Table of Contents
Example
Home Backend Development PHP Tutorial How to write a PHP script to get data from a MySQL table based on certain conditions?

How to write a PHP script to get data from a MySQL table based on certain conditions?

Sep 03, 2023 pm 04:09 PM
mysql php Script

How to write a PHP script to get data from a MySQL table based on certain conditions?

If we want to get conditional data from MySQL table, then we can write WHERE clause in SQL statement and use it in PHP script. When writing PHP scripts, we can use the PHP function mysql_query(). This function is used to execute a SQL command and later you can use another PHP function mysql_fetch_array() to get all the selected data. This function returns a row as an associative array, a numeric array, or both. If there are no more rows, this function returns FALSE. To illustrate this, we have the following example -

Example

In this example, we are writing a PHP script which will return a file named 'tutorial_tbl', The author’s name is Sanjay -

<?php
   $dbhost = &#39;localhost:3036&#39;;
   $dbuser = &#39;root&#39;;
   $dbpass = &#39;rootpassword&#39;;
   $conn = mysql_connect($dbhost, $dbuser, $dbpass);
   
   if(! $conn ) {
      die(&#39;Could not connect: &#39; . mysql_error());
   }
   $sql = &#39;SELECT tutorial_id, tutorial_title,
      tutorial_author, submission_date
      FROM tutorials_tbl
      WHERE tutorial_author = "Sanjay"&#39;;

   mysql_select_db(&#39;TUTORIALS&#39;);
   $retval = mysql_query( $sql, $conn );
   
   if(! $retval ) {
      die(&#39;Could not get data: &#39; . mysql_error());
   }
   
   while($row = mysql_fetch_array($retval, MYSQL_ASSOC)) {
      echo "Tutorial ID :{$row[&#39;tutorial_id&#39;]} <br> ".
         "Title: {$row[&#39;tutorial_title&#39;]} <br> ".
         "Author: {$row[&#39;tutorial_author&#39;]} <br> ".
         "Submission Date : {$row[&#39;submission_date&#39;]} <br> ".
         "--------------------------------<br>";
   }
   echo "Fetched data successfully</p><p>";
   mysql_close($conn);
?>
Copy after login

The above is the detailed content of How to write a PHP script to get data from a MySQL table based on certain conditions?. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
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

Hot Article Tags

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian Dec 24, 2024 pm 04:42 PM

PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian

CakePHP Date and Time CakePHP Date and Time Sep 10, 2024 pm 05:27 PM

CakePHP Date and Time

CakePHP File upload CakePHP File upload Sep 10, 2024 pm 05:27 PM

CakePHP File upload

CakePHP Routing CakePHP Routing Sep 10, 2024 pm 05:25 PM

CakePHP Routing

CakePHP Project Configuration CakePHP Project Configuration Sep 10, 2024 pm 05:25 PM

CakePHP Project Configuration

Discuss CakePHP Discuss CakePHP Sep 10, 2024 pm 05:28 PM

Discuss CakePHP

How to fix mysql_native_password not loaded errors on MySQL 8.4 How to fix mysql_native_password not loaded errors on MySQL 8.4 Dec 09, 2024 am 11:42 AM

How to fix mysql_native_password not loaded errors on MySQL 8.4

CakePHP Quick Guide CakePHP Quick Guide Sep 10, 2024 pm 05:27 PM

CakePHP Quick Guide

See all articles