ) { $this ->table_name = $table_name ; $this ->id_field = $id_field ; foreach ( $fields as $key ) $this ->fields[ $key ] = null; } function __get( $key ) { return $this ->fields[ $key ]; } function __set( $key , $value ) { if ( array_key_exists ( $key , $this ->fields)) { $this ->fields[ $key ] = $value ; return true; } return false; } function select( $id ) { global $db ; $db ->query( "SELECT * FROM " . $this ->table_name . " WHERE " . $this ->id_field . " = '$id'" ); if (mysql_num_rows( $db ->result) == 0) return false; else { $this ->id = $id ; $row = mysql_fetch_array( $db ->result, MYSQL_ASSOC); foreach ( $row as $key => $val ) $this ->fields[ $key ] = $val ; } } function insert() { global $db ; unset( $this ->fields[ $this ->id_field]); $fields = join( ", " , array_keys ( $this ->fields)); $values = "'" . join( "', '" , $this ->fields) . "'" ; $db ->query( "INSERT INTO " . $this ->table_name . " ($fields) VALUES ($values)" ); $this ->id = mysql_insert_id( $db ->db); return $this ->id; } function update() { global $db ; unset( $this ->fields[ $this ->id_field]); $arrStuff = array (); foreach ( $this ->fields as $key => $val ) $arrStuff [] = "$key = '$val'" ; $stuff = implode( ", " , $arrStuff ); $db ->query( "UPDATE " . $this ->table_name . " SET $stuff WHERE " . $this ->id_field . " = '" . $this ->id . "'" ); return mysql_affected_rows( $db ->db); // Not always correct due to mysql update bug/feature } function delete () { global $db ; $db ->query( "DELETE FROM " . $this ->table_name . " WHERE " . $this ->id_field . " = '" . $this ->id . "'" ); return mysql_affected_rows( $db ->db); } function empty_table() { global $db ; $db ->query( "DELETE FROM " . $this ->table_name); } } // // class Person extends DBObject // { // function __construct() // { // parent::__construct('person', 'person_id', array('name', 'eye_color', 'hair_color')); // } // } // /*** 来自php教程(www.idcnote.com) ***/ </code> |
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