Home Backend Development PHP Tutorial Interactive use of PHP4 and MySQL_PHP tutorial

Interactive use of PHP4 and MySQL_PHP tutorial

Jul 21, 2016 pm 04:05 PM
mysql and interaction use exist Establish start us database connect first

1. Start by establishing a connection to the MySQL database.

First, we should create an infostar table in a database in MySQL:

Follow the steps of testing MySQL and manually create the table we need after seeing the "mysql>" prompt:

mysql>CREATE DATABASE mydb

mysql>USE mydb

mysql>CREATE TABLE infostar(
->name VARCHAR(25),
-> ;email VARCHAR(25),
->choice VARCHAR(10));

Okay, the table is created.Next, create a meeting form with users (pure HTML file)

diaocha.htm



New Document </ TITLE> <br></HEAD> <br><br><BODY BGCOLOR="#CCCCCC"> <br><center> ; <br><form method="post" action="diaocha.php"> <br><table border> <br><tr><td>Name: <br><td> <br><input type="text" name="name" size="20" maxlength="20" value=""> <br><tr><td>Email: <br><td> ; <br><input type="text" name="email" size="20" maxlength="20" value=""> <br><tr><td>Please select: <br><td> <br><input type="radio" name="choice" value="apple">Apple<br><input type="radio" name="choice" value="orange" >Orange<br><input type="radio" name="choice" value="pear">Pear <br><br> <br><input type="radio" name="choice" value="coconut">Coconut<br><input type="radio" name="choice" value="watermelon">Watermelon<br><input type="radio" name="choice" value= "banana">banana<br></table> <br><p> <br><input type="submit" name="submit_button" value="OK"> <br><input type="reset" name="reset_button" value="Reset"> <br></form> <br></BODY> <br></HTML> <br><br>its format As follows: <br><br>What fruit do you like to eat<br>Name:                                                                                                                                                                                                    but ><br>Let’s create a PHP program to receive and process the information from the diaocha.htm form<br><br>diaocha.php <br><br><?php <br>/* Define some related variables, For use by the mysql_connect() function below*/ <br>$hostname="localhost"; <br>$username="root"; <br>$password=""; <br>$dbname="mydb"; <br><br>/* Used to store the email address of the site administrator*/ <br>$adminaddress="webmaster@youweb.com"; <br><br>/* This is the table we just created to store User data*/ <br>$userstable="infostar" ; <br><br>/* Establish a connection below*/ <br>mysql_connect($hostname,$username,$password) or die ("Unable to connect database" ); <br><br>/* Select the database mydb below. Adding the (@) symbol before the function will suppress the display of error messages.*/ <br>@mysql_select_db("$dbname")or die("Unable ro select database"); <br><br>print"<center>"; <br>print"Hello:$name."; <br>print"<br><br>"; <br>print"Your email is:$email<br><br>"; <br>print"Thank you for your participation<br><br>"; <br><br><br>/* Put The information is inserted into the table infostar*/ <br>/* Because the database table was selected using the mysql_select_db function earlier. Therefore, there is no need to enter the table name below*/ <br>$query="INSERT INTO $userstable VALUES('$ name','$email','$choice')"; <br>$result=mysql_query($query); <br><br>print"We have saved your information in the database."; <br> <br>/* Close the database connection*/ <br>mysql_close(); <br>?> Easy. <br><br>We have stored the information in the database, so how can we browse the data? <br>Next, we try to list all the friends who like to eat apples and create the apple.php file <br><br>apple.php <br><br><?php <br>/* Define some related variables for use by the mysql_connect() function below*/ <br>$hostname="localhost"; <br> $username="root"; <br>$password=""; <br>$dbname="mydb"; <br>$userstable="infostar" ; <br><br>/* Establish a connection below and select Database*/ <br>mysql_connect($hostname,$username,$password) or die ("Unable to connect database"); <br>@mysql_select_db("$dbname")or die("Unable ro select database"); <br><br>/* Select all users who like Apple*/ <br>$query="SELECT * FROM $userstable WHERE choice='apple'"; <br>$result=mysql_query($query); <br><br>/* Calculate how many such users there are*/ <br>$number=mysql_num_rows($result); <br><br>/* Display the results*/ / <br>$i=0; <br>IF ($number==0){ <br>print"<center><p>No one likes Apple</center> ";} <br>ELSE { <br>print"<center><p>Users who like apples are: $number <br><br>"; <br>WHILE ($i<$number): <br>$name =mysql_result($result,$i,"name"); <br>$email=mysql_result($result,$i,"email"); <br>print"$name likes to eat apples<br>"; <br>print"Email address: $email<br><br>"; <br>$i++; <br>endwhile; <br>print"</center>"; <br>} <br>?