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SQLitePHP接口详解
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本文主要和大家分享SQLite PHP接口知识，希望能帮助到大家，首先我们来看一下PHP 接口 API的相关知识。PHP 接口 API
连接数据库
<?php
class MyDB extends SQLite3
{
function __construct()
{
$this->open('test.db');
}
}
$db = new MyDB();
if(!$db){
echo $db->lastErrorMsg();
} else {
echo "Opened database successfully\n";
}
?>创建表
<?php
class MyDB extends SQLite3
{
function __construct()
{
$this->open('test.db');
}
}
$db = new MyDB();
if(!$db){
echo $db->lastErrorMsg();
} else {
echo "Opened database successfully\n";
}
$sql =<<<EOF
CREATE TABLE COMPANY
(ID INT PRIMARY KEY NOT NULL,
NAME TEXT NOT NULL,
AGE INT NOT NULL,
ADDRESS CHAR(50),
SALARY REAL);
EOF;
$ret = $db->exec($sql);
if(!$ret){
echo $db->lastErrorMsg();
} else {
echo "Table created successfully\n";
}
$db->close();
?>INSERT 操作
<?php
class MyDB extends SQLite3
{
function __construct()
{
$this->open('test.db');
}
}
$db = new MyDB();
if(!$db){
echo $db->lastErrorMsg();
} else {
echo "Opened database successfully\n";
}
$sql =<<<EOF
INSERT INTO COMPANY (ID,NAME,AGE,ADDRESS,SALARY)
VALUES (1, 'Paul', 32, 'California', 20000.00 );
INSERT INTO COMPANY (ID,NAME,AGE,ADDRESS,SALARY)
VALUES (2, 'Allen', 25, 'Texas', 15000.00 );
INSERT INTO COMPANY (ID,NAME,AGE,ADDRESS,SALARY)
VALUES (3, 'Teddy', 23, 'Norway', 20000.00 );
INSERT INTO COMPANY (ID,NAME,AGE,ADDRESS,SALARY)
VALUES (4, 'Mark', 25, 'Rich-Mond ', 65000.00 );
EOF;
$ret = $db->exec($sql);
if(!$ret){
echo $db->lastErrorMsg();
} else {
echo "Records created successfully\n";
}
$db->close();
?>SELECT 操作
<?php
class MyDB extends SQLite3
{
function __construct()
{
$this->open('test.db');
}
}
$db = new MyDB();
if(!$db){
echo $db->lastErrorMsg();
} else {
echo "Opened database successfully\n";
}
$sql =<<<EOF
SELECT * from COMPANY;
EOF;
$ret = $db->query($sql);
while($row = $ret->fetchArray(SQLITE3_ASSOC) ){
echo "ID = ". $row['ID'] . "\n";
echo "NAME = ". $row['NAME'] ."\n";
echo "ADDRESS = ". $row['ADDRESS'] ."\n";
echo "SALARY = ".$row['SALARY'] ."\n\n";
}
echo "Operation done successfully\n";
$db->close();
?>UPDATE 操作
<?php
class MyDB extends SQLite3
{
function __construct()
{
$this->open('test.db');
}
}
$db = new MyDB();
if(!$db){
echo $db->lastErrorMsg();
} else {
echo "Opened database successfully\n";
}
$sql =<<<EOF
UPDATE COMPANY set SALARY = 25000.00 where ID=1;
EOF;
$ret = $db->exec($sql);
if(!$ret){
echo $db->lastErrorMsg();
} else {
echo $db->changes(), " Record updated successfully\n";
}
$sql =<<<EOF
SELECT * from COMPANY;
EOF;
$ret = $db->query($sql);
while($row = $ret->fetchArray(SQLITE3_ASSOC) ){
echo "ID = ". $row['ID'] . "\n";
echo "NAME = ". $row['NAME'] ."\n";
echo "ADDRESS = ". $row['ADDRESS'] ."\n";
echo "SALARY = ".$row['SALARY'] ."\n\n";
}
echo "Operation done successfully\n";
$db->close();
?>DELETE 操作
<?php
class MyDB extends SQLite3
{
function __construct()
{
$this->open('test.db');
}
}
$db = new MyDB();
if(!$db){
echo $db->lastErrorMsg();
} else {
echo "Opened database successfully\n";
}
$sql =<<<EOF
DELETE from COMPANY where ID=2;
EOF;
$ret = $db->exec($sql);
if(!$ret){
echo $db->lastErrorMsg();
} else {
echo $db->changes(), " Record deleted successfully\n";
}
$sql =<<<EOF
SELECT * from COMPANY;
EOF;
$ret = $db->query($sql);
while($row = $ret->fetchArray(SQLITE3_ASSOC) ){
echo "ID = ". $row['ID'] . "\n";
echo "NAME = ". $row['NAME'] ."\n";
echo "ADDRESS = ". $row['ADDRESS'] ."\n";
echo "SALARY = ".$row['SALARY'] ."\n\n";
}
echo "Operation done successfully\n";
$db->close();
?>相关推荐：
php接口如何正确使用
PHP接口的使用技巧
对php接口使用问题的一些总结
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