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();?>
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