> ; <br><br>Call apple.php in the browser and see what appears. <br><br> </p> <p align="left"></p> <div style="display:none;"> <span id="url" itemprop="url">http://www.bkjia.com/PHPjc/315735.html</span><span id="indexUrl" itemprop="indexUrl">www.bkjia.com</span><span id="isOriginal" itemprop="isOriginal">true</span><span id="isBasedOnUrl" itemprop="isBasedOnUrl">http: //www.bkjia.com/PHPjc/315735.html</span><span id="genre" itemprop="genre">TechArticle</span><span id="description" itemprop="description">1. Start by establishing a connection to the MySQL database. First, we should create an infostar table in a database in MySQL: Follow the steps of testing MySQL and see "mysq...</span> </div> <div class="art_confoot"></div> </div> </div> <div class="wzconShengming_sp"> <div class="bzsmdiv_sp">Statement of this Website</div> <div>The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn</div> </div> </div> <ins class="adsbygoogle" style="display:block" data-ad-format="autorelaxed" data-ad-client="ca-pub-5902227090019525" data-ad-slot="2507867629"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> <div class="AI_ToolDetails_main4sR"> <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-5902227090019525" data-ad-slot="3653428331" data-ad-format="auto" data-full-width-responsive="true"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> <!-- <div class="phpgenera_Details_mainR4"> <div class="phpmain1_4R_readrank"> <div class="phpmain1_4R_readrank_top"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/hotarticle2.png" alt="" /> <h2>Hot Article</h2> </div> <div class="phpgenera_Details_mainR4_bottom"> <div class="phpgenera_Details_mainR4_bottoms"> <a href="https://www.php.cn/faq/1796793874.html" title="How to fix KB5055523 fails to install in Windows 11?" class="phpgenera_Details_mainR4_bottom_title">How to fix KB5055523 fails to install in Windows 11?</a> <div class="phpgenera_Details_mainR4_bottoms_info"> <span>3 weeks ago</span> <span>By DDD</span> </div> </div> <div class="phpgenera_Details_mainR4_bottoms"> <a href="https://www.php.cn/faq/1796793871.html" title="How to fix KB5055518 fails to install in Windows 10?" class="phpgenera_Details_mainR4_bottom_title">How to fix KB5055518 fails to install in Windows 10?</a> <div class="phpgenera_Details_mainR4_bottoms_info"> <span>3 weeks ago</span> <span>By DDD</span> </div> </div> <div class="phpgenera_Details_mainR4_bottoms"> <a href="https://www.php.cn/faq/1796792155.html" title="Strength Levels for Every Enemy & Monster in R.E.P.O." class="phpgenera_Details_mainR4_bottom_title">Strength Levels for Every Enemy & Monster in R.E.P.O.</a> <div class="phpgenera_Details_mainR4_bottoms_info"> <span>3 weeks ago</span> <span>By 尊渡假赌尊渡假赌尊渡假赌</span> </div> </div> <div class="phpgenera_Details_mainR4_bottoms"> <a href="https://www.php.cn/faq/1796791957.html" title="Roblox: Dead Rails - How To Tame Wolves" class="phpgenera_Details_mainR4_bottom_title">Roblox: Dead Rails - How To Tame Wolves</a> <div class="phpgenera_Details_mainR4_bottoms_info"> <span>3 weeks ago</span> <span>By DDD</span> </div> </div> <div class="phpgenera_Details_mainR4_bottoms"> <a href="https://www.php.cn/faq/1796794243.html" title="Blue Prince: How To Get To The Basement" class="phpgenera_Details_mainR4_bottom_title">Blue Prince: How To Get To The Basement</a> <div class="phpgenera_Details_mainR4_bottoms_info"> <span>3 weeks ago</span> <span>By DDD</span> </div> </div> </div> <div class="phpgenera_Details_mainR3_more"> <a href="https://www.php.cn/article.html">Show More</a> </div> </div> </div> --> <div class="phpgenera_Details_mainR3"> <div class="phpmain1_4R_readrank"> <div class="phpmain1_4R_readrank_top"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/hottools2.png" alt="" /> <h2>Hot AI