


PHP connection performance comparison between mysql and oracle database_PHP tutorial
Use a very simple table. The table structure used by mysql and oracle is the same. Both have only three fields. The structure is as follows:
Mysql table structure:
CREATE TABLE board (
board_id smallint (6) NOT NULL auto_increment,
board_name char(16) NOT NULL,
board_manager char(20),
PRIMARY KEY (board_id)
);
Oracle structure:
CREATE TABLE PHP_ORACLE."BOARD"
"BOARD_ID" FLOAT,
"BOARD_NAME" CHAR(16) NOT NULL,
"BOARD_MANAGER" CHAR(20)) ;
We only test The time spent on the INSERT operation was measured, and the select was not tested.
Because only PHP3 can connect to the Oracle database under win32, we only tested the performance of using PHP3 to connect to Oracle.
I believe that after the official version of PHP4 comes out, the speed of using PHP4 to connect to Oracle should be improved.
Under LINUX, because I did not install Oracle, I only tested the performance of mysql. It is said that under LINUX, the performance of oracle
is good, but it cannot be tested.
And we put all the code used for database connection and Oracle to analyze SQL statements outside the statistical code
, so the time measured in the test is only the time spent executing SQL operations.
Program used to test mysql:
$dblink=mysql_connect("localhost","root","shh123");
mysql_select_db(" bbs");
$counter=1;
set_time_limit(300);
$query="insert into board (board_name,board_manager) values (test,test)";
$begin_time=time ();
for ($i=1;$i mysql_db_query("bbs",$query);
$counter++;
}
$ end_time=time();
mysql_close($dblink);
echo "test db speed...
";
echo "begin time:".$begin_time."
";
echo "
end time:".$end_time."
";
$total=$end_time-$begin_time;
echo "total spent time:".$ total;
?>
Program used to test oracle:
$handle=OCILogon("php_oracle","php_oracle");
$counter=1;
set_time_limit(300);
$query="insert into board (board_id,board_name,board_manager) values (:board_id,test,test)";
$state =OCIParse($handle, $query);
OCIBindByName($state, ":board_id", &$i,32);
$begin_time=time();
for ($i=1; $i ociexecute($state);
}
$end_time=time();
OCIFreeStatement($state);
ocilogoff($handle) ;
echo "test db speed...
";
echo "begin time:".$begin_time."
";
echo "
end time: ".$end_time."
";
$total=$end_time-$begin_time;
echo "total spent time:".$total;
?>
Test results:
Environment: win32+apache+php4+mysql
Result: 28 seconds
Environment: win32+apache+php3+mysql
Result: 34 seconds
Environment: win32+apache+php3+oracle8.0.5 (oci function)
Result: 46 seconds
Environment: linux+apache+php4+mysql
Result: 10 seconds
Conclusion:
Under WIN32, although the performance of mysql is not very good, it is still much faster than oracle8, especially in my
test program, I did not include the database connection statement. Come in, so this test result is only the time it takes to insert data, and the oracle connection, my God, is too slow! On my machine, it takes at least 1-2 seconds to connect once.
Under LINUX, the performance of mysql has made a big leap compared to that under WIN32. Dropped from 28 seconds to 10 seconds.
So, if you don’t need the support of stored procedures, and the database size is not that huge, you should use mysql as your database under LINUX
! This lightweight database gives you optimal performance, manageability, and
pretty good security.

PHP is used to build dynamic websites, and its core functions include: 1. Generate dynamic content and generate web pages in real time by connecting with the database; 2. Process user interaction and form submissions, verify inputs and respond to operations; 3. Manage sessions and user authentication to provide a personalized experience; 4. Optimize performance and follow best practices to improve website efficiency and security.

PHP uses MySQLi and PDO extensions to interact in database operations and server-side logic processing, and processes server-side logic through functions such as session management. 1) Use MySQLi or PDO to connect to the database and execute SQL queries. 2) Handle HTTP requests and user status through session management and other functions. 3) Use transactions to ensure the atomicity of database operations. 4) Prevent SQL injection, use exception handling and closing connections for debugging. 5) Optimize performance through indexing and cache, write highly readable code and perform error handling.

Using preprocessing statements and PDO in PHP can effectively prevent SQL injection attacks. 1) Use PDO to connect to the database and set the error mode. 2) Create preprocessing statements through the prepare method and pass data using placeholders and execute methods. 3) Process query results and ensure the security and performance of the code.

PHP and Python have their own advantages and disadvantages, and the choice depends on project needs and personal preferences. 1.PHP is suitable for rapid development and maintenance of large-scale web applications. 2. Python dominates the field of data science and machine learning.

PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.

PHP makes it easy to create interactive web content. 1) Dynamically generate content by embedding HTML and display it in real time based on user input or database data. 2) Process form submission and generate dynamic output to ensure that htmlspecialchars is used to prevent XSS. 3) Use MySQL to create a user registration system, and use password_hash and preprocessing statements to enhance security. Mastering these techniques will improve the efficiency of web development.

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.


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