Tools</h2> </div> <div class="phpgenera_Details_mainR3_bottom"> <div class="phpmain_tab2_mids_top"> <a href="https://www.php.cn/ai/undresserai-undress" title="Undresser.AI Undress" class="phpmain_tab2_mids_top_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" class="lazy" data-src="https://img.php.cn/upload/ai_manual/001/246/273/173411540686492.jpg?x-oss-process=image/resize,m_fill,h_50,w_50" src="/static/imghw/default1.png" alt="Undresser.AI Undress" /> </a> <div class="phpmain_tab2_mids_info"> <a href="https://www.php.cn/ai/undresserai-undress" title="Undresser.AI Undress" class="phpmain_tab2_mids_title"> <h3>Undresser.AI Undress</h3> </a> <p>AI-powered app for creating realistic nude photos</p> </div> </div> <div class="phpmain_tab2_mids_top"> <a href="https://www.php.cn/ai/ai-clothes-remover" title="AI Clothes Remover" class="phpmain_tab2_mids_top_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" class="lazy" data-src="https://img.php.cn/upload/ai_manual/001/246/273/173411552797167.jpg?x-oss-process=image/resize,m_fill,h_50,w_50" src="/static/imghw/default1.png" alt="AI Clothes Remover" /> </a> <div class="phpmain_tab2_mids_info"> <a href="https://www.php.cn/ai/ai-clothes-remover" title="AI Clothes Remover" class="phpmain_tab2_mids_title"> <h3>AI Clothes Remover</h3> </a> <p>Online AI tool for removing clothes from photos.</p> </div> </div> <div class="phpmain_tab2_mids_top"> <a href="https://www.php.cn/ai/undress-ai-tool" title="Undress AI Tool" class="phpmain_tab2_mids_top_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" class="lazy" data-src="https://img.php.cn/upload/ai_manual/001/246/273/173410641626608.jpg?x-oss-process=image/resize,m_fill,h_50,w_50" src="/static/imghw/default1.png" alt="Undress AI Tool" /> </a> <div class="phpmain_tab2_mids_info"> <a href="https://www.php.cn/ai/undress-ai-tool" title="Undress AI Tool" class="phpmain_tab2_mids_title"> <h3>Undress AI Tool</h3> </a> <p>Undress images for free</p> </div> </div> <div class="phpmain_tab2_mids_top"> <a href="https://www.php.cn/ai/clothoffio" title="Clothoff.io" class="phpmain_tab2_mids_top_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" class="lazy" data-src="https://img.php.cn/upload/ai_manual/001/246/273/173411529149311.jpg?x-oss-process=image/resize,m_fill,h_50,w_50" src="/static/imghw/default1.png" alt="Clothoff.io" /> </a> <div class="phpmain_tab2_mids_info"> <a href="https://www.php.cn/ai/clothoffio" title="Clothoff.io" class="phpmain_tab2_mids_title"> <h3>Clothoff.io</h3> </a> <p>AI clothes remover</p> </div> </div> <div class="phpmain_tab2_mids_top"> <a href="https://www.php.cn/ai/video-swap" title="Video Face Swap" class="phpmain_tab2_mids_top_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" class="lazy" data-src="https://img.php.cn/upload/ai_manual/001/246/273/173414504068133.jpg?x-oss-process=image/resize,m_fill,h_50,w_50" src="/static/imghw/default1.png" alt="Video Face Swap" /> </a> <div class="phpmain_tab2_mids_info"> <a href="https://www.php.cn/ai/video-swap" title="Video Face Swap" class="phpmain_tab2_mids_title"> <h3>Video Face Swap</h3> </a> <p>Swap faces in any video effortlessly with our completely free AI face swap tool!</p> </div> </div> </div> <div class="phpgenera_Details_mainR3_more"> <a href="https://www.php.cn/ai">Show More</a> </div> </div> </div> <script src="https://sw.php.cn/hezuo/cac1399ab368127f9b113b14eb3316d0.js" type="text/javascript"></script> <div class="phpgenera_Details_mainR4"> <div class="phpmain1_4R_readrank"> <div class="phpmain1_4R_readrank_top"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/hotarticle2.png" alt="" /> <h2>Hot Article</h2> </div> <div class="phpgenera_Details_mainR4_bottom"> <div class="phpgenera_Details_mainR4_bottoms"> <a href="https://www.php.cn/faq/1796793874.html" title="How to fix KB5055523 fails to install in Windows 11?" class="phpgenera_Details_mainR4_bottom_title">How to fix KB5055523 fails to install in Windows 11?</a> <div class="phpgenera_Details_mainR4_bottoms_info"> <span>3 weeks ago</span> <span>By DDD</span> </div> </div> <div class="phpgenera_Details_mainR4_bottoms"> <a href="https://www.php.cn/faq/1796793871.html" title="How to fix KB5055518 fails to install in Windows 10?" class="phpgenera_Details_mainR4_bottom_title">How to fix KB5055518 fails to install in Windows 10?</a> <div class="phpgenera_Details_mainR4_bottoms_info"> <span>3 weeks ago</span> <span>By DDD</span> </div> </div> <div class="phpgenera_Details_mainR4_bottoms"> <a href="https://www.php.cn/faq/1796792155.html" title="Strength Levels for Every Enemy & Monster in R.E.P.O." class="phpgenera_Details_mainR4_bottom_title">Strength Levels for Every Enemy & Monster in R.E.P.O.</a> <div class="phpgenera_Details_mainR4_bottoms_info"> <span>3 weeks ago</span> <span>By 尊渡假赌尊渡假赌尊渡假赌</span> </div> </div> <div class="phpgenera_Details_mainR4_bottoms"> <a href="https://www.php.cn/faq/1796791957.html" title="Roblox: Dead Rails - How To Tame Wolves" class="phpgenera_Details_mainR4_bottom_title">Roblox: Dead Rails - How To Tame Wolves</a> <div class="phpgenera_Details_mainR4_bottoms_info"> <span>3 weeks ago</span> <span>By DDD</span> </div> </div> <div class="phpgenera_Details_mainR4_bottoms"> <a href="https://www.php.cn/faq/1796794243.html" title="Blue Prince: How To Get To The Basement" class="phpgenera_Details_mainR4_bottom_title">Blue Prince: How To Get To The Basement</a> <div class="phpgenera_Details_mainR4_bottoms_info"> <span>3 weeks ago</span> <span>By DDD</span> </div> </div> </div> <div class="phpgenera_Details_mainR3_more"> <a href="https://www.php.cn/article.html">Show More</a> </div> </div> </div> <div class="phpgenera_Details_mainR3"> <div class="phpmain1_4R_readrank"> <div class="phpmain1_4R_readrank_top"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/hottools2.png" alt="" /> <h2>Hot Tools</h2> </div> <div class="phpgenera_Details_mainR3_bottom"> <div class="phpmain_tab2_mids_top"> <a href="https://www.php.cn/toolset/development-tools/92" title="Notepad++7.3.1" class="phpmain_tab2_mids_top_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" class="lazy" data-src="https://img.php.cn/upload/manual/000/000/001/58ab96f0f39f7357.jpg?x-oss-process=image/resize,m_fill,h_50,w_72" src="/static/imghw/default1.png" alt="Notepad++7.3.1" /> </a> <div class="phpmain_tab2_mids_info"> <a href="https://www.php.cn/toolset/development-tools/92" title="Notepad++7.3.1" class="phpmain_tab2_mids_title"> <h3>Notepad++7.3.1</h3> </a> <p>Easy-to-use and free code editor</p> </div> </div> <div class="phpmain_tab2_mids_top"> <a href="https://www.php.cn/toolset/development-tools/93" title="SublimeText3 Chinese version" class="phpmain_tab2_mids_top_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" class="lazy" data-src="https://img.php.cn/upload/manual/000/000/001/58ab97a3baad9677.jpg?x-oss-process=image/resize,m_fill,h_50,w_72" src="/static/imghw/default1.png" alt="SublimeText3 Chinese version" /> </a> <div class="phpmain_tab2_mids_info"> <a href="https://www.php.cn/toolset/development-tools/93" title="SublimeText3 Chinese version" class="phpmain_tab2_mids_title"> <h3>SublimeText3 Chinese version</h3> </a> <p>Chinese version, very easy to use</p> </div> </div> <div class="phpmain_tab2_mids_top"> <a href="https://www.php.cn/toolset/development-tools/121" title="Zend Studio 13.0.1" class="phpmain_tab2_mids_top_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" class="lazy" data-src="https://img.php.cn/upload/manual/000/000/001/58ab97ecd1ab2670.jpg?x-oss-process=image/resize,m_fill,h_50,w_72" src="/static/imghw/default1.png" alt="Zend Studio 13.0.1" /> </a> <div class="phpmain_tab2_mids_info"> <a href="https://www.php.cn/toolset/development-tools/121" title="Zend Studio 13.0.1" class="phpmain_tab2_mids_title"> <h3>Zend Studio 13.0.1</h3> </a> <p>Powerful PHP integrated development environment</p> </div> </div> <div class="phpmain_tab2_mids_top"> <a href="https://www.php.cn/toolset/development-tools/469" title="Dreamweaver CS6" class="phpmain_tab2_mids_top_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" class="lazy" data-src="https://img.php.cn/upload/manual/000/000/001/58d0e0fc74683535.jpg?x-oss-process=image/resize,m_fill,h_50,w_72" src="/static/imghw/default1.png" alt="Dreamweaver CS6" /> </a> <div class="phpmain_tab2_mids_info"> <a href="https://www.php.cn/toolset/development-tools/469" title="Dreamweaver CS6" class="phpmain_tab2_mids_title"> <h3>Dreamweaver CS6</h3> </a> <p>Visual web development tools</p> </div> </div> <div class="phpmain_tab2_mids_top"> <a href="https://www.php.cn/toolset/development-tools/500" title="SublimeText3 Mac version" class="phpmain_tab2_mids_top_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" class="lazy" data-src="https://img.php.cn/upload/manual/000/000/001/58d34035e2757995.png?x-oss-process=image/resize,m_fill,h_50,w_72" src="/static/imghw/default1.png" alt="SublimeText3 Mac version" /> </a> <div class="phpmain_tab2_mids_info"> <a href="https://www.php.cn/toolset/development-tools/500" title="SublimeText3 Mac version" class="phpmain_tab2_mids_title"> <h3>SublimeText3 Mac version</h3> </a> <p>God-level code editing software (SublimeText3)</p> </div> </div> </div> <div class="phpgenera_Details_mainR3_more"> <a href="https://www.php.cn/ai">Show More</a> </div> </div> </div> <div class="phpgenera_Details_mainR4"> <div class="phpmain1_4R_readrank"> <div class="phpmain1_4R_readrank_top"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/hotarticle2.png" alt="" /> <h2>Hot Topics</h2> </div> <div class="phpgenera_Details_mainR4_bottom"> <div class="phpgenera_Details_mainR4_bottoms"> <a href="https://www.php.cn/faq/java-tutorial" title="Java Tutorial" class="phpgenera_Details_mainR4_bottom_title">Java Tutorial</a> <div class="phpgenera_Details_mainR4_bottoms_info"> <div class="phpgenera_Details_mainR4_bottoms_infos"> <img src="/static/imghw/eyess.png" alt="" /> <span>1655</span> </div> <div class="phpgenera_Details_mainR4_bottoms_infos"> <img src="/static/imghw/tiezi.png" alt="" /> <span>14</span> </div> </div> </div> <div class="phpgenera_Details_mainR4_bottoms"> <a href="https://www.php.cn/faq/cakephp-tutor" title="CakePHP Tutorial" class="phpgenera_Details_mainR4_bottom_title">CakePHP Tutorial</a> <div class="phpgenera_Details_mainR4_bottoms_info"> <div class="phpgenera_Details_mainR4_bottoms_infos"> <img src="/static/imghw/eyess.png" alt="" /> <span>1413</span> </div> <div class="phpgenera_Details_mainR4_bottoms_infos"> <img src="/static/imghw/tiezi.png" alt="" /> <span>52</span> </div> </div> </div> <div class="phpgenera_Details_mainR4_bottoms"> <a href="https://www.php.cn/faq/laravel-tutori" title="Laravel Tutorial" class="phpgenera_Details_mainR4_bottom_title">Laravel Tutorial</a> <div class="phpgenera_Details_mainR4_bottoms_info"> <div class="phpgenera_Details_mainR4_bottoms_infos"> <img src="/static/imghw/eyess.png" alt="" /> <span>1306</span> </div> <div class="phpgenera_Details_mainR4_bottoms_infos"> <img src="/static/imghw/tiezi.png" alt="" /> <span>25</span> </div> </div> </div> <div class="phpgenera_Details_mainR4_bottoms"> <a href="https://www.php.cn/faq/php-tutorial" title="PHP Tutorial" class="phpgenera_Details_mainR4_bottom_title">PHP Tutorial</a> <div class="phpgenera_Details_mainR4_bottoms_info"> <div class="phpgenera_Details_mainR4_bottoms_infos"> <img src="/static/imghw/eyess.png" alt="" /> <span>1252</span> </div> <div class="phpgenera_Details_mainR4_bottoms_infos"> <img src="/static/imghw/tiezi.png" alt="" /> <span>29</span> </div> </div> </div> <div class="phpgenera_Details_mainR4_bottoms"> <a href="https://www.php.cn/faq/c-tutorial" title="C# Tutorial" class="phpgenera_Details_mainR4_bottom_title">C# Tutorial</a> <div class="phpgenera_Details_mainR4_bottoms_info"> <div class="phpgenera_Details_mainR4_bottoms_infos"> <img src="/static/imghw/eyess.png" alt="" /> <span>1226</span> </div> <div class="phpgenera_Details_mainR4_bottoms_infos"> <img src="/static/imghw/tiezi.png" alt="" /> <span>24</span> </div> </div> </div> </div> <div class="phpgenera_Details_mainR3_more"> <a href="https://www.php.cn/faq/zt">Show More</a> </div> </div> </div> </div> </div> <div class="Article_Details_main2"> <div class="phpgenera_Details_mainL4"> <div class="phpmain1_2_top"> <a href="javascript:void(0);" class="phpmain1_2_top_title">Related knowledge<img src="/static/imghw/index2_title2.png" alt="" /></a> </div> <div class="phpgenera_Details_mainL4_info"> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/1796797335.html" title="MySQL's Role: Databases in Web Applications" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/253/068/174482060157788.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="MySQL's Role: Databases in Web Applications" /> </a> <a href="https://www.php.cn/faq/1796797335.html" title="MySQL's Role: Databases in Web Applications" class="phphistorical_Version2_mids_title">MySQL's Role: Databases in Web Applications</a> <span class="Articlelist_txts_time">Apr 17, 2025 am 12:23 AM</span> <p class="Articlelist_txts_p">The main role of MySQL in web applications is to store and manage data. 1.MySQL efficiently processes user information, product catalogs, transaction records and other data. 2. Through SQL query, developers can extract information from the database to generate dynamic content. 3.MySQL works based on the client-server model to ensure acceptable query speed.</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/1796798265.html" title="Laravel Introduction Example" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/202412/13/2024121302364844513.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="Laravel Introduction Example" /> </a> <a href="https://www.php.cn/faq/1796798265.html" title="Laravel Introduction Example" class="phphistorical_Version2_mids_title">Laravel Introduction Example</a> <span class="Articlelist_txts_time">Apr 18, 2025 pm 12:45 PM</span> <p class="Articlelist_txts_p">Laravel is a PHP framework for easy building of web applications. It provides a range of powerful features including: Installation: Install the Laravel CLI globally with Composer and create applications in the project directory. Routing: Define the relationship between the URL and the handler in routes/web.php. View: Create a view in resources/views to render the application's interface. Database Integration: Provides out-of-the-box integration with databases such as MySQL and uses migration to create and modify tables. Model and Controller: The model represents the database entity and the controller processes HTTP requests.</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/1796797952.html" title="Solve database connection problem: a practical case of using minii/db library" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/000/465/014/174245090613478.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="Solve database connection problem: a practical case of using minii/db library" /> </a> <a href="https://www.php.cn/faq/1796797952.html" title="Solve database connection problem: a practical case of using minii/db library" class="phphistorical_Version2_mids_title">Solve database connection problem: a practical case of using minii/db library</a> <span class="Articlelist_txts_time">Apr 18, 2025 am 07:09 AM</span> <p class="Articlelist_txts_p">I encountered a tricky problem when developing a small application: the need to quickly integrate a lightweight database operation library. After trying multiple libraries, I found that they either have too much functionality or are not very compatible. Eventually, I found minii/db, a simplified version based on Yii2 that solved my problem perfectly.</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/1796798268.html" title="Laravel framework installation method" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/202412/05/2024120511030771845.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="Laravel framework installation method" /> </a> <a href="https://www.php.cn/faq/1796798268.html" title="Laravel framework installation method" class="phphistorical_Version2_mids_title">Laravel framework installation method</a> <span class="Articlelist_txts_time">Apr 18, 2025 pm 12:54 PM</span> <p class="Articlelist_txts_p">Article summary: This article provides detailed step-by-step instructions to guide readers on how to easily install the Laravel framework. Laravel is a powerful PHP framework that speeds up the development process of web applications. This tutorial covers the installation process from system requirements to configuring databases and setting up routing. By following these steps, readers can quickly and efficiently lay a solid foundation for their Laravel project.</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/1796800127.html" title="MySQL and phpMyAdmin: Core Features and Functions" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/253/068/174525193248938.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="MySQL and phpMyAdmin: Core Features and Functions" /> </a> <a href="https://www.php.cn/faq/1796800127.html" title="MySQL and phpMyAdmin: Core Features and Functions" class="phphistorical_Version2_mids_title">MySQL and phpMyAdmin: Core Features and Functions</a> <span class="Articlelist_txts_time">Apr 22, 2025 am 12:12 AM</span> <p class="Articlelist_txts_p">MySQL and phpMyAdmin are powerful database management tools. 1) MySQL is used to create databases and tables, and to execute DML and SQL queries. 2) phpMyAdmin provides an intuitive interface for database management, table structure management, data operations and user permission management.</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/1796800575.html" title="Oracle's Role in the Business World" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/000/887/227/174533770284277.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="Oracle's Role in the Business World" /> </a> <a href="https://www.php.cn/faq/1796800575.html" title="Oracle's Role in the Business World" class="phphistorical_Version2_mids_title">Oracle's Role in the Business World</a> <span class="Articlelist_txts_time">Apr 23, 2025 am 12:01 AM</span> <p class="Articlelist_txts_p">Oracle is not only a database company, but also a leader in cloud computing and ERP systems. 1. Oracle provides comprehensive solutions from database to cloud services and ERP systems. 2. OracleCloud challenges AWS and Azure, providing IaaS, PaaS and SaaS services. 3. Oracle's ERP systems such as E-BusinessSuite and FusionApplications help enterprises optimize operations.</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/1796798382.html" title="MySQL vs. Other Programming Languages: A Comparison" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/253/068/174499332116315.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="MySQL vs. Other Programming Languages: A Comparison" /> </a> <a href="https://www.php.cn/faq/1796798382.html" title="MySQL vs. Other Programming Languages: A Comparison" class="phphistorical_Version2_mids_title">MySQL vs. Other Programming Languages: A Comparison</a> <span class="Articlelist_txts_time">Apr 19, 2025 am 12:22 AM</span> <p class="Articlelist_txts_p">Compared with other programming languages, MySQL is mainly used to store and manage data, while other languages ​​such as Python, Java, and C are used for logical processing and application development. MySQL is known for its high performance, scalability and cross-platform support, suitable for data management needs, while other languages ​​have advantages in their respective fields such as data analytics, enterprise applications, and system programming.</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/1796797820.html" title="MySQL for Beginners: Getting Started with Database Management" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/253/068/174490624069087.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="MySQL for Beginners: Getting Started with Database Management" /> </a> <a href="https://www.php.cn/faq/1796797820.html" title="MySQL for Beginners: Getting Started with Database Management" class="phphistorical_Version2_mids_title">MySQL for Beginners: Getting Started with Database Management</a> <span class="Articlelist_txts_time">Apr 18, 2025 am 12:10 AM</span> <p class="Articlelist_txts_p">The basic operations of MySQL include creating databases, tables, and using SQL to perform CRUD operations on data. 1. Create a database: CREATEDATABASEmy_first_db; 2. Create a table: CREATETABLEbooks(idINTAUTO_INCREMENTPRIMARYKEY, titleVARCHAR(100)NOTNULL, authorVARCHAR(100)NOTNULL, published_yearINT); 3. Insert data: INSERTINTObooks(title, author, published_year)VA</p> </div> </div> <a href="https://www.php.cn/be/" class="phpgenera_Details_mainL4_botton"> <span>See all articles</span> <img src="/static/imghw/down_right.png" alt="" /> </a> </div> </div> </div> </main> <footer> <div class="footer"> <div class="footertop"> <img src="/static/imghw/logo.png" alt=""> <p>Public welfare online PHP training,Help PHP learners grow quickly!</p> </div> <div class="footermid"> <a href="https://www.php.cn/about/us.html">About us</a> <a href="https://www.php.cn/about/disclaimer.html">Disclaimer</a> <a href="https://www.php.cn/update/article_0_1.html">Sitemap</a> </div> <div class="footerbottom"> <p> © php.cn All rights reserved </p> </div> </div> </footer> <input type="hidden" id="verifycode" value="/captcha.html"> <script>layui.use(['element', 'carousel'], function () {var element = layui.element;$ = layui.jquery;var carousel = layui.carousel;carousel.render({elem: '#test1', width: '100%', height: '330px', arrow: 'always'});$.getScript('/static/js/jquery.lazyload.min.js', function () {$("img").lazyload({placeholder: "/static/images/load.jpg", effect: "fadeIn", threshold: 200, skip_invisible: false});});});</script> <script src="/static/js/common_new.js"></script> <script type="text/javascript" src="/static/js/jquery.cookie.js?1746334102"></script> <script src="https://vdse.bdstatic.com//search-video.v1.min.js"></script> <link rel='stylesheet' id='_main-css' href='/static/css/viewer.min.css?2' type='text/css' media='all' /> <script type='text/javascript' src='/static/js/viewer.min.js?1'></script> <script type='text/javascript' src='/static/js/jquery-viewer.min.js'></script> <script type="text/javascript" src="/static/js/global.min.js?5.5.53"></script> <script> var _paq = window._paq = window._paq || []; /* tracker methods like "setCustomDimension" should be called before "trackPageView" */ _paq.push(['trackPageView']); _paq.push(['enableLinkTracking']); (function () { var u = "https://tongji.php.cn/"; _paq.push(['setTrackerUrl', u + 'matomo.php']); _paq.push(['setSiteId', '9']); var d = document, g = d.createElement('script'), s = d.getElementsByTagName('script')[0]; g.async = true; g.src = u + 'matomo.js'; s.parentNode.insertBefore(g, s); })(); </script> <script> // top layui.use(function () { var util = layui.util; util.fixbar({ on: { mouseenter: function (type) { layer.tips(type, this, { tips: 4, fixed: true, }); }, mouseleave: function (type) { layer.closeAll("tips"); }, }, }); }); document.addEventListener("DOMContentLoaded", (event) => { // 定义一个函数来处理滚动链接的点击事件 function setupScrollLink(scrollLinkId, targetElementId) { const scrollLink = document.getElementById(scrollLinkId); const targetElement = document.getElementById(targetElementId); if (scrollLink && targetElement) { scrollLink.addEventListener("click", (e) => { e.preventDefault(); // 阻止默认链接行为 targetElement.scrollIntoView({ behavior: "smooth" }); // 平滑滚动到目标元素 }); } else { console.warn( `Either scroll link with ID '${scrollLinkId}' or target element with ID '${targetElementId}' not found.` ); } } // 使用该函数设置多个滚动链接 setupScrollLink("Article_Details_main1L2s_1", "article_main_title1"); setupScrollLink("Article_Details_main1L2s_2", "article_main_title2"); setupScrollLink("Article_Details_main1L2s_3", "article_main_title3"); setupScrollLink("Article_Details_main1L2s_4", "article_main_title4"); setupScrollLink("Article_Details_main1L2s_5", "article_main_title5"); setupScrollLink("Article_Details_main1L2s_6", "article_main_title6"); // 可以继续添加更多的滚动链接设置 }); window.addEventListener("scroll", function () { var fixedElement = document.getElementById("Article_Details_main1Lmain"); var scrollTop = window.scrollY || document.documentElement.scrollTop; // 兼容不同浏览器 var clientHeight = window.innerHeight || document.documentElement.clientHeight; // 视口高度 var scrollHeight = document.documentElement.scrollHeight; // 页面总高度 // 计算距离底部的距离 var distanceToBottom = scrollHeight - scrollTop - clientHeight; // 当距离底部小于或等于300px时,取消固定定位 if (distanceToBottom <= 980) { fixedElement.classList.remove("Article_Details_main1Lmain"); fixedElement.classList.add("Article_Details_main1Lmain_relative"); } else { // 否则,保持固定定位 fixedElement.classList.remove("Article_Details_main1Lmain_relative"); fixedElement.classList.add("Article_Details_main1Lmain"); } }); </script> <script> document.addEventListener('DOMContentLoaded', function() { const mainNav = document.querySelector('.Article_Details_main1Lmain'); const header = document.querySelector('header'); if (mainNav) { window.addEventListener('scroll', function() { const scrollPosition = window.scrollY; if (scrollPosition > 84) { mainNav.classList.add('fixed'); } else { mainNav.classList.remove('fixed'); } }); } }); </script> </body> </html>